251. Specification for measurement of impact velocity in collision tests on road vehicles. (31st January 1977) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (8 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
252. Specification for quantities, units and symbols. Light and related electromagnetic radiations Part 6, (15th March 1993) 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) ↗
253. Specification for quantities, units and symbols. Light and related electromagnetic radiations Part 6, (1st July 1989) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (17 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
254. Specification for radio disturbance and immunity measuring apparatus and methods. Radio disturbance and immunity measuring apparatus. Antenna calibration sites and reference test sites for 5 MHz to 18 GHz Part 1-5, (2nd October 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (100 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
255. Specification for radio disturbance and immunity measuring apparatus and methods. Radio disturbance and immunity measuring apparatus. Antennas and test sites for radiated disturbance measurements Part 1-4, (8th June 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (170 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
256. Specification for uninterruptible power systems (UPS). EMC requirements Part 2, (15th September 1996) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (30 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
257. Switches for household and similar fixed electrical installations. Particular requirements. Remote-control switches (RCS) Part 2-2, (15th February 1998) 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) ↗
258. Telecommunications bonding networks for buildings and other structures. (5th March 2020) 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) ↗
259. Thermal energy meters. Pattern approval tests Part 4, (13th September 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (80 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
260. Tracked Changes. Aerospace series. Cables, electrical, for general purpose. Operating temperatures between -55 °C and 200 °C. DRP (pair) DRT (3 cores) DRQ (4 cores) family, multicore UV laser printable jacketed cable. Product standard Part 008, (21st December 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) ↗