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ISO 4630

Clear liquids - Estimation of colour by the Gardner colour scale

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Organization: ISO
Publication Date: 1 December 2015
Status: active
Page Count: 12
ICS Code (Binders): 87.060.20
scope:

This International Standard specifies a method for estimating the colour of optically clear, yellow/brownish coloured liquid products by means of the Gardner colour scale using colour-measuring instruments. The method uses the Gardner colour scale described in Annex A.

It is applicable to drying oils, varnishes and solutions of fatty acids, polymerized fatty acids, resins, tall oil, tall oil fatty acids, rosin and related products. The results might be invalid if other products are tested.

he method described provides a more precise way of measuring Gardner colour than a visual sample comparison using human eyes. It is applicable to products having colours from Gardner 1 to Gardner 18. The Gardner scale is not applicable to products with colours darker than 18. For products with colours lighter than Gardner 1 the method specified in ISO 6271 applies.

Document History

ISO 4630
December 1, 2015
Clear liquids - Estimation of colour by the Gardner colour scale
This International Standard specifies a method for estimating the colour of optically clear, yellow/brownish coloured liquid products by means of the Gardner colour scale using colour-measuring...
May 15, 1997
Binders for Paints and Varnishes - Estimation of Colour of Clear Liquids by the Gardner Colour Scale
A description is not available for this item.
January 1, 1981
Binders for Paints and Varnishes - Estimation of Colour of Clear Liquids by the Gardner Colour Scale First Edition
A description is not available for this item.

References

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