1. Methods of sampling and test for sodium and potassium silicates for industrial use. Preparation of solutions of not readily soluble products and determination of matter insoluble in water Part 6, (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) ↗
2. Methods of test for spices and condiments. Determination of non-volatile ether extract Part 6, (30th January 1981) 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) ↗
3. Methods of testing refractory materials. General and textural properties. Sieve analysis (methods 1902-303) Part 3.3, (29th May 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) ↗
4. Methods of testing water used in industry. Dissolved solids: gravimetric method (after evaporation) Part 121, (30th June 1981) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (2 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