BS EN ISO 4628-2:2003
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

Standard No.

BS EN ISO 4628-2:2003

Release Date

2003

Published By

British Standards Institution (BSI)

Status

Be replaced 2016-02

Replace By

BS EN ISO 4628-2:2016

Latest

BS EN ISO 4628-2:2016

Replace

97/123857 DC:1997 BS 3900-H2:1983

Scope

This part of ISO 4628 describes 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 4628-1 defines the system used for designating the quantity and size of defects and the intensity of changes in appearance of coatings and outlines the general principles of the system. This system is intended to be used, in particular, for defects caused by ageing and weathering, and for uniform changes such as colour changes, for example yellowing.

BS EN ISO 4628-2:2003 history

• 2016 BS EN ISO 4628-2:2016 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
• 2003 BS EN ISO 4628-2:2003 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