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1 Dit pdf bestand bevat alle beschikbare talen van het opgevraagde document Ce fichier pdf reprend toutes langues disponibles du document demandé This pdf file contains all available languages of the requested document Dieses PDF-Dokument enthält alle vorhandenen Sprachen des angefragten Dokumentes Formulaire COPRO GRANULATS RECYCLES 12 (version 5.0 du )... Page 1/1

2 PTV TECHNICAL PRESCRIPTIONS TECHNICAL PRESCRIPTIONS FOR ELASTOMERIC SEALS: Part 4: Cast polyurethane sealing elements COPRO vzw Version 1.0 dated Impartial institute for the monitoring of construction products COPRO Z.1 Research Park Kranenberg Zellik tel. +32 (2) fax +32 (2) BTW BE KBC BE

3 CONTENTS FOREWORD INTRODUCTION TERMINOLOGY AVAILABILITY OF THIS PTV STATUS OF THIS PTV HIERARCHY OF RULES AND REFERENCE DOCUMENTS QUESTIONS AND COMMENTS POSITIONING OF TECHNICAL PRESCRIPTIONS PTV FORMAT OBJECTIVES SCOPE REFERENCE DOCUMENTS PRESCRIPTIONS PRODUCTION UNIT AND EQUIPMENT RAW MATERIALS PRODUCTION PROCESS ELASTOMERIC SEALS CLASSIFICATION TEST METHODS SAMPLING SAMPLE PREPARATION High chemical resistance PRODUCT IDENTIFICATION PRODUCT NAME IDENTIFICATION Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements PTV p. 2/17 Version 1.0 dated

4 FOREWORD This document contains the technical prescriptions for elastomeric seals for pipe joint seals in water and drainage applications. The elastomeric seals are made of cast polyurethane. The requirements included in these PTV respond to needs established by the various interested parties according to local customs. The requirements can be divided in 2 parts obligated requirements and voluntary requirements. For the obligated requirements, this PTV refers to the standard NBN EN For the additional, voluntary requirements, this PTV describes requirements and test methods. A manufacturer can decide for each seals to which additional requirements his seals comply. The conformity of elastomeric seals can be certified under the voluntary BENOR mark. With the BENOR mark, the supplier has to declare the performance of the elastomeric seals for all the characteristics relevant to guaranteeing the application and limit values imposed by this PTV BENOR certification is based on full product certification in accordance with NBN EN ISO/IEC The CE mark applies to elastomeric seals cast polyurethane sealing elements coming under the area of application of NBN EN Pursuant to European Regulation (EU) no. 305/2011 (Construction Product Regulation CPR) dated , the CE mark relates to the essential characteristics of the elastomeric seals cast polyurethane sealing elements specified in NBN EN 681-4, Annex ZA, Table ZA.1. The CE mark is the only mark to declare that the elastomeric seals cast polyurethane sealing elements complies with the declared performance of the essential characteristics covered by NBN EN PTV Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements Version 1.0 dated page 3/17

5 1 INTRODUCTION 1.1 TERMINOLOGY Definitions Article Supplier Impartial body Producer Product Production unit Test Reference document Type testing Set of units of a product with the same characteristics and performance that are produced in a specific manner and comply with the technical file. The party having to ensure that elastomeric seals complies with the technical regulations. This definition can apply to the producer, the dealer, the importer or the distributor. Body that is independent of the supplier or user and is entrusted with conducting the acceptance test on delivery. The party responsible for producing elastomeric seals. The result of an industrial activity or process. Meant by this in the context of these technical regulations is elastomeric seals. It is the collective term for all articles and product types to which these PTV apply. Technical facility/facilities tied to a geographical location used by a producer and in which one or more products are made. Technical action comprising the determination of one or more properties of a raw material or product according to a specified process. Document specifying the technical characteristics with which the materials, equipment, raw materials, production process and/or the product must comply (a standard, specification or any other technical specification). A series of checks for initially establishing (initial type testing) or, possibly, periodically confirming (repeat type testing) the characteristics of an article or product type and its conformity Abbreviations PTV Technical Prescriptions All symbols and abbreviations described in NBN EN are also valid in this PTV. Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements PTV p. 4/17 Version 1.0 dated

