Safety

SHV Gas SHV Gas N.V. Siriusdreef 70-72 2132 WT Hoofdorp The Netherlands Tel: 00 31 23 5555700 Fax: 00 31 23 5555701

SHV GAS SAFETY STANDARDS

PART 1 : OPERATIONAL REQUIREMENTS December 2006

Signed by Ken Wilson On behalf of SHV Gas Safety Committee

SHV Gas Safety Standards, Part 1, Version 2, December 2006

SHVG_SS_P1_V 2 12.06 Page 2 of 14

Part 1 – OPERATIONAL REQUIREMENTS

CONTENTS

1 MANAGEMENT RESPONSIBILITY 2 PRODUCT QUALITY 2.1 SHIP IMPORTS

2.2 ROAD TANKER, PIPELINE AND RAIL CAR TRANSFERS

3 INTERNAL TRANSPORT 3.1 FORK LIFT TRUCKS 4 OPERATING INSTRUCTIONS 5 SAFE WORKING PROCEDURES 5.1 PERMITS-TO-WORK

5.2 CONTRACTORS 5.3 PERSONAL PROTECTIVE EQUIPMENT 5.4 SECURITY

6 COMMISSIONING AND DE-COMMISSIONING 6.1 COMMISSIONING

6.2 DECOMMISSIONING

7 INTERNAL/EXTERNAL EMERGENCY PLAN AND FIRE PRECUATIONS

8 RECORD KEEPING 9 PURCHASING OF GOODS AND SERVICES 10 INSPECTION/PERIODIC EXAMINATION 11 MAINTENANCE 12 ACCIDENT REPORTING/INVESTIGATION 13 INSPECTION AND AUDITING Annex A – Specification of LPG (extract from ISO 9162)



1. Management Responsibility 1.1 In each company, the General Manager has overall

responsibility for health and safety and (s)he shall ensure that individual terminal or plant managers and supervisors are aware of their responsibilities according to the Company Health and Safety Procedures and Rules. Details of individual’s formal responsibilities shall be given, received and acknowledged in writing i.e. job description

1.2 In each country, the General Manager, shall appoint a person with day-to day responsibility of managing health and safety.

1.3 Each company shall have an organization chart that clearly displays the management structure.

1.4 A local safety policy which details requirements for at least the following:

Compliance with legislation Maintenance procedures and program Permit-to-Work system Training and supervision, including the use of safety committees and induction of new employees

Emergency procedures Accident investigation and reporting Determination and identification of hazardous areas Issue of personal protective equipment General housekeeping Auditing and inspection program Management of change Hazard and Risk Analysis

Details of the minimum SHV Gas requirement in respect of the above are contained within the following sections. 2. Product Quality Product Quality is essential to ensure not only that customers receive a product of a consistent quality but also to avoid problems with and deterioration of company and/or customers’ equipment 2.1 SHIP IMPORTS 2.1.1 Refrigerated and pressurized ship imports shall be supplied

with a load port analysis that confirms compliance with the specification as detailed in the contract of supply.



2.1.2 Either prior to sailing at loading port or prior to discharge, the ship tanks shall be sampled and analyzed either locally or independently to confirm that the product conforms to the specification as detailed in the contract of supply. As a minimum this specification should be ISO: 9162 or an appropriate national standard. (See Annex A for a typical specification)

2.1.3 Samples should be taken from the individual ship tanks or

a composite sample taken prior to sailing at the loading port or prior to discharge at the unloading port.

2.1.4 Discharge shall not take place until these tests have been

completed and the results are satisfactory. 2.2 ROAD TANKER, PIPELINE AND RAIL CAR TRANSFERS 2.2.1 LPG delivered by road tanker, rail car or pipeline shall be

tested locally or near the source for the following : Temperature Vapour pressure Specific gravity Residue Free Water Hydrogen Sulphide (Lead Acetate Paper or Doctor test) Ammonia

2.2.2 The Terminal or Plant Manager shall determine and specify the following:-

Frequency of Tests Person responsible for conducting the tests Test methods and sampling instructions Action to be taken in the event of any departure from normal quality standards

2.2.3 A record of test results shall be maintained or readily available and a corrective action procedure initiated with the Supplier in case of any departure from normal quality standards.

