International Standard
ISO 2366:1974
Cryolite, natural and artificial — Determination of sodium content — Flame emission and atomic absorption spectrophotometric methods
Reference number
ISO 2366:1974
Edición 1
International Standard
Vista previa
ISO 2366:1974
No disponible en español
Publicado (Edición 1, 1974)
Esta norma se revisó y confirmó por última vez en 2022. Por lo tanto, esta versión es la actual.

ISO 2366:1974

ISO 2366:1974
CHF 42
Convertir Franco suizo (CHF) a tu moneda


The methods are applicable as alternatives to products for which the molar ratio NaF/AlF3 is equal to about 3. The principle of the flame emission method consists in atomization of the test solution in a flame of oxygen/hydrogen and determination by measurement of the intensity of the radiation at 589 nm. The principle of the flame atomic absorption method is based on atomization in an air/acetylene flame and measuremnt of the absorption of the 589 nm line emitted by a sodium hollow-cathode lamp. The preparation of the test solution is carried out by dissolution of a test portion in hydrochloric acid and water after attack by concentreted sulphuric acid.

Informaciones generales

  •  : Publicado
     : 1974-11
    : Norma Internacional confirmada [90.93]
  •  : 1
     : 4
  • ISO/TC 226
  • RSS actualizaciones

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