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Overview ISO 4660:2020 - Rubber, raw natural - Colour index test defines standardized procedures to determine the colour of raw natural rubber against a recognized colour scale. The document specifie…
What is ISO 4660 about? ISO 4660 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…
1 Scope This International Standard specifies a method of determining the colour of raw natural rubber according to a standard colour scale.