1. Methods of test for desiccants. Determination of water-soluble sulphates content Part 5, (31st July 1991) 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) ↗
2. Methods of test for petroleum and its products. Sulphur in petroleum products (lamp method) Part 107, (28th February 1991) 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) ↗
3. Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of silicon. Acid-resisting high silicon iron: gravimetric method Part 3.26.2, (29th November 1991) 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) ↗
4. Specification for salt for spreading on highways for winter maintenance. (30th August 1991) 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) ↗