ISO/AWI 10702

En desarrollo

Un grupo de trabajo ha preparado un borrador.

Reemplazará ISO 10702:1993

Resumen

The principle of the method specified is dissolving a test portion in hydrochloric acid followed by oxidation with hydrogen peroxide, fuming of the acid-insoluble residue in sulfuric acid with potassium sulfate and copper(II) sulfate, distilling the solution made alkaline with sodium hydroxide, collecting ammonia in a receiver containing orthoboric acid solution, titration of the ammonium ion with amidosulfuric acid. Is applicable to nitrogen contents from 0,002 % (m/m) to 0,5 % (m/m); does not apply to samples containing silicon nitride.

Informaciones generales

Estado
: En desarrollo

Etapa
: Nuevo proyecto registrado en el programa de trabajo TC/SC [20.00]
Edición
: 2
Comité Técnico :
ISO/TC 17/SC 1
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