1、BRITISH STANDARDBS EN 681-3:2000Incorporating Amendments Nos. 1 and 2Elastomeric seals Materials requirements for pipe joint seals used in water and drainage applications Part 3: Cellular materials of vulcanized rubberThe European Standard EN 681-3:2000, with the incorporation of amendments A1:2002
2、and A2:2005, has the status of a British StandardICS 23.040.80g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 681-3:2000This British Standard
3、was published under the authority of the Standards Policy and Strategy Committee on 15 September 2000 BSI 7 March 2006ISBN 0 580 36221 3National forewordThis British Standard is the official English language version of EN 681-3:2000, including amendments A1:2002 and A2:2005.The start and finish of t
4、ext introduced by CEN amendment is indicated in the text by tags . Tags indicating changes to CEN text carry the number of the CEN amendment. For example text altered by CEN amendment A1 is indicated by .The UK participation in its preparation was entrusted to Technical Committee PRI/70, Elastomeric
5、 seals, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under
6、 the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for their correct appl
7、ication.Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; mo
8、nitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 21 and a back cover.The BSI copyright date displayed in this document indicates when the document was last i
9、ssued.Amendments issued since publicationAmd. No. Date Comments13704 26 August 2002 See national foreword15839 March 2006 See national forewordEN 681-3 July 2000 + A1 + A2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM March 2002 August 2005 ICS 23.040.80 English version Elastomeric seals Materia
10、ls requirements for pipe joint seals used in water and drainage applications Part 3: Cellular materials of vulcanized rubber (includes amendments A1:2002 and A2:2005) Garnitures dtanchit en caoutchouc Spcification des matriaux pour garnitures detanchit pour joints de canalisation utiliss dans le dom
11、aine de leau et de lvacuation Partie 3: Matriaux cellulaires en caoutchouc vulcanis (inclut les amendements A1:2002 et A2:2005) Elastomer-Dichtungen Werkstoff-Anforderungen fr Rohrleitungs-Dichtungen fr Anwendungen in der Wasserversorgung und Entwsserung Teil 3: Zellige Werkstoffe aus vulkanisiertem
12、 Kautschuk (enthlt nderungen A1:2002 und A2:2005) This European Standard was approved by CEN on 3 June 2000. Amendment A1 was approved by CEN on 25 February 2002 and amendment A2 was approved by CEN on 14 July 2005. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stip
13、ulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard e
14、xists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards
15、bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE
16、 FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels 2000 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 681-3:2000 + A1:2002 + A2:2005 EPage 2
17、EN 681-3:2000 Contents Page Foreword 3 1 Scope 5 2 Normative references 5 3 Requirements 6 4 Test pieces and temperature 11 5 Factory production control 11 6 Factory product control tests 11 7 Storage 12 8 Designation 12 9 Marking and labelling 13 Annex A (normative) Determination of compression str
18、ess 14 Annex B (normative) Determination of splice strength 16 Annex C (informative) Guidance on storage of seals 17 Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Construction Products Directive 18 Page 3 EN 681-3:2000 Foreword This European Standard ha
19、s been prepared by Technical Committee CEN/TC 208, Elastomeric seals for joints in pipework and pipelines, the Secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by
20、January 2001, and conflicting national standards shall be withdrawn at the latest by January 2001. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denma
21、rk, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. This standard should be used where appropriate with product standards which specify performance requirements for joints. A European Standard wi
22、ll be prepared for microbiological deterioration requirements and when published it is intended that materials comply with the requirements of that standard. It is recommended that third party inspection be carried out at least twice a year without previous notice, the assessment body complying with
23、 the requirements of EN 45011 and EN 45012 or equivalent. Part 1 of this standard is based on ISO 4633 and ISO 9631 bringing these two sets of requirements (for cold and hot water respectively) under one specification. The major changes from ISO 4633 and ISO 9631 have been to incorporate requirement
24、s for effect on water quality and ozone resistance. The emphasis in respect of low temperature testing has moved away from hardness measurement to compression set, which is more discriminating. Part 2 has been prepared in response to requests from CEN/TC 155 for a material specification for thermopl
25、astic elastomer seals for use in conjunction with non-pressure thermoplastic pipe systems. Part 4 has been prepared in response to requests from those sections of the pipeline industry which employ cast polyurethane seals. This standard should be used where appropriate with product standards which s
26、pecify performance requirements for joints. Seals and pipe joints using cellular materials of vulcanized rubber should be designed and tested to take into account the different requirements compared with those specified in Part 1 of this standard. The Annexes A and B are normative. Annex C is inform
27、ative. Page 4 EN 681-3:2000 Foreword to amendment A1 This document EN 681-3:2000/A1:2002 has been prepared by Technical Committee CEN/TC 208, Elastomeric seals for joints in pipework and pipelines, the Secretariat of which is held by BSI. This European Standard shall be given the status of a nationa
