SIST ISO 760:1995

Oznaka standarda: SIST ISO 760:1995
Koda projekta: 005037
Organizacija: SIST
Naslov (angleški): Determination of water -- Karl Fischer method (General method)
Naslov (slovenski): Določanje vode - Karl Fischerjeva metoda (Splošna metoda)
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SIST ISO 760:1995 angleški jezik Active SIST-D: 53.24 EUR
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Tehnični odbor: I12 - Imaginarni 12 Imaginarni TC za ISO področje - vzdrževani privzeti ISO standardi
ICS: 71.040.40
Status: Objavljen
Objavljen: 01-avg-1995
Refer. št. objave: Sporocila 1995-08-01
Referenčna oznaka: ISO 760:1978
Področje projekta (angleško): 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.

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