EN 2591-6315:2001

Aerospace series - Elements of electrical and optical connection - Test methods - Part 6315: Optical elements - Fluid resistance

This standard specifies a method of checking the resistance of optical connection elements (including permanent connections) and fibre optic couplers to fluids and lubricants.
It shall be used together with EN 2591-100.

Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 6315: Optische Elemente - Beständigkeit gegen Flussigkeiten

Diese Norm legt ein Verfahren zum Nachweis der Widerstandsfähigkeit von optischen Verbindungselementen (einschließlich dauerhaften Verbindungen) und LWL-Kopplern gegen Flüssigkeiten und Schmierstoffe fest.
Sie ist in Verbindung mit EN 2591-100 anzuwenden.

Série aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 6315 : Organes optiques - Résistance aux fluides

La présente norme prescrit une méthode pour vérifier la résistance d'organes de connexion optique (y compris les connexions permanentes) et de coupleurs à fibre optique aux fluides et lubrifiants.
Elle doit être utilisée conjointement avec EN 2591-100.

Aerospace series - Elements of electrical and optical connection - Test methods - Part 6315: Optical elements - Fluid resistance

General Information

• Status: Published
• Publication Date: 20-Nov-2001
• Withdrawal Date: 30-May-2002
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 2 - Electrical
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 01-Jun-2017
• Completion Date: 11-Feb-2026
• Ref Project: SIST EN 2591-6315:2004 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 6315: Optical elements - Fluid resistance

Relations

• Refers: EN 2591-408:1998 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 408: Mating and unmating forces
• Effective Date: 28-Jan-2026
• Refers: EN 2591-409:1999 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 409: Contact retention in insert
• Effective Date: 28-Jan-2026
• Refers: EN 2591-6101:2001 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 6101: Optical elements - Visual examination
• Effective Date: 28-Jan-2026
• Refers: EN 2591-315:2015 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 315: Fluid resistance
• Effective Date: 28-Jan-2026
• Refers: EN 2591-601:2001 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 601: Optical elements - Insertion loss
• Effective Date: 28-Jan-2026
• Referred By: EN 3155-083:2019 - Aerospace series - Electrical contacts used in elements of connection - Part 083: Contact, electrical, female, type A, crimp, class S, size 8 - Product standard
• Effective Date: 28-Jan-2026
• Referred By: EN 3155-012:2006 - Aerospace series - Electrical contacts used in elements of connection - Part 012: Contacts, electrical, triaxial, size 8, male, type D, solder, class R - Product standard
• Effective Date: 28-Jan-2026
• Referred By: EN 4644-001:2017 - Aerospace series - Connector, electrical and optical, rectangular, modular, rectangular inserts, operating temperature 175 °C (or 125 °C) continuous - Part 001: Technical specification
• Effective Date: 28-Jan-2026
• Referred By: EN 3155-066:2006 - Aerospace series - Electrical contacts used in elements of connection - Part 066: Contacts, electrical, female, type A, crimp, class S, size 8 - Product standard
• Effective Date: 28-Jan-2026
• Referred By: EN 3646-001:2007 - Aerospace series - Connectors, electrical, circular, bayonet coupling, op-erating temperature 175 °C or 200 °C continuous - Part 001: Technical specification
• Effective Date: 28-Jan-2026
• Referred By: EN 3660-004:2023 - Aerospace series - Cable outlet accessories for circular and rectangular electrical and optical connectors - Part 004: Cable outlet, style A, straight, unsealed with clamp strain relief - Product standard
• Effective Date: 28-Jan-2026
• Referred By: EN 3155-079:2019 - Aerospace series - Electrical contacts used in elements of connection - Part 079: Contacts size 22 for EN 2997, electrical, female, type A, crimp, class S - Product standard
• Effective Date: 28-Jan-2026
• Referred By: EN 3155-035:2012 - Aerospace series - Electrical contacts used in elements of connection - Part 035: Contacts, electrical, triaxial, size 08, female, type D, crimp, class R - Product standard
• Effective Date: 28-Jan-2026
• Referred By: EN 3155-066:2013 - Aerospace series - Electrical contacts used in elements of connection - Part 066: Contacts, electrical, female, type A, crimp, class S, size 8 - Product standard
• Effective Date: 28-Jan-2026
• Referred By: EN 3155-017:2006 - Aerospace series - Electrical contacts used in elements of connection - Part 017: Contacts, electrical, relay base, female, type A, crimp, class P - Product standard
• Effective Date: 28-Jan-2026

Overview

EN 2591-6315:2001 is a European standard developed by CEN for the aerospace sector. It focuses on test methods to evaluate the fluid resistance of optical connection elements-specifically, fiber optic connectors and permanent connections. This standard is a critical reference for ensuring the reliability and durability of optical interconnects subjected to harsh operating environments where exposure to various fluids and lubricants is common. The procedures specified must be used in conjunction with EN 2591-100, the general requirements for electrical and optical connection testing in aerospace applications.

