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ISO DIS 4628-1
M00018954
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ISO DIS 4628-1 2014 Edition, June 12, 2014 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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Description / Abstract:
This part of ISO 4624 defines a system 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 used throughout ISO 4628. This system is intended to be
used, in particular, for defects caused by ageing and weathering,
and for uniform changes, for example yellowing.
The other parts of ISO 4628 provide pictorial standards or other
means for evaluating particular types of defect. As far as
possible, already existing evaluation schemes have been used as the
basis.
This part of ISO 4628 is also used for assessing defects not
covered by the other parts of ISO 4628.