ISO 5310:1986
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.
OEN:
ISO
Langue:
English
Code(s) de l'ICS:
65.080
Statut:
Annulée
Date de Publication:
1986-12-17
Numéro Standard:
ISO 5310:1986