31. Direct acting indicating analogue electrical measuring instruments and their accessories. Special requirements for wattmeters and varmeters Part 3, (7th 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) ↗
32. Direct acting indicating analogue electrical measuring instruments and their accessories. Specification for special requirements for accessories Part 8, (31st August 1990) 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) ↗
33. Direct acting indicating analogue electrical measuring instruments and their accessories. Specification for special requirements for ammeters and voltmeters Part 2, (31st August 1990) 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) ↗
34. Direct acting indicating analogue electrical measuring instruments and their accessories. Specification for special requirements for frequency meters Part 4, (31st August 1990) 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) ↗
35. Direct acting indicating analogue electrical measuring instruments and their accessories. Specification for special requirements for ohmmeters (impedance meters) and conductance meters Part 6, (31st August 1990) 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) ↗
36. Direct acting indicating analogue electrical measuring instruments and their accessories. Specification for special requirements for phase meters, power factor meters and synchroscopes Part 5, (31st August 1990) 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) ↗
37. Direct acting indicating analogue electrical measuring instruments and their accessories. Specification for special requirements for wattmeters and varmeters Part 3, (31st August 1990) 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) ↗
38. Electrical apparatus for the detection and measurement of combustible gases. Performance requirements for Group II apparatus indicating up to 100% (V/V) gas. (15th January 1999) 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) ↗
39. Electrical protection relays. Requirements for the principal families of protection relays. Specification for thermal electrical relays Part 2-2.3, (31st May 1991) 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) ↗
40. Electromagnetic compatibility. Basic immunity standard. Conducted disturbances induced by radio-frequency fields. Immunity test. (15th April 1994) 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) ↗