SIST EN 2261:2001
(Main)Aerospace series - Silicone rubber (VMQ) - Hardness 70 IRHD
Aerospace series - Silicone rubber (VMQ) - Hardness 70 IRHD
This standard specifies the properties of silicone rubber (VMQ), hardness 70 IRHD, for aerospace applications.
Luft- und Raumfahrt - Silicon-Elastomer (VMQ) - Härte 70 IRHD
Diese Norm legt die Eigenschaften von Silicon-Elastomer (VMQ), Härte 70 IRHD, für die Anwendung in der Luft- und Raumfahrt fest.
Série aérospatiale - Elastomere silicone (VMQ) - Dureté 70 DIDC
La présente norme définit les caractéristiques des élastomères silicone (VMQ), dureté 70 DIDC, pour applications aérospatiales.
Aerospace series - Silicone rubber (VMQ) - Hardness 70 IRHD
General Information
Overview
EN 2261:1995 is a CEN aerospace series standard that specifies the properties of silicone rubber (VMQ) with a nominal hardness of 70 IRHD for aerospace applications. Adopted in several member states (e.g., published as SIST EN 2261:2001 in Slovenia), the document defines the expected material characteristics and usage intent for VMQ elastomer components used in aircraft and spacecraft systems.
Key Topics
The standard focuses on material properties and conformity for silicone rubber used in aerospace environments. Key technical topics and requirements typically covered include:
- Material designation: identification of VMQ (methyl vinyl silicone) elastomer and the specified hardness class 70 IRHD.
- Physical properties: requirements for hardness measurement (IRHD), dimensional stability, and other core physical attributes relevant to aerospace use.
- Performance characteristics: expectations for behavior under thermal, environmental and mechanical loading consistent with aerospace operational conditions.
- Testing and acceptance: provisions for sampling, inspection and verification to ensure material batches meet the standard’s property requirements.
- Marking and documentation: traceability, labeling and certification needed for procurement and quality assurance in regulated aerospace supply chains.
(As the published extract is brief, consult the full EN 2261:1995 text or national adoption for exact test methods and acceptance limits.)
Applications
EN 2261:1995 is intended for engineers, procurement specialists and quality managers involved with:
- Seals, gaskets and O-rings in aircraft and spacecraft systems where silicone VMQ is selected for its temperature and chemical resistance.
- Designers specifying elastomer components that require consistent hardness and material performance across suppliers.
- Suppliers and manufacturers of aerospace elastomeric parts who must demonstrate conformity to European aerospace material standards.
- Certification and maintenance organizations that audit material suitability for airworthiness and reliability.
Who Uses This Standard
- Aerospace OEMs and subcontractors
- Elastomer product manufacturers and compounders
- Quality assurance and compliance teams in aviation
- Procurement professionals specifying VMQ materials for aerospace programs
Related Standards
- EN 2261:1995 is part of the CEN aerospace series; consult national adoptions (e.g., SIST EN 2261:2001) and complementary standards for specific test methods, temperature ratings, or system-level qualification criteria.
Keywords: EN 2261:1995, silicone rubber VMQ, hardness 70 IRHD, aerospace standard, CEN, aerospace elastomer.
Frequently Asked Questions
SIST EN 2261:2001 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Silicone rubber (VMQ) - Hardness 70 IRHD". This standard covers: This standard specifies the properties of silicone rubber (VMQ), hardness 70 IRHD, for aerospace applications.
This standard specifies the properties of silicone rubber (VMQ), hardness 70 IRHD, for aerospace applications.
SIST EN 2261:2001 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.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Silicone rubber (VMQ) - Hardness 70 IRHDLuft- und Raumfahrt - Silicon-Elastomer (VMQ) - Härte 70 IRHDSérie aérospatiale - Elastomere silicone (VMQ) - Dureté 70 DIDCAerospace series - Silicone rubber
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