Paints and varnishes. Evaluation of degradation of coatings. Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Assessment of degree of blistering Ingestion-build-46800 NOTE The standard deals partly

NOTE The standard deals partly with flat products

The appliance classification types have been updated

Each test defines the number of samples to be evaluated as described in BS EN 61753-1-3

The normative references have been updated and the terms and definitions have been revised and updated

Who is BS EN 15751- Acelerated oxidation method for determination of the oxidation stability of fuels for

Paints and varnishes. Evaluation of degradation of coatings. Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Assessment of degree of blistering Ingestion-build-46800 NOTE The standard deals partly1 Scope This part of ISO 4628 specifies a method for assessing the degree of blistering of coatings by comparison with pictorial standards. The pictorial standards provided in this part of ISO 4628 illustrate blisters in the sizes 2, 3, 4, and 5, and each size in the quantities (densities) 2, 3, 4, and 5. ISO 46281 defines the system used for designating the quantity and size of defects and the intensity of changes in appearance of coatings and