DIN EN ISO 2931:2018 Anodizing of aluminium and its alloys - Assessment of quality of sealed anodic oxidation coatings by measurement of admittance (ISO 2931:2017)
2018DIN EN ISO 2931:2018-04 Anodizing of aluminium and its alloys - Assessment of quality of sealed anodic oxidation coatings by measurement of admittance (ISO 2931:2017); German version EN ISO 2931:2018
2018DIN EN ISO 2931:2018 Anodizing of aluminium and its alloys - Assessment of quality of sealed anodic oxidation coatings by measurement of admittance (ISO 2931:2017)
2010DIN EN ISO 2931:2010 Anodizing of aluminium and its alloys - Assessment of quality of sealed anodic oxidation coatings by measurement of admittance (ISO 2931:2010); German version EN ISO 2931:2010
1999DIN EN 12373-5:1999 Aluminium and aluminium alloys - Anodizing - Part 5: Assessment of quality of sealed anodic oxidation coatings by measurement of admittance; German version EN 12373-5:1998