Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Fuel and synthetic oil resistant - Hardness 90 IRHD

This European Standard specifies the properties of acrylonitrile-butadiene rubber (NBR)  ), fuel and synthetic oil resistant, hardness 70 IRHD, for aerospace applications.

Luft- und Raumfahrt - Acrylinitril-Butadien-Elastomer (NBR) - Beständig gegen Brennstoffe und synthetische Öle - Härte 90 IRHD

Diese Europäische Norm legt die Eigenschaften von Acrylnitril-Butadien-Kautschuk (NBR)  ), beständig gegen Brennstoffe und synthetische Öle, Härte 90 IRHD, zur Anwendung in der Luft- und Raumfahrt fest.

Série aérospatiale - Élastomère acrylonitrile butadiène (NBR) - Résistant aux carburants et aux huiles synthétiques - Dureté 90 DIDC

Aeronavtika - Akrilonitril-butadien kavčuk (NBR) - Odporen proti gorivom in sintetičnim oljem - Trdota 90 IRHD

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 2849:2014 - Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Fuel and synthetic oil resistant - Hardness 90 IRHD

Overview

EN 2849:2013 is a CEN (Aerospace series) standard that defines the required properties and test regime for acrylonitrile‑butadiene rubber (NBR) formulated to be fuel and synthetic oil resistant for aerospace applications. The document covers material designation, required physical and mechanical properties, acceptance testing and typical service temperature ranges for NBR elastomers with a hardness of 90 IRHD. It is intended to ensure consistent performance of NBR components exposed to petroleum fuels and diester‑based lubricants in aerospace environments.

Key topics and requirements

  • Material type: Acrylonitrile‑butadiene rubber (NBR), fuel and synthetic oil resistant, hardness 90 IRHD.
  • Temperature range: Continuous service −40 °C to 120 °C; intermittent service −40 °C to 150 °C.
  • Mechanical properties:
    • Hardness: 90 IRHD (specified)
    • Tensile strength: ≥ 12.5 MPa (minimum)
    • Elongation at break: ≥ 120% (minimum)
    • Density: batch value tolerance within 0.02 Mg/m3 of qualification value
  • Aging and resistance: Compression set limits (24 h @ 125 °C ≤ 45%; 70 h @ 125 °C ≤ 50%), low‑temperature TR10 ≤ −10 °C.
  • Chemical resistance tests: Liquid exposure and volume/mass/property variation limits are specified according to ISO 1817 test media (fuel and lubricant fluids).
  • Corrosion and adhesion on metals: After 168 h at 100 °C, no corrosion and no adhesion permitted.
  • Testing regime: All tests required for qualification; a defined subset is used for batch acceptance (see tables in the standard). Test methods reference EN 3207 and ISO standards.

Applications and practical use

  • Use EN 2849 when specifying NBR materials for seals, O‑rings, hoses, gaskets and other elastomer components that must resist aviation fuels and synthetic oils.
  • Ensures material selection and batch acceptance in aerospace OEM and MRO procurement, quality control, and material certification.
  • Helps design engineers, material engineers, suppliers and procurement specialists establish objective acceptance criteria for NBR elastomers used in fuel systems, lubrication systems and fluid‑handling components in aircraft.

Who uses this standard

  • Aerospace OEMs and suppliers of rubber components
  • Material and quality engineers for aircraft systems
  • Testing laboratories performing qualification and batch acceptance tests
  • Procurement and compliance teams managing parts specifications

Related standards

  • EN 3207 - Rubber compounds - Technical specification (referenced for test tables)
  • ISO 1629 - Nomenclature for rubber types
  • ISO 1817 - Determination of the effect of liquids on vulcanized rubber

For precise test procedures, full acceptance criteria and clause‑level requirements, consult the full EN 2849:2013 text and the referenced EN/ISO documents.

Frequently Asked Questions

EN 2849:2013 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Fuel and synthetic oil resistant - Hardness 90 IRHD". This standard covers: This European Standard specifies the properties of acrylonitrile-butadiene rubber (NBR) ), fuel and synthetic oil resistant, hardness 70 IRHD, for aerospace applications.

This European Standard specifies the properties of acrylonitrile-butadiene rubber (NBR) ), fuel and synthetic oil resistant, hardness 70 IRHD, for aerospace applications.

EN 2849:2013 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 2849:2013 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 - Acrylinitril-Butadien-Elastomer (NBR) - Beständig gegen Brennstoffe und synthetische Öle - Härte 90 IRHDSérie aérospatiale - Élastomère acrylonitrile butadiène (NBR) - Résistant aux carburants et aux huiles synthétiques - Dureté 90 DIDCAerospace series - Acrylonitrile-butadiene rubber (NBR) - Fuel and synthetic oil resistant - Hardness 90 IRHD49.025.40Guma in polimerni materialiRubber and plasticsICS:Ta slovenski standard je istoveten z:EN 2849:2013SIST EN 2849:2014en01-februar-2014SIST EN 2849:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2849
February 2013 ICS 49.025.40 English Version
Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Fuel and synthetic oil resistant - Hardness 90 IRHD
Série aérospatiale - Élastomère acrylonitrile butadiène (NBR) - Résistant aux carburants et aux huiles synthétiques - Dureté 90 DIDC
Luft- und Raumfahrt - Acrylinitril-Butadien-Elastomer (NBR) - Beständig gegen Brennstoffe und synthetische Öle - Härte 90 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 2849:2013: ESIST EN 2849:2014
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