NORMSERVIS s.r.o.

ISO 4621:1986

Chrome oxide green pigments — Specifications and methods of test

NORMA vydaná dňa 17.7.1986

Anglicky -
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Anglicky -
Tlačené (54.90 EUR)


Francúzsky -
Elektronické PDF (54.90 EUR)
Francúzsky -
Tlačené (54.90 EUR)

Informácie o norme:

Označenie normy: ISO 4621:1986
Dátum vydania normy: 17.7.1986
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO

Anotácia textu normy ISO 4621:1986 :

Description / Abstract: 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).