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HSE Specification - Ionising Radiation SP 1237

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  • 8/10/2019 HSE Specification - Ionising Radiation SP 1237

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    Petroleum Development Oman L.L.C.

    Health Safety Environment & SD

    Specification for Ionising Raiation

    User Note:

    The requirements of this document are mandatory. Non-compliance shall only be authorised bythe Document Owner or his Delegate through STEP-OUTapproval.

    controlled copy of the current version of this document is on !DO"s #D$%. &efore ma'ingreference to this document( it is the user"s responsibility to ensure that any hard copy( orelectronic copy( is current. )or assistance( contact the Document Custodian or the DocumentController.

    Users are encouraged to participate in the ongoing improvement of this document by providingconstructive feedback.

    Please familiarise yourself !ith the

    Document Security Classification Definitions

    "hey also apply to this Document#

    $%RES"RIC"ED Document ID SP'()*+Oct'(, -iling ey /usiness Control

    mailto:[email protected]?subject=Ref:%20SP-1219,%20Well%20Engineering%20H2S%20Specificationmailto:[email protected]?subject=Ref:%20SP-1219,%20Well%20Engineering%20H2S%20Specificationmailto:[email protected]?subject=Ref:%20SP-1219,%20Well%20Engineering%20H2S%20Specificationhttp://sww3.pdo.shell.om/getdoc?dataid=3966312mailto:[email protected]?subject=Ref:%20SP-1219,%20Well%20Engineering%20H2S%20Specificationmailto:[email protected]?subject=Ref:%20SP-1219,%20Well%20Engineering%20H2S%20Specificationhttp://sww3.pdo.shell.om/getdoc?dataid=3966312
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    Petroleum Development Oman LLC*evision: +

    #ffective: , $ay +,,

    This page was intentionally left blank

    !age + %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

    The controlled version of this 4$) Document resides online in 5ivelin'6. !rinted copies are UN4ONT*O55#D.

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    Petroleum Development Oman LLC*evision: +

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    i Document 0uthorisation

    0uthorise -or Issue

    Document 0uthorisation

    Document 0uthority

    1C-DH2

    Document Custoian Document Controller

    Dr %uad l-5am'i

    7ead of Occupational 7ealth

    *ef. 0nd: $%#2

    Date: , $ay +,,

    &rett 8oung%enior 0ndustrial 7ygienist 94orporate *adiation )ocal !oint

    *ef. 0nd: $%#2+

    Date: , $ay +,,

    &rett 8oung%enior 0ndustrial 7ygienist 94orporate *adiation )ocal !oint

    *ef. 0nd: $%#2+

    Date: , $ay +,,

    !age %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

    The controlled version of this 4$) Document resides online in 5ivelin'6. !rinted copies are UN4ONT*O55#D.

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    Petroleum Development Oman LLC*evision: +

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    ii Revision History

    The following is a brief summary of the 3 most recent revisions to this document. Details of allrevisions prior to these are held on file by the issuing department.

    3ersion %o. Date 0uthor Scope 4 Remar5s

    ersion +. ,2 ,,2+, &rett 8oung

    *ef. 0nd: $%#2+

    4hanges to ma;imum source siob %pecific 7%# plan for all radiography wor'

    larming dose meters for 4lassified *adiation=or'ers

    Notification of lost or abandoned sources to$#4

    ersion ,. ,?2+2++ =ayne ustin

    *ef. 0nd: 4%$2+

    Date: ,2,2+

    0nitial issue. %upersedes:

    7%#-%$: 4h 3( s 1. @*ev.,( Oct-A1B and 4h

    ,+( s.C.1 @*ev.( Oct-A1B

    O7$E: %ection +( EN, @,AA1B

    iii Relate /usiness Processes

    Coe /usiness Process 1EP/6 ,.72

    iv Relate Corporate 6anagement -rame 8or5 1C6-2 Documents

    The related 4$) Documents can be retrieved from the 4orporate &usiness 4ontrol Documentation*egister TAXI.

    !age 3 %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

    The controlled version of this 4$) Document resides online in 5ivelin'6. !rinted copies are UN4ONT*O55#D.

    http://sww9.pdo.shell.om/dept/tsd/tcc/tcp/apps/taxi/index_sub.htm%20http://sww9.pdo.shell.om/dept/tsd/tcc/tcp/apps/taxi/index_sub.htm%20http://sww9.pdo.shell.om/dept/tsd/tcc/tcp/apps/taxi/index_sub.htm%20
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    Petroleum Development Oman LLC*evision: +

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    "0/LE O- CO%"E%"S

    i Document uthorisation........................................................................................................

    ii *evision 7istory....................................................................................................................3

    iii *elated &usiness !rocesses.................................................................................................3

    iv *elated 4orporate $anagement )rame =or' @4$)B Documents.........................................3

    , 0ntroduction............................................................................................................................ /

    ,., !urpose.........................................................................................................................../

    ,.+ %cope............................................................................................................................../

    ,. Definitions......................................................................................................................../

    ,.., Units................................................................................................................................ ?

    ,.3 &asic *ules for using radioactive materials.....................................................................?

    ,.C 5egal and Other *equirements........................................................................................A

    ,.1 Deliverables.....................................................................................................................A

    ,.1., *ecords..................................................................................................................... A

    ,.1.+ *eports.....................................................................................................................A

    ,./ *eview and 0mprovement................................................................................................A

    + !erformance *equirements.................................................................................................,

    +., !erformance $onitoring................................................................................................,

    Organisation 9 *esponsibilities...........................................................................................,+

    ., *adiation dvisory 4ommittee.......................................................................................,+

    .+ 4orporate *adiation )ocal !oint....................................................................................,+

    .1 Directors and !roFect $anagers....................................................................................,3

    ./ 4orporate )unctional Discipline 7eads.........................................................................,3

    .? 4ontract 7olders............................................................................................................,3

    .A 4ontractors and %ub-4ontractors..................................................................................,C

    3 *adiation %afety $anagement %ystem...............................................................................,1

    C 0mport..................................................................................................................................,/

    C., *adioactive %ource %hielding........................................................................................,/

    C.+ *adioactive %ource $ovement 4ontrol.........................................................................,?

    1 Transport.............................................................................................................................,A

    1., Eeneral *equirements..................................................................................................,A

    1.+ $inisterial Decree *equirements for Transport of *adioactive $aterials......................,A

    1. dditional *equirements for Transport of *adioactive %ubstances...............................+

    / %torage................................................................................................................................ ++

    /., $inisterial Decree @$D +3A2A/B *equirements for %torage of *adioactive $aterials....++

    /.+ dditional *equirements for the %torage of *adioactive %ources.................................++

    /. *adioactive %ource 0ntegrity $onitoring........................................................................+

    /.3 G-ray #quipment............................................................................................................+

    !age C %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

    The controlled version of this 4$) Document resides online in 5ivelin'6. !rinted copies are UN4ONT*O55#D.

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    Petroleum Development Oman LLC*evision: +

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    ? Use...................................................................................................................................... +1

    ?., Eeneral *equirements..................................................................................................+1

    ?.+ Occupational Dose 5imits..............................................................................................+/

    ?. Dosimetric 4ontrol.........................................................................................................+??.3 =or' rea 4lassification and #ntry *estriction..............................................................+?

