Resumen
The method consists in precipitating of potassium ions by an excess of sodium tetraphenylborate (NaTPB) in a weakly alkaline medium, filtrating and determing of the unused NaTPB by back titration with cetyltrimethylammoniumbromide solution. The test solution shall be prepared as specified in ISO 5317 or ISO 7407.
Informaciones generales
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Estado: RetiradaFecha de publicación: 1986-12Etapa: Retirada de la Norma Internacional [95.99]
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Edición: 1Número de páginas: 4
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Comité Técnico :ISO/TC 134ICS :65.080
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