Withdrawn
The test sample is treated with sulphuric acid solution in a conical flask in boiling water bath for 3 h. The colour is measured by the method specified in ISO 2211. The results are expressed in Hazen units. - ISO 1389, Parts 1 to 11, replace ISO Recommendation R 1389-1970.
WITHDRAWN
SRPS H.B8.418:1985
95.99
Withdrawal of Standard
Jan 28, 2013