191. Poly(methyl methacrylate) sheets. Types, dimensions and characteristics. Melt-caldendered extruded sheets Part 2, (15th March 1997) 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) ↗
192. Protective clothing. Enhanced visibility equipment for medium risk situations. Test methods and requirements. (30th September 2020) 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) ↗
193. Quantities and units. Light and radiation Part 7, (30th August 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (46 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
194. Railway applications. Windscreens for trains. (22nd August 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (62 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
195. Raw optical glass. Vocabulary. (8th July 2022) 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) ↗
196. Recommendations for measurement of the veiling glare index of lenses and optical systems. (27th November 1973) 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) ↗
197. Road vehicles. Safety glazing materials. Method for the determination of solar transmittance. (12th October 2021) 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) ↗
198. Road vertical signs. Variable message traffic signs. (29th April 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (130 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
199. Semiconductor devices. Micro-electromechanical devices. Four-point bending test method for interfacial adhesion energy of layered MEMS materials Part 31, (17th April 2019) 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) ↗
200. Semiconductor devices. Optoelectronic devices. Semiconductor lasers Part 5-4, (20th June 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (42 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