Résumé
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.
Informations générales
-
État actuel: PubliéeDate de publication: 1981-08Stade: Norme internationale confirmée [90.93]
-
Edition: 1Nombre de pages: 3
-
Comité technique :ISO/TC 34/SC 3ICS :67.080.01
- RSS mises à jour
Cycle de vie
Vous avez une question?
Consulter notre Aide et assistance
Service à la clientèle
+41 22 749 08 88
Horaires d’ouverture:
De lundi à vendredi - 09:00-12:00, 14:00-17:00 (UTC+1)