BS 2000-136-1:1998 Methods of test for petroleum and its products. Determination of saponification number. Colour-indicator titration method. Section 136.1: Colour-indicator titration method
1998BS 2000-136-1:1998 Methods of test for petroleum and its products. Determination of saponification number. Colour-indicator titration method. Section 136.1: Colour-indicator titration method