1. Rules for the preparation of detail specifications for low noise signal amplifier tubes of assessed quality with integral permanent magnet focusing. (31st May 1974) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (21 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Specification for klystrons of assessed quality: generic data and methods of test. (28th September 1979) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (53 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
3. Ophthalmic optics. Spectacle lenses. Vocabulary. (15th August 1999) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (74 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
4. Emergency lighting. Specification for component parts of optical fibre systems Part 5, (15th July 1999) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (18 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
5. Ophthalmic optics. Spectacle lenses. Short wavelength visible solar radiation and the eye. (28th September 2018) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (36 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
6. Harmonized system of quality assessment for electronic components. Generic specification: cathode ray tubes. (31st October 1980) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (52 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
7. Optics and optical instruments. Optical transfer function. Principles and procedures of measurement. (15th March 1996) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (28 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
8. Ultrasonics. Transducers. Definitions and measurement methods regarding focusing for the transmitted fields. (10th February 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (118 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