Aerospace series - Ethylene-propylene rubber (EPM/EPDM) - Hardness 50 IRHD

This standard specifies the properties of ethylene-propylene rubber (EPM/EPDM), hardness 50 IRHD, for aerospace applications.

Luft- und Raumfahrt - Ethylen-Propylen-Elastomer (EPM/EPDM) - Härte 50 IRHD

Diese Norm legt die Eigenschaften von Ethylen-Propylen-Elastomer (EPM/EPDM), Härte 50 IRHD, für die Anwendung in der Luft- und Raumfahrt fest.

Série aérospatiale - Elastomere éthylene-propylene (EPM/EPDM) - Dureté 50 DIDC

La présente norme définit les caractéristiques des élastomères éthylène- propylène (EPM/EPDM), dureté 50 DIDC, pour applications aérospatiales.

Aerospace series - Ethylene-propylene rubber (EPM/EPDM) - Hardness 50 IRHD

General Information

Status
Published
Publication Date
31-Dec-2000
ICS
49.025.40 - Rubber and plastics
Technical Committee
SS SPL - Technical Board for the general field
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jan-2001
Due Date
01-Jan-2001
Completion Date
01-Jan-2001
Ref Project
EN 2428:1995 - Aerospace series - Ethylene-propylene rubber (EPM/EPDM) - Hardness 50 IRHD

Overview

EN 2428:1995 is a CEN aerospace series standard that defines the required properties for ethylene‑propylene rubber (EPM/EPDM) with a hardness of 50 IRHD for aerospace applications. The document (adopted in some national bodies as SIST EN 2428:2001) sits under the ICS category for rubber and plastics and provides a specification framework to ensure consistent material performance, traceability and compatibility with aerospace operational environments.

Key topics

The standard focuses on the material specification and performance requirements typical for aerospace-grade EPM/EPDM at 50 IRHD. Topics covered include:

  • Material identity and scope - designation of EPM/EPDM grade and intended aerospace use.
  • Physical and mechanical properties - properties and tests that must be met for the specified hardness (50 IRHD).
  • Test methods and sampling - required laboratory test procedures and acceptance sampling to verify conformity.
  • Aging and environmental behavior - performance expectations for exposure to temperature, weathering, ozone and common aerospace fluids (where applicable in the standard).
  • Quality and conformity - documentation, marking and quality assurance practices required for procurement and certification.

Note: EN 2428:1995 establishes the types of requirements and test regimes; it does not replace detailed design or installation instructions.

Applications

EN 2428:1995 is intended for use where stable, medium‑soft ethylene‑propylene elastomers are required in aerospace components. Typical practical applications include:

  • seals, gaskets and O‑rings used in aircraft and spacecraft systems
  • vibration and shock‑damping components where stable hardness is critical
  • non‑fluorinated elastomer parts exposed to fuel, hydraulic fluids or weathering (as specified)
    The standard helps ensure consistent material selection for parts where EPM/EPDM hardness 50 IRHD is appropriate.

Who uses this standard

  • Aerospace OEMs and tier‑1 suppliers specifying elastomer materials
  • Materials and design engineers selecting rubber compounds for seals and elastomeric parts
  • Quality assurance and procurement teams verifying supplier compliance
  • Testing laboratories performing acceptance and qualification tests

Related standards

  • Other CEN/EN aerospace rubber specifications for different elastomer types or hardnesses
  • International test standards (ISO, ASTM) for rubber physical and aging tests used as referenced methods

By citing EN 2428:1995 when specifying EPM/EPDM (50 IRHD), stakeholders achieve clearer procurement requirements, repeatable performance criteria and improved interchangeability across aerospace supply chains.

Frequently Asked Questions

SIST EN 2428:2001 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Ethylene-propylene rubber (EPM/EPDM) - Hardness 50 IRHD". This standard covers: This standard specifies the properties of ethylene-propylene rubber (EPM/EPDM), hardness 50 IRHD, for aerospace applications.

This standard specifies the properties of ethylene-propylene rubber (EPM/EPDM), hardness 50 IRHD, for aerospace applications.

SIST EN 2428:2001 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.

SIST EN 2428:2001 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Ethylene-propylene rubber (EPM/EPDM) - Hardness 50 IRHDLuft- und Raumfahrt - Ethylen-Propylen-Elastomer (EPM/EPDM) - Härte 50 IRHDSérie aérospatiale - Elastomere éthylene-propylene (EPM/EPDM) - Dureté 50 DIDCAerospace series - E
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