NF A91-493:2011
Anodizing of aluminium and its alloys - Rating system for the evaluation of pitting corrosion - Grid method.

Standard No.

NF A91-493:2011

Release Date

2011

Published By

Association Francaise de Normalisation

Latest

NF A91-493:2011

Replace

NF A91-455-19:2002

NF A91-493:2011 history

• 2011 NF A91-493:2011 Anodizing of aluminium and its alloys - Rating system for the evaluation of pitting corrosion - Grid method.
• 0000 NF A91-455-19:2002
• 1989 NF A91-441:1989 Anodized aluminium and aluminium alloys. Rating system for the evaluation of pitting corrosion. Grid method.