SR EN ISO 787-24:2002
Metode generale de încercare pentru pigmenţi şi materiale de umplutură. Partea 24: Determinarea puterii relative de colorare a pigmenţilor coloraţi şi a puterii relative de difuzie a pigmenţilor albi. Metoda fotometrică
The method specified provide an instrumental alternative to those described in ISO 787/16 and ISO 787/17. Equal masses of a coloured material are separately dispersed in the same mass of the same white pigment paste. The reflectivity of each dispersion is measured photometrically. From the corresponding values of K/S the relative tinting strength is given. For measurement of the relative scattering power equal masses of a white test material and an agreed reference pigment are separately dispersed in the same mass of the same black pigment paste. The reflectivity of each dispersion is measured photometrically at 550 nm. From the corresponding values of K/S the relative scattering power is given.
Status :
In vigoare
Data aprobării : 25.11.2002
Data publicării : 26.11.2002
Număr de pagini : 21
ICS : 87.060.10 Pigmenti si materiale de umplutura
Comitet tehnic : 338 - Lacuri, vopsele, cerneluri, răşini, pigmenţi anorganici şi adezivi
- Inlocuieste STAS 7948/6-75
- Inlocuieste STAS 7948/10-70
- Indicat la referinte SR ISO 787-16:1998
- Indicat la referinte SR ISO 4629:1999
- Indicat la referinte SR ISO 787-9:1995
- Indicat la referinte SR ISO 6209:1995
- Indicat la referinte SR ISO 787-2:1994
- Indicat la referinte SR ISO 787-10:1995
- Indicat la referinte SR ISO 3682:1999
- Indicat la referinte SR EN ISO 15528:2001
EN