EN 549:2019
(Main)Rubber materials for seals and diaphragms for gas appliances and gas equipment
General Information
- 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.
- Status
- Withdrawn
- Publication Date
- 02-Jul-2019
- Withdrawal Date
- 08-Sep-2026
- Technical Committee
- CEN/TC 208 - Elastomeric seals for joints in pipework and pipelines
- Drafting Committee
- CEN/TC 208 - Elastomeric seals for joints in pipework and pipelines
- Current Stage
- 9960 - Withdrawal effective - Withdrawal
- Start Date
- 03-May-2023
- Completion Date
- 09-Sep-2026
- Directive
- Not Harmonized2009/142/EC - Appliances burning gaseous fuels
Relations
- Replaces
EN 549:1994 - Rubber materials for seals and diaphragms for gas appliances and gas equipment - Effective Date
- 22-Jul-2015
- Merged Into
EN 549:2019+A1:2023 - Rubber materials for seals and diaphragms for gas appliances and gas equipment - Effective Date
- 15-Mar-2023
- Effective Date
- 25-Aug-2026
- Effective Date
- 25-Aug-2026
- Effective Date
- 25-Aug-2026
- Effective Date
- 25-Aug-2026
- Effective Date
- 09-Feb-2026
- Refers
ISO 188:2011 - Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests - Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 09-Feb-2026
- Effective Date
- 28-Jan-2026
- Refers
EN 4855-02:2020 - Aerospace series - ECO efficiency of catering equipment - Part 02: Oven equipment - Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
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Frequently Asked Questions
EN 549:2019 is a standard published by the European Committee for Standardization (CEN). Its full title is "Rubber materials for seals and diaphragms for gas appliances and gas equipment". This standard covers: 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.
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.
EN 549:2019 is classified under the following ICS (International Classification for Standards) categories: 83.140.50 - Seals. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 549:2019 has the following relationships with other standards: It is inter standard links to EN 549:1994, EN 549:2019+A1:2023, ISO 815-1:2014, ISO 1817:2015, ISO 23529:2016, ISO 815-2:2014, ISO 37:2017, ISO 188:2011, ISO 48-2:2018, ISO 1407:2011, ISO 1431-1:2012, ISO 4650:2012, EN ISO 1183-1:2019, EN 4855-02:2020, EN ISO 9856:2016. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 549:2019 is associated with the following European legislation: EU Directives/Regulations: 2009/142/EC, 305/2011; Standardization Mandates: M/131, M/BC/CEN/89/6. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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