ISO 4628-6:1990
ISO 4628-6:1990


ISO 4628 is a series of standards dealing with the sampling and testing of paints, varnishes and related products. This part 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.

General information 

  •  :  Withdrawn
     : 1990-12
  •  : 1
     : 3
  •  : ISO/TC 35/SC 9 General test methods for paints and varnishes
  •  :
    87.040 Paints and varnishes

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