    ?.C 0nstruments....................................................................................................................+A

    ?.1 Training..........................................................................................................................+A

    ?./ $edical 4ontrol..............................................................................................................

    ?.? Design and Use of %hielded #nclosures @)i;ed )acilitiesB............................................

    A Disposal...............................................................................................................................,

    A., bandonment of *adioactive $aterials @stuc' in-hole while loggingB............................,

    ,. #mergency *esponse.........................................................................................................+

    ,,. *eferences..........................................................................................................................

    ppendi; *adioactive %ource 4onsignment Note........................................................3

    ppendi; & H %torage )acility Design........................................................................................1

    ppendi; 4 H *adiography %upplementary 4ertificate...............................................................A

    !age 1 %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

    The controlled version of this 4$) Document resides online in 5ivelin'6. !rinted copies are UN4ONT*O55#D.

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    Petroleum Development Oman LLC*evision: +

    #ffective: , $ay +,,

    ( Introuction

    (.( Purpose

    This %pecification describes !DO"s requirements for managing radioactive materials andgenerators of ionising radiation to protect people and the environment from harmful effects ofionising radiation.

    (.) Scope

    This %pecification applies to all !DO( 4ontractor and %ub-4ontractor activities involvingionising radiation and outlines the requirements to be fulfilled.

    The %pecification does not apply to non-ionising radiation such as microwave(radiofrequency( ultraviolet( visible light and infrared radiation.

    This %pecification does not address Naturally Occurring *adioactive $aterials @NO*$Bwhich is covered in %!-,,/( 7%# %pecification - $anagement of Naturally Occurring

    *adioactive $aterials.

    (.* Definitions

    %ources of ionising radiation used within !DO can be divided into:

    ,. Seale sources4hemical sources emitting gamma rays and2or neutrons @Used in welllogging( fluid density( phase and thic'ness measurements and industrial radiographyB.

    +. $nseale sources *adioactive tracers @used in production flow investigationsB.. 9enerators G-ray equipment such as those used in production chemical @G-ray

    fluorescence G*)B( industrial radiography and medical imaging and miniature particleaccelerators @$initronB emitting high energy neutrons @used in well loggingB.

    Ionising Raiation: *adiation that produces ionisation in matter. #;amples are alphaparticles( beta particles( gamma-rays( G-rays and neutrons( often denoted by I( J-( K( G- andn-radiation respectively.

    Raioactive materialsare defined in Oman as any material with an activity concentrationgreater than , '&q2'g @, &q2gB.

    Classifie Raiological 8or5er0ndividuals who through the course of their wor' are li'elyto receive an annual dose equal or greater than + m%v2year. !ersonal monitoring andmedical surveillance are mandatory for radiological wor'ers.

    Controlle 0rea n area where immediate dose rates can e;ceed /.C L%v2h. Only4lassified radiation wor'ers shall enter into 4ontrolled reas.

    Supervise 0rea n area where the immediate dose rate e;ceeds +.C L%v2h but does not

    e;ceed /.C L%v2h.

    Seale Source radioactive substance sealed in a container which has sufficientmechanical strength to prevent contact with and dispersion of the radioactive material underthe conditions of use and wear for which it was designed.

    !age / %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

    The controlled version of this 4$) Document resides online in 5ivelin'6. !rinted copies are UN4ONT*O55#D.

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    Petroleum Development Oman LLC*evision: +

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    (.*.( $nits

    &ecquerel @&qB is the %.0. unit for the quantity of radioactivity defined as equal to one nucleardisintegration per second.

    4urie @4iB is the traditional unit for measurement of radioactivity based on the activity of one

    gram of radium( i.e. / billion disintegrations per second.

    , &ecquerel( &q M +/ p4i @+/ ; ,-,+4iB

    , 4urie( 4i M / E&q @/ ; ,A&qB

    The Eray is the %0 unit of absorbed radiation dose due to ioni

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    Petroleum Development Oman LLC*evision: +

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    (.< Legal an Other Re=uirements

    5egal requirements for the import( transport( storage or use of radioactive materials in the

    %ultanate of Oman are established in $inisterial Decree - $D +3A2A/ *egulations for the

    4ontrol and $anagement of *adioactive $aterials. This $inisterial Decree is administered

    by the $inistry for #nvironment and 4limate ffairs @$#4B.

    Oman is a $ember of the 0nternational tomic #nergy gency @0#B. The 0# has

    developed a comprehensive list of safety standards of which Oman has incorporated the

    *egulations for the %afe Transport of *adioactive $aterials into $D+3A2A/.

    The $inistry of $anpower Occupational 7ealth and %afety *egulations in the !rivate %ector

    also includes a section on ionising radiation and dose limits which have been incorporated

    into this %pecification.

    ny Organisation dealing with radioactive materials shall establish an internal radiation

    management system including staff structure with well defined responsibilities( written

    procedures of wor'( quality assurance procedures( staff training and emergency procedures

    so as to meet the $inistryPs and !DOPs requirements.

    0n addition( !DO will adhere to recommendations of the 0nternational 4ommission on

    *adiological !rotection provided these recommendations meet or e;ceed the requirements

    of $D +3A2A/.

    (.> Delivera:les

    6 Recors

    *ecords shall be maintained to document the implementation of this %pecification and shall

    be outlined in the 4ontractors 2 %ub-4ontractors *adiation %afety $anagement %ystem and

    safe wor'ing procedures. *ecords shall include a register of radiological wor'ers( personal

    radiation dose rates( site audits and inspection reports( registration of radioactive materials

    and radiation generators( wipe testing( transportation( storage and inspection measurements

    and disposal or return to manufacturer.

    6 2 Reports

    ny non-compliance with this %pecification shall be notified to the !DO !roFect $anager(

    4ontract 7older or !rincipal 4ontractor in relation to %ub-4ontractors. !ending the severity

    of the non-compliance an investigation shall be underta'en and the findings reported as

    above. )urther information on reporting non-conformances is outlined in 4!-,++ 7%#

    $anagement %ystem $anualQ.

    (.+ Revie! an Improvement

    ny user of this document who encounters a mista'e or confusing entry is requested to

    immediately notify the Document 4ustodian using the form provided in 4!-,++ 7%#

    $anagement %ystem $anualQ.

    This document shall be reviewed as necessary by the Document 4ustodian( but no less

    frequently than every four years. Triggers for full or partial review of this %pecification are

    listed in 4!-,++ 7%# $anagement %ystem $anualQ.

    !age A %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

    The controlled version of this 4$) Document resides online in 5ivelin'6. !rinted copies are UN4ONT*O55#D.

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    Petroleum Development Oman LLC*evision: +

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    ) Performance Re=uirements

    ).( Performance 6onitoring

    The responsibility for the importation( transport( storage( emergency response and use ofradioactive materials rests with the owner @custodianB referenced on the $#4 permit and shall

    be subFected to performance monitoring in accordance with the owners radiation safety

    management system and 4ontractual requirements.

    4ontractors and sub-contractors who own and utilise radioactive materials and generators shall

    be pre-approved by the 4orporate *adiation )ocal !oint 9 4)D7 prior to acceptance onto the

    !DO vendor list. This will include a pre-approval audit and review of the 4ontractors2 %ub-

    4ontractors *adiation %afety $anagement %ystem and safe wor'ing procedures.

