718238

ISO 4621:1986

Chrome oxide green pigments - Specifications and methods of test

standard by International Organization for Standardization , 07/01/1986

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Full Description

Specifies three grades, which shall not be in admixture with other colouring matter of organic or inorganic nature and shall be free from extenders. The pigment consists essentially of chromium(III) oxide (Cr2O3) in the form of a dry powder. Grade 1, these pigments shall contain a residue on a sieve of 45 nm mesh aperture of not more than 0,01 % (m/m); grade 2, under the same conditions, shall contain a residue of more than 0,01 % (m/m) and not more than 0,1 % (m/m) and grade 3 shall contain a residue of more than 0,1 % (m/m) and not more than 0,5 % (m/m).

 

Product Details

Published:
07/01/1986
Number of Pages:
5
File Size:
1 file , 470 KB
Same As:
BS 318:1988
Note:
This product is unavailable in Ukraine, Russia, Belarus