21. Methods of sampling and test for anhydrous hydrogen fluoride for industrial use. Determination of hexafluorosilicic acid content Part 4, (31st January 1979) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (7 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
22. Methods of sampling and test for anhydrous hydrogen fluoride for industrial use. Determination of non-volatile acid content: titrimetric method Part 2, (30th June 1976) 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) ↗
23. Methods of sampling and test for aqueous hydrofluoric acid for industrial use. (30th October 1981) 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) ↗
24. Methods of testing vulcanized rubber. Preparation and examination of water extract Part B19, (1st February 1961) 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) ↗
25. Motivations of offenders who carry and use acid and other corrosives in criminal acts. (2021) Other Names: (Lecturer in criminology), Hopkins, Matt; Neville, Lucy, 1983-; Sanders, Teela; Great Britain., Home Office. Record Type: Book Extent: 1 online resource
26. Photography. Processed silver-gelatin type black-and-white film. Specifications for stability. (15th May 1995) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (24 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
27. Photography. Thermally processed silver microfilm. Specifications for stability. (15th November 1999) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (24 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
28. Powder metallurgical materials and products. Methods of sampling and testing metallic powders. Determination of acid-insoluble content in iron, copper, tin and bronze powders Part 2-2.9, (29th February 1980) 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) ↗
29. Preparation of steel substrates before application of paints and related products. Tests for the assessment of surface cleanliness. Extraction of soluble contaminants for analysis by acid extraction Part 15, (11th September 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (20 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
30. Raw optical glass. Resistance to attack by aqueous acidic solutions. Test method and classification. (1st August 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (26 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