1. Caprolactam for industrial use. Determination of absorbance at a wavelength of 290 nm. (4th August 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (10 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Caprolactam for industrial use. Determination of colour of 50 % aqueous caprolactam solution, expressed in Hazen units (platinum-cobalt scale). Spectrometric method. (4th August 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (10 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