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  • BS EN ISO 4628-2:2016

    Current The latest, up-to-date edition.

    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

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  29-02-2016

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Assessment
    5 Expression of results
    6 Test report
    Annex A (normative) - Calibration images
    Annex B (informative) - Correlation between ISO 4628-2 and
            ASTM D 714 rating systems
    Bibliography

    Abstract - (Show below) - (Hide below)

    Gives a method for assessing the degree of blistering of coatings by comparison with pictorial standards.

    Scope - (Show below) - (Hide below)

    This part of ISO4628 specifies a method for assessing the degree of blistering of coatings by comparison with pictorial standards. The pictorial standards provided in this part of ISO4628 illustrate blisters in the sizes 2, 3, 4, and 5, and each size in the quantities (densities) 2, 3, 4, and 5. ISO4628‑1 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 Product Information - (Show below) - (Hide below)

    Committee STI/10
    Development Note Supersedes BS 3900-H2(1983) and 97/123857 DC. (09/2003) Supersedes BS 3900-H2(2003) & 14/30301158 DC. (02/2016)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 5X 17(1998) : 1998 SPECIFICATION FOR OLEORESINOUS VARNISH FOR AEROSPACE PURPOSES

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 13076:2012 Paints and varnishes Lighting and procedure for visual assessments of coatings
    ISO 4628-1:2016 Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 1: General introduction and designation system
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