prEN 4908

Aerospace series - Hexavalent chromium free chemical conversion process of magnesium and magnesium alloys

This document specifies the requirements for the hexavalent chromium free chemical conversion process of magnesium and magnesium alloys to ensure an adhesion base before bonding and painting.
The purpose of this document is to specify design, quality and manufacturing requirements. It does not specify complete in-house process instructions; these are specified in the processors detailed process instructions.

Luft- und Raumfahrt - Chrom(VI)-freies chemisches Umwandlungsverfahren von Magnesium und Magnesiumlegierungen

Série aérospatiale - Procédé de conversion chimique sans chrome hexavalent du magnésium et des alliages de magnesium

Le présent document spécifie les exigences relatives au procédé de conversion chimique sans chrome hexavalent du magnésium et des alliages de magnésium permettant d’assurer une base d'adhérence avant le collage et la peinture.
L’objet du présent document est de spécifier les exigences de conception, de qualité et de fabrication. Il ne spécifie pas de gamme de production complète ; ces informations sont spécifiées dans les instructions détaillées de l’applicateur relatives au procédé.

Aeronavtika - Postopek kemične pretvorbe magnezija in magnezijevih zlitin brez šestvalentnega kroma

General Information

• Status: Not Published
• Publication Date: 18-Nov-2024
• ICS: 49.025.15 - Non-ferrous alloys in general
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 4/S 6 - Surface treatments for Metallic
• Current Stage: 4599 - Dispatch of FV draft to CMC - Finalization for Vote
• Start Date: 05-Jan-2024
• Completion Date: 05-Jan-2024
• Ref Project: oSIST prEN 4908:2023 - Aerospace series - Hexavalent chromium free chemical conversion process of magnesium and magnesium alloys

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 4908:2023
01-april-2023
Aeronavtika - Postopek kemične pretvorbe magnezija in magnezijevih zlitin brez
šestvalentnega kroma
Aerospace series - Hexavalent chromium free chemical conversion process of
magnesium and magnesium alloys
Luft- und Raumfahrt - Chrom(VI)-freies chemisches Umwandlungsverfahren von
Magnesium und Magnesiumlegierungen
Série aérospatiale - Procédé de conversion chimique sans chrome hexavalent du
magnésium et des alliages de magnésium
Ta slovenski standard je istoveten z: prEN 4908
ICS:
49.025.15 Neželezove zlitine na Non-ferrous alloys in general
splošno
77.120.20 Magnezij in magnezijeve Magnesium and magnesium
zlitine alloys
oSIST prEN 4908:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 4908:2023

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oSIST prEN 4908:2023


DRAFT
EUROPEAN STANDARD
prEN 4908
NORME EUROPÉENNE

EUROPÄISCHE NORM

February 2023
ICS
English Version

Aerospace series - Hexavalent chromium free chemical
conversion process of magnesium and magnesium alloys
Série aérospatiale - Procédé de conversion chimique Luft- und Raumfahrt - Chrom(VI)-freies chemisches
sans chrome hexavalent du magnésium et des alliages Umwandlungsverfahren von Magnesium und
de magnésium Magnesiumlegierungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


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. prEN 4908:2023 E
worldwide for CEN national Members.

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oSIST prEN 4908:2023
prEN 4908:2023 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 General principle of the process . 5
4.1 Purpose of the process . 5
4.2 Limitations . 5
5 Process requirements . 5
5.1 Information for the processor . 5
5.2 Process schedule . 5
5.3 Proce
...