21. Cellulosic papers for electrical purposes. Specifications for individual materials. Electrolytic capacitor paper Part 3.4, (30th June 1980) 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) ↗
22. Chemicals used for treatment of water intended for human consumption. Ammonium sulfate. (15th July 1999) 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) ↗
23. Chemicals used for treatment of water intended for human consumption. Ammonium sulfate. (28th April 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (22 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
24. Chemicals used for treatment of water intended for human consumption. Tetrapotassium pyrophosphate. (15th February 1998) 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) ↗
25. Common test methods for cables under fire conditions. Tests on gases evolved during combustion of materials from cables. Procedures. Determination of degree of acidity of gases for cables by determination of the weighted average of pH and conductivity Part 2-3, (15th September 1999) 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) ↗
26. Common test methods for cables under fire conditions. Tests on gases evolved during combustion of materials from cables. Procedures. Determination of degree of acidity of gases for materials by measuring pH and conductivity Part 2-2, (15th September 1999) 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) ↗
27. Copper/chromium/arsenic preparations for wood preservation. (15th December 1999) 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) ↗
28. Corrosion protection. Carbon and low alloy steels for use in hydrogen sulfide containing environments in oil and gas production. Materials and test methods. Guidelines. (15th July 2001) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (50 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
29. Dentistry. Toothpastes. Requirements, test methods and marking. (15th July 1996) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (22 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
30. Electrochemical analyzers. Method for specifying performance of pH value analyzers Part 2, (31st December 1984) 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) ↗