BS ISO 9631:2018
Current
The latest, up-to-date edition.
Rubber seals. Joint rings for pipelines for hot-water supply up to 110 °C. Specification for the material
Hardcopy , PDF
English
14-03-2018
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Requirements and test methods
6 Testing
7 Quality assurance
8 Storage
9 Designation
10 Marking and labelling
Annex A (normative) - Determination of splice strength
Annex B (normative) - Determination of compression set
in hot water at 110 degrees C for seals
Annex C (informative) - Quality assurance
Annex D (informative) - Guidance on storage of seals
Bibliography
Describes material requirements for vulcanized rubber seals for hot drinking and non-drinking water supply (up to 110 degrees C).
| Committee |
PRI/70
|
| DevelopmentNote |
Supersedes 98/126144 DC. (05/2005)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This document specifies material requirements for vulcanized rubber seals for hot drinking and non-drinking water supply (up to 110°C).
The different seal designations specified are defined according to seal type, seal application and the requirements for a particular seal (see Table2).
General requirements for 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, seal geometry and pipe joint design. This document is intended to be used where appropriate, in conjunction with product standards which specify performance requirements for joints.
This document is applicable to joint seals for use with all pipeline materials, including metals, clay, fibre cement, concrete, reinforced concrete, plastics and glass-reinforced plastics.
It is applicable to elastomeric components of composite and non-composite seals. In the case of composite seals made from materials with hardness ranging from 76IRHD to 95IRHD, the requirements for elongation at break, compression set and stress relaxation apply only when the material participates in the sealing function or contributes to the long-term stability of the seal.
The material requirements specified in this document are designed for long term performances and a potential lifetime of 50 years. The lifetime of a sealing depends not only on material performance but also on other parameters which are not defined in this document like the mounting design, the quality of assembly and the combination with operating conditions. Joint rings made from cellular rubber materials are not covered by this document.
| Standards | Relationship |
| ISO 9631:2003 | Identical |
| ISO 9631:2018 | Identical |
| ISO 3951-1:2013 | Sampling procedures for inspection by variables — Part 1: Specification for single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single quality characteristic and a single AQL |
| ISO 15510:2014 | Stainless steels — Chemical composition |
| ISO 23529:2016 | Rubber General procedures for preparing and conditioning test pieces for physical test methods |
| ISO 815-1:2014 | Rubber, vulcanized or thermoplastic Determination of compression set Part 1: At ambient or elevated temperatures |
| ISO 188:2011 | Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests |
| ISO 2230:2002 | Rubber products — Guidelines for storage |
| ISO 2285:2013 | Rubber, vulcanized or thermoplastic Determination of tension set under constant elongation, and of tension set, elongation and creep under constant tensile load |
| ISO 3384-1:2011 | Rubber, vulcanized or thermoplastic Determination of stress relaxation in compression Part 1: Testing at constant temperature |
| ISO 1431-1:2012 | Rubber, vulcanized or thermoplastic Resistance to ozone cracking Part 1: Static and dynamic strain testing |
| ISO 3302-1:2014 | Rubber — Tolerances for products — Part 1: Dimensional tolerances |
| ISO 9691:1992 | Rubber — Recommendations for the workmanship of pipe joint rings — Description and classification of imperfections |
| ISO 6914:2013 | Rubber, vulcanized or thermoplastic Determination of ageing characteristics by measurement of stress relaxation in tension |
| ISO 10508:2006 | Plastics piping systems for hot and cold water installations — Guidance for classification and design |
| ISO 9001:2015 | Quality management systems — Requirements |
| ISO 7743:2017 | Rubber, vulcanized or thermoplastic Determination of compression stress-strain properties |
| ISO 37:2017 | Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties |
| ISO 48:2010 | Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD) |
| EN 253:2009+A2:2015 | District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene |
| ISO 34-2:2015 | Rubber, vulcanized or thermoplastic Determination of tear strength Part 2: Small (Delft) test pieces |
| ISO 1629:2013 | Rubber and latices — Nomenclature |
| ISO 1817:2015 | Rubber, vulcanized or thermoplastic Determination of the effect of liquids |
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