    ).(.( Pro?ect 6anagers an Contract Holers

    !roFect $anagers and 4ontract 7olders shall underta'e regular audits of contractors handling(

    storing or transporting radioactive materials and generators for !DO activities. The audit

    program shall include a review of the owners *adiation %afety $anagement %ystem and!rocedures to demonstrate compliance with this %pecification. fter the initial start-up audit( the

    period of inspections and audits conducted by the !roFect $anager or 4ontract 7older shall be

    as a minimum si; monthly and shall involve personnel with radiation e;pertise @i.e. *adiation

    !rotection %upervisor for that type of radioactive material and usageB. The audit findings shall be

    provided by the 4ontract 7older to the 4orporate *adiation )ocal !oint @4*)!B who will present

    the findings to the !DO *adiation dvisory 4ommittee @*4B.

    ).(.) Contractors

    4ontractors importing( handling( storing and transporting radioactive materials and generators

    within the !DO 4oncession rea shall underta'e their own internal audits and inspections as

    part of their own quality assurance program and shall involve personnel with radiation e;pertise.

    0n addition( as regular inspection program shall be developed and conducted by site personnelon a more frequent basis. This shall be lead by the site radiation protection supervisor. The

    results of the audits and inspections shall be made available directly to the 4ontract 7older(

    4)D7 or !rincipal 4ontractor during third party audits. s a minimum the source owner shall

    conduct audits every si; months of each location where sources are handled and stored.

    ).(.* Su:'Contractors

    %ub-contractors importing( handling( storing and transporting radioactive materials and

    generators shall be subFect to an audit and inspection program established by the $ain

    4ontractor to !DO. fter the initial start-up audit( as a minimum the audits shall be conducted si;

    monthly at each interior location@sB and shall involve personnel with radiation e;pertise @i.e.

    *adiation !rotection %upervisor for that type of radioactive material and usageB. The sub-

    contractor shall establish a regular inspection program conducted by site personnel on a more

    frequent basis. This shall be lead by the site radiation protection supervisor. The $ain 4ontractorto !DO shall provide the inspection and audit findings to the relevant !DO personnel such as the

    #$42OD4 4ontract 7older or 4ompany %ite *epresentative( !DO 4)D7 or to the !DO !roFect

    $anager for review not less than si; monthly. The 4ontract 7olders and2or !roFect $anagers

    shall refer the audit reports to the 4*)! for peer review who will present the findings to the *4.

    The 4*)! will conduct periodic audit programs of contractors and sub-contractors and review

    findings with contract holders and proFect managers. The 4*)! can be requested to parta'e in

    audits and inspections. 'efer Table () Performance *onitorin+ ,hich outlines roles

    res#onsibilities and accountabilities ,ith res#ect to im#lementation and o#eration.

    !age , %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

    The controlled version of this 4$) Document resides online in 5ivelin'6. !rinted copies are UN4ONT*O55#D.

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    "a:le ) Performance 6onitoring ' R0SCI Chart

    *esponsible ccountable %upport 4onsult 0nform

    * % 4 0

    6onitoring 0ctivity Pro?ect

    6anagers

    Contract

    Holers

    Company Site

    Representatives

    Contractors Su:'Contractors C-DH CR-P 0sset 4 Pro?ect

    HSE "eam

    !re-approval of 4ontractors and

    %ub-4ontractors usingradioactive sources 9 generators

    % % * 9 * 9 %

    *adiation %afety udits of

    4ontractors using radioactive

    sources 9 generators

    * 9 * 9 % % 9 0 % 9 0 %

    *adiation %afety udits of %ub-

    4ontractors using radioactive

    sources 9 generators

    0 * 9 0 0 4

    Develop audit schedule and

    perform internal audits as per

    radiation safety manual

    0 * 9 * 9

    !rovide audit findings and

    learningPs to 4)D7 9 4*)! for

    lateral learnings

    * * 0 0 %

    *eview monthly T5D Dose

    reports0 0 * * 0

    4ompile findings to *4 % * 9

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    * Organisation & Responsi:ilities

    *.( Raiation 0visory Committee

    The *adiation dvisory 4ommittee @*4B defines and approves !DOPs policy and2orspecifications and procedures with respect to operational and administrative management ofradiation protection. The *4 is advised by the *adiation !rotection dvisor @*! H ane;ternal consultantB who will be the source of e;pertise for all matters concerning protectionagainst the ha

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    Petroleum Development Oman LLC*evision: +

    #ffective: , $ay +,,

    handling. The *!% shall be appointed by the *adiation !rotection dvisor and endorsed bythe company management( and agreed by the operator( that he understands his role.

    0n case of lac'ing 'nowledge2e;pertise or doubt *!% may directly call in the help2advice tothe contractors %enior *adiation !rotection %upervisor or appointed *adiation !rotection

    dvisor.The *!% shall be competent and fully conversant with:

    %upervising wor' involving ionising radiation.

    %etting up 4ontrolled or %upervised reas.

    $onitoring and sampling.

    Suality assurance of radiation protection.

    #nsuring compliance with procedures and regulations @e.g. pac'aging( transport(

    disposalB.

    #mergency provisions in the event of an incident

    *eporting and investigating incidents

    *ecord 'eeping requirements

    *., Senior Raiation Protection Supervisors 1Coastal2

    ny contractor or sub-contractor utilising radioactive materials in the !DO 4oncession areashall appoint a competent %enior *adiation !rotection %upervisor @%*!%B who shall be thefirst source of radiation e;pertise within the 4ontractor and2or %ub-4ontractor. The %enior*!% is responsible for:

    $onitoring compliance with this %pecification for the storage( transport and use of

    radioactive sources at all wor'sites.

    )ormulation and review of wor' procedures and contingency plans( where necessary( to

    ensure safe wor'ing practices and adequate emergency response.

    0mplementing a comprehensive system of movement control of all sources of ionising

    radiation imported into Oman( such that their location is 'nown at all times. Organising comprehensive medical screening @as defined in this %pecificationB of all

    wor'ers e;posed to ionising radiation( and maintenance of adequate medical records.

    Training and monitoring of all wor'ers e;posed to ionising radiation( to ensure that they

    perform their assigned wor' without endangering themselves( fellow wor'ers( membersof the public and the environment.

    0mplementing adequate dosimetry control( as defined in this %pecification( for the wor'

    being performed( and the maintenance of adequate records.

    *igorously reviewing dosimetry records

    0nvestigating and reporting all incidents involving over-e;posure to ionising radiation as

    defined in %ection ?. and the 4ontractors own radiation safety manual.

    0nvestigating and reporting all incidents involving the loss @even temporaryB of a source

    of ionising radiation.

    =hen lac'ing 'nowledge or information( the %*!% shall call upon the 4ompany appointed*adiation !rotection dvisor @*!B for advice and assistance.

    *.< Raiation Protection 0visers 1RP02 an4or Health Physicists

    ll 4ontractors or %ub-4ontractors utilising radioactive materials in the performance of theirwor' for !DO shall appoint @on staff( or under contractB one suitably qualified *adiation!rotection dviser @*!B or qualified 7ealth !hysicist to advise on matters relevant toradiation safety for their operations in Oman. The responsibility for compliance with this

    !age , %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

    The controlled version of this 4$) Document resides online in 5ivelin'6. !rinted copies are UN4ONT*O55#D.

