EN 2379:2018
(Main)Aerospace series - Fluids for assessment of non-metallic materials
Aerospace series - Fluids for assessment of non-metallic materials
This document specifies preferred test fluids for evaluating the resistance of non-metallic and related materials to the action of fluids.
The aim of this document is to rationalise the choice of fluids used for qualification and batch testing of materials.
In some cases, the test fluid and conditioning temperatures may closely simulate in-service conditions. However, no direct behaviour with service conditions shall be implied.
Luft- und Raumfahrt - Flüssigkeiten zur Prüfung von nichtmetallischen Werkstoffen
Série aérospatiale - Fluides pour la mise à l'épreuve des matériaux non métalliques
Aeronavtika - Tekočine za preskušanje nekovinskih materialov
Ta dokument določa prednostne preskusne tekočine za ocenjevanje odpornosti nekovinskih in sorodnih materialov na delovanje tekočin.
Namen tega dokumenta je racionalizirati izbiro tekočin, ki se uporabljajo za kvalifikacijo in preskušanje serij materialov.
V nekaterih primerih lahko preskusna tekočina in temperature kondicioniranja natančno simulirajo pogoje delovanja. Vendar neposredna povezava s pogoji delovanja ni podana.
General Information
- Status
- Published
- Publication Date
- 13-Nov-2018
- Withdrawal Date
- 30-May-2019
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 4 - Metallic
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 21-Jan-2024
- Completion Date
- 21-Jan-2026
Relations
- Refers
EN 4855-02:2020 - Aerospace series - ECO efficiency of catering equipment - Part 02: Oven equipment - Effective Date
- 28-Jan-2026
Overview
EN 2379:2018 (CEN) - Aerospace series - specifies preferred test fluids for evaluating the resistance of non‑metallic and related materials to the action of fluids. The standard rationalises fluid selection for qualification and batch testing, lists representative commercial and laboratory fluids, and warns that close simulation of in‑service temperatures/fluids does not imply identical service behaviour.
Key topics
- Preferred fluid groups: EN 2379 groups test fluids into seven categories:
- Group 1 - Mineral and synthetic oils (e.g., Oil No.1 / No.2 / No.3, NATO 0‑142, pyrolised oil NATO 0‑149)
- Group 2 - Hydraulic fluids (e.g., phosphate‑ester Skydrol 500B, NATO H‑515 / H‑537)
- Group 3 - De‑icing fluids and glycol alcohols (e.g., isopropyl alcohol, methanol, ethanol, ethane‑diol)
- Group 4 - Solvents (e.g., acetone, methyl ethyl ketone, toluene)
- Group 5 - Simulated corrosion‑inducing fluids (e.g., distilled water, NaCl solutions, KOH)
- Group 6 - Simulated fuels (ISO liquids A–G, iso‑octane/toluene blends)
- Group 7 - Test fuels (NATO F‑34, F‑35, F‑40, F‑44)
- Test temperatures: Temperatures are selected from EN 2744; selection must consider flash point, maximum safe temperature and toxicity of the test fluid.
- Exposure requirements: Pre‑conditioning, exposure method, duration and temperature are to follow the relevant product or material specification.
- Use of proprietary fluids: Where commercial fluids vary, EN 2379 recommends using well‑defined chemical products or retaining a stock/sample of proprietary fluid with full composition for testing.
- Safety & environment: Conditioning and testing must comply with local health, safety and environmental regulations; elevated temperature exposure may accelerate oxidation unless air access is restricted.
- Documentation: Test report content requirements are specified in the applicable product standard.
Applications
- Material qualification and batch acceptance testing of seals, elastomers, composites, coatings and other non‑metallic components in aerospace.
- Design verification where fluid compatibility is required for component selection and maintenance planning.
- Laboratory test programs for suppliers, OEMs, MRO organizations and defense laboratories using NATO‑coded fluids or ISO references.
- Comparative resistance screening during material selection and development.
Related standards
- EN 2744 - Preferred test temperatures for non‑metallic materials (referenced for temperature selection).
- ISO 1817 - Determination of the effect of liquids on rubber (used for oil classifications and test liquids).
- STANAG 1135 - Interchangeability of fuels, lubricants and associated products (NATO references used in EN 2379).
Keywords: EN 2379:2018, fluids for assessment of non‑metallic materials, aerospace test fluids, NATO codes, Skydrol, hydraulic fluids, de‑icing fluids, test fuels, ISO 1817.
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Frequently Asked Questions
EN 2379:2018 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Fluids for assessment of non-metallic materials". This standard covers: This document specifies preferred test fluids for evaluating the resistance of non-metallic and related materials to the action of fluids. The aim of this document is to rationalise the choice of fluids used for qualification and batch testing of materials. In some cases, the test fluid and conditioning temperatures may closely simulate in-service conditions. However, no direct behaviour with service conditions shall be implied.
This document specifies preferred test fluids for evaluating the resistance of non-metallic and related materials to the action of fluids. The aim of this document is to rationalise the choice of fluids used for qualification and batch testing of materials. In some cases, the test fluid and conditioning temperatures may closely simulate in-service conditions. However, no direct behaviour with service conditions shall be implied.
EN 2379:2018 is classified under the following ICS (International Classification for Standards) categories: 49.035 - Components for aerospace construction. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 2379:2018 has the following relationships with other standards: It is inter standard links to EN 4855-02:2020. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 2379:2018 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.Luft- und Raumfahrt - Flüssigkeiten zur Prüfung von nichtmetallischen WerkstoffenSérie aérospatiale - Fluides pour la mise à l'épreuve des matériaux non métalliquesAerospace series - Fluids for assessment of non-metallic materials49.035Sestavni deli za letalsko in vesoljsko gradnjoComponents for aerospace constructionICS:Ta slovenski standard je istoveten z:EN 2379:2018SIST EN 2379:2019en,fr,de01-januar-2019SIST EN 2379:2019SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2379
November
t r s z ICS
v {ä r u w English Version
Aerospace series æ Fluids for assessment of nonæmetallic materials Série aérospatiale æ Fluides pour la mise à l 5épreuve des matériaux non métalliques
Luftæ und Raumfahrt æ Flüssigkeiten zur Prüfung von nichtmetallischen Werkstoffen This European Standard was approved by CEN on
z July
t r s zä
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
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
t u y {ã t r s z ESIST EN 2379:2019
Page European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions . 4 4 Test fluids . 4 5 Test temperatures . 5 6 Exposure requirement . 5 7 Test report . 5 Annex A (normative)
Description of NATO codes . 9
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