ISO 10546-1993 PDF

Full title and description

ISO 10546:1993 — Chemical conversion coatings — Rinsed and non-rinsed chromate conversion coatings on aluminium and aluminium alloys. This International Standard specifies requirements for chromate conversion coatings (rinsed and non-rinsed) applied to aluminium and its alloys to provide corrosion protection and to act as a base for subsequent coatings; it covers surface preparation, application, testing and classification.

Abstract

Specifies requirements relating to chromate conversion coatings on aluminium and aluminium alloys intended to give protection against corrosion and to serve as a base for other coatings. The standard addresses surface preparation, methods of application, electrical insulation resistance, adhesion, corrosion resistance, coating mass per unit area and related identification, sampling and test specimens; Annex A gives qualitative testing of the layer composition and Annex B treatment sequence options.

General information

• Status: Withdrawn.
• Publication date: 1993-03 (implementation date cited as 18 March 1993).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 25.220.20 — Surface treatment / Chemical conversion coatings; technical responsibility ISO/TC 107/SC 8.
• Edition / version: Edition 1 (1993).
• Number of pages: 7 pages.

Scope

The standard applies to rinsed and non-rinsed chromate conversion coatings on aluminium and aluminium alloys. It defines requirements for coating performance and composition, describes sampling and test specimens, and gives classification criteria. It is intended to be used where chromate conversion coatings are required for corrosion protection or as a preparatory layer for further surface treatments.

Key topics and requirements

• Surface preparation requirements prior to conversion coating application (cleaning, degreasing, etc.).
• Methods of application for rinsed and non-rinsed chromate conversion coatings.
• Electrical insulation resistance and adhesion test requirements.
• Corrosion-resistance performance criteria and test methods.
• Coating mass per unit area and significance of coating mass for classification.
• Coating identification, sampling rules and preparation of test specimens.
• Annex A: qualitative testing of layer composition; Annex B: treatment sequence options.

Typical use and users

Used by aluminium finishing and surface-treatment engineers, coating suppliers, corrosion testing laboratories, OEMs specifying protective or pre-treatment coatings, procurement/specification writers, and standards or compliance teams involved in metal finishing. Although the standard provided technical requirements and test descriptions, users should check for current or replacement documents because ISO 10546:1993 has been withdrawn.

Related standards

Standards from ISO/TC 107/SC 8 on chemical conversion coatings and related metallic coating standards (for example other chromate or conversion-coating specifications and anodizing/coating standards) are related. Users often consult contemporaneous standards on adhesion testing, corrosion testing and anodic oxide specifications when specifying surface treatments.

Keywords

chromate conversion coating, chemical conversion coatings, aluminium, aluminium alloys, rinsed conversion, non-rinsed conversion, corrosion protection, coating mass, adhesion, electrical insulation resistance, ISO 10546.

FAQ

Q: What is this standard?

A: ISO 10546:1993 is an International Standard that specified requirements for rinsed and non-rinsed chromate conversion coatings on aluminium and aluminium alloys, covering preparation, application and test requirements.

Q: What does it cover?

A: It covers surface preparation, methods of application, electrical insulation resistance, adhesion, corrosion resistance, coating mass per unit area, identification, sampling and test specimens, classification, and includes Annex A (qualitative layer-composition testing) and Annex B (treatment sequence options).

Q: Who typically uses it?

A: Aluminium surface-treatment specialists, coating manufacturers and suppliers, corrosion test laboratories, OEMs specifying protective pre-treatments, and procurement/specification writers in industries that use coated aluminium.

Q: Is it current or superseded?

A: ISO 10546:1993 has been withdrawn (the ISO catalogue shows the status as Withdrawn; national catalogs and resellers cite a withdrawal/withdrawn-from date in 2016). Users should consult current ISO/TC 107/SC 8 publications or national adoptions for up-to-date requirements.

Q: Is it part of a series?

A: It is part of the body of ISO standards maintained under ISO/TC 107 (surface treatment) and ISO/TC 107/SC 8 (chemical conversion coatings); related conversion-coating and metallic-coating standards are maintained by the same technical committee.

Q: What are the key keywords?

A: chromate conversion, chemical conversion coatings, aluminium, corrosion protection, rinsed conversion, non-rinsed conversion, adhesion testing, coating mass.