ISO-3856-7 › Paints and varnishes - Determination of soluble metal content - Part 7 : Determination of mercury content of the pigment portion of the paint and of the liquid portion of water-dilutable paints - Flameless atomic absorption spectrometric method
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The principle consists in oxidation of the of hte mercury compounds contained in the test solution obtained from the pigment portion of the paint or combustion with oxygen in an enclosed system of the evaporation residue of the test solution obtained from the liquid portion of water-dilutable paints. Reduction of the mercury(II) compounds to elementary mercury. Determination of the mercury, as the monoatomic vapour, by cold vapour (flameless) atomic absorption spectrometry at a wavelength in the region of 253,7 nm. The method is applicable to coating materials having "soluble" mercury contents in the range of about 0,005 % (m/m) to 0,05 % (m/m).
To find similar documents by classification:
87.040 (Paints and varnishes Including coating powders, paint coatings and protective paint systems)
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Document Number
ISO 3856-7:1984
Revision Level
1ST EDITION
Status
Current
Publication Date
Dec. 15, 1984
Committee Number
ISO TC 35/SC 2/WG 10