31. Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use. Determination of fluorine content Part 9, (30th January 1976) 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) ↗
32. Methods of testing water used in industry. Copper and iron Part 1, (6th August 1964) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (18 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
33. Safety of toys. Migration of certain elements Part 3, (29th April 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (66 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
34. Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of cobalt. Steel, irons and steelmaking materials: spectrophotometric method for trace amounts Part 3.11.2, (20th December 1991) 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) ↗
35. Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of lead. Steel: spectrophotometric method for trace amounts Part 3.16.3, (29th November 1991) 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) ↗
36. Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of nitrogen. Steel: spectrophotometric method (for trace amounts) Part 3.22.3, (30th September 1986) 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) ↗
37. Soil quality. Chemical methods. Extraction of trace elements soluble in aqua regia Part 3.9, (15th October 1995) 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) ↗
38. Soil, treated biowaste and sludge. Determination of adsorbed organically bound halogens (AOX). (31st January 2022) 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) ↗
39. Specification for assessment of the potential for metallic materials to affect adversely the quality of water intended for human consumption. (15th October 1994) 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) ↗
40. Specification for suitability of metallic materials for use in contact with water intended for human consumption with regard to their effect on the quality of the water. (28th June 1991) 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) ↗