1. Code of practice for determining the design of learning spaces where audio-visual equipment will be used. (31st July 1985) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (43 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Fibre optic communication subsystem basic test procedures. Test procedures for digital systems. Optical eye pattern, waveform, and extinction ratio Part 2-2, (15th April 1999) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (24 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
3. Fibre optic communication subsystem test procedures. Digital systems. Optical eye pattern, waveform and extinction ratio measurement Part 2-2, (31st March 2015) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (32 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
4. Ophthalmic optics. Contact lenses. Measurement methods Part 3, (30th April 2018) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (48 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
5. Ophthalmic optics. Semi-finished spectacle lens blanks. Specifications for single-vision and multifocal lens blanks Part 1, (15th August 1996) 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) ↗
6. Spectacle lenses. Specifications for progressive power semi-finished lens blanks Part 5, (15th September 1992) 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) ↗