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ISO 3856-1:1984

Paints and varnishes - Determination of soluble metal content - Part 1: Determination of lead content - Flame atomic absorption spectrometric method and dithizone spectrophotometric method
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ISO 3856-1:1984

Paints and varnishes - Determination of soluble metal content - Part 1: Determination of lead content - Flame atomic absorption spectrometric method and dithizone spectrophotometric method

PUBLISH DATE 1984
ISO 3856-1:1984

The principle of the AAS method consists in aspiration of the test solution into an acetylen/air flame. Measurement of the absorption of the selected spectral line, emitted by a lead hollow-cathode or lead discharge lamp, in the region of 283,3 nm.

The principle of the dithizone method consists in extraction of the lead from the test solution with a solution of dithizone in 1,1,1-trichloroethane. Spectrophotometric measurement of the red colour of the lead dithizonate at a wavelength of about 520 nm.

SDO ISO: International Organization for Standardization
Document Number ISO 3856
Publication Date Dec. 15, 1984
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 35/SC 2/WG 10
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