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 chalking by tape method Ingestion-build-180956 This standard is a revision

This standard is a revision of BS EN ISO 2409:2007

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Implementation and deployment issues

It explains how to establish and define the main parameters to be used as input for building energy calculation and long-term evaluation of the indoor environment

It provides a common framework that facilitates exchange and communication

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 chalking by tape method Ingestion-build-180956 This standard is a revision1 Scope This part of ISO 4628 provides pictorial reference standards for designating the degree of chalking of paint coatings. It also describes a method by which the degree of chalking is rated. In using this method, it is essential that care be taken to distinguish between true degradation products and adhering dirt, particularly when chalking is slight.