241. Pumps. Rotodynamic pumps. Circulation pumps having an electrical effect not exceeding 200 W for heating installations and domestic hot water installations. Requirements, testing, marking. (15th December 1999) 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) ↗
242. Microfilming of technical drawings and other drawing office documents. Test procedures for diazo duplicating of microfilm images in aperture cards Part 5, (15th November 1999) 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) ↗
243. Specification for safety and rational use of energy of domestic gas appliances. Radiant/convectors Part 1, (18th December 2002) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (84 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
244. Industrial valves. Check valves of thermoplastics materials. (3rd September 2019) 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) ↗
245. Electricity meters. Alternating-current single-phase static watt-hour telemeters of accuracy class 1 or 2. (15th May 2000) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (10 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
246. Heating boilers. Heating boilers with forced draught burners. Specific requirements for the domestic hot water operation and energy performance of water heaters and combination boilers with atomizing oil burners of nominal heat input not exceeding 70 kW Part 6, (23rd August 2019) 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) ↗
247. Radio equipment used in mobile services. Methods of measurement. Data equipment Part 6, (15th March 2000) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (150 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
248. Power cables with XLPE insulation and metallic sheath, and their accessories, for rated voltages from 66 kV (U m =72.5 kV) to 132kV (U m =145kV). Requirements and test methods. (5th November 2001) 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) ↗
249. Household and similar electrical appliances. Safety. Particular requirements for blankets, pads, clothing and similar flexible heating appliances Part 2-17, (30th August 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (68 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
250. BS EN IEC 62281 AMD1. Safety of primary and secondary lithium cells and batteries during transport. (29th August 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (4 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