Aerospace series - Elements of electrical and optical connection - Test methods - Part 315: Fluid resistance

This European Standard specifies the method of determining the fluid resistance of a connector, or cable accessory.
It shall be used together with EN 2591-100 and EN 3909.

Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 315: Beständigkeit gegen Flüssigkeiten

Diese Europäische Norm legt das Verfahren zur Bestimmung der Beständigkeit eines Steckverbinders oder von Leitungs¬zubehör gegen Flüssigkeiten fest.
Sie ist in Verbindung mit EN 2591 100 und EN 3909 anzuwenden.

Série aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 315 : Résistance aux fluides

Aeronavtika - Elementi električnih in optičnih povezav - Preskusne metode - 315. del: Odpornost proti tekočinam

Ta standard določa metodo za preverjanje odpornosti elementov povezav proti tekočinam. Uporabljati ga je treba s standardom EN 2591.

General Information

Status
Published
Publication Date
03-Nov-2015
Withdrawal Date
30-May-2016
ICS
49.060 - Aerospace electric equipment and systems
 
49.090 - On-board equipment and instruments
Technical Committee
ASD-STAN - Aerospace
Drafting Committee
ASD-STAN/D 2 - Electrical
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
04-Nov-2015
Completion Date
04-Nov-2015
Ref Project
SIST EN 2591-315:2016 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 315: Fluid resistance

Relations

Replaces
EN 2591-315:1998 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 315: Fluid resistance
Effective Date
11-Nov-2015
Refers
EN 2591-100:2024 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 100: General
Effective Date
28-Jan-2026
Referred By
EN 3660-016:2009 - Aerospace series - Cable outlet accessories for circular and rectangular electrical and optical connectors - Part 016: Grommet nut, style A, self-locking and non self-locking for EN 3645 - Product standard
Effective Date
28-Jan-2026
Referred By
EN 3155-026:2019 - Aerospace series - Electrical contacts used in elements of connection - Part 026: Contacts, electrical, male, type A, crimp, class R - Product standard
Effective Date
28-Jan-2026
Referred By
EN 4869-001:2024 - Aerospace series - Expanded beam termini, fibre optic non-physical contact in EN 3645 standard cavities - Part 001: Technical specification
Effective Date
28-Jan-2026
Referred By
EN 3155-027:2019 - Aerospace series - Electrical contacts used in elements of connection - Part 027: Contacts, electrical, female, type A, crimp, class R - Product standard
Effective Date
28-Jan-2026
Referred By
EN 3660-019:2009 - Aerospace series - Cable outlet accessories for circular and rectangular electrical and optical connectors - Part 019: Cable outlet, style A, 45°, unsealed, with cable tie strain relief - Product standard
Effective Date
28-Jan-2026
Referred By
EN 3155-045:2019 - Aerospace series - Electrical contacts used in elements of connection - Part 045: Contacts, electrical, female, type A, double crimping, class T - Product standard
Effective Date
28-Jan-2026
Referred By
EN 3155-032:2009 - Aerospace series - Electrical contacts used in elements of connection - Part 032: Contacts, electrical, coaxial, 50 ohms, size 5, male, type D, crimp, class R - Product standard
Effective Date
28-Jan-2026
Referred By
EN 3155-075:2009 - Aerospace series - Electrical contacts used in elements of connection - Part 075: Contacts, electrical, quadrax, size 8, female, type E, crimp, class R - Product standard
Effective Date
28-Jan-2026
Referred By
EN 3155-064:2009 - Aerospace series - Electrical contacts used in elements of connection - Part 064: Contacts, electrical, coaxial, 50 ohms, size 1, female, type D, solder, class R - Product standard
Effective Date
28-Jan-2026
Referred By
EN 3155-063:2009 - Aerospace series - Electrical contacts used in elements of connection - Part 063: Contacts, electrical, coaxial, 50 ohms, size 1, male, type D, solder, class R - Product standard
Effective Date
28-Jan-2026
Referred By
EN 4531-001:2012 - Aerospace series - Connectors, optical, circular, single and multipin, coupled by triple start threaded ring - Flush contacts - Part 001: Technical specification
Effective Date
28-Jan-2026
Referred By
EN 3660-017:2009 - Aerospace series - Cable outlet accessories for circular and rectangular electrical and optical connectors - Part 017: Cable outlet, style A, straight, unsealed, with cable tie strain relief - Product standard
Effective Date
28-Jan-2026
Referred By
EN 3155-024:2006 - Aerospace series - Electrical contacts used in elements of connection - Part 024: Contacts, electrical, triaxial, size 8, male, type D, crimp, class S - Product standard
Effective Date
28-Jan-2026

Overview

EN 2591-315:2015 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 315: Fluid resistance - is a CEN standard that specifies a reproducible method for determining the resistance of electrical and optical connectors (and cable accessories) to fluids. It is intended to be used together with EN 2591-100 (general test methods) and EN 3909 (test fluids).

This standard defines the fluids to be used, specimen preparation, a three‑phase test cycle (immersion, drainage/storage, and heat exposure), default timings and temperatures, cycle count, and final measurement requirements.

