Bl This standard establishes the method for determining the content of organically combined sulfuric anhydride in surfactants based on sulfated oils or sulfuric alcohols or other rich sulfuric esters, exclusively. B-2 With the method prescribed in this standard, the sulfur linked directly to carbon, that is, the true sulfonate, is not determined.
IRAM 25 590-1959 history
1959IRAM 25 590-1959 Surfactant. Method for determination of sulfur anhydrides in oils and sulfated fatty alcohols from organic synthesis