1. Adhesives. Determination of pH. Test method. (15th March 1999) 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. Specification for laboratory pH meters. (30th June 1978) 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) ↗
3. Water quality. Physical, chemical and biochemical methods. Determination of pH Part 2.50, (15th August 1995) 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) ↗