Reference number
ISO 4628-2:2016
© ISO 2024
International Standard
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 — Part 2: Assessment of degree of blistering
Edition 3
2016-01
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Published (Edition 3, 2016)
This publication was last reviewed and confirmed in 2021. Therefore this version remains current.

ISO 4628-2:2016

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Format
CHF 96
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Abstract

ISO 4628-2:2016 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 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.

General information

  • Status
     : Published
    Publication date
     : 2016-01
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 3
    Number of pages
     : 13
  • Technical Committee :
    ISO/TC 35/SC 9
    ICS :
    87.040 
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