51. Methods of testing water used in industry. Fluoride: spectrophotometric method (alizarin fluorine blue) Part 108, (31st May 1979) 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) ↗
52. 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) ↗
53. Nickel, ferronickels and nickel alloys. Determination of phosphorus content. Phosphovanadomolybdate spectrophotometric method. (2nd February 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (16 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
54. Photography. Determination of residual thiosulfate and other related chemicals in processed photographic materials. Methods using iodine-amylose, methylene blue and silver sulfide. (15th March 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) ↗
55. Rubber latices. Methods of test. Determination of boric acid content of natural rubber latex concentrate Part 3.12, (15th August 1992) 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) ↗
56. Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of aluminium. Permanent magnet alloys: volumetric method Part 3.1.6, (20th December 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) ↗
57. Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of aluminium. Steel and cast iron: spectrophotometric method Part 3.1.2, (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) ↗
58. Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of cobalt. Steel and cast iron: spectrophotometric method Part 3.11.1, (20th December 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) ↗
59. 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) ↗
60. 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) ↗