ISO 8994:1989
Anodized aluminium and aluminium alloys; rating system for the evaluation of pitting corrosion; grid method

Standard No.

ISO 8994:1989

Release Date

1989

Published By

International Organization for Standardization (ISO)

Status

Be replaced 2011-03

Replace By

ISO 8994:2011

Latest

ISO 8994:2018

Scope

Defines levels of performance of anodic oxide coatings that have been subjected to corrosion tests. The rating system is applicable to pitting corrosion of the basis metal resulting from accelerated tests, exposure to corrosive environments and practical service tests. It is frequently used for rating the results of short term corrosion tests on relatively thin anodic coatings such as those used in the automotive industry.

ISO 8994:1989 history

• 2018 ISO 8994:2018 Anodizing of aluminium and its alloys — Rating system for the evaluation of pitting corrosion — Grid method
• 2011 ISO 8994:2011 Anodizing of aluminium and its alloys - Rating system for the evaluation of pitting corrosion - Grid method
• 1989 ISO 8994:1989 Anodized aluminium and aluminium alloys; rating system for the evaluation of pitting corrosion; grid method