Aktívna norma | Vydaná: 01.12.1978

ISO 760:1978

Determination of water — Karl Fischer method (General method)
(Dosage de l´eau — Méthode de Karl Fischer (Méthode générale))

Dostupné jazyky: Anglicky, Francúzsky

Dostupné prevedenie: Elektronické PDF, Tlačené

od 85.50 EUR zobraziť na eshopu

Podrobné informácie

Označenie: ISO 760:1978

Dátum vydania: 01.12.1978

Stránok: 12

Krajina: Medzinárodná technická norma

Kde kúpiť?

Môžete zakúpiť na eshop.normservis.sk

Anotácia

Description / Abstract: 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.

Populárna vydavatelia

celý katalóg