International Standard
ISO 3856-4:1984
Paints and varnishes — Determination of "soluble" metal content — Part 4: Determination of cadmium content — Flame atomic absorption spectrometric method and polarographic method
Reference number
ISO 3856-4:1984
Edición 2
1984-10
© ISO 2024
International Standard
Vista previa
No disponible en español
Publicado (Edición 2, 1984)
Esta norma se revisó y confirmó por última vez en 2023. Por lo tanto, esta versión es la actual.

ISO 3856-4:1984

Formato
Idioma
CHF 42
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Resumen

The principle of the AAS method consists in inspiration of the test solution into an acetylen/air flame. Measurement of the absorption of the selected spectral line emitted by a cadmium hollow-cathode or cadmium discharge lamp, in the region of 228,8 nm. The principle of the polarographic method consists in electrolysis of the test solution in a polarographic cell measurement of the corresponding heigth of the potential step. The method are applicable to coating materials having "soluble" cadmium contents in the range of about 0,05 % (m/m) to 5 % (m/m). The AAS method should be used as the referee method in cases of dispute. This second edition cancels and replaces ISO 3856/4-1980.

Informaciones generales

  • Estado
     : Publicado
    Fecha de publicación
     : 1984-10
    Etapa
    : Norma Internacional confirmada [90.93]
  • Edición
     : 2
    Número de páginas
     : 6
  • Comité Técnico :
    ISO/TC 256
    ICS :
    87.040 
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