Résumé
The method is applicable to sodium contents equal to or greater than 0.05 % (m/m). The principle of the procedure consists in the fusion, at a controlled temperature, of a test portion with a mixture oflithium carbonate and boron trioxide or a mixture of lithium carbonate and lithium tetraborate. Dissolution of the fused mass in hydrochloric acid. Aspiration of the solution into a flame and spectrophotometric measurement of the intensity of the light emitted at a wavelength of 589 nm. - Replaces ISO Recommendation R 1617-1970.
Informations générales
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État actuel: AnnuléeDate de publication: 1976-09Stade: Annulation de la Norme internationale [95.99]
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Edition: 1Nombre de pages: 5
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Comité technique :ISO/TC 226ICS :71.100.10
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