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    Petroleum Development Oman LLC*evision: +

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    %pecification is not delegated to the *! and remains the responsibility of the operatingorganisation.

    The *! provides specialist advice and technical assistance to the organisation and shall betrained in radiation hygiene and radiation safety management. ppointed *!Ps shall be

    familiar with OmanPs radiation legislation and publications from 0nternational *egulatory&odies such as the 0# and the 04*!. The *! is responsible for:

    dvising management on the implementation of the companyPs radiation safety

    management system.

    $onitoring compliance with this %pecification for the storage( transport and use of

    radioactive sources at all wor'sites through planned inspections and audit programs.

    )ormulation of safe wor'ing procedures @local rulesB and contingency plans( where

    necessary( to ensure safe wor'ing practices and adequate emergency response.

    Training and monitoring of all wor'ers e;posed to ionising radiation( to ensure that they

    perform their assigned wor' without endangering themselves( fellow wor'ers and theenvironment

    !eer reviewing investigations of incidents involving over-e;posure to ionising radiation

    and incidents involving the loss @even temporaryB of a source of ionising radiation.

    The 4ontractor shall ensure that the *! or equivalent holds sufficient competency andformal training in all aspects of the wor' to meet the requirements of an *!.

    ll *!Ps and2or 7ealth !hysicists shall be formally trained in all aspects of the wor' and becertified under the *!+ assessment scheme @United ingdomB( or equivalent. 0f thenominated *! does not fulfil the above certification requirements( the 4ontractor shallsubmit a current resume for approval by the 4orporate *adiation )ocal !oint.

    The *! shall be available at all times through a call-out system( but the permanentpresence of the *! at the wor'site is not required.

    *.> Directors an Pro?ect 6anagersDirectors and !roFect $anagers are responsible for ensuring that the activities they controlare managed in accordance with the requirements of this %pecification. 0n the event thatcircumstances prevent compliance with this %pecification( they shall see' step-out approvalthrough the Document 4ustodian @refer to 4! ,++ 7%# $anagement %ystem $anual( !art +4hapter B.

    *.+ Corporate -unctional Discipline Heas

    4orporate )unctional Discipline 7eads are responsible for ensuring that the requirements ofthis %pecification are reflected in the documents for which they are responsible. ny 4)D7responsible for pre-approval of contractors or sub-contractors using ionising sources shall

    underta'e a pre-approval audit of the 7%# and radiation safety management system of thecontractor. The audit team shall contain personnel with radiation e;pertise to verifycompliance against the 5aw of the 5and( this %pecification and the contractors own safetymanagement system.

    *.@ Contract Holers

    4ontract 7olders are responsible for communicating this %pecification to 4ontractors( and forensuring that the requirements of this %pecification are adhered to within the scope of theircontracts. 4ontract 7olders shall appoint a 4ompany %ite *epresentative @4%*B who shallbe instructed and trained as required to monitor @inspect and auditB the activities of personnelinvolved in wor'ing with radioactive materials. 4ontract 7olders shall ensure that allradioactive materials have been removed and safely disposed upon the completion of the

    !age ,3 %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

    The controlled version of this 4$) Document resides online in 5ivelin'6. !rinted copies are UN4ONT*O55#D.

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    Petroleum Development Oman LLC*evision: +

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    , Raiation Safety 6anagement System

    Owners of radioactive sources for use for !DO activities shall develop a comprehensive radiationsafety management system that incorporates quality assurance and outlines:

    The Organisational chart and allocated responsibilities

    0mportation of radioactive materials or generators

    Transportation

    %torage @within $uscat and interior locationsB

    Training

    Operations and maintenance activities @including >ob 7%# !lans to be attached to the !t=B

    Dosimetry and 0nstrumentation

    Disposal

    #mergency *esponse.

    0n addition( the owner shall have documentation referred to as ccompanying DocumentsQ whichshall be provided with the apparatus intended for the users. The documentation is divided into fivecategories:

    ,. Description and technical characteristics of the apparatus and sources including

    suitable photos or drawings to allow identification of the main elements and parts of the

    apparatus

    e;planation of the operation( with reference to diagrams( indicating the sequence by which

    the source assembly is partially or completely outside of the e;posure container ore;posure head.

    %pecification of characteristics of sealed sources that can be used in the e;posure

    container

    *etention device of the source holder

    +. 4ertificates of the manufacturer to show compliance with the 0nternational standard e.g.0%O+A,A

    . 0nstructions for use including

    instructions for assembling the various parts of the apparatus in its various configurations

    instructions on the storage of the container

    instructions on the use of protective caps( plugs or similar devices on the apparatus while

    not in use( so as to avoid accidental penetration by foreign bodies

    3. 0nspection( maintenance and repair procedures including

    instructions on replacing the loaded source assembly and the pac'aging of the decayedsources for transport and disposal

    instructions on the procedure and frequency of maintenance operations

    instructions for chec'ing the apparatus for internal cleanliness( deformation( brea'age or

    wear

    0nstructions to be followed in the event of foreseeable accidents( with an indication of their

    probable causes.

    C. 0nstructions for disposal including

    when the sealed source and e;posure containers have reached the end of their wor'ing

    life( they shall be disposed of in a safe and proper way in accordance with the permit and

    !age ,1 %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    regulations for the control of radioactive materials( in particular for pac'aging andtransportation.

    !age ,/ %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    < Import

    The appropriate shipping certificate and permit as per the requirements of $D +3A2A/ shallaccompany all imports of radioactive materials.

    *ecords of the import of radioactive materials shall be 'ept. %uch records shall include:

    Owner @4ustodianB Name

    %ealed or unsealed

    *adioactive nuclide @substanceB and activity @&qB

    Type of radiation 9 half-life

    Transport 0nde; in designated transport shield

    !urpose of source

    Date of receipt

    %torage location

    %imilarly( the records of the importation of G-ray or Neutron generators shall be 'ept(

    including the following information:

    4ustodian company.

    #quipment reference code or type identification.

    Type of energy emitted @G-ray or NeutronB.

    $a;imum beam voltage @G-ray equipmentB.

    !urpose of generator.

    Date of receipt.

    %torage location.

    =here 0r ,A+ is used as a gamma source for NDT( it shall not e;ceed a strength of ,.,,T&q@ 4uriesB on site without written approval from the !DO 4orporate *adiation )ocal !oint.The 4ontract 7older or !roFect $anager shall submit a ris' assessment including additionalcontrols in the event of a step out request to utilise larger sources @ 4iB for heavy wallpiping or Fustify why alternate NDT techniques such as uto Ultrasonics cannot be utilised.

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    - have adequate security loc's preventing access to the source by unauthorisedpersons.

    - carry permanent labelling with the following information:- type of radioactive material @nuclideB.- activity @in &qB.

    -the word *D0O4T0# in clear and indelible print( in #nglish and rabic.

    - the Trefoil radiation sign in blac' on a yellow bac'ground.- the custodian"s name and contact telephone in Oman.- 4lass / Diamond( UN Number and Transport 0nde;- !roFectors shall have the source plate properly fi;ed to the container. @=ire

    attachment handle is not acceptableB

    ll sources and their shields shall be certified by an 0# 4ertificate of 4ompetentuthority( issued by the regulatory agency in its country of origin.

