International Standard
ISO 760:1978
Determination of water — Karl Fischer method (General method)
Reference number
ISO 760:1978
Edición 1
1978-12
International Standard
Vista previa
ISO 760:1978
5037
No disponible en español
Publicado (Edición 1, 1978)
Esta norma se revisó y confirmó por última vez en 2021. Por lo tanto, esta versión es la actual.

ISO 760:1978

ISO 760:1978
5037
Idioma
Formato
CHF 63
Convertir Franco suizo (CHF) a tu moneda

Resumen

Two methods of titration depending on whether the end point is detected visually or electrometrically are specified. The visual method is only applicable to colourless solutions but can be used when no electrometric apparatus is available. The electrometric method, whether by direct titration or back-titration, is the more accurate one and for this reason recommended. The principle of the test consists in reaction of any water present in a test portion with a solution of iodine and sulphur dioxide in a pyridine/methanol mixture (Karl Fischer reagent), previously standardized by titration with an exactly known mass of water.

Informaciones generales

  •  : Publicado
     : 1978-12
    : Norma Internacional confirmada [90.93]
  •  : 1
     : 12
  • ISO/TC 47
    71.040.40 
  • RSS actualizaciones

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