21. Inorganic fertilizers. Determination of total nitrogen in calcium cyanamide nitrate free. (23rd August 2023) 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) ↗
22. Meat and meat products. Determination of nitrogen content. Reference method. (30th August 2023) 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) ↗
23. Method for determination of carbon residue of petroleum products (Ramsbottom method). (30th June 1980) 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) ↗
24. Method for determination of water in petroleum products and bituminous materials (distillation method). (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) ↗
25. Method for the determination of tar acids in black and white disinfectant fluids. (29th August 1960) 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) ↗
26. Methods for analysis and testing of coal and coke. Ultimate analysis of coal and coke. Determination of nitrogen content Part 106.2, (15th January 1997) 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) ↗
27. Methods for analysis and testing of coal and coke. Ultimate analysis of coal Part 6, (29th April 1977) 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) ↗
28. Methods for analysis of animal feeding stuffs. Determination of nitrogen content and calculation of crude protein content Part 4, (15th February 1998) 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) ↗
29. Methods for analysis of animal feeding stuffs. Determination of nitrogen content and calculation of crude protein content Part 4, (31st August 1981) 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) ↗
30. Methods for analysis of oilseed residues. Determination of isothiocyanates and vinyl thiooxazolidone Part 8, (31st January 1984) 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) ↗