EN 2847:2013

Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Fuel and synthetic oil resistant - Hardness 70 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 70 IRHD

Diese Europäische Norm legt die Eigenschaften von Acrylnitril-Butadien-Kautschuk (NBR) ), beständig gegen Brennstoffe und synthetische Öle, Härte 70 IRHD, zur Anwendung in der Luft- und Raumfahrt fest.

Série aérospatiale - Élastomère acrylonitrile butadiène (NBR) - Résistant aux carburants et aux huiles synthétiques - Dureté 70 DIDC

Aeronavtika - Akrilonitril-butadien kavčuk (NBR) - Odporen proti gorivom in sintetičnim oljem - Trdota 70 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 2847:2014 - Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Fuel and synthetic oil resistant - Hardness 70 IRHD

Overview

EN 2847:2013 is a European standard developed by CEN, specifying the properties of acrylonitrile-butadiene rubber (NBR) with fuel and synthetic oil resistance and a hardness of 70 IRHD for aerospace applications. This standard is essential for manufacturers and engineers who require materials in aerospace systems that can withstand exposure to petroleum-based fuels and diester-based lubricants while maintaining optimal mechanical and chemical properties.

The standard ensures consistent quality and performance by defining technical requirements, test methods, and material specifications. It promotes safety, reliability, and compatibility in aerospace components exposed to challenging fuel and oil environments.

Key Topics

• Material Specification: Acrylonitrile-butadiene rubber (NBR) with hardness of 70 IRHD, exhibiting resistance to fuel and synthetic oils.
• Application Scope: Specifically for aerospace usage where fuel and synthetic oil exposure are prevalent.
• Temperature Range: Suitable for continuous service from −40 °C to 120 °C and intermittent service up to 150 °C.
• Technical Properties:
  • Hardness at 70 IRHD
  • Minimum tensile strength: 10 MPa
  • Minimum elongation at break: 200%
  • Compression set limits after heat aging
  • Resistance to low temperatures (TR10 ≤ −25 °C)
  • Corrosion and adhesion resistance on metals with no negative impact
• Testing Requirements: Defined batch acceptance and qualification tests based on EN 3207 and ISO 1817 standards, including volume, mass, and tensile tests after exposure to fuel and lubricants.
• Designation Format: Clear rubric for identifying the material according to the EN 2847 standard for traceability and compliance.

Applications

EN 2847:2013 compliant NBR is widely used in aerospace seals, gaskets, O-rings, and other elastomeric components that demand fuel and synthetic oil resistance. Its application areas include:

• Fuel system components: Seals and parts in fuel pumps, valves, and tanks that must resist degradation from gasoline, kerosene, or synthetic lubricants.
• Lubrication system parts: Components exposed to diester-based lubricants where oil resistance is critical.
• Engine and propulsion systems: Elastomeric elements within aerospace engines requiring high durability under temperature and chemical stress.
• Environmental sealing: Elements protecting sensitive aerospace electronics and equipment from hydrocarbon contamination.
• Maintenance and repair operations: Usage as a replacement material for fuel-resistant rubber parts ensuring safety and performance compliance.

By adhering to EN 2847:2013, aerospace manufacturers guarantee that critical rubber components perform reliably under defined service conditions, enhancing aircraft safety, longevity, and operational efficiency.

Related Standards

• EN 3207: Aerospace series - Rubber compounds technical specifications referenced for test methods and technical requirements.
• ISO 1817: Standard guiding the determination of liquid effects on vulcanized rubber, used for testing chemical resistance.
• ISO 1629: Rubber and latices nomenclature providing identification symbols and classifications relevant to NBR materials.
• ASD-STAN Aerospace Standards: General aerospace standardization framework supporting EN 2847 implementation.
• National Standards: EN 2847 has been adopted by all CEN member countries, ensuring harmonized application across Europe.

---

Keywords: EN 2847:2013, acrylonitrile-butadiene rubber, NBR, aerospace rubber standard, fuel resistant rubber, synthetic oil resistant rubber, hardness 70 IRHD, aerospace seals, rubber properties aerospace, rubber fuel resistance, aviation rubber standards.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Brennstoff und synthetisches Öl resistente acrylonitrile-butadien Elastomere (NBR) - Härte 70 - EigenschaftenCaoutchouc acrylonitrile-butadiène résistant à l'huile synthétique et au combustible (NBR) - Degré de dureté 70 - CaractéristiquesAerospace series - Acrylonitrile-butadiene rubber (NBR) - Fuel and synthetic oil resistant - Hardness 70 IRHD49.025.40Guma in polimerni materialiRubber and plasticsICS:Ta slovenski standard je istoveten z:EN 2847:2013SIST EN 2847:2014en01-februar-2014SIST EN 2847:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2847
February 2013 ICS 49.025.40 English Version
Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Fuel and synthetic oil resistant - Hardness 70 IRHD
Série aérospatiale - Élastomère acrylonitrile butadiène (NBR) - Résistant aux carburants et aux huiles synthétiques - Dureté 70 DIDC
Luft- und Raumfahrt - Acrylinitril-Butadien-Elastomer (NBR) - Beständig gegen Brennstoffe und synthetische Öle - Härte 70 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 2847:2013: ESIST EN 2847:2014
...