2.2.4 The requirements of 2.2.1 and 2.2.2 may be relaxed if the source of supply is controlled and the transfer is by dedicated road or rail tankers.

2.2.5 Odorants and antifreeze agents, if appropriate, shall be added prior to distribution in accordance with national requirements. For safety reasons, all LPG distributed to customers should have a characteristic (distinctive and unpleasant) odour at 20% of the lower flammability limit



Note 1: If ethyl mercaptan is added as odorant, the concentration of ethyl mercaptan added to meet this odor requirement should not be less than 14cm3/m3

Note 2: The addition of up to 0.125% (v/v) of methanol may be added to propane as an antifreeze.

3. Internal Transport 3.1 FORKLIFT TRUCK 3.1.1 In Zone 2 hazardous areas only diesel powered forklift

trucks with flame arrestors and suitably modified electrics shall be used (no batteries, no starter,). As a consequence fork lift trucks shall be started or repaired either in non classified areas, or under a permit to work system.

3.1.2 In addition, in Zone 1 hazardous areas only flameproof forklift trucks shall be used.

3.1.3 It shall not be permitted to alter the design and more specifically the design of any special flameproof equipment.

3.1.4 Fork lift trucks shall be selected for the specific task they are to perform and in particular be capable of lifting the maximum load.

N.B. In Europe the requirements for forklift trucks in hazardous areas shall comply with ATEX. Industry guidance on ATEX is available from the AEGPL

4. Operating Instructions 4.1 Notices shall be clearly displayed at the entrance to the site

and shall contain the following information. Rules of access and circulation of persons and vehicles. Precautions to be taken with naked flames and electronic equipment as detailed in 4.2

Actions to be taken in the event of an incident or when the alarm is raised.

4.2 It shall be forbidden to smoke, carry or use mobile phones, lighters, cameras, video cameras, portable electronic devices or use any equipment on-site which could be a potential source of ignition In addition, suitable Personal Protective Equipment shall be provided as detailed in 5.3.1 and consideration given to the potential build up of static electricity i.e. outer clothing shall mainly comprised of cotton.

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4.3 Every person entering the site shall receive general safety instructions and the action to be taken in the event of an emergency. All employees shall receive in addition the operating instructions necessary to carry out his/her job. These instructions shall be given, received and acknowledged in writing.

4.4 The general safety instructions shall contain at the least the following information:

Measure to be taken for personal protections of the workforce, visitors and contractors.


4.5 The operating instruction shall contain at least the following information:

Prior verification, tasks and checks for every work station.

These checks shall cover both normal functioning as well as abnormal operation


5. Safe Working Procedures Safe working procedures shall be developed and shall include the following: 5.1 PERMIT TO WORK 5.1.1 A formal written system of authorization (Permit-to-Work)

shall be implemented to control work which may be potentially hazardous including hot work, electrical and mechanical isolation, working in hazardous areas, working in confined spaces etc and shall detail the following:

The Permit-To-Work shall contain a description of the work to be undertaken and safety precautions to be put in place before the work commences.

The Terminal or Plant Manager or deputy shall ensure that proper training and adequate instruction have been given in relation to the work to be carried out and any specific safety precautions.

The Terminal or Plant Manager or deputy shall issue and sign the Permit-To-Work.

The person carrying out the work, whether employee or contractor, shall countersign the Permit-To-Work to acknowledge receipt, and in doing so agree to carry out the work as detailed.



The Terminal or Plant Manager or deputy shall confirm that the relevant precautions have been taken and it is safe to commence the work.

The person carrying out the work shall retain the top copy of the Permit-to-Work. A copy shall be retained by the Terminal or Plant Manager or deputy.

When the work is complete, the person who has carried out the work shall sign the Permit-To-Work to confirm that work has been satisfactory carried out and that it is safe to return the plant to normal operation.

