EN 2836:2012
(Main)Aerospace series - Chloroprene rubber (CR) - Heat resistance - Hardness 50 IRHD
Aerospace series - Chloroprene rubber (CR) - Heat resistance - Hardness 50 IRHD
This European Standard specifies the properties of chloroprene rubber (CR) ) heat resistant, hardness 50 IRHD, for aerospace applications.
Luft- und Raumfahrt - Chloropren-Elastomer (CR) - Wärmebeständig - Härte 50 IRHD
Diese Europäische Norm legt Eigenschaften von Chloropren-Elastomer (CR) ) wärmebeständig, Härte 50 IRHD, zur Anwendung in der Luft- und Raumfahrt fest.
Série aérospatiale - Élastomère chloroprène (CR) - Résistant à la chaleur - Dureté 50 DIDC
La présente Norme européenne spécifie les caractéristiques de l’élastomère chloroprène (CR) ) résistant à la chaleur, dureté 50 DIDC, pour les applications aérospatiales.
Aeronavtika - Kloroprenska guma - Toplotno odporna - Trdota 50 IRHD
Ta evropski standard določa lastnosti toplotno odporne kloroprenske gume (CR) s trdnostjo 50 IRHD za uporabo v aeronavtiki.
General Information
Overview
EN 2836:2012 is a CEN aerospace series standard that specifies the required properties of chloroprene rubber (CR) - heat resistant, hardness 50 IRHD - intended for aerospace applications. The standard defines material performance limits, test methods and batch acceptance criteria to ensure CR elastomers meet the environmental, mechanical and ageing demands typical in aircraft and aerospace systems.
Key topics and requirements
- Material identity: Chloroprene rubber (symbol CR per ISO 1629), heat resistant, nominal hardness 50 IRHD.
- Service temperature:
- Continuous: −40 °C to 120 °C
- Intermittent: −40 °C to 150 °C
- Mechanical properties (qualification values shown in the standard):
- Tensile strength: minimum 12 MPa
- Elongation at break: minimum 400%
- Aging and resistance:
- Ozone resistance: test at 50 ± 5 pphm ozone, 20% elongation, 70 h at 30 °C - no cracking
- Compression set: after 24 h at 125 °C - ≤ 40%
- Corrosion and adhesion on metals: 168 h at 100 °C - no corrosion, no adhesion
- Dimensional/physical control:
- Density batch tolerance: value shall not differ from qualification by more than 0.02 Mg/m3
- Testing and conformity:
- The standard references test and specification documents such as EN 3207 (rubber compounds technical specification) and ISO 1817 (effect of liquids).
- For qualification all tests are required; a subset of tests (marked for batch acceptance) is required for production batches.
Applications
EN 2836:2012 is intended for CR elastomer components used where atmospheric ageing and ozone resistance are critical and where moderate resistance to petroleum-based fuels and lubricants is acceptable. Typical aerospace uses include:
- Seals and O-rings
- Gaskets and diaphragms
- Hoses and flexible connections
- Vibration isolation components where heat resistance and long-term weathering performance are required
Who should use this standard
- Aerospace material engineers and specifiers choosing elastomers for airframe, engine accessory or environmental control systems
- Rubber compound developers and manufacturers supplying CR compounds at 50 IRHD
- Quality, test and certification laboratories performing qualification and batch acceptance testing
- Procurement and compliance teams verifying supplier conformity to aerospace material requirements
Related standards
- EN 3207 - Aerospace series: Rubber compounds - Technical specification
- ISO 1817 - Rubber, vulcanized or thermoplastic: Determination of the effect of liquids
- ISO 1629 - Rubber nomenclature
Keywords: EN 2836:2012, chloroprene rubber, CR, 50 IRHD, heat resistance, aerospace rubber standard, ozone resistance, EN 3207, ISO 1817.
Frequently Asked Questions
EN 2836:2012 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Chloroprene rubber (CR) - Heat resistance - Hardness 50 IRHD". This standard covers: This European Standard specifies the properties of chloroprene rubber (CR) ) heat resistant, hardness 50 IRHD, for aerospace applications.
This European Standard specifies the properties of chloroprene rubber (CR) ) heat resistant, hardness 50 IRHD, for aerospace applications.
EN 2836:2012 is classified under the following ICS (International Classification for Standards) categories: 49.025.40 - Rubber and plastics. The ICS classification helps identify the subject area and facilitates finding related standards.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aeronavtika - Kloroprenska guma - Toplotno odporna - Trdota 50 IRHDLuft- und Raumfahrt - Chloropren-Elastomer (CR) - Wärmebeständig - Härte 50 IRHDSérie aérospatiale - Élastomère chloroprène (CR) - Résistant à la chaleur - Dureté 50 DIDCAerospace series - Chloroprene rubber (CR) - Heat resistance - Hardness 50 IRHD49.025.40Guma in polimerni materialiRubber and plasticsICS:Ta slovenski standard je istoveten z:EN 2836:2012SIST EN 2836:2012en,de01-julij-2012SIST EN 2836:2012SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2836
March 2012 ICS 49.025.40 English Version
Aerospace series - Chloroprene rubber (CR) - Heat resistance -Hardness 50 IRHD
Série aérospatiale - Élastomère chloroprène (CR) - Résistant à la chaleur - Dureté 50 DIDC
Luft- und Raumfahrt - Chloropren-Elastomer (CR) - Wärmebeständig - Härte 50 IRHD This European Standard was approved by CEN on 21 February 2012.
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. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists 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, 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
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