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  • Abstract:
    This document specifies requirements and associated test methods for rubber materials used in gas installations, gas equipment and gas appliances in contact with 1st, 2nd and 3rd family combustible gases as classified in EN 437:2018, additionally LPG, bio methane and bio LPG, in the same quality, are covered. It also establishes a classification based on temperature range and hardness. This document is applicable to materials from which homogeneous seals and homogeneous or reinforced diaphragms are manufactured. Since the dimensions and shape of the components differ from those of standard test pieces taken from sheet material as used for type testing of the rubber materials according to this document, tolerances have been made in the requirements specified by Annex A for the components with respect to those specified for standard test pieces. The range of operating temperatures covered by this document is -40 °C to +150 °C. For applications with potential condensation, this document is not applicable for silicon rubber, e. g. above 200 hPa (200 mbar) nominal pressure or at temperatures below 0 °C with 3rd family gases.
  • Document number:
    EN 549+A1
  • Issuing date:
  • Document type:
  • Title:
    Rubber materials for seals and diaphragms for gas appliances and gas equipment
  • Replaces:
    EN 549(2019-07); EN 549/prA1(2022-08)
  • Author:
    CEN/TC 208 Elastomeric seals for joints in pipework and pipelines
  • Search term:
    Ageing (materials); Ash contents; CE marking; Chemical hazards; Chemical properties; Classes; Classification; Classification systems; Control equipment; Definitions; Elastomers; Elongation; Explosion hazard; Extracts; Fire risks; Fuel gases; Gas fittings; Gas technology; Gaskets; Gas-powered devices; Hardness; Household equipment; Information; Infra-red; Life (durability); Lubricants; Materials; Mechanical properties; Membranes; Ozone resistance; Physical properties; Prefabricated parts; Pressure; Rubber packing ring; Rubber technology; Scope; Seals; Solvents; Specification (approval); Tear strength; Temperature; Temperature range; Testing; Vulcanized rubber
  • Application areas:
    15.05 Gasverbrauchseinrichtungen (entspr. EG-Richtlinie)
  • Hazards:
    AB Terminologische Festlegungen in Normen mit Arbeitsschutzbezug; CA Chemische Gefährdungen im Allgemeinen; FA Brand- und Explosionsgefährdungen im Allgemeinen
  • ICS:
    23.040.80 Seals for pipe and hose assemblies; 83.140.50 Seals
  • Price:
    74,00 EUR
  • Cross references:
    EN ISO 1183-1 (2019-04)<S>; ISO 37 (2017-11)<S>; ISO 48-2 (2018-08)<S>; ISO 188 (2011-10){historisch}<S>; ISO 815-1 (2014-09){historisch}<S>; ISO 815-2 (2014-11){historisch}<S>; ISO 1407 (2011-12){historisch}<S>; ISO 1431-1 (2012-08){historisch}<S>; ISO 1817 (2015-02){historisch}<S>; ISO 3384-1 (2019-08)<S>; ISO 4650 (2012-12)<S>; ISO 23529 (2016-11)<S>; EUV 2016/426 (2016-03-09)
  • Cited in:
    DIN EN 17613 (2023-08)<GLEITEND>
  • Identical with:
    DIN EN 549(2023-07)<IDT>; SN EN 549+A1(2023-05)<IDT>; SS-EN 549+A1(2023-05-08)<IDT>
  • Legislation:
    EUV 2016/426 (2016-03-09)<M>; Gasverbrennnungsgeräte-Verordnung
  • Update flag: