Determined by Board of Experts Plastics Piping systems on dd-mm-jjjj Accepted by the Harmonisatie Commission Bouw of the Stichting Bouwkwaliteit on dd-mm-jjjj National Evaluation Guideline For the KOMO ® product certificate for Plastics piping systems for renovation of piping systems for rain and waste water discharge within the building structure using cured-in-place pipes with diameters up to and including 200 mm – Part B – Products. BRL 5217 part B Published for comments. Commenting period till October 8, 2012
Transcript
Determined by Board of Experts Plastics Piping systems on dd-mm-jjjj Accepted by the Harmonisatie Commission Bouw of the Stichting Bouwkwaliteit on dd-mm-jjjj
National Evaluation Guideline For the KOMO® product certificate for
Plastics piping systems for renovation of piping systems for rain and waste water discharge within the building structure using cured-in-place pipes with diameters up to and including 200 mm – Part B – Products.
BRL 5217 part B Published for comments. Commenting period till October 8, 2012
3 Procedure for obtaining a quality declaration 11
3.1 Assessment of approval 11
3.2 Certification 11
4 Product requirements 12
4.1 General 12
4.2 Products in the "M" stage 12 4.2.1 Components of the lining tube 12 4.2.2 Other components 13
4.3 Fitness for purpose of the installed lining system at the "I" stage 13 4.3.1 Declaration of the liner system 14 4.3.2 Simulated installation and sampling 14 4.3.3 Characteristics of the liner pipe 15 4.3.3.1 General 15 4.3.3.2 Classification 15 4.3.3.3 Short-term flexural properties 15 4.3.3.4 Wall structure of the liner 16 4.3.3.5 Demonstration of resin cure 16 4.3.3.6 Water tightness liner wall 17 4.3.4 Characteristics of the lining system 18 4.3.4.1 Thermal cycling test 18
1.1 General The requirements in this evaluation guideline are used by certification bodies which are accredited by the Accreditation Council , to treat an application for or maintain a product certificate for “Plastics piping systems for renovation of piping systems for rain and waste water discharge with in the building structure using cured-in-place pipes with diameters up to and including 200 mm – Part B – Products”. The issued quality mark is called KOMO® product certificate. The technical field of this national evaluation guideline is: F2-2 Plastics piping systems. Apart from the requirements in this evaluation guideline set, the certification and attestation bodies make additional requirements, in terms of general procedural requirements of certification and attestation, as enshrined in the general certification and attestation rules of the institution. In carrying out certification activities, the certification bodies are bound by the requirements defined in chapter "Requirements imposed on the certification body".
1.2 Field of application The field of application is a renovation technique for waste water drainage systems which operate under gravity. It is applicable for drainage systems:
• inside buildings (marked with “B”) • for both inside buildings and buried in ground within the building structure
(marked with “BD”.
Note The application area “inside buildings” according to this national evaluation guideline, applies to the interior area of the building only. The application area ”within the building structure” conforms to the requirements for “inside buildings” according to EN 12056-1 (see figure 1.1.a) and NEN 3215 (see figure 1.1.b). The applied technique regards lining with cured-in-place pipes and for pipes with diameters up to and including 200 mm and if applicable renovation systems for the connections.
1 gravity drainage system “inside buildings”. 2 gravity drainage system “within the building structure”. Figure 1.1.a: Field of application (source EN 12056-1).
Figure 1.1.6: Field of application (source NEN 3215). Note: Repear systems i.e. partliners are not part of this guideline
1.3 Object of certification The object of certification is a renovation system that includes a cured-in-place pipe lining for a pipe section and a watertight and durable connection between pipes. Excluded are cured-in-place pipes according to BRL 5216 (“Seamless braided polyester fiber reinforced epoxy liner with a seamless polyester urethane membrane. De epoxy resin is a based on Bisphenol A/F and without fillers”).
1.4 Acceptance of test reports provided by the supplier If the supplier submits reports from research bodies or laboratories to show that the requirements of the evaluation guideline are met, then these reports have to be prepared by a body meeting the prevailing accreditation standard, i.e.:
• NEN-EN-ISO/IEC 17020 for inspection bodies; • NEN-EN 45011 for certification bodies certifying products; • NEN-EN ISO /IEC 17021 for certification bodies certifying systems; • NEN-EN-ISO/IEC 17024 for certification bodies certifying persons.
The body is deemed to meet these criteria if an accreditation certificate can be submitted which has been issued by the Dutch Accreditation Council (RvA) or an accreditation body with which the RvA has concluded a mutual acceptance agreement. This accreditation should relate to the tests required for this evaluation guideline. If no accreditation certificate can be submitted, the certification body shall verify whether the accreditation standard has been met or carry out the tests concerned. If it concerns a test laboratory then the certification body shall perform one or more audits at this laboratory to verify among others whether the execution of the tests in question is in accordance with the requirements of NEN-EN-ISO/IEC 17025.
