Reference number
ISO 7252:1984
International Standard
ISO 7252:1984
Paints and varnishes — Determination of total mercury — Flameless atomic absorption spectrometric method
Edition 1
1984-11
Read sample
ISO 7252:1984
13906
Published (Edition 1, 1984)
This publication was last reviewed and confirmed in 2018. Therefore this version remains current.

ISO 7252:1984

ISO 7252:1984
13906
Language
Format
CHF 42
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Abstract

The reference method described is applicable to products having total mercury contents in the range of about 0.01 % (m/m) to 0.5 % (m/m). May also be extended to products with a total content of more than 0.5 % (m/m). The principle of the method consists in the combustion of the test portion with oxygen in an enclosed system. Reduction of the mercury(II) compounds contained in the resulting solution to elementary mercury. Entrainment of the metal in a gas stream at ambient temperature and determination as the monoatomic vapour by cold vapour atomic absorption spectrometry at a wavelength in the region of 253.7 nm.

General information

  •  : Published
     : 1984-11
    : Close of review [90.60]
  •  : 1
     : 6
  • ISO/TC 256
    87.040 
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Life cycle

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