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
-
Estado: PublicadoFecha de publicación: 1981-08Etapa: Norma Internacional confirmada [90.93]
-
Edición: 1Número de páginas: 3
-
Comité Técnico :ISO/TC 34/SC 3ICS :67.080.01
- RSS actualizaciones