451. Railway applications. Rolling stock. Pantographs. Characteristics and tests. Pantographs for main line vehicles Part 1, (29th February 2012) 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) ↗
452. Power transformers. General Part 1, (31st July 2012) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (78 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
453. Electric and optical fibre cables. Test methods for non-metallic materials. Miscellaneous tests. Loss of mass test for thermoplastic insulations and sheaths Part 409, (31st July 2012) 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) ↗
454. Electric and optical fibre cables. Test methods for non-metallic materials. Miscellaneous tests. Resistance to stress cracking of polyethylene and polypropylene compounds Part 406, (31st July 2012) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (20 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
455. Ductile iron fittings for PVC-U or PE piping systems. Requirements and test methods. (30th November 2015) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (56 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
456. Household and similar electrical appliances. Safety. Particular requirements for blankets, pads, clothing and similar flexible heating appliances Part 2-17, (30th April 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (66 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
457. Explosive atmospheres. Equipment protection by type of protection "n" Part 15, (3rd May 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (40 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
458. Secondary batteries (except lithium) for the propulsion of electric road vehicles. Performance and endurance tests. (28th February 2013) 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) ↗
459. Digital addressable lighting interface. General requirements. Control gear Part 102, (7th February 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (88 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
460. Radio-frequency connectors. Sectional specification for RF coaxial connectors with blind-mate coupling. Characteristic impedance 50 Ω (type SBMA) Part 58, (14th March 2018) 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) ↗