ISO 4621:1986
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ISO 4621:1986
10568

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).


Informations générales 

  •  : Publiée
     : 1986-07
  •  : 1
     : 5
  •  : ISO/TC 256 Pigments, colorants et matières de charge
  •  :
    87.060.10 Pigments et matières de charge

Acheter cette norme

fr
Format Langue
std 1 40 PDF
std 2 40 Papier
  • CHF40

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