1. General methods of chemical analysis. Method for determination of iron content (1, 10-phenanthroline spectrophotometric method) Part 3, (31st January 1983) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (12 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. General methods of chemical analysis. Method for determination of silicon content (reduced molybdosilicate spectrophotometric method) Part 2, (31st January 1983) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (14 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
3. Methods of testing water used in industry. Long-chain fatty amines: spectrophotometric method Part 117, (31st May 1983) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (4 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