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ISO 7059:1982
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ISO 7059:1982 Caprolactam for industrial use -- Determination of absorbance at a wavelength of 290 nm
standard by International Organization for Standardization, 12/01/1982
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Full Description
The spectrometric measurement of the absorbance of a 50 % caprolactam water solution is carried out at a wavelength of 290 nm. The absorbance, expressed in relation to an optical path length of 1 m, is given by a specified formula in which AO is the correction for the difference in absorbances of the cells; A1 is the absorbance of the test solution, and 1 is the optical path length, in centimetres, of the cell.