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ISO 4621:1986

Chrome oxide green pigments — Specifications and methods of test
17. 7. 1986.

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90.93     27. 10. 2023.

ISO

ISO/TC 256

Međunarodni standard

87.060.10  

francuski   engleski  

Kupovina

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Apstrakt

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).

Životni ciklus

TRENUTNO

OBJAVLJEN
ISO 4621:1986
90.93 Odluka o potvrđivanju standarda
27. 10. 2023.

Nacionalna preuzimanja

SRPS ISO 4621:2015  
ISS

Zeleni pigmenti hrom-oksida — Specifikacije i metode ispitivanja

90.93   Odluka o potvrđivanju standarda

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