Aerospace series - Elements of electrical and optical connection - Test methods - Part 507: Plating porosity

This standard specifies a method for assessing the plating porosity of contacts.
It shall be used together with EN 2591-100.

Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 507: Porosität der Schutzschicht

Diese Norm legt ein Verfahren zur Bewertung der Porosität der Schutzschicht von Kontakten fest.
Sie ist in Verbindung mit EN 2591-100 anzuwenden.

Série aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 507: Porosité du revêtement

Aerospace series - Elements of electrical and optical connection - Test methods - Part 507: Plating porosity

General Information

Status
Published
Publication Date
18-Jun-2002
Withdrawal Date
30-Dec-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
30-Jun-2017
Completion Date
14-Apr-2025
Ref Project
SIST EN 2591-507:2004 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 507: Plating porosity

Overview

EN 2591-507:2002 is a CEN/AECMA aerospace test method that defines how to assess plating porosity of electrical and optical connector contacts. It is part of the EN 2591 aerospace series of test methods and is intended to be used together with EN 2591-100 (general test principles). The standard specifies a visual, nitric-acid-based immersion test to reveal defects in protective plating (porosity) that could compromise electrical contact performance in aerospace applications.

Key topics

  • Scope: Method for assessing plating porosity of contacts (no wiring of specimens).
  • Specimen preparation: Contacts shall not be wired; may require removal of parts that chemically react with nitric acid so that only plated surfaces are observed.
  • Pre-test requirement: Contacts are submitted to an initial mechanical endurance test (referenced EN 2591-406) prior to porosity assessment.
  • Test medium: Immersion in nitric acid with specific gravity 1.316 at 15.6 °C (as quoted in the standard).
  • Procedure:
    • Place contacts in containers and cover with the specified nitric acid so all surfaces are visible.
    • Observe contacts during immersion for 30 seconds.
    • Disregard initial bubbles caused by air entrapment.
  • Pass/fail criterion: No reaction in the form of bubbles on the outside surfaces of plated contacts during the 30 s observation. Bubbles indicate plating porosity.

Requirements (summary)

  • Conduct mechanical endurance per EN 2591-406 before porosity testing.
  • Use the specified nitric acid concentration and conditions stated in the standard.
  • Observe a 30-second immersion period for visible bubble formation.
  • Ignore short-lived bubbles from trapped air; treat persistent bubbles as evidence of porosity.

Applications and who uses it

EN 2591-507 is used for quality control, acceptance testing, supplier qualification, and failure analysis of aerospace connectors and contacts. Typical users include:

  • Aerospace manufacturers and OEMs
  • Connector and plating suppliers
  • Independent test laboratories and certification bodies
  • Quality assurance / inspection engineers in aircraft systems and harness manufacturing
  • Maintenance and overhaul organizations assessing contact integrity

Practical benefits include detecting coating defects that could lead to corrosion, increased contact resistance, or intermittent electrical failures - critical in safety-sensitive aerospace systems.

Related standards

  • EN 2591-100 - Aerospace series: Test methods - General (must be used together with EN 2591-507)
  • EN 2591-406 - Mechanical endurance (referenced as the required initial test)

Keywords: EN 2591-507, plating porosity, aerospace connector testing, contact porosity test, test methods, nitric acid immersion, EN 2591 series.

Frequently Asked Questions

EN 2591-507:2002 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 507: Plating porosity". This standard covers: This standard specifies a method for assessing the plating porosity of contacts. It shall be used together with EN 2591-100.

This standard specifies a method for assessing the plating porosity of contacts. It shall be used together with EN 2591-100.

EN 2591-507:2002 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 2591-507:2002 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.Aerospace series - Elements of electrical and optical connection - Test methods - Part 507: Plating porosityLuft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 507: Porosität der SchutzschichtSérie aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 507: Porosité du revetementAerospace series - Elements of electrical and optical connection - Test methods - Part 507: Plating porosity49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 2591-507:2002SIST EN 2591-507:2004en01-maj-2004SIST EN 2591-507:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 2591-507June 2002ICS 49.060English versionAerospace series - Elements of electrical and optical connection- Test methods - Part 507: Plating porositySérie aérospatiale - Organes de connexion électrique etoptique - Méthodes d'essais - Partie 507: Porosité durevêtementLuft- und Raumfahrt - Elektrische und optischeVerbindungselemente - Prüfverfahren - Teil 507: Porositätder SchutzschichtThis European Standard was approved by CEN on 8 February 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 2591-507:2002 ESIST EN 2591-507:2004
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