1. Analysis of iron ores. Method for the determination of water soluble chloride content. Ion-selective electrode method Part 20, (31st October 1990) 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) ↗
2. Water quality. Physical, chemical and biochemical methods. Determination of fluoride: electrochemical probe method for potable and lightly polluted water Part 2.41, (15th March 1993) 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) ↗