EN 2535:2022

SLOVENSKI STANDARD
01-junij-2022
Nadomešča:
SIST EN 2535:2011
Aeronavtika - Usedline kadmija v vakuumu
Aerospace series - Vacuum deposition of cadmium
Luft- und Raumfahrt - Aufdampfen von Kadmium im Vakuum
Série aérospatiale - Cadmiage sous vide
Ta slovenski standard je istoveten z: EN 2535:2022
ICS:
49.025.99 Drugi materiali Other materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 2535
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2022
EUROPÄISCHE NORM
ICS 49.040 Supersedes EN 2535:2011
English Version
Aerospace series - Vacuum deposition of cadmium
Série aérospatiale - Cadmiage sous vide Luft- und Raumfahrt - Aufdampfen von Kadmium im
Vakuum
This European Standard was approved by CEN on 17 January 2022.

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, Turkey 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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 2535:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General principles of the process . 7
4.1 Purpose of process . 7
4.2 Thickness . 7
4.3 Indications for use of cadmium coatings . 7
5 Apparatus and materials . 7
5.1 Vacuum enclosure . 7
5.2 Deposition material . 7
5.3 Masking material . 8
6 Process requirements . 8
6.1 Information for the processor . 8
6.2 Process schedule . 8
6.3 Pre-treatment . 8
6.3.1 General. 8
6.3.2 Degreasing . 8
6.3.3 Abrasive blasting . 9
6.4 Treatment . 9
6.4.1 Suspension and clamping of parts . 9
6.4.2 Evacuation of the enclosure (primary vacuum) . 9
6.4.3 Sputter cleaning . 9
6.4.4 Deposition . 9
6.4.5 Flooding, venting . 9
6.4.6 Removal . 10
6.5 Post-treatment . 10
6.5.1 Chromating . 10
6.5.2 Without post-treatment . 10
6.5.3 Non chromium (VI) passivation . 10
6.5.4 Additional protection . 10
6.6 Removal of the coating . 10
6.6.1 Chemical process . 10
6.6.2 Mechanical process . 10
6.7 Reprocessing . 10
7 Test specimens requirements . 10
8 Parts requirements . 11
8.1 Condition of parts prior to processing . 11
8.1.1 General. 11
8.1.2 Stress relief treatment . 11
8.2 Tests for qualification . 11
9 Quality assurance . 11
9.1 Approval of the processor. 11
9.2 Process approval. 11
9.3 Acceptance . 11
10 Health, safety and environmental aspects. 12
11 Designation . 12
Annex A (informative) Tests on test specimens and on parts for qualification . 13
Bibliography . 15

European foreword
This document (EN 2535:2022) has been prepared by the Aerospace and Defence Industries
Association of Europe — Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document shall be given the status of a national standard, either by publication of an identical text
or by endorsement, at the latest by October 2022, and conflicting national standards shall be withdrawn
at the latest by October 2022.
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.
This document supersedes EN 2535:2011.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this document: 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, Turkey and the United
Kingdom.
1 Scope
This document specifies the method for depositing cadmium layers according to the vacuum deposition
process, for use in aerospace construction.
According to this process, cadmium metal is vaporized under vacuum and deposited directly on the
base material with an interlayer. The coating produced in this way is ductile and electrically conductive.
This document is applicable whenever referenced.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 2437, Aerospace series — Chromate conversion coatings (yellow) for aluminium and aluminium alloys
EN 2828, Aerospace series — Adhesion test for metallic coatings by burnishing
EN ISO 1463, Metallic and oxide coatings — Measurement of coating thickness — Microscopical method
(ISO 1463)
EN ISO 2082, Metallic and other inorganic coatings — Electroplated coatings of cadmium with
supplementary treatments on iron or steel (ISO 2082)
EN ISO 2177, Metallic coatings — Measurement of coating thickness — Coulometric method by anodic
dissolution (ISO 2177)
EN ISO 2178, Non-magnetic coatings on magnetic substrates — Measurement of coating thickness —
Magnetic method (ISO 2178)
EN ISO 2819, Metallic coatings on metallic substrates — Electrodeposited and chemically deposited
coatings — Review of methods available for testing adhesion (ISO 2819)
EN ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests (ISO 9227)
ISO 2859-1, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by
acceptance quality limit (AQL) for lot-by-lot inspection
ISO 4520, Chromate conversion coatings on electroplated zinc and cadmium coatings
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at https://www.electropedia.org/

Published by: ISO International Organization for Standardization http://www.iso.ch/.
3.1
batch
parts of the same nature (form, size, material), treated at the same time
3.2
customer
organization or person that receives a product or service
[SOURCE: ISO 18295-1:2017, 3.7, modified — Note 1 to entry omitted]
3.3
manufacturer
company or person who manufactures parts or assembles components in ac
...