EN ISO 2376:2019

Anodizing of aluminium and its alloys - Determination of breakdown voltage and withstand voltage (ISO 2376:2019)

Publication date:   Aug 15, 2019

General information

60.60 Standard published   Apr 10, 2019


CEN/TC 132 Aluminium and aluminium alloys

European Norm

25.220.20   Surface treatment



Language in which you want to receive the document.


This document specifies test methods for the determination of the breakdown voltage and withstand voltage of anodic oxidation coatings on aluminium and its alloys, on flat or near-flat surfaces and on round wire. The methods are applicable to anodic oxidation coatings used primarily as electrical insulators.
The methods are not applicable to coatings in the vicinity of cut edges, the edges of holes, or sharp changes of angle on, for example, extruded shapes.
NOTE 1 Breakdown voltage and withstand voltage are affected by relative humidity.
NOTE 2 The methods described do not give satisfactory results for unsealed coatings because they are affected by the humidity in particular.

Life cycle


EN ISO 2376:2010


EN ISO 2376:2019
60.60 Standard published
Apr 10, 2019