The Terminal or Plant Manager or deputy shall cancel the Permit-To-Work when he is satisfied that it is safe to return the plant to normal operation.

5.1.2 The Permit-To-Work system shall be applied to all individual contractors unfamiliar with the site and undertaking high risk activities and for non routine high risk activities undertaken by employees and contractors.

5.2 CONTRACTORS 5.2.1 Whilst working on Company premises contractors shall

comply with any Company Health and Safety Procedures and Safety Rules together with any specific local requirements. In addition the Terminal or Plant Manager or his/her deputy shall:

Ensure the contractor is professionally qualified to carry out the required work and can provide professionally qualified supervision for his/her employees on the site.

Provide adequate training regarding procedures and precautions to be followed.

Identify to the contractor the area of the site in which he is to work.

Inform the contractor about site arrangements including safe access for his vehicles, welfare facilities, hours of work, emergency procedures etc.

Inform the contractor about the site’s Permit-To-Work system and about the types of work and areas of the site in which it applies

5.2.2 An approved list of contractors shall be maintained and

periodically reviewed by the Technical and Plant Manager.



5.3 PERSONAL PROTECTIVE EQUIPMENT 5.3.1 Personal protective equipment (PPE) means all equipment

and clothing which is intended to worn or held by a person at work and which provides protection against one or more risks to health and safety. Protective clothing includes for example overalls, gloves, safety footwear, safety helmets and high visibility jackets. Protective equipment could include eye protectors, safety harnesses, respirators and life jackets. The Terminal or Plant Manager (or Deputy) shall ensure that PPE is:

Issued to all staff and visitors where necessary and a record of its issue shall be maintained

Worn by staff, contractors and visitors in the designated areas

5.4 SECURITY / ACCESS CONTROL 5.4.1 A procedure shall be in place to cover security

arrangements of all industrial LPG and it shall ensure that: 5.4.2 High levels of security are maintained at all time. Actual

arrangements shall depend on the perceived risk and level of alert in place at the time.

5.4.3 Allow only employees and other authorized personnel on site for the necessary undertaking of their work activities even then various access restrictions may apply

5.4.4 All contractors entering the site are properly screened 5.4.5 Ensure that visitors to Company premises receive the same

protection for their health and safety as employees and request them to observe the location safety rules.

5.4.6 Details of all visitors shall be recorded. In addition, visitors may be invited to submit to baggage/ vehicle searches.

5.4.7 Unauthorized visitors, including employee’s relatives or friends, shall not be allowed access beyond normal public access areas.

6. Commissioning and De-Commissioning 6.1 COMMISSIONING 6.1.1 An appropriate procedure shall be written which specifies

that water, nitrogen, or carbon dioxide shall be used to check the installation before LPG is introduced for the first time or after maintenance work. In order to avoid a flammable atmosphere, any other fluid or compressed gas, such as oxygen, must not be used.



6.1.2 If nitrogen is used for purging, the oxygen content shall be checked to confirm. It is below 5% by volume and if carbon dioxide is used for the purging the oxygen content shall be less than 9% by volume

6.1.3 For commissioning, written procedures and a Permit-To-Work shall be used.

6.2 DECOMMISSIONING 6.2.1 Before the installation is de-commissioned and purged free

of LPG, it shall be isolated either by removing pieces of piping or by fitting blanks or spades in the pipes. The closure of shut off valves is not a suitable means of isolation. In addition, if appropriate, the equipment shall be electrically isolated by suitable lock-out and/or tag out arrangements

6.2.2 For decommissioning, a detailed written procedure (with appropriate sketches etc) and a Permit-To-Work shall be used. The procedure as a minimum shall contain the requirement of 6.2.3 to 6.2.6

6.2.3 Emptying and purging Before opening, all LPG vessels shall be: Emptied of liquid LPG as far as possible, by normal use or transfer to another suitable vessel, flaring or venting. Where a drain line is used for emptying the vessel it shall comply with the minimum design standard and account taken that, a possible major accident could occur using this purge line. If it shall be necessary to vent LPG to atmosphere, only the minimum quantity of material shall be vented.

