Résumé
The method consists in acidifying and heating a test portion, entraining, in a current of nitrogen, the gas liberated, absorbing and oxidizing the gas by bubbling it through a neutral, dilute hydrogen peroxide solution, then determining the sulphuric acid thus formed using standard volumetric sodium hydroxide solution. Verification of the determination is described in the annexes A and B, respectively.
Informations générales
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État actuel: PubliéeDate de publication: 1981-09Stade: Norme internationale confirmée [90.93]
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Edition: 1Nombre de pages: 7
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Comité technique :ISO/TC 34/SC 3ICS :67.080.01
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