Reference number
ISO 6503:1984
International Standard
ISO 6503:1984
Paints and varnishes — Determination of total lead — Flame atomic absorption spectrometric method
Edition 1
1984-10
Preview
ISO 6503:1984
12880
No disponible en español
Publicado (Edición 1, 1984)
Esta publicación se revisó y confirmó por última vez en 2024. Por lo tanto, esta versión es la actual.

ISO 6503:1984

ISO 6503:1984
12880
Idioma
Formato
CHF 42
Convertir Franco suizo (CHF) a tu moneda

Resumen

The method is principle to coating materials having lead contents in the range of about 0,01 % (m/m) to 2 % (m/m), may also be applicable to products with a total lead content of more than 2 % (m/m) when the requirements of precision does not exceed the specified values. two methods are given. The principle of the dry ashing method consists in evaporation of a test portion to dryness and ashing at 475 C and extraction of any lead in the residue with hydrochloric acid; that of the wet oxidation method consists in wet oxidation of a test portion with a mixture of sulfuric acid and hydrogen peroxide or with sulfuric acid and nitric acid and extraction of any lead in the residue with EDTA and ammonia solution.

Informaciones generales

  •  : Publicado
     : 1984-10
    : Norma Internacional confirmada [90.93]
  •  : 1
     : 6
  • ISO/TC 256
    87.040 
  • RSS actualizaciones

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