1.5 Product certificate A model of the certificate to be issued on the basis of this evaluation guideline is included as an Annex I. The certificate of the installer shall be registered by the certification body. A valid copy of the certificate is present on the work location of the installer.
2.1 General definitions In this national evaluation guideline the meanings of the following terms are:
• National evaluation guideline (BRL): the agreements made within the Board of Experts on the subject of certification;
• Board of Experts (BoE): The Board of Experts “Plastics piping systems”; • Supplier: the party that is responsible for ensuring that the products meet
and continue to meet the requirements on which the certification is based; • IQC scheme: a description of the quality inspections carried out by the
supplier as part of his quality system.
2.2 Requirements and determination methods In this national evaluation guideline requirements and determination methods are included, by which the following is meant:
2.2.1 Product requirements Requirements made specific by means of measures or figures, focusing on (identifiable) characteristics of products and containing a limiting value to be achieved, which limiting value can be calculated or measured in an unequivocal manner.
2.2.2 Determination methods Pre-certification tests: tests in order to ascertain that all the requirements recorded in the national evaluation guideline are met. Inspection tests: tests carried out after the certificate has been granted in order to ascertain whether the certified products continue to meet the requirements recorded in the national evaluation guideline.
2.3 Terms and definitions For the purposes of this document, the terms and definitions given in NEN-EN-ISO 11296-1 and NEN-EN-ISO 11296-4 and the following apply. Type Testing (TT) Testing performed to verify that the material, product, joint or assembly is capable of conforming to the requirements given in the relevant standard. Note: The type test results remain valid until there is a change in the material or
product or assembly. Audit Test (AT) Test performed by a test laboratory on behalf of an inspection body or certification body to confirm that the product continues to conform to the requirements given in the relevant standard and to provide information to assess the effectiveness of the quality management system. Batch release test (BRT) Test performed by or on behalf of the manufacturer on a batch of products, which has to be satisfactory completed before the batch can be released.
CIPP Cured-in-place pipe of a particular design, produced from a liner of specified materials, with a wall structure which is uniquely defined for each diameter/ wall thickness combination, and which is impregnated with a specific resin system and installed by a specific process Lining Tube Flexible tube, consisting of carrier material, resin system, and any membranes and/or reinforcement, as combined prior to insertion in the pipe to be lined. Lateral connection joint Joint for reconnecting a lined (main) pipe to an existing or renovated lateral pipe. Resin system Thermosetting resin including the curing agent(s) and any fillers or other additives, in specified proportions. Carrier material Porous component of the liner which carries the liquid resin system during insertion into the pipe being renovated, and forms part of the installed lining system once the resin has cured. Internal membrane Membrane forming the inside surface of the pipe after installation. External membrane Membrane forming the outside surface of the pipe after installation. Preliner External membrane which is installed separately and before the resin-impregnated liner. Reinforcement Fibers incorporated in the liner, which enhance the dimensional stability of the liner and/or the mechanical properties of the cured composite. Liner Lining tube after installation. Liner system Liner and all relevant fittings after installation. Nominal size (DN) Numerical designation of the size of a component, which is a convenient round number, approximately equal to the manufacturing dimensions in millimeters (mm). This can apply to either the internal diameter (DN-ID) or the external diameter (DN-OD). Nominal stiffness (SN) Alphanumerical designation for stiffness classification purposes, which has the same numerical value a the minimum initial specific ring stiffness value required, when expressed in Newtons per square metre (N/m2).
Specific ring stiffness (S) Physical characteristic of the pipe, expresses in Newtons per square meter (N/m2). It is a measure of the resistance to ring deflection per metre length under external load and is defined by Equation (1):
3md
IES ×= (1)
where E is the apparent modulus of elasticity, which can be derived from the result of the ring stiffness test, i.e. ISO 7685 or EN 1228, expressed in Newtons per square metre (N/m2); dm is the mean diameter of the pipe in metres; I is the second moment of area in the longitudinal direction per metre length, in metres to the fourth power per metre, (m4/m) (see Equation (2)).
12
3eI = (2)
where e is the wall thickness, in metres (m). Mean diameter (dm) Diameter of the circle corresponding with the middle of the pipe wall cross section. It is given, in metres (m), by either Equation (3) or (4) dm = di + e (3) dm = de − e (4) where di is the internal diameter, in metres (m); de is the external diameter, in metres (m); e is the wall thickness of the pipe, in metres (m). Initial specific ring stiffness (S0) Value of S obtained when tested in accordance with ISO 7685 or EN 1228, in Newtons per square metre (N/m2). Dry creep factor (αx,dry) Ratio of the long-term specific ring stiffness, Sx at x years determined under sustained loading under dry conditions when tested in accordance with ISO 7684, to the initial specific ring stiffness S0. It is given by Equation (5).
