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ISO 760:1978

Determination of water — Karl Fischer method (General method)

Dec 1, 1978

General information

90.93     Jul 9, 2021

ISO

ISO/TC 47

International Standard

71.040.40  

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Scope

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.

Life cycle

NOW

PUBLISHED
ISO 760:1978
90.93 Standard confirmed
Jul 9, 2021

National adoptions

SRPS ISO 760:2017  
ISS

Determination of water — Karl Fischer method (General method)

90.93   Standard confirmed

H047 more

SRPS H.B8.032:1984  
ISS

Determination of water — Karl Fischer method (General method)

95.99   Withdrawal of Standard

H047 more