IS 7088 : 1973 Recommended Practice for Anodizing Aluminium and its Alloys

1 Scope

1.1 This standard covers details of processes generally followedfor producing anodic coatings on aluminium and its alloys. This twotypes of processes are covered in this standard:

Type 1 - Sulphuric or oxalic or chromic acid process - fordecorative or protective purposes or both and

Type 2 - Hard anodizing process - for hard anodic coatingssuitable for wear resistance and engineering applications

1.2 Applications of anodic coatings covered in this standard aregiven in Appendix A for general guidance.

1.3 Integral colour coatings, opaque and barrier coatings arenot covered in this standard.

2 References

IS 266 : 1964Specification for sulphuric acid

IS 1868 : 1968Specification for anodic coatings on aluminium

IS 2679 : 1964Recommendations for equipment for eloectroplating.

IS 3194 : 1965 Codeof recommended practice for cleaning of metals priorto electroplating

IS 3656 : 1968 Codeof recommended practice for mechanical polishing ofmetals for electroplating

IS 6057 : 1970Specification for hard anodic coatings on aluminium