0, S
S xdryx =α (5)
Calculated long-term specific ring stiffness (Sx) Calculated value of S at x years, obtained by Equation (6)
dryxx SS ,0 α×= (6) where x is the elapsed time in years specified in the relevant product standard;
αx,dry is the dry creep factor; S0 is the initial specific ring stiffness, in Newtons per square metre (N/m2).
2.4 Abbreviations Table 2.2 Abbreviations Abbreviation Term BRL national evaluation guideline BoE Board of experts RvA Dutch accreditation council CIPP Cured-in-place pipe IQC internal quality control CB certification body EP epoxy resin GRP Glass-reinforced thermosetting plastics PA Polyamide PAN Polyacrylonitrile PEN Polyethylene naphthalate PE Polyethylene PET Poly(ethylene terephthalate) PP Polypropylene PUR Polyurethane PVC-U Unplasticized poly(vinyl chloride) UP Unsaturated Polyester VE Vinyl Ester
2.5 Symbols Table 2.3 Symbols symbol description S Specific ring stiffness I moment of inertia dm mean outside diameter e wall thickness of composite em mean wall thickness of composite dn nominal outside diameter αx,dry dry creep factor at x years S0 Initial specific ring stiffness Sx Calculated long-term specific ring stiffness, x in years emin minimum wall thickness of the composite
3.1 Assessment of approval The assessment of approval, conducted by the certification body, will be performed on basis of the product requirements and the test methods in this evaluation guideline and contain: • (Sample) research, to determine whether the products meet the product requirements; • Assessment of the production of individual liner components; • Assessment of the quality system and the IQC scheme; • Examination for the presence and operation of other required procedures; • Assessment of the regulations of the supplier. A model of the IQC scheme to be issued on the basis of this evaluation guideline is included as an Annex II
3.2 Certification After completion of the assessment of approval results are presented to the decision maker. The decision maker assesses the results and determines whether the certificate can be granted or that additional information and / or studies are required before a certificate can be granted.
4.1 General In this chapter the product requirements are laid down for cured-in-place pipes (CIPP) and their intermediates of the liner system. Also in this chapter the methods, to determine whether these requirements are met, are laid down. This includes requirements related to NEN-EN-ISO 11296, part 1 and part 4, and requirements of normative documents and requirements prepared by the BoE. The requirements will be included in the technical specification of the product, which is contained in the product certificate. Following NEN-EN-ISO 11296-4, the distinction is made between "Manufactured" phase ("M" stage) and "Installed" phase ("I" stage). "M" stage refers to a stage as manufactured, i.e. before any subsequent site processing of components associated with the cured-in-place renovation technique. The "I" stage refers the stage as installed, i.e. in final configuration after any site processing of components associated with the CIPP renovation technique. This BRL for products and materials used for renovation shall specify the various properties of the components and materials in both stages. The object of certification is a renovation system that includes cured-in-place pipe lining for a pipe section and watertight and durable sealing of laterals. The fitness for purpose of every component of the liner system shall be demonstrated by means of a type test on a assembly including its component. When the assembly fulfills the requirements of this BRL the liner system components shall be declared as a suitable lining system for the application according to clause 4.3.1.
4.2 Products in the "M" stage "M" stage (as manufactured) relates to components before subsequent site processing of the components associated with the cured-in-place renovation technique.
4.2.1 Components of the lining tube The Lining tube shall comprise at least the following components:
• Resin system. • Carrier.
In addition, they may optionally comprise: • Reinforcement. • Internal membrane or temporary membrane. • External membrane.
The relationship between these components is shown in figure 4.1 Note 1. For certain liner systems the external membrane has the same functional
Figure 4.1 Typical wall construction of a lining tube according to ISO 11296-4. Lining tube components shall comprise materials conforming to table 4.2 and the material used for each component shall be specified to the CI. Table 4.2 Classification of lining tube by their materials. Component Materials Resin system: Resin type Filler type Curing system
e.g. UP, VE or EP None, inorganic or organic Heat-initiated, light-initiated or ambient cure
Carrier material/ reinforcement e.g. Polymeric fibers: PA, PAN, PEN, PET or PP. Glass fibers conforming to 4.2.2 of EN 14364:2008. Combinations of the above fibersa.
Membranes (internal, external or temporary)
Unrestrictedb
a) Where a combination of fibers is used, the proportions by mass of each fiber type shall be declared to within 5 %. b) There are no restrictions on the choice of materials used for membranes.
4.2.2 Other components The fitness for purpose of the lining system depends among other things on the characteristics of the other components. The requirements of this other components in the “M” stage is part of the IQC scheme of the certificate owner.
4.3 Fitness for purpose of the installed lining system at the "I" stage This paragraph includes the requirements for the finished liner system, the manufacture of which, by definition, is completed until the resin is cured at the "I" stage.
