71. BS ISO 14490-5. Optics and photonics. Test methods for telescopic systems. Part 5. Test methods for transmittance (9th October 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (22 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
72. Measurement procedures for materials used in photovoltaic modules. Encapsulants. Measurement of optical transmittance and calculation of the solar-weighted photon transmittance, yellowness index, and UV cut-off wavelength Part 1-4, (4th December 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (26 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
73. Tracked Changes. Ophthalmic optics. Uncut finished spectacle lenses. Transmittance specifications and test methods Part 3, (1st August 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (112 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
74. Eye and face protection. Sunglasses and related eyewear. Sunglasses for general use Part 1, (20th September 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (44 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
75. Ophthalmic optics. Uncut finished spectacle lenses. Transmittance specifications and test methods Part 3, (13th July 2022) 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) ↗
76. Personal eye-protection equipment. Filters and eye-protectors against laser radiation (laser eye-protectors). (31st March 2017) 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) ↗
77. Tracked Changes. Optics and photonics. Test methods for telescopic systems. Test methods for transmittance Part 5, (9th March 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (50 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
78. Specification for personal eye-protectors used for adjustment work on lasers and laser systems. (15th January 1994) 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) ↗
79. Generic specification for optical fibres. (15th January 1994) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (188 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
80. Eye and face protection for sports use. Requirements for eye protectors for squash and eye protectors for racquetball and squash 57 Part 2, (6th April 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (34 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