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ISO 4621:1986

Current Revision

Chrome oxide green pigments - Specifications and methods of test

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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).


SDO ISO: International Organization for Standardization
Document Number ISO 4621
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 35/SC 2
Publish Date Document Id Type View
Not Available ISO 4621:1986 Revision