6 1.1.3 References ISO ISO 48 ISO 37 ISO ISO 188 ISO 9691 ISO ISO 1817 ISO ISO ISO 3387 ISO 4649 ISO 34-2 NBN EN Rubber - Tolerances for products - Part 1: Dimensional tolerances Rubber, vulcanized or thermoplastic - Determination of hardness (hardness between 10 IRHD and 100 IRHD) Rubber, vulcanized or thermoplastic - Determination of tensile stress-strain properties Rubber, vulcanized or thermoplastic - Determination of compression set - Part 1: At ambient or elevated temperatures Rubber, vulcanized or thermoplastic - Accelerated ageing and heat resistance tests Rubber - Recommendations for the workmanship of pipe joint rings - Description and classification of imperfections Rubber, vulcanized or thermoplastic - Determination of compression set - Part 2: At low temperatures Rubber, vulcanized or thermoplastic - Determination of the effect of liquids Rubber, vulcanized or thermoplastic - Resistance to ozone cracking - Part 1: Static and dynamic strain testing Rubber, vulcanized or thermoplastic - Determination of stress relaxation in compression - Part 1: Testing at constant temperature Rubber - Determination of crystallization effects by hardness measurements Rubber, vulcanized or thermoplastic - Determination of abrasion resistance using a rotating cylindrical drum device Rubber, vulcanized or thermoplastic - Determination of tear strength - Part 2: Small (Delft) test pieces Elastomeric seals Material requirements for pipe joint seals used in water and drainage applications - Part 4: Cast polyurethane sealing elements This PTV contains dated and undated references. Only the cited version applies to dated references. The latest version always applies to undated references, including any errata, addenda and amendments. Of all the EN standards referred to in these regulations, the corresponding Belgian publication NBN EN applies in each case. COPRO can allow the use of a publication other than the Belgian one provided its content is identical to that of the Belgian publication. PTV Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements Version 1.0 dated page 5/17

7 1.2 AVAILABILITY OF THIS PTV The current version of this PTV is available free of charge on the COPRO website. A paper version of this PTV can be ordered from COPRO. COPRO has the right to charge for this. No changes may be made to the original PTV approved by the sectoral commission and/or confirmed by the Board of Directors of COPRO. 1.3 STATUS OF THIS PTV Version of this PTV This PTV concerns version Approval of this PTV This PTV was approved by the Sectoral Commission on Confirmation of this PTV This PTV was confirmed by the Board of Directors of COPRO on Registration of this PTV This PTV was submitted to the association BENOR on HIERARCHY OF RULES AND REFERENCE DOCUMENTS Legislation If certain rules contained in this PTV are inconsistent with applicable law, the rules arising from the legislation shall prevail. It is the responsibility of the supplier to monitor this and report any contradictions to COPRO in advance Directives concerning health and safety If certain technical regulations are inconsistent with the directives concerning health and safety, such directives shall prevail. It is the responsibility of the supplier to monitor this and report any contradictions to COPRO in advance. Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements PTV p. 6/17 Version 1.0 dated

8 1.4.3 Special specification If certain rules from the applicable special specification are inconsistent with these technical regulations, the supplier can report this to COPRO. 1.5 QUESTIONS AND COMMENTS Questions or comments concerning these technical regulations are directed to COPRO. PTV Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements Version 1.0 dated page 7/17

9 2 POSITIONING OF TECHNICAL PRESCRIPTIONS 2.1 PTV FORMAT Format of this PTV These technical prescriptions for the elastomeric seals cast polyurethane sealing elements are drawn up by the Sectoral Commission of COPRO for elastomeric seals. 2.2 OBJECTIVES Purpose of this PTV The aim of this PTV is to specify requirements for the elastomeric seals - cast polyurethane sealing elements used for pipe joint used in water and drainage applications According to the legislation in the Member State where elastomeric seals - cast polyurethane sealing elements for pipe joint in water and drainage applications is brought onto the market, the performance for some essential characteristics has to be declared for the CE mark by the supplier on the basis of its Performance Declaration in accordance with the harmonized standard NBN EN Unless other statutory provisions apply, the supplier has the choice in the context of the CE mark to declare no performance for one or more essential characteristics. This PTV clarifies some requirements and adds supplementary provisions with regard to use and sustainable behavior. 2.3 SCOPE Subject of these technical regulations The subject of these technical prescriptions is the same as the scope in NBN EN 681-4, clause The area of application of this PTV is entirely or partially covered by the intended use included in the harmonized standard NBN EN This PTV imposes additional application requirements and/or provisions for an area of application that is more specifically defined or delineated. Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements PTV p. 8/17 Version 1.0 dated

