Withdrawn
The principle consists in the development of a pink colour by heating a test portion containing 1,4-naphtoquinone with tin(II) chloride, and comparison of the colour produced with a series of prepared reference colours. - ISO 1389, Parts 1 to 11, replace ISO Recommendation R 1389-1970.
WITHDRAWN
SRPS H.B8.413:1985
95.99
Withdrawal of Standard
Jan 28, 2013