Purged with an inert gas until it contains less than 5% by volume LPG and maintained at or near that concentration of LPG, i.e. there are not heavy ends still gassing off flammable vapours.

6.2.4 The vessel shall then be purged by displacement with water or another suitable method. Moreover:

When a circuit is opened, the gas concentrations shall be measured and a degassing certificate handed to the operators.

Precautions shall be taken so that no foreign body gets into the circuits

If employees or contractors are required to entry the vessel i.e. for inspection purposes, a confined spaced permit must be issued and precautions, including the provision of a second person stationed at the entry, put in place.



6.2.5 The replacement of an equipment by another type, or the

replacement of materials by a different material shall be authorized by the technical department of the Company

6.2.6 Before restarting the plant, all operational, maintenance and safety procedures shall be followed.

6.2.7 If a modification has been made, the layout and associated procedures shall be consequently up-dated.

7. Internal/External Emergency Plan and Fire Precautions 7.1 An internal emergency plan shall be written under the

responsibility of the Terminal or Plant Manager or deputy which lays down the sequence of events to be followed and duties or the personnel involved. This should take into account the type and availability of equipment.

7.2 In accordance with national requirement and legislation an external emergency plan shall be prepared in co-operation with relevant emergency and/or government authorities.

7.3 All emergency plans shall be reviewed and practiced, as appropriate. Internally emergency plans should be practiced annually.

8. Record Keeping 8.1 The following records shall be regularly updated and

maintained Accident investigation reports Control and operating procedures Training records and training material Issue of personal protective equipment Formal inspections Formal audits Maintenance and calibration records Inspection records of equipment (statutory and non statutory)

Process flow and instrumentation diagrams Emergency Plans



9. Purchasing of Goods and Services 9.1 Equipment services shall be

Purchased in accordance with any Company procedures Appropriate for use in the relevant areas.

9.2 Purchases shall be done according to the following Evaluation, approval and control of equipment suppliers Evaluation and approval of potentially hazardous products and safety critical equipment prior to purchase

Purchase order conditions covering suppliers duties under relevant legislation

Rules covering limitations on local purchase Evaluation and approval of contractors undertaking safety critical activities

10. Inspection/Periodic Examination 10.1 Safety critical equipment including LPG Vessels, pipe work,

hoses, PRVs and their associated systems shall be kept in good working order, by a combination of random inspection, routine inspection, periodic examination and regular maintenance. A list of safety critical equipment should be prepared and kept up-to-date.

10.2 The frequency scope and method of routine inspection shall be set according to industry or company requirements and take into account any local regulations.

10.3 Special attention shall be given that the most frequent routine inspections are being carried out every time (e.g. daily start-up checks).

10.4 All inspections shall be properly documented and records kept according to company procedures and take into account any local regulations at all times.

10.5 Register of equipment subject to periodic examinations shall be kept up to date at all times.

10.6 Periodic examinations necessary shall be planned in advance at least on a yearly basis, to minimize interference with daily operations of the plant.

10.7 Periodic examinations shall be carried out by suitably qualified, appointed persons of the given area in line with the requirements of enforcing authorities.



11. Maintenance 11.1 It is of primary importance that, all important assets of plant

shall be regularly maintained. This regular maintenance serves the following main objectives

Safe operations Safety of supply to customers Efficient use of assets

11.2 It is the responsibility of the Terminal or Plant Manager to make sure that the plant has an approved yearly maintenance plan for at least the pressure vessels. LPG pipe work, fire protection systems electrical equipment and other safety critical equipment.

11.3 Such work according to the plan shall be carried out throughout the year, to written procedures describing both the scope of work and the methods of carrying it out.

11.4 The completion of the planned maintenance shall be reviewed and reported to the Terminal or Plant Manager on a regular basis, in line with the company procedures.

11.5 Besides planned maintenance, there shall be an efficient system in place to handle urgent repair needs, emerging during daily operations.

