International Standard
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
Reference number
ISO 3856-1:1984
Edición 3
1984-12
International Standard
Vista previa
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ISO 3856-1:1984
9422
No disponible en español
Publicado (Edición 3, 1984)
Esta norma se revisó y confirmó por última vez en 2023. Por lo tanto, esta versión es la actual.

ISO 3856-1:1984

ISO 3856-1:1984
9422
Formato
Idioma
CHF 42
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Resumen

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 an 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.

Informaciones generales

  •  : Publicado
     : 1984-12
    : Norma Internacional confirmada [90.93]
  •  : 3
     : 6
  • ISO/TC 256
    87.040 
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