10 The requirements included in this PTV for the elastomeric seals - cast polyurethane sealing elements for the pipe joint used in water and drainage applications respond to needs determined by the various interested parties according to local construction technologies and customs Circulars COPRO can supplement this PTV with one or more circulars forming an integral part of this PTV. 2.4 REFERENCE DOCUMENTS Product standards The applicable product standard is NBN EN Tenders There aren t any applicable tenders Test documents ISO ISO 48 ISO 37 ISO ISO 188 ISO 9691 ISO ISO 1817 ISO ISO Rubber - Tolerances for products - Part 1: Dimensional tolerances Rubber, vulcanized or thermoplastic - Determination of hardness (hardness between 10 IRHD and 100 IRHD) Rubber, vulcanized or thermoplastic - Determination of tensile stress-strain properties Rubber, vulcanized or thermoplastic - Determination of compression set - Part 1: At ambient or elevated temperatures Rubber, vulcanized or thermoplastic - Accelerated ageing and heat resistance tests Rubber - Recommendations for the workmanship of pipe joint rings - Description and classification of imperfections Rubber, vulcanized or thermoplastic - Determination of compression set - Part 2: At low temperatures Rubber, vulcanized or thermoplastic - Determination of the effect of liquids Rubber, vulcanized or thermoplastic - Resistance to ozone cracking - Part 1: Static and dynamic strain testing Rubber, vulcanized or thermoplastic - Determination of stress relaxation in compression - Part 1: Testing at constant temperature PTV Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements Version 1.0 dated page 9/17

11 ISO 3387 ISO 4649 ISO 34-2 Rubber - Determination of crystallization effects by hardness measurements Rubber, vulcanized or thermoplastic - Determination of abrasion resistance using a rotating cylindrical drum device Rubber, vulcanized or thermoplastic - Determination of tear strength - Part 2: Small (Delft) test pieces Other There aren t any other applicable reference documents. Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements PTV p. 10/17 Version 1.0 dated

12 3 PRESCRIPTIONS 3.1 PRODUCTION UNIT AND EQUIPMENT There aren t any requirements for the production unit and the equipment. 3.2 RAW MATERIALS General The materials shall be free of any substances which may have a deleterious effect on the fluid being conveyed, or on the life of the seal, or on the pipe or fitting For cold and hot potable water applications, the materials shall not impair the quality of the water under the conditions of use. The materials shall comply with the national requirements in the country of use. 3.3 PRODUCTION PROCESS There aren t any requirements for the production process. 3.4 ELASTOMERIC SEALS General The elastomeric seals cast polyurethane sealing elements meets all the obligatory requirements set out in articles to and voluntary the additional requirements set out in article If the seal meets the optional requirement as specified in article 3.4.9, they shall be appropriately marked according clause The supplier shall in each case declare the performance for the characteristics set out in articles to for the elastomeric seals cast polyurethane sealing elements for pipe joints used in water and drainage applications. The supplier shall also declare the performance for the additional characteristic set out in article for the elastomeric seals cast polyurethane sealing elements for pipe joints used in water and drainage applications, if it is applicable. If it concerns an essential characteristic, the supplier shall declare this on its Declaration Of Performance Dimensional tolerances (obligatory) See NBN EN 681-4, article The tolerance for the length is ± 1 %. PTV Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements Version 1.0 dated page 11/17

13 3.4.3 Imperfections and defects (obligatory) See NBN EN 681-4, article Hardness (obligatory) See NBN EN 681-4, article Tensile strength and elongation at break (obligatory) See NBN EN 681-4, article Compression set in air (obligatory) See NBN EN 681-4, article Accelerated ageing in air (obligatory) See NBN EN 681-4, article Stress relaxation in compression (obligatory) See NBN EN 681-4, article High chemical resistance (voluntary) When tested according clause 4.3, the following maximum levels may not be exceeded: Property Unit Requirement V 7 % 5 IRHD 7 IRHD 10 IRHD 7/7 IRHD 5 In this context is: V 7: relative change in volume as % after depositing the test fluid for seven days at (23 ± 2) C. IRHD 7: change in IRHD hardness after depositing in the test fluid for seven days at (23 ± 2 ) C. IRHD 7/7: change in IRHD hardness after depositing in the test fluid for seven days at (23 ± 2) C and then drying out for seven days at normal temperature. Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements PTV p. 12/17 Version 1.0 dated

14 3.5 CLASSIFICATION Classification The elastomeric seals cast polyurethane sealing elements for which the performance for following characteristics complies with the prescriptions of the clause mentioned will be categorized as follows: High chemical resistance clause 3.4.9: HC. PTV Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements Version 1.0 dated page 13/17

