1.1 This method covers the measurement of the ultraviolet absorption of a variety of petroleum products. It covers the absorbance of liquids or the absorptivity of liquids and solids, or both, at wavelengths in the region 220 to 400 nm of the spectrum.
1.2 The use of this method implies that the conditions of measurement — wavelength, solvent if any, sample path length and sample concentration — are specified by reference to one of the examples of the application of this method in the appendices or by a statement of other conditions of measurement.
1.3 Examples of the application of this method are the determination of the absorbance of white mineral oil, the absorptivity of refined petroleum wax, the absorptivity of petrolatum and the absorptivity of nonstaining rubber processing or extender oils ( see Appendices A, B, C and D ).
IS 1448 Pt.105-1981 history
1981IS 1448 Pt.105-1981 Test methods for petroleum and its products [P: 105] Ultraviolet (UV) absorption and absorbance of petroleum products