21. Tracked Changes. Nuclear energy. Reference beta-particle radiation. Calibration fundamentals related to basic quantities characterizing the radiation field Part 2, (15th September 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (121 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
22. Tracked Changes. Nuclear energy. Reference beta-particle radiation. Methods of production Part 1, (13th March 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (68 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
23. Tracked Changes. Paints and varnishes. Determination of film thickness. (1st October 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (125 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
24. Water quality. Radiological methods. Measurement of gross beta activity in non-saline water Part 3.2, (15th March 1993) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (12 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