BS EN 13523-15:2015
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Coil coated metals. Test methods Metamerism
Hardcopy , PDF
English
31-07-2015
21-10-2021
European Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Sampling
7 Test panels
8 Procedure
9 Expression of results
10 Precision
11 Test report
Bibliography
Gives terms of the procedure for determining the metamerism of a colour match of an organic coating on a metallic substrate.
| Committee |
STI/21
|
| DevelopmentNote |
Supersedes 00/120604 DC (08/2002) Supersedes 14/30291747 DC. (07/2015)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
This part of EN13523 defines terms of the procedure for determining the metamerism of a colour match of an organic coating on a metallic substrate. When two colour specimens have identical spectral reflection curves, they are matching under any illuminant irrespective of its spectral characteristics. This is termed a “spectral match??. It is also possible for two colour specimens having different spectral reflection curves to match visually under a given light source but not to match under another light source with different spectral characteristics; such matches are termed “metameric??. One quantitative description of metamerism is the so-called “ metamerism index??. The information of the metamerism index is of limited value where Δ E (instrumental colour difference for a given illuminant, see EN13523-3 ) is >0,5. The metamerism index is not suited for determining the absolute colour difference or colour constancy of a given specimen at change of illuminant. The colour difference under the reference illuminant is to be measured in colour coordinates L*, a*and b*(see EN13523-3 ). Excluded from this method are organic coatings producing fluorescence and/or which are multicoloured, pearlescent or metallic.
| Standards | Relationship |
| I.S. EN 13523-15:2015 | Identical |
| DIN EN 13523-15:2015-09 | Identical |
| NBN EN 13523-15 : 2015 | Identical |
| NF EN 13523-15 : 2015 | Identical |
| NS EN 13523-15 : 2002 | Identical |
| NEN EN 13523-15 : 2015 | Identical |
| EN 13523-15:2015 | Identical |
| UNE-EN 13523-15:2015 | Identical |
| EN 23270:1991 | Paints and varnishes and their raw materials - Temperatures and humidities for conditioning and testing (ISO 3270:1984) |
| EN 13523-0:2014 | Coil coated metals - Test methods - Part 0: General introduction |
| EN 13523-3:2014 | Coil coated metals - Test methods - Part 3: Colour difference - Instrumental comparison |
| EN 1396:2015 | Aluminium and aluminium alloys - Coil coated sheet and strip for general applications - Specifications |
| EN 10169:2010+A1:2012 | Continuously organic coated (coil coated) steel flat products - Technical delivery conditions |
| DIN 6172:2014-10 | Special metamerism-index for pairs of samples at change in illuminant |
| ISO 3270:1984 | Paints and varnishes and their raw materials — Temperatures and humidities for conditioning and testing |
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