1. ASTM E 387–84 (1995) Standard Test Method for Stray Radiant Power Ratio of Spectrophotometers by the Opaque Filter Method. (This standard is likely to be revised in 2004.)
2. Practical Hints on Absorption Spectrometry;Edisbury,1966
3. Standards and Best Practice in Absorption Spectrometry;Fleming,1999
4. Advances in Standards and Methodology in Spectrophotometry;Kaye,1987