FprEN 681-1

Elastomeric seals - Material requirements for pipe joint seals used in water and drainage applications - Part 1: Vulcanized rubber

This standard specifies requirements of materials used for vulcanized rubber seals in:
-   Cold water (T ≤ 50 °C);
-   Cold water (T ≤ 50 °C) and intermittently hot water (T ≤ 95 °C);
-   Cold water (T ≤ 50 °C) and continuously hot water (T ≤ 110 °C).
The different designations of seals specified are defined according to their type, application and requirements (see Table 1).
This standard defines requirements for seals, partially defining the properties of the vulcanized rubber material as a performance indicator of the finished seal. 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, seal geometry, pipe system material and pipe joint design. This standard should be used where appropriate with product standards which specify performance requirements for joints.
It is applicable to elastomeric components of composite or non composite seals.
In case of composite seals for materials of hardness ranges from 55 IRHD to 95 IRHD the requirements for elongation at break, compression set and stress relaxation apply only when the material is participating in the sealing function, or the long term stability of the seal.
Joint seals made with an enclosed void as part of their design are included in the scope of this European Standard.

Elastomer-Dichtungen - Werkstoff-Anforderungen für Rohrleitungs-Dichtungen für Anwendungen in der Wasserversorgung und Entwässerung - Teil 1: Vulkanisierter Gummi

Garnitures d'étanchéité en caoutchouc - Spécification des matériaux pour garnitures d'étanchéité pour joints de canalisations utilisées dans le domaine de l'eau et de l'évacuation - Partie 1 : Caoutchouc vulcanisé

Elastomerna tesnila - Zahteve za material za tesnila za uporabo v napeljavah za vodo in kanalizacijo - 1. del: Vulkanizirana guma

General Information

• Status: Not Published
• Publication Date: 26-Nov-2017
• Withdrawal Date: 27-May-2018
• ICS: 23.040.05 - Pipeline and its parts for external sewage systems
• ICS: 23.040.80 - Seals for pipe and hose assemblies
• Technical Committee: CEN/TC 208 - Elastomeric seals for joints in pipework and pipelines
• Drafting Committee: CEN/TC 208/WG 1 - Elastomeric seals for hot and cold water and waste water
• Current Stage: 5098 - Decision to abandon - Formal Approval
• Completion Date: 28-Jul-2021
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 93/38/EEC - Procurement procedures of entities operating in the water, energy, transport and telecommunications sectors
• Mandate: M/131 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on pipes, tanks and ancillaries, not in contact with water intended for human consumption
• Mandate: M/BC/CEN/88/15 - Standardization request to CEN/CENELEC in the field of Water supply, drainage and sewerage
• Ref Project: kSIST FprEN 681-1:2017 - Elastomeric seals - Material requirements for pipe joint seals used in water and drainage applications - Part 1: Vulcanized rubber

Relations

• Revises: EN 681-1:1996 - Elastomeric seals - Materials requirements for pipe joint seals used in water and drainage applications - Part 1: Vulcanized rubber
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 681-1:2016
01-september-2016
Elastomerna tesnila - Zahteve za material za tesnila za uporabo v napeljavah za
vodo in kanalizacijo - 1. del: Vulkanizirana guma
Elastomeric seals - Material requirements for pipe joint seals used in water and drainage
applications - Part 1: Vulcanized rubber
Elastomer-Dichtungen - Werkstoff-Anforderungen für Rohrleitungs-Dichtungen für
Anwendungen in der Wasserversorgung und Entwässerung - Teil 1: Elastomere
Garnitures d'étanchéité en caoutchouc - Spécification des matériaux pour garnitures
d'étanchéité pour joints de canalisations utilisées dans le domaine de l'eau et de
l'évacuation - Partie 1 : Caoutchouc vulcanisé
Ta slovenski standard je istoveten z: prEN 681-1
ICS:
23.040.80 Tesnila za cevne zveze Seals for pipe and hose
assemblies
oSIST prEN 681-1:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 681-1:2016
oSIST prEN 681-1:2016
DRAFT
EUROPEAN STANDARD
prEN 681-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2016
ICS 23.040.80 Will supersede EN 681-1:1996
English Version
Elastomeric seals - Material requirements for pipe joint
seals used in water and drainage applications - Part 1:
Vulcanized rubber
Garnitures d'étanchéité en caoutchouc - Spécification Elastomer-Dichtungen - Werkstoff-Anforderungen für
des matériaux pour garnitures d'étanchéité pour joints Rohrleitungs-Dichtungen für Anwendungen in der
de canalisations utilisées dans le domaine de l'eau et de Wasserversorgung und Entwässerung - Teil 1:
l'évacuation - Partie 1 : Caoutchouc vulcanisé Elastomere
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 208.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN 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 CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 681-1:2016 E
worldwide for CEN national Members.

