International Standard
ISO 3856-5:1984
Paints and varnishes — Determination of "soluble" metal content — Part 5: Determination of hexavalent chromium content of the pigment portion of the liquid paint or the paint in powder form — Diphenylcarbazide spectrophotometric method
Reference number
ISO 3856-5:1984
Edición 2
International Standard
Vista previa
ISO 3856-5:1984
No disponible en español
Publicado (Edición 2, 1984)
Esta norma se revisó y confirmó por última vez en 2023. Por lo tanto, esta versión es la actual.

ISO 3856-5:1984

ISO 3856-5:1984
CHF 42
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The principle consists in formation of a coloured complex from hexavalent chromium and diphenylcarbazide solution. After addition of orthophosphoric acid and sulfuric acid, spectralphotometric easurement of the colour at a wavelength in the region of 540 nm. The method is applicable to coating materials having hexavalent chromium contents in the range of about 0,05 % (m/m) to 5 % (m/m). This method id the referee method in cases of dispute. This second edition cancels and replaces the ISO 3856/5-1980, of which it constitutes a through revision.

Informaciones generales

  •  : Publicado
     : 1984-10
    : Norma Internacional confirmada [90.93]
  •  : 2
     : 3
  • ISO/TC 256
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