Entrainment in a current of nitrogen of the gas extracted from the acidified and heated product, and fixing and oxidation of the gas by bubbling through a dilute solution of neutral hydrogen peroxid. Titration of the sulphuric acid formed with standard volumetric sodium hydroxide solution of nephelometric determination in the case of low contents.
WITHDRAWN
SRPS ISO 5379:2000
95.99
Withdrawal of Standard
PUBLISHED
SRPS EN 1185:2008