Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Mineral oil resistant - Hardness 80 IRHD

This European Standard specifies the properties of acrylonitrile-butadiene rubber (NBR)  ), fuel and synthetic oil resistant, hardness 50 IRHD, for aerospace applications.

Luft- und Raumfahrt - Acrylnitril-Butadien-Elastomer (NBR) - Beständig gegen Mineralöle - Härte 80 IRHD

Diese Norm legt die Eigenschaften von Acrylnitril-Butadien-Kautschuk (NBR) ), beständig gegen Mineralöle, Härte 80 IRHD, zur Anwendung in der Luft- und Raumfahrt fest.

Série aérospatiale - Élastomère acrylonitrile butadiène (NBR) - Résistant aux huiles minérales - Dureté 80 DIDC

La présente Norme européenne spécifie les caractéristiques de l’élastomère acrylonitrile butadiène (NBR) 1),
résistant aux huiles minérales, dureté 80 DIDC, pour les applications aérospatiales.

Aeronavtika - Akrilonitril-butadien kavčuk (NBR) - Odporen proti mineralnim oljem - Trdota 80 IRHD

Ta evropski standard določa lastnosti akrilonitril-butadien kavčuka (NBR), odpornega proti mineralnim oljem, s trdoto 80 IRHD za uporabo v aeronavtiki.

General Information

Status
Published
Publication Date
19-Feb-2013
Withdrawal Date
30-Aug-2013
ICS
49.025.40 - Rubber and plastics
Technical Committee
ASD-STAN - Aerospace
Drafting Committee
ASD-STAN/D 5 - Non-Metallic
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
20-Feb-2013
Completion Date
20-Feb-2013
Ref Project
SIST EN 2843:2014 - Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Mineral oil resistant - Hardness 80 IRHD

Overview

EN 2843:2013 is a CEN European Standard for aerospace-grade acrylonitrile‑butadiene rubber (NBR) that is mineral oil resistant and specified at hardness 80 IRHD. It defines the material identity, key physical properties, environmental performance and test/qualification requirements needed when NBR compounds are used in aerospace components exposed to petroleum‑based hydraulic fluids and lubricants.

Key topics and technical requirements

  • Material identity: NBR as designated per ISO 1629.
  • Hardness: Target 80 IRHD (standard test pieces).
  • Mechanical properties: Minimum requirements include tensile strength (≥ 11 MPa) and elongation at break (≥ 150%).
  • Temperature limits: Continuous service −40 °C to +120 °C; intermittent service up to +150 °C.
  • Low temperature performance: TR10 (thermal retraction) requirement not lower than −20 °C.
  • Compression set: Specified limits after heat exposures (e.g., ≤ 40% after 24 h at 125 °C, and ≤ 45% after 70 h at 125 °C).
  • Oil and ageing resistance: Ageing and swelling tests in air and defined test oils (per ISO 1817) with limits on changes to tensile, elongation and hardness after exposure (typical ageing condition referenced: 70 h / 125 °C).
  • Corrosion/adhesion on metals: Specified exposure (e.g., 168 h at 100 °C) with requirement of no corrosion and no adhesion.
  • Batch acceptance and qualification: Full suite of tests required for qualification; a subset identified for batch acceptance (see EN 3207 for technical specification details). Density control for batches is specified with tight tolerances relative to qualification values.
  • Referenced documents: Normative references include EN 3207, ISO 1629, and ISO 1817.

Applications and who uses it

EN 2843 is intended for aerospace components where resistance to mineral oils and petrol‑based hydraulic fluids is critical. Typical applications:

  • Seals, O‑rings and gaskets
  • Hose linings and flexible couplings
  • Vibration isolators and sealing profiles exposed to lubricants

Primary users:

  • Aerospace OEMs and systems designers
  • Material and compound formulators
  • Procurement and quality teams specifying compliant elastomers
  • Test laboratories performing qualification and batch acceptance

Related standards

  • EN 3207 - Rubber compounds - Technical specification (cross‑reference for technical specification and testing program)
  • ISO 1629 - Rubber nomenclature (identification of NBR)
  • ISO 1817 - Determination of the effect of liquids on rubber (oil resistance testing)

EN 2843:2013 provides a concise, prescriptive framework for selecting and qualifying mineral oil resistant NBR (80 IRHD) for aerospace use, ensuring consistent performance in hydraulic and lubricant‑exposed environments.

Frequently Asked Questions

EN 2843:2013 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Mineral oil resistant - Hardness 80 IRHD". This standard covers: This European Standard specifies the properties of acrylonitrile-butadiene rubber (NBR) ), fuel and synthetic oil resistant, hardness 50 IRHD, for aerospace applications.

This European Standard specifies the properties of acrylonitrile-butadiene rubber (NBR) ), fuel and synthetic oil resistant, hardness 50 IRHD, for aerospace applications.

EN 2843:2013 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.

You can purchase EN 2843:2013 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Acrylnitril-Butadien-Elastomer (NBR) - Beständig gegen Mineralöle - Härte 80 IRHDSérie aérospatiale - Élastomère acrylonitrile butadiène (NBR) - Résistant aux huiles minérales - Dureté 80 DIDCAerospace series - Acrylonitrile-butadiene rubber (NBR) - Mineral oil resistant - Hardness 80 IRHD49.025.40Guma in polimerni materialiRubber and plasticsICS:Ta slovenski standard je istoveten z:EN 2843:2013SIST EN 2843:2014en,fr,de01-januar-2014SIST EN 2843:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2843
February 2013 ICS 49.025.40 English Version
Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Mineral oil resistant - Hardness 80 IRHD
Série aérospatiale - Élastomère acrylonitrile butadiène (NBR) - Résistant aux huiles minérales - Dureté 80 DIDC
Luft- und Raumfahrt - Acrylinitrilbutadien-Elastomer (NBR) -Beständig gegen Mineralöle - Härte 80 IRHD This European Standard was approved by CEN on 3 November 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, Former Yugoslav Republic of Macedonia, 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
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2843:2013: ESIST EN 2843:2014
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