Key a Internal or temporary membrane b Composite: resin in
carrier/reinforcement c External membrane d Existing pipeline
4.3.1 Declaration of the liner system For each lining tube and all other components required for installing and making the (lateral) connection applies that the:
• description of the built up and drawing with dimensions of the lining tube(s); • description of the built up and drawing with dimensions of the connection; • when relevant, description and composition of the seal / grout; • tolerances (dimensions, materials); • product names and product types of the materials; • technical specifications of the material and products; • work instructions of the components.
shall be specified to the certification body.
4.3.2 Simulated installation and sampling Simulation installations shall be carried out to produce samples for type testing. Given that the processing of CIPP, irrespective of curing system, is sensitive to heat loss to the existing pipeline and surround, the thermal environment of simulated installations used to produce representative samples for type testing shall be controlled. The supplier of the product must demonstrate this to the certification body. Samples for type testing of CIPP, and when applicable the combination of CIPP and joints shall be manufactured according to the system supplier’s manual. For aboveground applications the simulated installation of the test assembly shall be carried out on a firm wall or frame using both fixed points and guide brackets, without other support of the test assembly. In annex III the shop drawing of the test assembly is given. The host pipe can be a combination of cast iron and unplasticized polyvinylchloride, whatever applicable. The impregnated lining tube shall be installed through one of the openings of the test assembly (see annex III). In case a joint is type tested two lining tubes shall be installed. One lining tube is installed through the opening in the DN 75 pipe. The other lining tube is installed through the opening in the DN150 pipe. The watertight joint shall be manufactured in the 45° bend connecting the DN 75 to DN 125 pipe pieces (see annex III). The testing program on the test assembly shall be carried out in the following order:
1. Preliminary leak tightness test with water in accordance with paragraph 4.3.4.2.
2. Testing the assembly by means of a thermal cycling test in accordance with paragraph 4.3.4.1.
3. High-pressure water jetting with water in accordance paragraph 4.3.4.4. 4. Final leak tightness test with water in accordance with paragraph 4.3.4.2.
In addition pipe samples shall be prepared for type testing:
• Long-term specific ring stiffness according to paragraph 4.3.3.2. • Short-term flexural properties according to paragraph 4.3.3.3. • Wall structure of the liner according to paragraph 4.3.3.4. • Demonstration of cure according to paragraph 4.3.3.5. • Water tightness liner wall according to paragraph 4.3.3.6. • Chemical resistance according to paragraph 4.3.4.3.
Simulated installations shall be supervised by the certification body.
4.3.3 Characteristics of the liner pipe
4.3.3.1 General For underground applications the installer shall prove to the certification body that the design of the liner system fulfills the requirements concerning statistical calculation according to ATV-M 127-2. The minimum required life time shall be 50 years.
4.3.3.2 Classification Lining tubes and laterals shall be classified according to nominal size (DN) and calculated long-term specific ring stiffness (S50). Nominal size The nominal size (DN-OD) of the lining tubes and laterals shall be up to and including 200 mm and shall be declared by the certificate owner. Long-term specific ring stiffness S50 The long-term specific ring stiffness S50 of the liners and laterals (DN and other diameters) shall be at least 500 N/m2 and must be demonstrated for at least one nominal size. The initial specific ring stiffness S0 shall be determined using either of the methods given in ISO 7685 (methods A or B) or EN 1228. Two test pieces, of the same size and classification shall be used. The length of the test piece shall be the diameter (DN) with a permissible deviation of ± 5 %. The test shall be conducted using a relative ring deflection between 2.5 and 3.5 %. The dry creep factor α50,dry (x = 50 years) shall be determined according to EN 761. Two test pieces, of the same size and classification shall be used. The length of the test piece shall be the diameter (DN) with a permissible deviation of ± 5 %. The test shall be conducted using a relative ring deflection between 1.5 and 2.0 %. The load is maintained for a period of 10000 hours. During this period measure and record to within ± 1 % of the measured value the vertical deflection at mid-length of the test piece at specified time intervals after loading such that at least three readings are taken for each decade of the logarithm of the time in hours. Calculated the long-term specific ring stiffness (S50) using equation (7)
drySS ,50050 α×= (7)
The tests shall be carried out at a temperature of (23 ± 5) °C.
4.3.3.3 Short-term flexural properties The flexural stress at first break (σfb) and the flexural strain at first break (εfb) shall be determined according to ISO 11296-4 annex B. The flexural stress at first break (σfb) shall not less then 25 MPa. The flexural strain at first break (εfb) shall not less then 0.75%.
