11. Methods of test for petroleum and its products. Saponifiable and unsaponifiable matter in oils, fats and waxes Part 284, (31st March 1982) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (8 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
12. Petroleum products. Determination of ash. (15th February 1996) 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) ↗
13. Universal Decimal Classification. English full edition. Oils. Fats. Waxes. Adhesives. Gums. Resins (28th September 1979) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (48 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