31. Methods of sampling and test for sodium hydroxide for industrial use. Determination of copper content Part 12, (27th February 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) ↗
32. Methods of sampling and test for sodium hydroxide for industrial use. Determination of iron content Part 3, (27th February 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) ↗
33. Methods of sampling and test for sodium hydroxide for industrial use. Determination of silica content Part 4, (27th February 1981) 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) ↗
34. Methods of test for acid-grade fluorspar. Determination of silica content Part 7, (30th June 1987) 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) ↗
35. Methods of test for acid-grade fluorspar. Determination of total phosphorus content Part 6, (29th June 1990) 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) ↗
36. Methods of test for aluminium oxide. Determination of boron content Part 19, (28th February 1986) 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) ↗
37. Methods of test for aluminium oxide. Determination of fluorine content Part 17, (28th February 1986) 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) ↗
38. Methods of test for aluminium oxide. Determination of phosphorus content Part 18, (28th February 1986) 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) ↗
39. Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use. Determination of chromium content of boric acid, boric oxide and disodium tetraborates Part 14, (28th February 1979) 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) ↗
40. Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use. Determination of copper content of boric acid, boric oxide and $7Idi$7Rsodium tetraborates Part 7, (28th February 1979) 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) ↗