Objavljen
This document specifies two methods to determine the colour of raw natural rubber according to a standard colour scale:
— Method A: colour matching against standard coloured glasses;
— Method B: colour determination using colour spectrophotometer.
In case of dispute, the preferred method is Method B.
POVUČEN
ISO 4660:2011
OBJAVLJEN
ISO 4660:2020
90.93
Odluka o potvrđivanju standarda
10. 6. 2025.