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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
1. 10. 1984.

Опште информације

90.93     6. 3. 2023.

ISO

ISO/TC 256

Međunarodni standard

87.040  

francuski   engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

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.

Životni ciklus

PRETHODNO

POVUČEN
ISO 3856-5:1980

TRENUTNO

OBJAVLJEN
ISO 3856-5:1984
90.93 Odluka o potvrđivanju standarda
6. 3. 2023.