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NBN ISO 4660:2021
Rubber, raw natural — Colour index test
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Summary
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.
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.
Technical characteristics
| Publisher | Bureau de Normalisation Belge (NBN) |
| Publication Date | 05/12/2021 |
| Cancellation Date | 11/12/2021 |
| Page Count | 16 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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