EN
SR EN ISO 8781-3:2003
Pigmenţi şi materiale de umplutură. Metode de dispersare pentru evaluarea dispersabilităţii. Partea 3: Evaluare pornind de la variaţia luciului
The method is of general use for comparing similar pigments, for example a test pigment against an agreed reference pigment. The pigment is dispersed in stages under specified conditions in an agreed binder system. After each stage, a portion of the mill base is taken and made into a composition that is applied to a substrate and dried or stoved. The specular gloss of each dried film is determined as described in ISO 2813. The gloss values are plotted graphically as a function of the dispersion stage (expressed for example as time, number of revolutions of a muller). From the graph, the dispersion work necessary to obtain an agreed specular reflection value is determined.
Status :
In vigoare
Data aprobării : 26.05.2003
Data publicării : 27.05.2003
Data publicării versiunii române : 26.05.2003
Număr de pagini : 12
ICS : 87.060.10 Pigmenti si materiale de umplutura
Comitet tehnic : 338 - Lacuri, vopsele, cerneluri, răşini, pigmenţi anorganici şi adezivi
- Inlocuieste SR ISO 8781-3:1996
- Indicat la referinte SR EN ISO 8780-4:2003
- A99 SR ISO 8781-3:1996/A99:2003