Norm

ISO 760:1978 en

Determination of water - Karl Fischer method (General method)

48,19

Over deze norm

Status Definitief
Aantal pagina's 12
Gepubliceerd op 01-12-1978
Taal Engels
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.

Details

ICS-code 71.040.40
Nederlandse titel Determination of water - Karl Fischer method (General method)
Engelse titel Determination of water - Karl Fischer method (General method)

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