ISO 4660:2011 Rubber, raw natural - Colour index test

Fourth edition. ISO 4660 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 3, Raw materials (including latex) for use in the rubber industry. This fourth edition cancels and replaces the third edition (ISO 4660:1999), which has been technically revised. — 12 p.
This International Standard specifies a method of determining the colour of raw natural rubber according to a standard colour scale.