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

Publication date: 1 tet 1984

General information

Current stage: 90.93 Effective date: 6 mar 2023

Originator: ISO

Owner: ISO/TC 256

Type: International Standard

ICS: 87.040

Gjuha: frëngjisht anglisht

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Statusi: Publikuar

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 3856-5:1980

NOW

PUBLISHED
ISO 3856-5:1984
90.93 Standard confirmed
6 mar 2023

National adoptions

SSH ISO 3856-5:2001

DPS

Bojra dhe verniqe - Percaktimi i permbajtjes se metalit "te tretshem" - Pjesa 5: percaktimi i permbajtjes se kromit gjashte valent te pjeses se pigmentit ne bojrat e lengshme ose te bojrave ne forme pluhuri - Metoda spektrometrike e absorbimit atomik te f

60.60 Standard published

DPS/KT 276 më tepër