UNE EN ISO 787-25:2020
General methods of test for pigments and extenders - Part 25: Comparison of the colour, in full-shade systems, of white, black and coloured pigments - Colorimetric method (ISO 787-25:2019)
Métodos generales de ensayo para pigmentos y extendedores. Parte 25: Comparación, en los sistemas monopigmentarios, del color de los pigmentos blancos, negros y coloreados. Método colorimétrico. (ISO 787-25:2019).
| Označení normy: | UNE EN ISO 787-25:2020 |
| Počet stran: | 17 |
| Vydáno: | 2020-04-29 |
| Status: | Norma |
| Počet stran (Španělsky): | 18 |
UNE EN ISO 787-25:2020
This part of ISO 787 specifies a general test method for comparing the colour, in full shade systems, of white, black or coloured pigments with that of an agreed reference pigment, using a colorimetric procedure. NOTE When the general method specified in this part of ISO 787 is applicable to a given pigment, only a cross-reference to ISO 787-25 needs to be included in the International Standard giving the specification for that pigment, indicating any detailed modification that may be needed in view of the special properties of the material in question. Only when the general method in this part of ISO 787 is not applicable to a particular material a different photometric method for comparison of colour will be specified.