1. Light microscopes. Specification for spectral filters Part 6, (31st August 1990) 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. Light microscopes. Specification for surface marked graticules for eyepieces Part 8, (31st August 1990) 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. Light microscopes. Specification for the magnifying power of microscope imaging components Part 1, (31st August 1990) 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) ↗