EN
SR EN ISO 8781-1:2003
Pigmenţi şi materiale de umplutură. Metode de dispersare pentru evaluarea dispersabilităţii. Partea 1: Evaluare pornind de la variaţia puterii de colorare
Relates to coloured pigments which have been dispersed by one of the methods described in ISO 8780. The method is of general use for comparing similar pigments, for example a test pigment against an agreed reference pigment. The principle consists in dispersing the pigment in stages under specified conditions in an agreed binder system. After each dispersion stage, a portion of the mill base is taken and mixed separately with a white pigment to form a reduced paste. The tinting strength of each reduced paste is determined as described in ISO 787-24. The percentage increase in tinting strength between two dispersion stages is calculated in order to assess the ease of dispersibility of the pigment.
Status :
In vigoare
Data aprobării : 26.05.2003
Data publicării : 27.05.2003
Data publicării versiunii române : 26.05.2003
Număr de pagini : 14
ICS : 87.060.10 Pigmenti si materiale de umplutura
Comitet tehnic : 338 - Lacuri, vopsele, cerneluri, răşini, pigmenţi anorganici şi adezivi
- Inlocuieste SR ISO 8781-1:1996
- A99 SR ISO 8781-1:1996/A99:2003