I.S. EN ISO 3668:2020
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Paints and varnishes - Visual comparison of colour of paints (ISO 3668:2017)
Hardcopy , PDF
13-03-2020
English
01-03-2020
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Illumination for colour matching
6 Observer
7 Test panels and reference standards
8 Procedure for colour comparison
9 Assessment of metamerism
10 Test report
Annex A (normative) Colour difference rating scheme
Annex B (informative) Metameric matches
Bibliography
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