Resumen
After incineration of the product at 525 +/- 25 degrees centigrade the method consists in a) in the case of total ash: addition of an excess of standard volumetric sulphuric acid solution and back titration with standard volumetric sodium hydroxide solution, b) in the case of water-soluble ash: extraction of the ash with hot water and neutralization of the aqueous extract with standard volumetric sulphuric acid solution.
Informaciones generales
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Estado: PublicadoFecha de publicación: 1981-08Etapa: Cierre de la revisión [90.60]
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Edición: 1Número de páginas: 3
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Comité Técnico :ISO/TC 34/SC 3ICS :67.080.01
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