oSIST prEN 681-1:2016
prEN 681-1:2016 (E)
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Application . 6
5 Requirements . 7
5.1 Materials . 7
5.1.1 General . 7
5.1.2 Effect on water quality . 7
5.1.3 Material requirements . 8
5.2 General requirements for seal products . 11
5.2.1 Dimensional tolerances . 11
5.2.2 Imperfections and defects . 11
6 Test methods . 11
6.1 Test Samples . 11
6.2 Test conditions . 12
6.3 Hardness . 12
6.4 Tensile strength and elongation at break . 12
6.5 Compression set in air . 12
6.5.1 Compression set at 23 °C, 70 °C and 125 °C . 12
6.5.2 Compression set at – 10 °C and – 25 °C . 12
6.6 Accelerated ageing in air . 12
6.7 Stress relaxation in compression . 12
6.8 Volume change in water . 13
6.9 Ozone resistance . 13
6.10 Tear strength for joint seals for hot water supply . 13
6.11 Compression set in water . 13
6.12 Strength of spliced joints . 13
6.13 Volume change in oil . 13
6.14 Hardness change at – 25 °C . 13
7 Assessment and verification of constancy of performance – AVCP. 14
7.1 General . 14
7.2 Type testing . 14
7.2.1 General . 14
7.2.2 Test samples, testing and compliance criteria . 14
7.2.3 Test reports . 16
7.3 Factory production control (FPC) . 16
7.3.1 General . 16
7.3.2 Requirements . 16
7.3.3 Product specific requirements . 18
8 Designation. 19
9 Marking and labelling . 19
oSIST prEN 681-1:2016
prEN 681-1:2016 (E)
Annex A (normative) Determination of stress relaxation in tension . 20
A.1 Principle . 20
A.2 Apparatus . 20
A.3 Test pieces . 20
A.4 Test conditions . 20
A.5 Procedure . 20
Annex B (normative) Determination of compression set in hot water at 110 °C . 22
B.1 Principle . 22
B.2 Apparatus . 22
B.3 Test pieces . 22
B.4 Procedure . 23
Annex C (normative) Determination of splice strength . 28
C.1 Principle . 28
C.2 Test pieces . 28
C.3 Procedure . 28
Annex D (informative) Guidance on storage of seals . 29
Annex ZA (informative) Relationship of this European Standard with Regulation (EU)
No.305/2011 . 30
ZA.1 Scope and relevant characteristics . 30
ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) . 31
ZA.3 Assignment of AVCP tasks . 32
Bibliography . 33

oSIST prEN 681-1:2016
prEN 681-1:2016 (E)
European foreword
This document (prEN 681-1:2016) 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 document is currently submitted to the CEN Enquiry.
This document will supersede EN 681-1:1996.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of Construction Products
Regulation (305/2011/EU).
For relationship with EU Construction Products Regulation (305/2011/EU), see informative Annex ZA
which is an integral part of this document.
The EN 681 series, Elastomeric seals - Material requirements for pipe joint seals used in water and
drainage applications consists of four parts:
Part 1: Vulcanized rubber
Part 2: Thermoplastic elastomers
Part 3: Cellular materials of vulcanized rubber
Part 4: Cast polyurethane sealing elements
...