ISO 4660:2020
Rubber, raw natural — Colour index test
Rubber, raw natural — Colour index test
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 9
- Дата публикации:
- 27 мая 2020 г.
- Издание:
- ISO IS 4660 edition 5 version 1
- ICS:
- 83.040.10
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.
Abstract
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 specifies two methods: and . Method B (instrumental measurement) is the preferred method in case of dispute. The standard covers sample preparation, apparatus, calibration, test procedure and expression of results.
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