Normas ISO

Surface active agents -- Determination of pH of aqueous solutions -- Potentiometric method

Surface active agents -- Determination of alkalinity -- Titrimetric method

Surface active agents -- Determination of free alkalinity or free acidity -- Titrimetric method

Washing powders -- Determination of total phosphorus(V) oxide content -- Quinoline phosphomolybdate gravimetric method

Surface active agents -- Evaluation of certain effects of laundering -- Methods of analysis and test for unsoiled cotton control cloth

Anionic and non-ionic surface active agents -- Determination of the critical micellization concentration -- Method by measuring surface tension with a plate, stirrup or ring