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    %ignature of person returning source.

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    > "ransport

    >.( 9eneral Re=uirements

    !DOPs 7%# %pecification H *oad Transport %!+ describes !DO"s minimum requirements formanaging road transport safety. 0t describes the minimum requirements for driver qualifications(vehicle standards( and >ourney management including the route of delivery. 0t is the consignorPsresponsibility to comply with the transportation rules.

    The following shall apply specifically to the transport of radioactive materials.

    >.) 6inisterial Decree Re=uirements for "ransport of Raioactive6aterials

    $D +3A2A/ requires:

    Transportation of radioactive materials into or out of the %ultanate of Oman shall be

    carried out in accordance with the 0# *egulations for the %afe Transport of *adioactive$aterials T%-*-, @+AB.

    Transportation of radioactive materials within the %ultanate of Oman is only allowed by

    land. Transport by post or internal flights are not allowed.

    ehicles used for the transport of radioactive materials within the %ultanate of Oman must

    obtain approval of the Directorate Eeneral of 4ivil Defence @*O!B before being used.

    The limitations for the transport of radioactive materials shall be as follows:

    - the ma;imum dose at any point on the outer surface of any vehicle loaded withradioactive materials shall be + m%v2h

    - the ma;imum dose rate at one metre distance from the outer surface of any vehiclecarrying radioactive materials shall be ., m%v2h

    - the ma;imum dose rate at the driverPs seat shall be +.C %v2h unless he is

    classified( ta'ing into account the time for the trip.

    -any radioactive pac'ages must be placed in tightly sealed containers( securely fi;edto the vehiclePs floor and padloc'ed. The container must be placed in a manner thatminimises the dose rate at the driverPs seat and should not be close to the rear ofthe vehicle.

    - no radioactive material shall be 'ept in the driverPs compartment of the vehicle.- nobody is allowed to travel with any radioactive consignment other than the driver

    and those authorised to do so.- agricultural products( livestoc'( flammable materials or e;plosives shall not be

    transported as part of a radioactive materials consignment.

    ehicles carrying radioactive materials shall be labelled on both sides and the rear

    indicating that radioactive materials are being carried. The labels shall be in rabic and#nglish. The labels shall be removed when the vehicle is not carrying radioactivematerials.

    #ach consignment of radioactive materials transported into Oman by air shall be

    accompanied by a %hipperPs 0T Dangerous Eoods certificate.

    ny movement of radioactive materials from $uscat to the !DO concession area by

    road shall be recorded using a Raioactive Source Consignment %ote 1See0ppeniA 02or a similarly !DO approved transport certificate and include a "remcar.

    *adioactive materials shall be transported with minimum stops en route to the

    destination. The vehicle shall stop only at places specified in the permission. #achdriver of a vehicle carrying radioactive materials shall not drive for more than 3 hourswithout a brea' and shall not wor' for more than , hours in a day.

    !age +, %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    >.* 0itional Re=uirements for "ransport of Raioactive Su:stances

    0n addition( the following requirements shall apply to the transport of radioactive substances:

    %uitably trained radiological wor'ers shall supervise any transport of radioactive material.

    Transport shields for radioactive sources shall comply with %ection C.,. Upon arrival( radioactive material shall remain in its transport container and the *!% or

    management notified. Only after receipt of a signed and completed consignment noteshall the radioactive material be transferred to the approved radiation store specified onthe consignment note.

    )or transportation by road the vehicle shall comply with %! + *oad Transport and the

    following:- have a dedicated fire resistant compartment for the transport of radioactive

    materials.- be fitted with:

    - warning notices front and rear indicating the type of radioactive materialcarried( its activity in &q( the name and contact telephone of the owner. Thesenotices shall be removable and only displayed when the vehicle is actually

    transporting radioactive material.- yellow and blac' Trefoil warning signs on all sides of the source container( and

    a written warning in #nglish and rabic.- two portable fire e;tinguishers of dry chemical powder type( two portable

    orange coloured flashlights and fireproof warning signs front and rear.- a tool 'it for emergency repairs to the vehicle and one spare tyre or two spare

    tyres if driving on graded roads.

    =hen transported by road the transport shield shall be contained within the dedicated

    compartment fi;ed to the structure of the vehicle. The compartment door shall beloc'ed. dditionally( the transport shield shall be physically secured to the compartmentby a latching mechanism( padloc' or chain. No other Dangerous Eoods( other than4lass / radioactive materials( shall be transported in the source storage compartment.!ersonnel shall not be transported in the compartment.

    ll vehicles transporting radioactive materials shall be occupied by at least two people(at least one of whom shall be a trained radiological wor'er. The dose rate in the driver

    or passenger compartment shall not e;ceed +.C %v2h. Only radiological wor'ers shall

    be permitted to enter into areas on the vehicle e;ceeding /.C %v2h. No persons( other

    then those designated at dispatch of the vehicle( may be transported.

    ehicles containing radioactive sources should never be left unattended outside of

    designated wor'places where the source is to be utilised. =hen stationary( vehiclescontaining radioactive sources shall be separated from other vehicles by a minimumdistance of + metres.

    ll drivers shall undergo( as a minimum( radiation awareness training for the li'ely

    emergency scenarios that may occur en route. These include road traffic accidents( firein the vehicle and they shall be familiar with the Tremcard( 4ompany #mergency contact

    numbers and the doses li'ely received whilst transporting the sources. calibrated dose meter capable of measuring accurately to less than +.C %v2h shall be

    carried with the vehicle when transporting sources.

    ll NDT proFectors shall be transported in a specially designed bo; that protect from

    vibration and impact and general wear and tear during transport and loading2unloadinginto the stores.

    La:elling

    ll pac'ages containing radioactive materials must be labelled with one of the three types of labelsdescribed and illustrated below. minimum of two labels are required for a pac'age. They should beattached on opposite sides of the pac'age for better indication. The term Transport 0nde; @T0B of a

    !age ++ %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    pac'age is used to e;press the e;ternal radiation ha

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    + Storage

    +.( 6inisterial Decree 16D ),B4B+2 Re=uirements for Storage ofRaioactive 6aterials

    !ermanent storage of radioactive materials shall only be permitted at places approved by theDirectorate Eeneral of 4ivil Defence @*oyal Oman !oliceB( $#4 and the 4orporate*adiation )ocal !oint. $#4 approval must be obtained for any proposed temporarylocations for storing radioactive material for longer than +3 hours such as !DO #!4!roFects.

    %torage locations shall comply with the following:

    &e away from populated areas.

    &e fenced within the yard of the main contractor

    ll radioactive materials shall be adequately shielded( labelled and 'ept loc'ed and

    secure.

    The design of the facility shall be waterproof and comply with the $#4 drawings inppendi; &.

    4ontractors and sub-contractors shall not be permitted to store their radioactive sources

    within the store or pit of another contractor 2 sub-contractor unless the pits areseparated by a bloc' wall and have separate access.

    *adioactive materials used for well logging must remain in their shield in an e;clusive

    store or dog 'ennelQ and shall be located in a designated area in clear view of the drilleror logging engineer until being loaded. The container shall be loc'ed( labelled andcordoned with barrier tape. dditional precautions such as securing to a pipe wrac'ingshould be considered. !referably the sources will be stored in a dedicated sea containerwhilst on-site. !ermanent stores shall comply with %ection /.+.