15 4 TEST METHODS 4.1 SAMPLING Sampling See NBN EN 681-4, article SAMPLE PREPARATION Sample preparation See NBN EN 681-4, article Test temperature See NBN EN 681-4, article High chemical resistance Aim and principle This test is used to determine the resistance of the seal to environments with ph0 and ph14. The principle is that a piece of the seal are conditioned at ph0 and ph14 for a certain time and then the change in volume and the change in hardness are determined. Also the change in hardness is measured after conditioning a piece of the seal at ph0 and ph14 for a certain time and the conditioning the test piece for seven days at specific conditions for air-drying Instruments See ISO 1817, article 3.1 and 3.3. See ISO 48, article 5. Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements PTV p. 14/17 Version 1.0 dated

16 4.3.3 Sample preparation The test samples for the determination of the change in volume shall have 1 of the following dimensions in mm: Cylinder (diameter x height): (13± 0,5) x (6,3 ±0,3), with parallel end faces, Cuboid (11,5 ± 0,5) x (11,5 ± 0,5) x (6,3 ± 0,3). The test samples for the determination of the change in hardness shall be according ISO 48, article Method V 7: Measure the dimensions of the test sample and calculate the volume. The volume shall be determined at 0,005 cm³ => V 0; Expose the test samples to sulphuric acid (ph level about 0) and caustic soda (ph level about 14) over 168 hours at a temperature of 23 ± 2 C; Remove the test samples out of the test fluid and measure the dimensions within 5 minutes after removal out of the test fluid. Calculate the volume V 1 at 0,005 cm³. IRHD 7: Measure the IRHD of the test samples according ISO 48 = IRHD 0. Method M is referred. Another method of ISO 48 can be accepted, but in case of doubt, method M is used for reference method; Expose the test samples to sulphuric acid (ph level about 0) and caustic soda (ph level about 14) over 168 hours at a temperature of 23 ± 2 C; Remove the test samples out of the test fluid and measure the IRHD according ISO 48 within 5 minutes after removal out of the test fluid => IRHD 1. The method of ISO 48 used before exposure to the test fluid shall be used after exposure. IRHD 7/7: Measure the IRHD of the test samples according ISO 48=> IRHD 2. Method M is referred. Another method of ISO 48 can be accepted, but in case of doubt, method M is used for reference method; Expose the test samples to sulphuric acid (ph level about 0) and caustic soda (ph level about 14) over 168 hours at a temperature of 23 ± 2 C; Remove the test samples out of the test fluid and dry them out for seven days at a standard atmosphere 23/50 class 2 according NBN EN ISO 291; Remove the test samples and measure the IRHD according ISO 48 within 5 minutes after removal out of the drying conditions => IRHD 3. The method of ISO 48 used before exposure to the test fluid shall be used after exposure and drying; PTV Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements Version 1.0 dated page 15/17

17 If possible, the determination of IRHD 1 and IRHD 3 can be done on the same test samples. Then IRHD 0 and IRHD 2 are the same Result The result V 7 is calculated as follows: V 7 = abs((v 1-V 0)/V 0) * 100 %; The result IRHD 7 is calculated as follows: abs(irhd 1-IRHD 0); The result IRHD 7/7 is calculated as follows: abs(irhd 3-IRHD 2) Test report The test report sets out at least: - the details of the laboratory, - the details and identification of the sample, - a description of the packaging in which the sample was delivered (possible damage, et cetera), - the start-date and the end-date of the test, - V 0, V 1 and V 7, - IRHD 0, IRHD 1, IRHD 2, IRHD 3, IRHD 7 and IRHD 7/7, - a reference to PTV , clause Each test report is supplemented by an assessment of conformity to the requirements. Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements PTV p. 16/17 Version 1.0 dated

18 5 PRODUCT IDENTIFICATION 5.1 PRODUCT NAME Official name Elastomeric seal cast polyurethane sealing elements Commercial name The commercial is freely chosen by the supplier insofar as it does not lead to confusion or clash with the official name. 5.2 IDENTIFICATION Delivery modes The seal is cast directly on the pipe or fitting Marking Since the seal is cast directly on the pipe or fitting, the seals can t be marked. Therefore, the marking for the seal shall be added to the marking of the pipe or fitting. This marking shall be as follows if not covered by the requirements of another standard implementing PTV : - referral to this PTV , - the applicable classification according clause 3.5 of this PTV PTV Technical Prescriptions Elastomeric Seals - Part 4: Cast polyurethane sealing elements Version 1.0 dated page 17/17