Key Topics

• Scope of Testing: Defines methods to verify the resistance of fiber optic connectors and couplers to detrimental effects caused by fluids such as lubricants, fuels, and other chemical agents commonly encountered in aerospace environments.
• Specimen Preparation: Details on preparing test samples, including normal accessories, cable/fiber type and length, and the termination in accordance with product specific standards.
• Testing Procedure: References EN 2591-315 for fluid immersion and handling, including steps for cleaning optical faces as outlined in EN 2591-100.
• Performance Assessment: Includes insertion loss measurement (EN 2591-601), visual inspection for detrimental effects (EN 2591-6101), and mechanical integrity checks (EN 2591-408 and EN 2591-409).

Applications

The EN 2591-6315:2001 standard is widely used across the aerospace industry to ensure the performance and safety of optical interconnect systems. Typical applications include:

• Aircraft and Spacecraft Systems: Verification of ruggedness for fiber optic interconnections subjected to aviation fluids and mechanical handling.
• Defense Equipment: Quality assurance of optical connectors in military aerospace systems, where fluid exposure can impact signal integrity.
• Component Manufacturing: Used by manufacturers to certify that fiber optic components meet fluid resistance requirements prior to installation or integration.
• Maintenance and Inspection: Utilized by maintenance teams for compliance checks during scheduled servicing, ensuring long-term reliability and functionality of installed optical networks.

Related Standards

• EN 2591-100: Aerospace series – Elements of electrical and optical connection – Test methods – Part 100: General. Must be used together with EN 2591-6315 for full test procedures.
• EN 2591-315: Fluid resistance test method applicable for preliminary procedures outlined in EN 2591-6315.
• EN 2591-601: Insertion loss measurement for optical elements.
• EN 2591-6101: Visual examination protocol for optical elements for signs of damage post-fluid exposure.
• EN 2591-408 & EN 2591-409: Testing for mechanical performance, including mating/unmating forces and retention strength of optical contacts.

Practical Value

Compliance with EN 2591-6315:2001 is essential for aerospace organizations, manufacturers, and quality assurance teams aiming to:

• Increase the service life and reliability of fiber optic components in chemically aggressive environments.
• Ensure that safety-critical systems maintain expected optical performance under operational stresses.
• Meet stringent industry regulations and specifications for component approval and interoperability.

By adopting this standard, organizations affirm their commitment to high levels of performance, safety, and quality in aerospace fiber optic systems, reducing the risk of failures linked to fluid exposure and strengthening overall system resilience.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2004
Aerospace series - Elements of electrical and optical connection - Test methods -
Part 6315: Optical elements - Fluid resistance
Aerospace series - Elements of electrical and optical connection - Test methods - Part
6315: Optical elements - Fluid resistance
Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren -
Teil 6315: Optische Elemente - Beständigkeit gegen Flussigkeiten
Série aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais -
Partie 6315 : Organes optiques - Résistance aux fluides
Ta slovenski standard je istoveten z: EN 2591-6315:2001
ICS:
49.060 /HWDOVNDLQYHVROMVND Aerospace electric
HOHNWULþQDRSUHPDLQVLVWHPL equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 2591-6315
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2001
ICS 49.060
English version
Aerospace series - Elements of electrical and optical connection
- Test methods - Part 6315: Optical elements - Fluid resistance
Série aérospatiale - Organes de connexion électrique et Luft- und Raumfahrt - Elektrische und optische
optique - Méthodes d'essais - Partie 6315: Organes Verbindungselemente - Prüfverfahren - Teil 6315: Optische
optiques - Résistance aux fluides Elemente - Beständigkeit gegen Flussigkeiten
This European Standard was approved by CEN on 4 June 2001.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 2591-6315:2001 E
worldwide for CEN national Members.

Foreword
This European Standard has been prepared by the European Association of Aerospace Manufacturers
(AECMA).
After inquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of
AECMA, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by May 2002, an
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