    +.) 0itional Re=uirements for the Storage of Raioactive Sources!ermanent storage of radioactive sources shall comply with the following:

    =hen not being used( radioactive materials shall be 'ept in approved designed stores(

    surrounded by a security fence @ref. ppendi; &B( with the following characteristics:- *e-enforced bloc' or concrete walls and roof(- !rotection of the contents from the effects of the weather.- *esistance to fire sufficient to minimise the loss of shielding( ta'ing into account the

    combustibility of the surroundings and the li'ely temperatures reached in the eventof a fire.

    - entilation to prevent accumulation of gases or vapours.- %torage facility and security fence individually secured by a loc'. The storage

    facility loc' shall be operable from the inside. %torage facility and security fence

    shall be loc'ed if no one is present.- warning signs( including the Trefoil radioactive warning and the words DNE#* -

    *D0O4T0# $T#*05 written in clear and indelible #nglish and rabic print(e;hibited on all sides of the security fence and the secured facility.

    - #mergency contact details of the source owner and nominated person @*!% 2 %04B

    - the level of radiation at the e;terior of the store shall not e;ceed +.C %v when fully

    loaded with all assigned radioactive sources.

    - at the perimeter of the security fence the radiation level shall not e;ceed , %v.

    .ote) If the store is a buildin+ ,ithin a secured area then a se#arate securit/ fence is notre0uired

    !age +3 %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    #very radioactive source storage facility shall have a nominated supervisor. This person

    shall be a radiological wor'er and shall be responsible for managing the storage facility(includingaccess control( and for trac'ing the movements of sources into and out of thestore. The storage facility supervisor shall also be responsible for 'eeping a log of allsources normally stored at the facility( including the source type and serial number.

    *adioactive source storage facilities shall be dedicated to the designated purpose( and

    shall contain only the sources( their shields( and any handling tools and ancillaryequipment( utilised in the movement or maintenance of the sources. )urniture shall belimited to a bare minimum. t no time shall any flammables( combustibles( e;plosives orother ha

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    to prevent unauthorised use and shall not be stored with other radiography equipment. Onlyauthorised radiological wor'ers shall 'eep 'eys.

    The radiation safety manual shall contain the drawings and maintenance procedures for G-ray equipment for both crawlers and e;ternal G-ray equipment as used by the contractor.

    =here radiography is not conducted in a shielded enclosure( cable lengths shall be no lessthan + m for ;-ray generators up to ' and longer for equipment with higher tubepotentials. ll metallic items including casings( interconnecting cables( power supply unit@transformer2generatorB( G-ray control equipment( tube assembly( warning signals( othersafety devices and the irradiated obFect are bonded together and grounded @connected toearthB. dvice on electrical matters( as well as inspection and testing( should be provided bya qualified e;pert.

    The 4ontrol !anel shall be fitted with the following:

    label indicating that ha

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    @ $se

    @.( 9eneral Re=uirements

    The following requirements shall apply when using ionising radiation:

    No practice shall be adopted unless its introduction produces a positive net benefit.

    ll e;posures shall be 'ept s 5ow s *easonably !racticable @5*!B( economic and

    social factors being ta'en into account.

    *adiation wor' shall have a minimum of +3 hours notice to enable sufficient time to plan

    the wor' and conduct a site visit @#mergency wor' shall give sufficient time for planningB

    0ndividuals below the age of ,? years shall not be involved in radiological wor'.

    ll operations involving the use of ionising radiation shall be carried out by a minimum of

    two qualified radiological wor'ers. *adiography crews @*T and G-rayB shall consist oftwo %NT level 00 radiographers( one of which must be competent *adiation !rotection%upervisor appointed by the *! and 4ontractor management. n %NT 5evel 0radiographer may assist the 5evel 00 provided the latter has *!% qualifications.

    ny wor' utilising radioactive sources carried out on behalf of !DO( or within !DO"s4oncession rea shall be carried out under an approved !ermit to =or' %ystem @ref.!*-,,/+( !ermit to =or' %ystem !rocedure $anualB.

    The !t= shall include:

    Details and planning of the wor' @pre-inspection is recommendedB

    4ompleted >ob 7%# !lan i.e. a written ris' assessment

    *adiation protection arrangements i.e. controls

    #mergency and recovery provisions in the event of an incident

    The *adiography 4ertificate for NDT wor' @ref: ppendi; 4B

    s'etch of the 4ontrolled rea is required for NDT wor'

    0n addition( a number of simple methods are to be employed and shall be covered in general

    radiation protection training and site specific briefs to employees as follows: 0n the case of G-ray radiography( using the minimum appropriate ' and m settings

    $inimising time spent in the vicinity of the source of radiation or in areas where

    radiation levels are higher

    $a;imising istance from the source

    Use of shieling where reasonably practicable.

    Dose sharing is not to be used as a primary means of restricting e;posure to individuals.

    *ather( priority is to be given to improving engineering controls and other means ofrestricting e;posure( including changing the methods of wor'.

    !DO and 4ontractors performing well logging using radioactive materials or generators shallcomply with 7%# %pecification %!-,+,?( =ell #ngineering %pecification for *adioactive%ources.

    ll site radiography( including operations with pipeline crawler equipment( shall be carried outin accordance with the 0# *adiation !rotection and %afety in 0ndustrial *adiography(%afety *eport %eries No. ,( 0#( ienna @,AAAB

    ll medical uses of ionising radiation shall be carried out in accordance with the $edical andDental Euidance Note ++ published by the 0nstitute of !hysics and #ngineering in$edicine. Note: The use of ;-ray for medical images shall be e;empted from the !t= andrequirement and providing two qualified radiological wor'ers.

    !age +? %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    @.) Occupational Dose Limits

    0onising radiation doses for individuals shall not e;ceed the levels stipulated in Table ,.

    Table 1: Dose Limits

    4lassification Dose 5imit@m%v2yrB

    *easoning

    $a;imum annual effective dose receivedfrom occupational e;posure as aradiological wor'er @$inistry of$anpowerB

    @$inistry of #nv. 9 4limate ffairsB

    +

    ,

    5imits %tochastic effects

    *adiological wor'ers are defined as anyperson who through their occupation maybe e;posed to an annual effective dose

    e;ceeding + m%v2year

    + !revents continuous e;posure of anindividual close to the effective dose

    limit

    @)or pregnant radiological wor'ersB$a;imum equivalent dose received fromoccupational e;posure during entire termof pregnancy

    , !revents continuous e;posure to thefoetus close to the effective dose

    limit

    $embers of the !ublic or Non 4lassified=or'ers

    , *educes e;posures to 5*!

    Notes:

    ,. The dose rate received by a radiological wor'er shall be measured using monitoringdevices suitable for the type of radiation being monitored.