Key topics and requirements

  • Scope: Fluid resistance test method for connectors and cable accessories. Used in conjunction with EN 2591-100 and EN 3909.
  • Test fluids: Selection from fluid groups defined in EN 3909 (fuels, hydraulic fluids, oils, cleaning fluids, de-icing fluids, fire extinguishant, cooling fluids). One fluid per specimen from each required group.
  • Specimen preparation:
    • Visual inspection, clean, dry, “ready for use” condition.
    • Unwired cavities fitted with contacts and sealing plugs; 20% of cavities with sealing plugs (minimum 1 plug for connectors with <5 cavities).
    • Wired contacts fitted with sufficient cable to avoid undue strain during immersion.
  • Test cycle (three phases):
    1. First phase - immersion (specimens unmated unless specified); bring to temperature T1 and immerse for (15 + 5) minutes. Grease‑type fluids applied as a fine film and baked similarly if specified.
    2. Second phase - drain/store at ambient for (7 ± 0.5) hours; allow trapped fluid to drain (do not wipe dry).
    3. Third phase - specimens mated and heated in a circulated oven at temperature T2 for (16 ± 0.5) hours. If T2 is unspecified, default is (65 ± 2) °C.
  • Number of cycles: Specified by Product Standard/Technical Specification. If not specified, repeat four additional cycles (five cycles total).
  • Safety and limits: Observe flash points of test fluids; omit gases at test temperature unless instructed; take appropriate safety measures when testing above flash points.
  • Final measurements: Performed at room temperature without cleaning. Include visual exam (EN 2591-101), insulation resistance (EN 2591-206) for non‑conducting fluids, mating/unmating force (EN 2591-408), and contact retention (EN 2591-409) as applicable.

Applications and users

  • Connector and cable accessory manufacturers - qualification and product validation.
  • Aerospace test laboratories - routine environmental and qualification testing.
  • Design and quality engineers - assessing material and sealing robustness against fuels, hydraulic fluids, oils, de-icers and other contaminants.
  • Procurement and certification bodies - verifying compliance with aerospace test requirements.
  • MRO and maintenance planners - understanding connector limits and contamination risks.

Keywords: EN 2591-315:2015, fluid resistance test, aerospace connectors, test methods, EN 2591-100, EN 3909, immersion testing, connector qualification.

Related standards

  • EN 2591-100 - General test methods (Aerospace series)
  • EN 2591-101 - Visual examination
  • EN 2591-206 - Measurement of insulation resistance
  • EN 2591-408 - Mating and unmating forces
  • EN 2591-409 - Contact retention in insert
  • EN 3909 - Test fluids for electrical and optical components and sub‑assemblies

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Frequently Asked Questions

EN 2591-315:2015 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Elements of electrical and optical connection - Test methods - Part 315: Fluid resistance". This standard covers: This European Standard specifies the method of determining the fluid resistance of a connector, or cable accessory. It shall be used together with EN 2591-100 and EN 3909.

This European Standard specifies the method of determining the fluid resistance of a connector, or cable accessory. It shall be used together with EN 2591-100 and EN 3909.

EN 2591-315:2015 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems; 49.090 - On-board equipment and instruments. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 2591-315:2015 has the following relationships with other standards: It is inter standard links to EN 2591-315:1998, EN 2591-100:2024, EN 3660-016:2009, EN 3155-026:2019, EN 4869-001:2024, EN 3155-027:2019, EN 3660-019:2009, EN 3155-045:2019, EN 3155-032:2009, EN 3155-075:2009, EN 3155-064:2009, EN 3155-063:2009, EN 4531-001:2012, EN 3660-017:2009, EN 3155-024:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 2591-315:2015 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 - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 315: Beständigkeit gegen FlüssigkeitenSérie aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 315: Résistance aux fluidesAerospace series - Elements of electrical and optical connection - Test methods - Part 315: Fluid resistance49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 2591-315:2015SIST EN 2591-315:2016en,fr,de01-januar-2016SIST EN 2591-315:2016SLOVENSKI
STANDARDSIST EN 2591-315:20011DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2591-315
November
t r s w ICS
v {ä r x râ
v {ä r { r Supersedes EN
t w { sæ u s wã s { { zEnglish Version
Aerospace series æ Elements of electrical and optical connection æ Test methods æ Part
u s wã Fluid resistance Série aérospatiale æ Organes de connexion électrique et optique æ Méthodes d 5essais æ Partie
u s w ã Résistance aux fluides
Luftæ und Raumfahrt æ Elektrische und optische Verbindungselemente æ Prüfverfahren æ Teil
u s wã Beständigkeit gegen Flüssigkeiten This European Standard was approved by CEN on
z June
t r s wä
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 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:
Avenue Marnix 17,
B-1000 Brussels
t r s w CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
t w { sæ u s wã t r s w ESIST EN 2591-315:2016

Page European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Test fluids . 4 4 Preparation of specimens . 5 5 Method . 5 6 Final measurements and requirements (if applicable) . 8
EN 2591-100, Aerospace series — Elements of electrical and optical connection — Test methods — Part 100: General EN 2591-101, Aerospace series — Elements of electrical and optical connection — Test methods — Part 101: Visual examination EN 2591-206, Aerospace series — Elements of electrical and optical connection — Test methods — Part 206: Measurement of insulation resistance EN 2591-408, Aerospace series — Elements of electrical and optical connection — Test methods — Part 408: Mating and unmating forces EN 2591-409, Aerospace series — Elements of electrical and optical connection — Test methods — Part
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