SIST EN 2591-508:2023

Aerospace series - Elements of electrical and optical connection - Part 508: Measurement of thickness of coating on contacts - Test methods

This document specifies methods of measuring thickness of electro-deposited gold or gold alloys coatings on contacts of elements of connection.

Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Teil 508: Messung der Schutzschichtdicke - Prüfverfahren

Dieses Dokument legt Verfahren zum Messen der Dicke von elektrolytisch abgeschiedenen Schutzschichten aus Gold oder Goldlegierungen auf Kontakten von Verbindungselementen fest.

Série aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 508 : Mesure de l'épaisseur du revêtement des contacts

Le présent document spécifie les méthodes de mesure de l'épaisseur des dépôts électrolytiques d'or et d'alliages d'or sur les contacts des organes de connexion.

Aeronavtika - Elementi električnih in optičnih povezav - 508. del: Merjenje debeline premaza na kontaktih - Preskusne metode

Ta dokument določa metode merjenja debeline premazov iz elektrolitsko nanesenega zlata ali njegovih zlitin na kontaktih priključnih elementov.

General Information

• Status: Published
• Public Enquiry End Date: 19-Jul-2022
• Publication Date: 19-Oct-2023
• ICS: 49.060 - Aerospace electric equipment and systems
• ICS: 49.090 - On-board equipment and instruments
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 11-Oct-2023
• Due Date: 16-Dec-2023
• Completion Date: 20-Oct-2023
• Ref Project: EN 2591-508:2023 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 508: Measurement of thickness of coating on contacts

Relations

• Revised: SIST EN 2591-508:2004 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 508: Measurement of thickness of coating on contacts
• Effective Date: 19-Jan-2023

Overview

SIST EN 2591-508:2023 is a European standard developed by CEN that focuses on the measurement of thickness of electro-deposited gold or gold alloy coatings on contacts used in aerospace electrical and optical connection elements. This standard provides precise test methods to ensure coating quality and reliability, which are critical for aerospace applications where electrical contact performance and durability are paramount.

Adopted in 2023, this standard supersedes the earlier 2001 edition and aligns with updated normative references to enhance accuracy and repeatability in thickness measurements of protective coatings on contact elements. SIST EN 2591-508:2023 is part of the broader aerospace series standards concerning electrical and optical connection elements and serves to promote uniformity across European aerospace industries.

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Key Topics

• Scope of Measurement
  Defines methods to measure thickness of electro-deposited gold/gold alloys on contact surfaces ensuring consistent electrical performance.

• Test Methods Included

  • Method A: Beta Backscatter (EN ISO 27874:2008, Annex B, B.3.1)
    Uses beta radiation to measure coating thickness non-destructively.
  • Method B: X-ray Spectrometric (EN ISO 27874:2008, Annex B, B.3.2)
    Employs X-ray fluorescence techniques for precise thickness measurement.

• Normative References
  Incorporates key standards such as EN 2591-100 (general test methods), EN 3155-001 (technical specifications for electrical contacts), and EN ISO 27874:2008 (specifications for electrodeposited gold coatings).

• Terms and Definitions
  Applies consistent terminology mapped to EN 2591-100 and internationally recognized ISO/IEC databases (ISO Online Browsing Platform, IEC Electropedia) for clarity and standardization.

• Specification Details
  Users must define the minimum coating thickness, specifying whether protection is uniform or selective according to zones outlined in EN 3155-001.

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Applications

The standard is critical for aerospace manufacturers, quality assurance engineers, and testing laboratories engaged in:

• Ensuring Electrical Contact Reliability
  Gold coatings on contacts reduce corrosion, improve conductivity, and guarantee reliable signal transmission under extreme aerospace conditions.

• Quality Control in Aerospace Component Manufacturing
  Accurate coating thickness measurement helps maintain compliance with aerospace industry requirements, reducing failures and improving product lifespan.

• Certification and Compliance Testing
  Meeting SIST EN 2591-508:2023 requirements supports conformity to European aerospace supply chain standards and regulatory frameworks.

• Electroplating Process Verification
  Manufacturers employing electroplated gold coatings use the standard’s test methods to verify coating consistency and adherence to strict aerospace specifications.

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Related Standards

• EN 2591-100: Aerospace series - General test methods for elements of electrical and optical connection
• EN 3155-001: Aerospace series - Technical specification for electrical contacts used in connection elements
• EN ISO 27874:2008: Metallic and other inorganic coatings - Electrodeposited gold and gold alloy coatings for electrical, electronic, and engineering purposes - Specification and test methods

These standards collectively establish a comprehensive framework for testing and quality assurance of aerospace electrical connection components.

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Keywords: SIST EN 2591-508:2023, measurement of coating thickness, aerospace electrical connections, electro-deposited gold coatings, beta backscatter method, X-ray spectrometric method, aerospace standards CEN, aerospace contact coatings, aerospace quality control, electrical contact testing.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2023
Aeronavtika - Elementi električnih in optičnih povezav - 508. del: Merjenje debeline
premaza na kontaktih - Preskusne metode
Aerospace series - Elements of electrical and optical connection - Part 508:
Measurement of thickness of coating on contacts - Test methods
Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Teil 508:
Messung der Schutzschichtdicke - Prüfverfahren
Série aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais -
Partie 508 : Mesure de l'épaisseur du revêtement des contacts
Ta slovenski standard je istoveten z: EN 2591-508:2023
ICS:
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 2591-508
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2023
EUROPÄISCHE NORM
ICS 49.060; 49.090 Supersedes EN 2591-508:2001
English Version
Aerospace series - Elements of electrical and optical
connection - Test methods - Part 508: Measurement of
thickness of coating on contacts
Série aérospatiale - Organes de connexion électrique et Luft- und Raumfahrt - Elektrische und optische
optique - Méthodes d'essais - Partie 508 : Mesure de Verbindungselemente - Prüfverfahren - Teil 508:
l'épaisseur du revêtement des contacts Messung der Schutzschichtdicke
This European Standard was approved by CEN on 16 July 2023.

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 CEN-CENELEC 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 CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 2591-508:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Details to be specified . 4
5 Methods .
...