    Table 2: Dose Action Limits

    4lassification Dose 5imit@m%vB

    ction

    nnual effective dose received fromoccupational e;posure as a radiologicalwor'er

    C m%v2yr #mployer underta'es internalinvestigation @auditable by !DO(

    4ontractor or *egulatorB

    Three @B monthly average effective dosereceived from occupational e;posure as aradiological wor'er as measured fromT5D or )ilm badge

    m%v 2 months

    $anagers shall be notified of dosereceived higher than normal

    $onthly effective dose received fromoccupational e;posure as a radiologicalwor'er as measured from T5D or )ilmbadge

    , m%v2mth $anagers shall be notified of dosereceived higher than normal

    ny radiological wor'er who receives a dose e;ceeding C m%v shall be investigated by the%enior *!% and the reports available for audit by !DO( the !rincipal 4ontractor or*egulator. These limits are set to prompt managers to ensure the practice of dose restrictionis in line with the s 5ow as *easonably !racticable @5*!B principle.

    !age +A %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    @.* Dosimetric Control

    During wor'( all radiological wor'ers shall continuously wear a personal cumulativedosimetry @T5D or )ilmB badge sensitive to the type of ionising radiation to which they aree;posed. %uch badges shall be controlled by a recognised and competent dosimetry

    service( who shall provide the employer with reports on the dose received during the periodof use of the badge and the cumulative annual and lifetime dose of the wearer.

    !ersonal cumulative dosimetry badges shall be analysed on a fi;ed schedule as follows:

    $onthly where the wor' environment is shown to e;pose wor'ers to an average effective

    dose in e;cess of + m%v per year.

    Suarterly where the wor' environment is shown to e;pose wor'ers to an average

    effective dose below + m%v per year.

    )or any wor' where the cumulative e;posure is li'ely to e;ceed , %v in one day(

    radiological wor'ers conducting the wor' shall carry( in addition to the cumulative dosimeterbadge @T5D or )ilmB( a personal cumulative audible alarming dose rate meter( which shall be

    controlled and reset after each wor' period. The readings for each day shall be recordedand 'ept on file.

    @., 8or5 0rea Classification an Entry Restriction

    Controlle 0reas

    reas where the instantaneous effective dose rate may e;ceed /.C%v2h shall be designated

    as 4ontrolled reas. ccess to these areas shall be controlled and they shall be clearlymar'ed( cordoned off with the Trefoil radioactive warning and a written warning in #nglishand rabic. Only trained classified radiation wor'ers shall be allowed access to these areasunless the wor' is assessed and can be performed safely under a written >ob 7%# planincorporating a safe system of wor' @*is' assessmentB.

    )or e;ample( during the period when well logging sources are removed from their shields(until the logging tool is downhole( access to the drill floor shall be restricted to the loggingcrew( engineer and Driller or ssistant Driller. ccess below the drill floor shall be strictlyrestricted with appropriate signage.

    *adiographers shall calculate the 4ontrolled rea distance prior to the commencement ofwor' and shall incorporate the 4ordon-off distance into the *adiography 4ertificate.*adiographers shall always retreat beyond the 4ontrolled rea to a safe distance where thedoses are 5*!. Under no circumstances shall a radiographer be permitted to stand in the4ontrolled rea.

    Supervise 0reas

    reas where the instantaneous effective dose rate may e;ceed +.C %v2h( but not e;ceed

    /.C %v2h( shall be designated as %upervised reas. #ntry into these reas by Non-4lassified wor'ers shall only be permitted under a written >ob 7%# !lan incorporating a safesystem of wor' @*is' ssessmentB.

    0nformation( maps and plans indicating locations of usage and storage of radioactivematerials shall be provided to the *oyal Oman !olice @Directorate of 4ivil DefenceB and otherconcerned authorities in accordance with $D +3A2A/.

    @.< Instruments

    @.>.( Porta:le Survey 6eters

    !age %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    !ortable e;posure rate meters shall be provided suitable for the type of radiation used. Theyshall be light( robust and capable of being used in all weather under arduous conditions.The e;posure rate meter can be scaled in millirem @m*B per hour or microsieverts @Y%vB ormillisieverts @m%vB per hour( however preference is given to %0 units.

    %pecial monitors are required to detect neutrons. ll slow them down in a sphere ofpolyethylene with generally a &oron Triflouride proportional counter in the centre. Ordinarydetectors that are suitable for G-rays( gamma rays and even beta particles must not be usedto detect neutrons. 0n the event of an incident involving a neutron emitting source( to enablecalculation of the permitted e;posure time( a neutron survey meter shall accompany allneutron emitters e.g.m2&e-+3,. Note: not all meters are intrinsically safe and may require a7ot =or' permit in facilities or wor'ing around hydrocarbons. 4alibration of instruments shallbe conducted by a qualified person every ,+ months and include a test certificate from thedate of the test.

    The employer is responsible for ensuring that sufficient numbers of meters are provided forthe wor' to enable calibration( servicing and repair to meters and increased wor' load.

    @.>.) 0ui:le 0larms 1/leepers2

    udible alarms are small light weight( designed to be carried in the top poc'et of a coverall.They must be 'ept switched on during the entire period that the wearer may be e;posed tohigh output sources. These shall be able to indicate the presence of radiation by an audiblesignal immediate warning of a high dose rate. They shall also be capable or emitting arecogni "raining

    $D +3A2A/ requires that all classified radiological wor'ers and drivers of radioactive sourcesmust be suitably trained and this training recorded e.g. in the 7%# !assport. ccordingly( allradiological wor'ers and drivers shall be adequately trained for the Fob to which they areassigned and include refresher training as a minimum every three years.

    %pecific training to a recognised standard by the *! or equivalent shall be given to allpersons whose wor' involves the handling of unshielded sources and the operation of G-rayor neutron generators.

    *adiological wor'ers shall be fully acquainted with the requirements of this %pecification andshould be fully aware of the potential ha

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    of radiation wor'ers should follow the same general principles of occupational medicine asapplied to other groups of wor'ers.

    0n most cases the actual e;posure to 0onising *adiation is small that it will have littleinfluence on decisions regarding medical suitability for employment. The emphasis has

    moved to encompass the fitness to wor' aspect of the medical assessment.The requirements for adequate medical surveillance comprise of:

    pre-employment medical e;amination before first being designated as a classified

    radiological wor'er

    complete occupational history( including all previous e;posures to ionising radiation

    and a review of the previous e;posure @T5D2)ilmB records

    n assessment whether the radiation is electrically generated or from sealed or

    unsealed radioactive materials and Type @alpha2beta2gamma2neutrons2G-raysB

    %pecial medical surveillance of an employee when a relevant dose limit has been

    e;ceeded @based on advice from the *!B

    ny test specifically recommended for radiological wor'ers by !DO"s 4hief $edical

    Officer or 4ompany approved physician

    review of health after cessation of wor' where this is necessary to safeguard the

    health of the individual

    ll radiological wor'ers shall undergo an annual medical e;amination at the employerse;pense in a !DO approved clinic. The employer shall provide the e;amining medicalpractitioner with the wor'er"s occupational dose history since the previous medicale;amination. =omen of child reproductive capacity should receive advice about the ris's tothe foetus and nursing infant arising from e;posure to ionising radiation and the need tonotify the employer in writing and without delay if they become pregnant.

