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BS EN 682:2002

Current
Current

The latest, up-to-date edition.

Elastomeric seals. Materials requirements for seals used in pipes and fi ttings carrying gas and hydrocarbon fluids
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

03-06-2006

Foreword
1 Scope
2 Normative references
3 Classification
4 Requirements
   4.1 Materials
   4.2 Finished seal requirements
        4.2.1 Dimensional tolerances
        4.2.2 Imperfections and defects
        4.2.3 Hardness
        4.2.4 Tensile strength and elongation at break
        4.2.5 Compression set in air
        4.2.6 Accelerated ageing in air
        4.2.7 Stress relaxation in compression
        4.2.8 Volume change in liquid B
        4.2.9 Volume change in oil
        4.2.10 Ozone resistance
        4.2.11 Compression set at -15 degree C
5 Test pieces and temperature
   5.1 Preparation of test pieces
   5.2 Test temperature
6 Factory production control
7 Factory product control tests
   7.1 Sampling
   7.2 Routine tests
   7.3 Type tests
8 Storage
9 Designation
10 Marking and labelling
Annex A (informative) Guidance on storage of seals
Annex ZA (informative) Clauses of this European Standard
         addressing the provisions of the EU Construction
         Products Directive
Bibliography

Specifies requirements for elastomeric materials used in seals for supply pipes and fittings, ancillaries and valves at operating temperatures in general from -5 degree C up to 50 degree C and in special cases from -15 degree C up to 50 degree C, for the following: - gaseous fuel (manufactured, natural and liquefied petroleum gas [LPG] in gaseous phase); - hydrocarbon fluids with aromatic content up to 30 % (V/V), including LPG in liquid phase.

This European Standard specifies requirements for elastomeric materials used in seals for supply pipes and fittings, ancillaries and valves at operating temperatures in general from - 5 °G up to 50 °G and in special cases from - 15 °G up to 50 °G, for the following: General applications (see Table 4, type G) gaseous fuel (manufactured, natural and liquefied petroleum gas [LPG] in gaseous phase); hydrocarbon fluids with aromatic content up to 30 % (V/V), including LPG in liquid phase. Special applications (see Table 4, type H) Materials suitable for carrying gaseous fuels containing gas condensates and hydrocarbon fluids of unrestricted aromatic content. 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 European Standard should be used where appropriate with product standards which specify performance requirements for joints. This European Standard is applicable to joint seals for all pipeline materials including iron, steel, copper and plastics. In the case of composite seals requirements in 4.2.8 and 4.2.9 apply only when the materials used for any elastomeric parts come into contact with gaseous fuel or hydrocarbon fluid. Elongation at break, tensile strength, compression set and stress relaxation requirements for materials of hardness categories 80 and 90 apply only when they constitute that part of the seal which participates directly in the sealing function or in long term stability. This standard is not applicable to the following: seals made from cellular materials; seals with enclosed voids as part of their design; seals with requirements of resistance to flame or to thermal stress; seals which contain splices joining pre-vulcanized profile ends.

Committee
PRI/70
DevelopmentNote
Together with BS EN 681-2 supersedes BS 2494(1990) Supersedes 92/38916 DC (04/2002)
DocumentType
Standard
Pages
22
PublisherName
British Standards Institution
Status
Current
Supersedes

ISO 3951:1989 Sampling procedures and charts for inspection by variables for percent nonconforming
ISO 188:2011 Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests
ISO 2230:2002 Rubber products — Guidelines for storage
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
EN ISO 9001:2015 Quality management systems - Requirements (ISO 9001:2015)
ISO 9691:1992 Rubber — Recommendations for the workmanship of pipe joint rings — Description and classification of imperfections
ISO 4661-1:1993 Rubber, vulcanized or thermoplastic Preparation of samples and test pieces Part 1: Physical tests
ISO 3384:2005 Rubber, vulcanized or thermoplastic Determination of stress relaxation in compression at ambient and at elevated temperatures
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 471:1995 Rubber Temperatures, humidities and times for conditioning and testing
ISO 48:2010 Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD)
ISO 1817:2015 Rubber, vulcanized or thermoplastic Determination of the effect of liquids

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