BS EN ISO 2376:2019 pdf download.Anodizing of aluminium and itsalloys - Determination of breakdown voltage and withstand voltage.
S.7 Contact plate, for testing flat test specimens, having a smooth, bright, metallic surface, or a contact probe or clip which is capable of breaking through to the basis metal (Li).
5.8 Twisting machine, for testing round wire, having two sets of jaws 400 mm apart, with one set of jaws fixed, while the other set is free to rotate. The jaws shall be mounted so as to prevent lateral movement of the paws when the twisting operation is carried out (22).
6 Test specimen
61 SamplIng
The test specimen shall be taken from a signihcant surface of the product, where the anodic oxidation coating formed thereon needs to satisfy the quality adapted to the application of the product. The test specimen shall not be taken from the edges for possible distortion and/or non-uniformity.
Where It is impossible to test the product itself, a test specimen which is representative of the product may be used. In this case, the test specimen used shall be made from the same material and prepared under the same conditions of finishing as those used for the preparation of the product. The aluminium alloy, the manufacturing conditions (kind and temper of the material), and the surface condition before treatment shall be the same as those of the product. Pretreatment and anodizing shall be performed In the 541 inc bath and under the same conditions as the treatment of the product.
6.2 Treatment before testing
The test specimen shall be clean, free from dirt, stains and other foreign matters. Any deposits or stains shall be removed with a clean, soft cloth or similar material which is wetted by an appropriate organic solvent such as ethanol. Organic solvents which can corrode the test specimen or generate a protective film on the test specimen shall not be used.
6.3 Size
The standard size of the test specimen should be 100 mm in length by 100 mm In width. The test specimen of a different size may be used as agreed between the customer and the anodizer.
5.8 Twisting machine, for testing round wire, having two sets of jaws 400 mm apart, with one set of jaws fixed, while the other set is free to rotate. The jaws shall be mounted so as to prevent lateral movement of the paws when the twisting operation is carried out (22).
6 Test specimen
61 SamplIng
The test specimen shall be taken from a signihcant surface of the product, where the anodic oxidation coating formed thereon needs to satisfy the quality adapted to the application of the product. The test specimen shall not be taken from the edges for possible distortion and/or non-uniformity.
Where It is impossible to test the product itself, a test specimen which is representative of the product may be used. In this case, the test specimen used shall be made from the same material and prepared under the same conditions of finishing as those used for the preparation of the product. The aluminium alloy, the manufacturing conditions (kind and temper of the material), and the surface condition before treatment shall be the same as those of the product. Pretreatment and anodizing shall be performed In the 541 inc bath and under the same conditions as the treatment of the product.
6.2 Treatment before testing
The test specimen shall be clean, free from dirt, stains and other foreign matters. Any deposits or stains shall be removed with a clean, soft cloth or similar material which is wetted by an appropriate organic solvent such as ethanol. Organic solvents which can corrode the test specimen or generate a protective film on the test specimen shall not be used.
6.3 Size
The standard size of the test specimen should be 100 mm in length by 100 mm In width. The test specimen of a different size may be used as agreed between the customer and the anodizer.