4.3.3.4 Wall structure of the liner The thickness and relative position of each component layer of the wall, including tolerances, shall be specified as declared values. The wall structure shall be verified by visual examination of the edge of a cut section of pipe, with magnification, if necessary, and use of a scale or caliper capable of measuring to within 0.1 mm. Measurements shall be carried out at a temperature of (23 ± 2) °C. The volume of any entrained air and/or evolved gas must be minimal. The density according to ISO 1183-1 is determined and must be declared by the manufacturer of the lining tube. Table 4.4 Wall thickness and wall construction Item Requirement Test method Wall structure Assessment of the declared wall
thickness and relative position of each component layer
Handbook producer
mean wall thickness composite
em ≥ design wall thickness
EN-ISO 3126
minimum wall thickness composite
emin ≥ 80% of design wall thickness emin ≥ 3 mm
Density > 90 % declared value ISO 1183-1, method A – immersion method
The declared value for the density shall be determined on samples from a simulated installation. Three test pieces with a diameter between 20 and 30 mm evenly spaced over the length of the installed liner shall be drilled out of the liner wall. After visual examination of the edge of the cut section for voids, the density is determined and the arithmetic mean of the three observations is calculated. This calculated value shall be the declared value and shall be specified to the certification body. Note: The requirements for installed liner systems are mentioned in BRL 5217,
part A. Determination of the density is one of the batch release tests (BRT) mentioned in part A.
4.3.3.5 Demonstration of resin cure Resin cure shall be demonstrated in accordance with the determination methods given in table 4.5. Samples shall be taken from actual or simulated installations. The glass transition temperature shall be specified to the certification body.
Table 4.5 Demonstration of resin cure Characteristic Requirement Test parameters Test method
Parameter value Epoxy Not less then
declared value glass transition temperature mid point temperature (Tmg) heating rate
20 °C/min
ISO 11357-2
Polyester/ Vinylester
Not more than 2% relative to mass of the total sample taken
residual styrene content
ISO 4901
Styrene free resin systems
(Note)
Note: Instead of styrene another monomer is used in styrene free resin systems.
In unsaturated polyester resin systems the monomer styrene is used to cure the resin. In the innovative styrene free resin systems the function of the styrene is taken over by another type of monomer. The residual content of this monomer shall be determined also using the appropriate chromatographic techniques.
The resin cure of innovative styrene free resin systems shall be demonstrated to the certification body before approval of the resin system. Residual styrene content shall be determined for polyester based liners according to ISO 4901. Polymerized UP resin pieces of any shape that will permit the production of strips of the cross-section of the liner – so that the styrene content over the entire thickness of the liner can be recorded - may be used. Cut the polymerized piece into strips of width 1 to 2 mm. Dry the strips and break into pieces of length about 10 mm. During cutting and drying avoid any overheating which could modify the styrene monomer content. Depending on the styrene monomer content expected, weight 0.5 g to 2 g of sample for the determination of styrene content.
4.3.3.6 Water tightness liner wall The ability to prevent water transport through the liner wall shall be tested according to annex IV. The test requirement is satisfied when no drops, no foaming, no humidity are visible at the low pressure surface of the test piece. Water penetration is considered to have occurred if paper laid on the samples becomes colored by the moisture. Coloring in the composite is permissible.
4.3.4 Characteristics of the lining system The fitness for purpose of the combination of the lining tube and auxiliary parts (lining system) shall be demonstrated by means of a thermo cycling test on an assembly.
4.3.4.1 Thermal cycling test The thermal cycling test shall be carried out in accordance with EN 1055, program A. The method assesses leak tightness of the test assembly. In deviation from EN 1055 the test setup is in accordance to the shop drawings given in annex III. While monitoring the test assembly for any signs of leaks or changes of appearance, subject the test assembly to alternating passages of hot and cold water for 1500 cycles using program A. On completion of the 1500 cycles, fill the test assembly with water, at a temperature not exceeding 20 °C, to a head of 0,5 m above the highest point of the centerline of the upper lateral pipe. Leave for a minimum period of 15 minutes and then visually check for and record any leaks. In addition to EN 1055;
• Visually check for release of the internal membrane when applied. • carry out the final leak tightness test in accordance with EN 1610 (paragraph
4.3.4.2). The test requirements are satisfied if:
• there are no leaks visible; • no release of the internal membrane is visual; • the test assembly comply to the requirements of the leak tightness according
to EN 1610.
4.3.4.2 Leak tightness of the liner system The leak tightness of the liner system shall be carried out according to EN 1610 paragraph 13. The test shall be conducted with water (Method “W”) with a test pressure of 50 kPa measured at the highest point of the test assembly. Pressure shall be maintained within 1 kPa of the test pressure by topping up with water. The testing time is 30 minutes. The test requirement is satisfied if the amount of water added is not greater than 0.15 l /m2. Note: m2 refers to the wetted internal surface of the test assembly.
