481. Building hardware. Emergency exit devices operated by a lever handle or push pad, for use on escape routes. Requirements and test methods. (31st March 2008) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (64 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
482. Insulators of ceramic material or glass for overhead lines with a nominal voltage greater than 1000 V. Methods of test Part 1, (31st May 1982) 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) ↗
483. Specification for current transformers. (2nd February 1973) 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) ↗
484. Specification for safety of household and similar electrical appliances. General requirements Part 1, (31st December 1969) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (74 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
485. Specification for radio-frequency cables. General requirements and tests. British Government Services requirements (29th March 1968) 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) ↗
486. Specification for voltage transformers. (29th August 1975) 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) ↗
487. Specification for safety of household and similar electrical appliances. Complete particular specifications. Portable immersion heaters Part 3.21, (27th February 1981) 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) ↗
488. Safety of electrical commercial catering equipment. Specification for ranges, ovens and hob elements Part 1, (31st December 1979) 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) ↗
489. BS EN IEC 60598-1 AMD AA. Luminaires. Part 1. General requirements and tests (23rd April 2021) 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) ↗
490. Glass-reinforced thermosetting plastics (GRP) pipes and fittings. Test methods to prove the design of locked socket-and-spigot joints, including double-socket joints, with elastomeric seals. (12th May 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (24 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