1. Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of tungsten. Ferrotungsten: gravimetric method Part 3.33.3, (28th February 1985) 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. Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of tin. Ferrotungsten and tungsten metal: volumetric method Part 3.31.2, (15th June 1992) 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) ↗