28、l standard, either by publication of an identical text or by endorsement, at the latest by September 2002, and conflicting national standards shall be withdrawn at the latest by December 2003. This document has been prepared under a mandate given to CEN by the European Commission and the European Fr
29、ee Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countrie
30、s are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Foreword to amendment A2 This document (EN 681-3
31、:2000/A2:2005) has been prepared by Technical Committee CEN/TC 208 “Elastomeric seals for joints in pipework and pipelines”, the secretariat of which is held by BSI. This Amendment to the European Standard EN 681-3:2000 shall be given the status of a national standard, either by publication of an id
32、entical text or by endorsement, at the latest by February 2006, and conflicting national standards shall be withdrawn at the latest by February 2006. This document amends EN 681-3:2000 including amendment A1:2002. According to the CEN/CENELEC Internal Regulations, the national standards organization
33、s of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia,
34、 Spain, Sweden, Switzerland and United Kingdom. Page 5 EN 681-3:2000 1 ScopeThis standard specifies requirements for materials used in vulcanized rubber seals of cellular materials for non-pressurized drainage, sewerage and rainwater systems and non-pressure non-potable water supply (continuous flow
35、 up to 45 C). General requirements for the finished joint seals are also given; any additional requirements called for by the particular application are specified in the relevant product standards taking into account that the performance of pipe joints is a function of the seal material properties,
36、seal geometry and pipe joint design. This standard is applicable to joint seals for pipeline materials of vitrified clay, fibre cement, concrete, reinforced concrete, plastics and glass-reinforced plastics. Joint seals made with an enclosed void as part of their design are included in the scope of t
37、his European Standard. 2 Normative referencesThis European Standard incorporates by dated or undated references, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent
38、amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. ISO 37, Rubber, vulcanized or thermoplastic - Determination of tensile stre
39、ss-strain properties ISO 188, Rubber, vulcanized - Accelerated ageing or heat-resistance tests ISO 471, Rubber - Temperatures, humidities and times for conditioning and testing ISO 815, Rubber, vulcanized or thermoplastic - Determination of compression set at ambient, elevated or low temperatures IS
40、O 1431-1, Rubber, vulcanized or thermoplastic - Resistance to ozone cracking - Part 1: Static strain test ISO 1817, Rubber, vulcanized - Determination of the effect of liquids ISO 2859-1, Sampling procedures for inspection by attributes - Part 1: Sampling plans indexed by acceptable quality level (A
41、QL) for lot-by-lot inspection ISO 3302-1, Rubber - Tolerances for products - Part 1: Dimensional tolerances Page 6 EN 681-3:2000 ISO 3384:1999, Rubber, vulcanized or thermoplastic - Determination of stress relaxation in compression at ambient and at elevated temperatures ISO 3951, Sampling procedure
42、s and charts for inspection by variables for percent nonconforming ISO 4661-1, Rubber, vulcanized or thermoplastic - Preparation of samples and test pieces - Part 1: Physical tests ISO 9691:1992, Rubber - Recommendations for the workmanship of pipe joint rings - Description and classification of imp
43、erfections !Text deleted“ 3 Requirements 3.1 Materials 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 sealing ring, or on the pipe or fitting. 3.2 Finished seal requirements 3.2.1 Dimensional tolerances Tolerances s
44、hall be specified from Class E2 of ISO 3302-1. 3.2.2 Imperfections and defects The seals shall be free of defects or irregularities which could affect their function. Classification of imperfections shall be according to ISO 9691:1992, as follows: - surface imperfections in zones involved in the sea
45、ling function as described in 4.1.1 of ISO 9691:1992 shall be considered as defects. - surface imperfections in zones not involved in the sealing function as described in 4.1.2.1b) of ISO 9691:1992 shall not be considered as defects. NOTE 1: Major surface imperfections in zones not involved in the s
46、ealing function as described in 4.1.2.1a) of ISO 9691:1992 could be considered as defects. This should be agreed between the interested parties; the acceptance criteria depend upon the seals type or design respectively. Page 7 EN 681-3:2000 NOTE 2: Internal imperfections as described in clause 4.2 o
47、f ISO 9691:1992 could be considered as defects. The compressive force can be determined according to ISO 77431). The acceptable limiting values of the compressive force should be agreed between the interested parties; they depend upon the seals type or design respectively. 3.2.3 Compression stressWh
48、en determined by the method specified in Annex A, at 25 % deformation, the compression stress shall comply with the requirements in table 1. The measurement shall be carried out in the direction of compression of the seal in service. 3.2.4 Tensile strength and elongation at breakThe tensile strength
49、 and elongation at break shall be determined by the method specified in ISO 37. Dumb-bell shaped test pieces of types 1, 2, 3 or 4 shall be used. Type 2 is the preferred type. The test report shall state the dumb-bell type whenever type 2 is not used. The tensile strength and the elongation at break shall comply with the requirements given in table 1. 3.2.5 Compression set in air3.2.5.1 GeneralIf the test piece is taken from a seal, then the measurement shall be carried out as far as possible in the direction of compressio
