EN ISO 8407:2021/A1:2025

Corrosion of metals and alloys - Removal of corrosion products from corrosion test specimens - Amendment 1 (ISO 8407:2021/Amd 1:2025)

Korrosion von Metallen und Legierungen - Entfernen von Korrosionsprodukten von Korrosionsprüfkörpern - Änderung 1 (ISO 8407:2021/Amd 1:2025)

Corrosion des métaux et alliages - Élimination des produits de corrosion sur les éprouvettes d'essai de corrosion - Amendement 1 (ISO 8407:2021/Amd 1:2025)

Korozija kovin in zlitin - Odstranjevanje produktov korozije s preskusnih vzorcev - Dopolnilo A1 (ISO 8407:2021/Amd 1:2025)

General Information

• Status: Published
• Publication Date: 04-Mar-2025
• ICS: 77.060 - Corrosion of metals
• Technical Committee: CEN/TC 262 - Metallic and other inorganic coatings
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 05-Mar-2025
• Completion Date: 05-Mar-2025
• Ref Project: SIST EN ISO 8407:2021/A1:2025 - Corrosion of metals and alloys - Removal of corrosion products from corrosion test specimens - Amendment 1 (ISO 8407:2021/Amd 1:2025)

Relations

• Amends: EN ISO 8407:2021 - Corrosion of metals and alloys - Removal of corrosion products from corrosion test specimens (ISO 8407:2021)
• Effective Date: 28-Jun-2023

Overview

EN ISO 8407:2021/A1:2025 is a CEN-endorsed amendment to ISO 8407:2021, the international standard that specifies procedures for the removal of corrosion products from corrosion test specimens. This Amendment 1 (approved February 2025 and published March–May 2025) makes targeted changes to informative material (Table A.1) used by corrosion testing laboratories and materials engineers to ensure consistent, reproducible cleaning of test samples prior to analysis.

Key topics and technical changes

• The standard continues to address methods for cleaning and preparing corrosion test specimens so that measurements (for example mass loss or surface analysis) are accurate and comparable.
• Amendment 1 specific changes (ISO 8407:2021/Amd 1:2025):
  • In Table A.1, the reagent name "sulfonic acid" is replaced with "sulfamic acid".
  • A table layout change: a blank line between entries C.7.7 and C.7.8 is deleted so that C.7.8 and C.7.9 are included with the stainless steels entries.
• The document is produced under ISO/TC 156 (Corrosion of metals and alloys) in collaboration with CEN/TC 262, and is to be adopted as a national standard in CEN member countries by September 2025.

Applications and who uses it

• Laboratories performing corrosion testing, including mass-loss determinations, electrochemical tests, and surface analyses, use EN ISO 8407 to:
  • Select appropriate chemical treatments and cleaning sequences for different metal and alloy test specimens.
  • Ensure repeatability and comparability of corrosion test results.
  • Prepare specimens for failure analysis, coating evaluation, and R&D.
• Typical users:
  • Corrosion engineers and materials scientists
  • Accredited testing and calibration labs
  • Coatings and metal manufacturers
  • Quality assurance and regulatory compliance teams
  • Standards bodies and technical committees

Practical value

• Ensures consistent removal of corrosion products so that subsequent measurements reflect true material degradation rather than residual corrosion films or cleaning artefacts.
• The amendment improves clarity in reagent designation (important for procurement, safety data sheets, and method implementation) and corrects table organization for stainless steel entries, supporting accurate method selection.

Related references

• ISO 8407:2021 (base standard) and this document ISO 8407:2021/Amd 1:2025 (EN ISO 8407:2021/A1:2025).
• Prepared by ISO/TC 156 with cooperation from CEN/TC 262.

Keywords: EN ISO 8407:2021/A1:2025, corrosion of metals, removal of corrosion products, corrosion test specimens, sulfamic acid, stainless steels, corrosion testing, ISO 8407 amendment.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2025
Korozija kovin in zlitin - Odstranjevanje produktov korozije s preskusnih vzorcev -
Dopolnilo A1 (ISO 8407:2021/Amd 1:2025)
Corrosion of metals and alloys - Removal of corrosion products from corrosion test
specimens - Amendment 1 (ISO 8407:2021/Amd 1:2025)
Korrosion von Metallen und Legierungen - Entfernen von Korrosionsprodukten von
Korrosionsprüfkörpern - Änderung 1 (ISO 8407:2021/Amd 1:2025)
Corrosion des métaux et alliages - Élimination des produits de corrosion sur les
éprouvettes d'essai de corrosion - Amendement 1 (ISO 8407:2021/Amd 1:2025)
Ta slovenski standard je istoveten z: EN ISO 8407:2021/A1:2025
ICS:
77.060 Korozija kovin Corrosion of metals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 8407:2021/A1
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2025
EUROPÄISCHE NORM
ICS 77.060
English Version
Corrosion of metals and alloys - Removal of corrosion
products from corrosion test specimens - Amendment 1
(ISO 8407:2021/Amd 1:2025)
Corrosion des métaux et alliages - Élimination des Korrosion von Metallen und Legierungen - Entfernen
produits de corrosion sur les éprouvettes d'essai de von Korrosionsprodukten von Korrosionsprüfkörpern
corrosion - Amendement 1 (ISO 8407:2021/Amd - Änderung 1 (ISO 8407:2021/Amd 1:2025)
1:2025)
This amendment A1 modifies the European Standard EN ISO 8407:2021; it was approved by CEN on 22 February 2025.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant 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 amendment 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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8407:2021/A1:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 8407:2021/A1:2025) has been prepared by Technical Committee ISO/TC 156
"Corrosion of metals and alloys" in collaboration with Technical Committee CEN/TC 262 “Metallic and
other inorganic coatings, including for corrosion protection and corrosion testing of metals and alloys”
the secretariat of which is held by BSI.
This Amendment to the European Standard EN ISO 8407:2021 shall be given the status of a national
standard, either by publication of an identical text or by endorsement, at the latest by September 2025,
and conflicting national standards shall be withdrawn at the latest by September 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: 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, Slovaki
...