EN 2899:2018

Aerospace series - Vulcanized rubbers - Test on the susceptibility to corrosion in a damp atmosphere of metals in contact with vulcanized rubbers

This document defines tests on the susceptibility to corrosion in a damp atmosphere of metals in contact with vulcanized rubbers.

Luft- und Raumfahrt - Vulkanisierte Elastomere - Prüfung der Korrosionsempfindlichkeit in Feuchtklima von Metallen bei Berührung mit vulkanisierten Elastomeren

Diese Europäische Norm legt Prüfungen zur Korrosionsempfindlichkeit in Feuchtklima von Metallen bei Berührung mit vulkanisierten Elastomeren fest.

Série aérospatiale - Élastomères vulcanisés - Essais de sensibilité à la corrosion en atmosphère humide des métaux au contact des élastomères vulcanisés

La présente Norme Européenne définie les essais de sensibilité à la corrosion en atmosphère humide des métaux au contact des élastomères vulcanisés.

Aeronavtika - Vulkanizirane gume - Preskus občutljivosti na korozijo v vlažnem ozračju kovin v stiku z vulkaniziranimi gumami

Ta dokument določa preskuse v zvezi z občutljivostjo na korozijo v vlažnem okolju pri kovinah v stiku z vulkanizirano gumo.

General Information

• Status: Published
• Publication Date: 15-May-2018
• Withdrawal Date: 29-Nov-2018
• ICS: 49.025.40 - Rubber and plastics
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 4/S 7 - Elastomers/Sealants
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 16-May-2018
• Completion Date: 16-May-2018
• Ref Project: SIST EN 2899:2018 - Aerospace series - Vulcanized rubbers - Test on the susceptibility to corrosion in a damp atmosphere of metals in contact with vulcanized rubbers

Overview

EN 2899:2018 - Aerospace series - Vulcanized rubbers - Test on the susceptibility to corrosion in a damp atmosphere of metals in contact with vulcanized rubbers.
This European standard specifies laboratory test methods to assess the susceptibility to contact corrosion when metals are placed in contact with vulcanized rubber and exposed to a damp atmosphere. It is intended for the aerospace sector to verify material compatibility and to detect metal surface deterioration due to rubber–metal contact under humid conditions.

Key topics and technical requirements

• Scope: Defines tests for corrosion susceptibility of metals in contact with vulcanized rubbers in a damp atmosphere.
• Test principle: Rubber test pieces are placed between two metal disks (compressed) and exposed to high humidity; metal disks are visually examined for corrosion or discoloration at ×20 magnification.
• Specimens and dimensions:
  • Metal disks: outer diameter (120 ± 0.5) mm, centre hole, minimum thickness 5 mm (steel) or 10 mm (aluminium); surface roughness ≤ 0.4 µm.
  • Rubber test pieces: (20 ± 1) mm × (20 ± 1) mm × (2 ± 0.2) mm.
• Test methods:
  • Method A - conditioning: immersion in test fluid for 15 min at (23 ± 2) °C, then drained.
  • Method B - no conditioning prior to assembly.
• Assembly and compression: Rubber pieces compressed by (12 ± 3) % using an isolating flanged ring and tightened assembly.
• Environmental conditions: Climatic chamber at (23 ± 2) °C and minimum 95% relative humidity.
• Test duration: 7 days or multiples of 7 days.
• Evaluation: After exposure and cleaning, visual inspection for discoloration or surface deterioration; findings described in the test report.
• Reporting: Required items include method (A or B), test fluid (if A), product designation, batch/date, metal type, environment, exposure time, number of tests, visible deterioration, and test date.

Applications and who uses EN 2899:2018

• Aerospace manufacturers and suppliers validating seals, gaskets, O-rings, and elastomeric components for compatibility with metallic parts.
• Materials and quality engineers assessing metal–rubber contact corrosion risk in fuel systems, hydraulic lines, ventilation ducts, and structural interfaces.
• Test laboratories performing qualification, acceptance, or failure analysis to support procurement and certification decisions.
• Rubber compound developers and material selectors optimizing formulations to minimize corrosive interactions in humid environments.

Related standards

Normative references cited in EN 2899:2018 include:

• EN 2395 (Aluminium alloy AL‑P2014A sheets)
• EN 22171 (Steel FE‑PL52 S sheets/plates)
• EN 2071 (Aluminium sheets dimensions)
• EN 3525 (Steel FE‑PL1505 - note: status references in the standard)
• ISO 23529 (Rubber - preparation and conditioning of test pieces)

Keywords: EN 2899:2018, vulcanized rubbers, contact corrosion, damp atmosphere, aerospace testing, metallic disks, test methods A and B, material compatibility.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Vulkanisierte Elastomere - Prüfung der Korrosionsempfindlichkeit in Feuchtklima von Metallen bei Berührung mit vulkanisierten ElastomerenSérie aérospatiale - Élastomères vulcanisés - Essais de sensibilité à la corrosion en atmosphère humide des métaux au contact des élastomères vulcanisésAerospace series - Vulcanized rubbers - Test on the susceptibility to corrosion in a damp atmosphere of metals in contact with vulcanized rubbers49.025.40Guma in polimerni materialiRubber and plasticsICS:Ta slovenski standard je istoveten z:EN 2899:2018SIST EN 2899:2018en,fr,de01-julij-2018SIST EN 2899:2018SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2899
May
t r s z ICS
v {ä r t wä v r English Version
Aerospace series æ Vulcanized rubbers æ Test on the susceptibility to corrosion in a damp atmosphere of metals in contact with vulcanized rubbers Série aérospatiale æ Élastomères vulcanisés æ Essais de sensibilité à la corrosion en atmosphère humide des métaux au contact des élastomères vulcanisés
Luftæ und Raumfahrt æ Vulkanisierte Elastomere æ Prüfung der Korrosionsempfindlichkeit in Feuchtklima von Metallen bei Berührung mit vulkanisierten Elastomeren This European Standard was approved by CEN on
s y December
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
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