    4hest G-rays should not be carried out as part of the initial e;amination or periodic reviewsunless there is a clinical reason for doing so. )ull blood count tests need only be conducted if

    there is a clinical indication or as required in %!-,+. %hould an employee receive a dosefrom ;-rays( gamma rays or neutrons e;ceeding +C m%v blood testing is mandatory.)urther advice may be sought from Euidance for ppointed Doctors. The 0onising *adiation*egulations ,AAA 7ealth and %afety #;ecutive United ingdom @*evised +B

    @.@ Design an $se of Shiele Enclosures 1-iAe -acilities2

    )or permanent radiography locations e.g. OD42#$4 wor'shops and maFor proFects with sitespool fabrication( it is strongly recommended that a purpose built enclosure be constructedto enable radiography @gamma and ;-rayB be performed safely outside of the contractorswor'shop without interruption. properly designed and operated shielded enclosure will help'eep radiation e;posures of radiographers below C m%v @or lessB per year. 0n other caseslocal shielding is to be used as far as reasonably practicable.

    The general design is similar for all enclosures( although different characteristics areincorporated depending on whether the enclosure is to be suitable for G-ray( accelerators orgamma radiation equipment. Designs to shielded enclosures require guidance in terms ofanticipated doses( dose rates and e;posure times. Design considerations for theseinstallations include: @aB shielding considerations( @bB personnel access door interloc's( @cBfi;ed radiation monitors( @dB warning signs and symbols and @eB emergency stops.

    !age + %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    B Disposal

    =aste shall be classified as radioactive waste material if its activity is higher than , &q2g.

    *adioactive waste differs from all other types of waste. 0ts radioactivity decreases only with

    time( and its radioactive properties cannot be altered or destroyed by any physical( chemicalor biological treatment.

    %ealed sources and tracer applications account for most of the industrial use of radioactivesubstances. There is almost no waste disposal required in the use of sealed sources( e;ceptfor disposal of the source upon decay of its radioactivity to levels at which it can no longer beused. Damage to the sealed source may result in radioactive waste in the form ofcontaminated equipment( pac'ing( clothing and other accessories.

    *adioactive waste material shall be classified as ha

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    Petroleum Development Oman LLC*evision: +

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    (7. Emergency Response

    The following occurrences shall be reported in accordance with 7%#2A/2, 0ncident

    Notification( 0nvestigation( *eporting and )ollow-Upto the !roFect $anager( 4ontract 7olderor $ain 4ontractor in the case of sub-contractors.

    ny loss of radioactive material @including temporary loss or stuc' logging toolsB.

    5oss or theft of a source of ionising radiation

    ehicular accident involving transport of sources of ionising radiation

    ccidental separation of a chemical source from its shielding

    !hysical damage to a sealed source( causing lea'age of radioactive material

    4ontamination of the environment with radioactive material

    ny e;posures greater than the Dose or ction 5imits listed under %ection ?..

    The $#4 shall be notified of the following occurrences:

    &efore the import and use of radioactive materials( or any other relevant wor' in the

    %ultanate.

    0f there is any release of radioactive materials in e;cess of that specified in the permit.

    0f any person or wor'er receives a radiation dose greater than the level indicated in the

    permit( $D+3A2A/ or the $inistry of $anpower Occupational 7ealth and %afety*egulations in the !rivate %ector.

    )ormal 4ontingency !lans shall be prepared to respond to any emergency which might arisefrom the storage and handling radioactive materials including incidents outlined above.=ritten emergency procedures shall be documented in the *adiation %afety $anual of thecontractor and shall align with !DO"s #mergency *esponse Documents.

    ll users of ionising radiation shall have available at all times the necessary means tocontact their *!( %enior *!% and !DO local emergency services when operating outsidetheir normal base of operations.

    4ontractors shall have planned emergency moc' drills to demonstrate that radiologicalwor'ers and others such as the *O!( first aid responders or fire and emergency crews havesufficient e;perience and confidence to handle emergencies.

    !age 3 %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    ((. References

    ,,., $inistry of #nvironment and 4limate ffairs $D+3A2A/ and %upplement +

    ,,.+ $inistry of $anpower Occupational 7ealth and %afety *egulations in the !rivate %ector

    ,,. 0nternational tomic #nergy uthority @0#B %afety %eries T%-*-, *egulations for the %afeTransportation of *adioactive $aterials +A

    ,,.3 %hell %afety and 7ealth 4ommittee 0onising *adiation %afety EuideQ November ,AA

    ,,.C !DO %!,+,? - =ell #ngineering %pecification for *adioactive %ources November +/

    ,,.1 !DO !*,/,+ - !ermit to =or' %ystem $anual *evision 1., December +?

    ,,./ !DO !*,3,? H 7%# !rocedure 0ncident Notification( nalysis( *eporting and )ollow-up*evision +., >uly +A

    ,,.? Euidance for ppointed Doctors. The 0onising *adiation *egulations ,AAA 7ealth and %afety#;ecutive United ingdom @*evised +B

    !age C %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    Petroleum Development Oman LLC*evision: +

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    0ppeniA 0 Raioactive Source Consignment %ote

    To be completed when transporting a radioactive source from $uscat to the interior location andupon return to $uscat for interim storage and disposal.

    Section 0 Source Details

    To be completed by 4onsignor

    4ompany Name:

    ddress:

    #mergency 4ontact Numbers:

    !roper %hipping Name:

    4lass Number@sB UN No.

    Name of 0sotope

    Type of source: %ealed @ B Unsealed @ B

    ctivity @E&q or 4iB

    %erial Number:

    !ac'age 4ategory Transport 0nde;:

    Section / "ransportation Details

    4ompleted by 4onsignor

    4onsignor name:

    Destination including stops:

    Transport 4ontractor Name:

    4ontact Numbers @mobileB:

    0 hereby certify that the pac'age containing radioactive material has been properly pac'ed( mar'edand labelled( and as such is in conformity with the relevant *egulations for the %afe Transport of*adioactive $aterials( including provision of a T*#$4*D.

    4onsignor %ignature: Date:

    Section C

    4ompleted by 4onsignee @*eceiverB

    4onsignee Name:

    Designation 2 *ef. 0nd.

    0 hereby certify that the consignment containing radioactive material@sB has been inspected andmonitored to verify it contains the source and is without damage.

    %ignature: Date:

    !age 1 %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    Petroleum Development Oman LLC*evision: +

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    Notes:

    This form is an e;ample of the Transport Documents required for shipping and transportingDangerous Eoods in Oman by *oad in accordance with the 0# *egulations for the %afe Transport

    of *adioactive $aterials. 4ontractors transporting source shall establish their own forms which shallbe completed in triplicate as follows:

    ,stcopy @completed and 'ept by consignorB

    +ndcopy @completed and 'ept by receiverB

    rdcopy @returned to consignor by receiverB

    The 4onsignor and 4onsignee shall be radiological wor'ers

    Transporters shall be licensed by the *O! for carrying radioactive materials

    ll vehicles carrying radioactive materials shall be occupied by at least two people( one of whom

    shall be a radiological wor'er

    !age / %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    Petroleum Development Oman LLC*evision: +

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    0ppeniA / Storage -acility Design

    !age ? %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    !age A %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    Petroleum Development Oman LLC*evision: +

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    !age 3 %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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    Petroleum Development Oman LLC*evision: +

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    0ppeniA C Raiography Supplementary Certificate

    !age 3, %!-,+/ : %pecification for 0onising *adiation !rinted ,12,2+,3

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