4.3.4.3 Chemical resistance The chemical resistance of the liner system to domestic sewage should be evaluated according to EN ISO 175. The resistance to:
• a solution of water and sulphuric acid (pH = 2) and • a solution of water and sodium hydroxide (pH=12)
shall be proven. Test pieces shall have a thickness equal to the thickness of the liner. To be verified is the change in % of the following conditions after (672 ± 5) hours (28 days) of exposure at (23 ± 2) °C:
• stress at first break according to ISO 11296-4 annex B; • strain at first break according to ISO 11296-4, annex B;
Following maximum deviations from the arithmetic means in % are allowed after media exposure:
• mass: ≤ 2 • stress at first break: ≤ 10 • strain at first break: ≤ 20
The mass shall be determined on three test pieces with a length and width of 50 mm with an accuracy of 0,01 gram. Arithmetic mean and standard deviation shall be calculated. Test pieces for the flexural test shall comply to ISO 11296-4 annex B. Tests shall be carried out in five fold. In case the deviations do not comply with the maximum allowable value, an additional testing for exposure of the above mentioned media is required as per annex C of EN ISO 11296-4.
4.3.4.4 Resistance to high pressure water jetting The resistance to high pressure jetting shall be determined according to CEN/TR 14920. The test shall be carried out with nominal test parameters in accordance to table 2 of CEN/TR 14920. In combination with the nozzle with dimensions complying to figure 1 of the CEN/TR 14920 calculates a jet power density Dj = 480 W/mm2. Describe the appearance of the test surfaces after completion of 50 cycles. The test requirement is satisfied if:
• no release of the internal membrane is visual; • the test assembly comply to the requirements of the leak tightness according
to EN 1610. Note: Cleaning an unblocking of the sewer will preferably consist of cleaning with
water under high pressure. Mechanical cleaning, i.e. with closet augers and drain snakes only by qualified personnel.
4.4 Installation and user information For the installationof liners and/or components conforming to this evaluation guideline, national and/or local requirements and relevant codes of practice shall apply, including safety regulations. The manufacturer of the liner shall provide proper written installation and users’ instructions in the language of the country where the liners are to be installed and used, covering transport, storage and handling of the liners and components, as well as their installation in accordance with the manufacturer’s as well as applicable national and/or local requirements. These instructions shall reference compliance with these national environmental regulations pertaining to the storage, transport and processing of the liners. National regulations may e.g. stipulate also that the installation is to be carried out by installers certified in accordance with national legislation and requirements (for example referring to a certified installer on the basis of BRL 5218, part A). The instructions shall include the precautions to be taken, the processing details and requirements as well as the testing requirements when testing the installed liner on site. It is advised to include in the installation instructions recommendations related to environmental conditions and the realization of optimum processing conditions.
4.5 Certification mark The following marks and indications must be applied right and clear on each product or product packaging: - Manufacturer name or trademark; - Date of production or encoding; - Type designation; - KOMO ® logo and certificate number
5.1 General This chapter contains the requirements that have to be fulfilled by the supplier’s quality management system.
5.2 Manager of the quality system Within the manufacturer’s organisational structure an employee must be appointed who is in charge of managing the quality system.
5.3 Internal quality control/quality plan As part of the quality system the supplier must implement an internal quality control schedule (IQC-scheme). In this IQC-scheme the following must be demonstrably recorded:
• which aspects are inspected by the manufacturer; • according to which methods these inspections are carried out; • how often these inspections are carried out; • how the inspection results are registered and stored.
This IQC-schedule shall be in the format as shown in the annex II. The schedule must be detailed in such a way that it provides the CB sufficient confidence that requirements will be continuously fulfilled. At the time of the assessment of approval this schedule must function a minimum of three months.
5.4 Procedures and work instructions The manufacturer must be able to submit: • procedures for:
o the handling of non-conforming products; o corrective actions in case non-conformities are found; o the handling of complaints regarding the products and / or services supplied;
• The work instructions and inspection sheets in use. • Instructions for packaging and closing off of products during storage and
This chapter contains a summery of tests and inspections to be cared out during: • Initial evaluation: the investigation necessary in order to determine whether
all requirements of the evaluation guideline are fulfilled; • Inspection visit: the surveillance inspections carried out after issue of the
certificate in order to determine whether the certified products continuously fulfill the requirements of this guideline. The inspections are carried out according to the frequency indicated.
• Inspection of the quality system: inspection with regard to the correct implementation of the IQC-schedule and procedures.
