MT 49 - Stability of tar and petroleum products - undiluted
Content Handbook F
Ouline of method
49.1 Tar oils - miscible and stock emulsion type
The sample is added to GB Standard Water, stirred, allowed to stand for 4 h and, after gentle stirring, poured through a sieve which is then examined for traces of separated oil.
49.2 Petroleum oil - miscible type