IS 1448 : Part 105 : 1981 Methods of test for petroleum and its products: Part 105 Ultraviolet (UV) absorbance and absorptivity of petroleum products

1 Scope

1.1 This method covers the measurement of the ultravioletabsorption of a variety of petroleum products. It covers theabsorbance of liquids or the absorptivity of liquids and solids, orboth, at wavelengths in the region 220 to 400 nm of the spectrum.

1.2 The use of this method implies that the conditions ofmeasurement - wavelength, solvent if any, sample path length andsample concentration - are specified by reference to one of theexamples of the application of this method in the appendices or bya statement of other conditions of measurement.

1.3 Examples of the application of this method are thedetermination of the absorbance of white mineral oil, theabsorptivity of refined petroleum wax, the absorptivity ofpetrolatum and the absorptivity of nonstaining rubber processing orextender oils.