6.1 Test – and assessment matrix Description of requirement Article this
guideline Test within the scope of: Initial evaluation
Surveillance by CB after issue of the certificate Inspec-tion
Frequency
Products in the “M” stage Components of the lining tube 4.2.1 X X Each inspection Other components 4.2.2 X X Each inspection Fitness for purpose of the installed lining system at the “I” stage Declaration of the liner system 4.3.1 X X Each inspection Simulated installation and sampling
4.3.2 X
characteristics of the liner pipe General 4.3.3.1 X X Each inspection Classification 4.3.3.2 X X Each inspection Nominal size 4.3.3.2 X X Each inspection Long-term specific ring stiffness S50 4.3.3.2 X Dry creep factor 4.3.3.2 X Flexural stress at first break 4.3.3.3 X Flexural strain at first break 4.3.3.3 X Wall structure of liner 4.3.3.4 X Mean wall thickness (composite) 4.3.3.4 X minimum wall thickness (composite)
4.3.3.4 X
Density 4.3.3.4 X Demonstration of resin cure 4.3.3.5 X water tightness of liner wall 4.3.3.6 X characteristics of the lining system Thermal cycling test 4.3.4.1 X Leak tightness of the liner system 4.3.4.2 X Chemical resistance 4.3.4.3 X Resistance to high pressure water jetting
4.3.4.4 X
Installation and user information 4.4 X X Each inspection Certification mark 4.5 X X Each inspection Quality system requirements 5 X X Each inspection In case of significant changes in the products and/or production process the product shall be evaluated again whether the requirements are fulfilled (to be decided by the certification body).
6.2 Inspection visits The certification body shall carry out inspection visits (audits) at the supplier at regular intervals to check whether the supplier complies with his obligations. About the frequency of the inspection the board of experts decides. At the time this national evaluation guideline took effect, the frequency was set at 2 inspections visits per year. In case the supplier is ISO 9001 certified for the scope and production location concerned, the frequency has been set to one inspection visit per year. The results of each inspection shall be traceable recorded in a report.
6.3 Inspection of the quality system The manufacturer’s quality system shall be assessed by the certification body with regard to at least the aspects mentioned in the Kiwa-Regulations for Process Certification. Inspections shall at least refer to: The suppliers IQC-scheme and the results obtained from inspections carried out by the supplier, the correct way of marking of certified products, complying with required procedures. The results of each inspection shall be traceable recorded in a report.
7.1 General The certification body has to fulfil the requirements of EN 45011. Furthermore, the certification body has to be accredited for the subject of this BRL by the Dutch Accreditation Council (RvA) or by an equivalent accreditation body (an accreditation body with whom RvA has signed an agreement of mutual recognition). The certification body must have the disposal of a regulation, or an equivalent document, in which the general rules for certification are laid down. In particular these are:
• The general rules for carrying out the pre-certification, to be distinguished in: o The way suppliers are informed about the handling of the
application; o Execution of the pre-certification; o The decision with regard to the pre-certification executed.
• The general rules with regard to the execution of inspections and the inspection aspects to be employed;
• The measures to be taken by the certification body in the event of nonconformities;
• The rules for termination of the certificate; • The possibility of lodging appeal against decisions or measures made by the
certification body.
7.2 Certification staff The staff involved in the certification may be sub-divided into:
• Certification experts: they are in charge of carrying out the pre-certification tests and assessing the inspectors’ reports;
• Inspectors: they are in charge of carrying out external inspections at the supplier’s works;
• Decision-makers: they are in charge of taking decisions in connection with the pre-certification tests carried out, continuing the certification in connection with the inspections carried out and taking decisions on the need to take corrective actions.
7.2.1 Qualification requirements The following qualification requirements have been set by the Board of Experts for the subject matter of this Evaluation Guideline: EN45011 Certification Expert Inspector Decision maker
Education - general Technical higher-level professional education Internal training certification and Kiwa policy Training auditing
Intermediate-level professional education Internal training certification and Kiwa policy Training auditing
Higher level professional education Internal training certification and Kiwa policy Training auditing
Education - specific for BRL relevant technical education specific studies and training (know-how and skills)
for BRL relevant technical education specific studies and training (know-how and skills)
not applicable tenzij door CvD specifieke eisen zijn gesteld
Experience - general 1 year of relevant work experience with at least 4 pre certification tests of which one carried out independent under supervision.
1 year of relevant work experience with at least 4 inspections of which one carried out independent under supervision
4 year of relevant work experience with at least 1 year in certification
Experience - specific Detailed knowledge of the BRL and 4 certification tests carried out on the basis of the BRL or one related.
Detailed knowledge of the BRL and 4 inspections carried out on the basis of the BRL or one related.
general knowledge of the BRL
7.2.2 Qualification Certification staff must be demonstrably qualified by evaluation of education and experience of the above-mentioned requirements. In case qualification takes place on the basis of other criteria, then this has to be recorded in writing. The authority for qualification rests with:
• Decision-makers: qualification of the certification experts and inspectors; • Management of the certification body: qualification of the decision-makers.
7.3 Report Pre certification tests The certification body records the results of the pre-certification tests in a report. The report must fulfil the following requirements:
• Completeness: the report judges about all requirements of the evaluation guideline;
• Traceability: the findings whereupon the judgements are based must be recorded in a traceable way;
• Basis for decision: the decision-maker with regard to granting of the certificate, must be able to base his decision upon the findings recorded in the report.
7.4 Decision for granting the certificate The decision with regard to the issue of the certificate must be made by a qualified Decision maker, who was not involved at the pre-certification tests. The decision must be traceable recorded.
