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UNE EN ISO 787-15:2020
General methods of test for pigments and extenders - Part 15: Comparison of resistance to light of coloured pigments of similar types (ISO 787-15:2019)
Métodos generales de ensayo para pigmentos y extendedores. Parte 15: Comparación de la resistencia a la luz de los pigmentos coloreados de tipos similares. (ISO 787-15:2019).
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| Standard number: | UNE EN ISO 787-15:2020 |
| Pages: | 16 |
| Released: | 2020-02-19 |
| Status: | Standard |
DESCRIPTION
UNE EN ISO 787-15:2020
This document describes a general method of test for comparing the resistance to light of samples of similar types of coloured pigments (agreed reference pigment and test sample). Two methods of exposure are described in this document. In method A, the material is exposed under glass to natural light. In method B, the material is exposed to direct artificial light.