NF A91-484*NF EN ISO 2931:2018 Anodizing of aluminium and its alloys - Assessment of quality of sealed anodic oxidation coatings by measurement of admittance
2018NF A91-484*NF EN ISO 2931:2018 Anodizing of aluminium and its alloys - Assessment of quality of sealed anodic oxidation coatings by measurement of admittance