7.5 Lay out of quality declaration The product certificate shall be conform the model included as an annex.
7.6 Report to the Board of Experts The certification body reports at least once a year about the certification activities performed. In this reporting, the following subjects must be addressed:
• Mutations in number of certificates (new/cancelled). • Number of inspections carried out in relation to the fixed frequency. • Results of the inspections. • Measures imposed in case of non-conformities. • Complaints received from third parties concerning certified products.
7.7 Interpretation of requirements The Board of Experts may record the interpretation of requirements of these evaluation guidelines in one separate interpretation document.
8.1 Standards / normative documents: Standard Title NEN-EN-ISO/IEC 17025:2005
General requirements for the competence of testing and calibration laboratories
NEN-EN-ISO/IEC 17020:2012
General criteria for the operation of various types of bodies performing inspection
NEN-EN 45011:1998 General requirements for bodies operating product certification systems
NEN-EN-ISO/IEC 17024:2003
Conformity assessment - General requirements for bodies operating certification of persons
NEN-EN-ISO 11296-1:2011 Plastic piping systems for renovation of underground non-pressure drainage an sewerage networks – part 1: General.
NEN-EN-ISO 11296-4:2011 Plastic piping systems for renovation of underground non-pressure drainage an sewerage networks – part 4: Lining with cured-in-place-pipes.
ATV-M 127-2:200 Statische Berechnung zur Sanierung von Abwasserkanälen und –Leitungen mit Lining- und Montageverfahren
ISO 7685:1998 Plastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes - Determination of initial specific ring stiffness
ISO 7684:1997 Plastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes - Determination of the creep factor under dry conditions
NEN-EN 1228:1996 Plastics piping systems - Glas-reinforced thermosetting plastics (GRP) pipes - Determination of initial specific ring stiffness
NEN-EN 761:1994 Plastics piping systems - Glass-reinforced thermosetting plastics pipes (GRP) - Determination of the creep factor under dry conditions
NEN-EN-ISO 3126:2005 Plastics piping systems - Plastics components - Determination of dimensions
ISO 899-2:2003 Plastics – Determination of creep behaviour – part 2: Flexural creep by three-point bending.
NEN-ISO 11357-2:1999
Plastics – Differential scanning calorimetry (DSC)- Part 2: Determination of glass transition temperature
NEN-ISO 4901:2011 Reinforced plastics based on unsaturated-polyester resins - Determination of the residual styrene monomer content, as well as the content of other volatile aromatic hydrocarbons, by gas chromatography
NEN-EN 1055:1996 Plastics piping systems - Thermoplastics piping systems for soil and waste discharge inside buildings - Test method for resistance to elevated temperature cycling
NEN-EN 1610:1998 Construction and testing of drains and sewers NEN-EN-ISO 175:1997 Plastics - Methods of test for the determination of the effects of
immersion in liquid chemicals CEN/TR 14920:2005 Jetting resistance of drain and sewer pipes - Moving jet test
method BRL 5216/01:2009 Ter plaatse uithardende epoxy leidingsystemen voor renovatie
The test assembly shall be set-up according to the system supplier’s manual. The following shall be reported to the CB:
• the position of the fixed points and the guided brackets; • the material of the various host pipe pieces, i.e. cast iron or PVC-U; • detailed description of the procedure making the joint; • description of the procedure for closure of the ends of the pipe system.
The water tightness of the liner wall structure is demonstrated by applying a water pressure gradient over the thickness of a test piece. The test piece shall be sampled from a liner. The test shall be performed at ambient temperature conditions (23 ± 5) °C. Apparatus Vacuum flask or Erlenmeyer with connection for a vacuum source. Rubber adaptor for air tight seal between the sample and rim of the vacuum flask. Device to create the prescribed (negative) pressure. Test liquid (water, maybe colored without wetting agent). Sample and sample preparation The test is performed at three locations on the sample specimen. The test piece with a length (axial direction) of at least 20 cm and width (hoop direction) of at least 30 cm is sampled. Membranes that are not an integral part of the liner are destroyed or removed. Any external membrane shall be removed without cutting into the composite. The thickness of the internal membrane shall be measured with a caliper within an accuracy of 0.1 mm. The surface is incised to a depth where all internal membranes are cut without damaging the composite. A grid of cut lines is applied to the surface. The distance between successive lines is 4 mm. A grid contains 10 x 10 lines that are perpendicular to each other. The samples are to be stored at least 4 hours before testing. Performance of the material test low-pressure test: negative pressure is applied to the sample from the outside. The test area has a diameter of (45 ± 5) mm. The test liquid will be applied on the inside (concave surface) of the sample. Testing pressure -0.5 ± 0.25 mbar. Test duration: 30 minutes Test liquid: drinking water (colored) without wetting agent. Number of measurements: three per sample.