12. Accident Reporting/Investigation 12.1 The Terminal or Plant Manager or deputy shall ensure that

Accident Reporting / Investigation is carried out in accordance with laid down procedures.

12.2 All accidents, dangerous occurrences and near misses (incidents) shall be recorded using laid down Company Procedures and reported to the relevant Company Health and Safety Department. This includes road traffic accidents.

12.3 All serious industrial accidents/incidents shall be reported immediately to the relevant Company Health and Safety Department and Public Relations Departments through the appropriate reporting system. In turn these shall be reported to SHV Gas using the Crisis Communication System in accordance with Procedure SHV Gas –SC-03

12.4 The relevant Company Health and Safety Department shall co-ordinate the analysis and investigation of all serious accidents and issue periodic reports in accordance with Procedures SHV Gas – SC -02 and SHV Gas-SC-03 Note: In some countries, the Health and Safety Department may be an integral part of Company Engineering or Technical Department



13. Inspection and Auditing 13.1 The Terminal Manager and supervisors shall carry out formal

documented routine inspections to identify risks, monitor standards and procedures and implement any necessary follow up action.

13.2 The relevant Health and Safety Department shall publish guidance on frequency of inspections.

13.3 The relevant Health and Safety Department shall ensure that formal audits of operational locations are carried out at least every 3 years. The audits shall be carried out in accordance with laid down procedures.

13.4 Third party audits may also be periodically commissioned. 13.5 Audits by SHV Gas are undertaken on a periodic basis in

accordance with Procedure SHV Gas-SC-01. 13.6 The Terminal or Plant Manager shall annually review the

effectiveness of the management system and agree an action plan for the coming period.

13.7 As the General Manager has overall responsibility for health and Safety in the company the findings of the audit shall be reported to her/him.



Annex A Specification for liquefied petroleum gases – extract from ISO 9162

Characteristics Method of Test

Commercial Propane

Commercial Butane

Gauge vapour pressure at 40oC. kPa.max

ISO 4256 (2)

Or ISO 8973

1550(1) 520(1)

Volatility C2 hydrocarbons Report value

(3)

C4 hydrocarbons, %(molar). max. ISO 7941 7.5(1) C5 hydrocarbons, % (molar), max. ISO 7941 0.2 (6) 2.5(6) Unstaturated hydrocarbons, % (molar)

ISO 7941 Report value (4)

Report Value (4)

Dienes, % (molar). max ISO 7941 0.5(6) 0.5(6) Residual matter (5) (5) (5) Corrosiveness to Copper, max ISO 6251 1 1 Sulfur, mg/kg, max (7) 50(6) 50(6) Hydrogen sulfide ISO 8819 Pass Pass Free water content None (8) None(8) (1) Certain national standards and or regulations may prescribe other limits. (2) In case of dispute about the vapour pressure, ISO 4256 shall prevail (3) See clause 6, item b). Physical limitations of transport and storage facilities shall be considered for refrigerated transport; a common limit is 2% (molar) maximum (4) See clause 6 item c). Certain national standards may prescribe a limitation on unsaturated hydrocarbons. (5) It has not been possible to take a decision on a value for inclusion in this specification because there is no suitable ISO test method and no satisfactory correlation between the test results obtained using methods developed in different countries. Limits will be specified when a suitable test method has been adopted. Until a suitable test method has been adopted, the user of this specification is referred to the introductory discussion and proposed test method appended as annex A. Report the value for the sample concerned, and the method used to determine it, as additional information (see clause 6, item (d). (6) Certain national standards may prescribe other limits (7) An ISO method specific to liquefied petroleum gas is being developed. Until such an ISO method is available, ISO 4260 is recommended as the reference method. Other methods specified in national standard and having a valid precision statement are acceptable for quality control purposes. (8) The presence of water shall be determined by visual inspection. For shipments of refrigerated liquefied petroleum gases at their atmospheric boiling point, it is essential that the water content is below the saturation level at this temperature as determined by a method agreed between buyer and seller.

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