Colour standard glass scales are used for determining the organic impurities in fine aggregates by the colorimetric method using organic-impurities test bottles.
These five colored glass scales are mounted on a plastic holder.
Colour Standard Glass Scales
Colour standard glass scales are used for determining the organic impurities in fine aggregates by the colorimetric method using organic-impurities test bottles.
Code Description
48-D0850/A Reference colours glass
ASTM C40
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