41. Detail specification for medium flat rectangular (4:1) rigid waveguide tubing. Standard wall thickness. General application category. (15th March 1971) 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) ↗
42. Detail specification for ordinary rectangular (2:1) rigid waveguide tubing. Standard wall thickness. General application category. (15th February 1971) 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) ↗
43. Distribution automation using distribution line carrier systems. General considerations. Guide to identification of data transmission parameters concerning medium and low-voltage distribution mains Part 1-4, (15th May 1998) 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) ↗
44. Dynamic modules. Dynamic channel equalizers Part 6-1, (31st March 2011) 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) ↗
45. Dynamic modules. Performance specification templates. Dynamic channel equalizers Part 3-1, (31st August 2016) 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) ↗
46. Dynamic modules. Performance specification templates. Multicast optical switches Part 3-4, (29th June 2018) 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) ↗
47. Dynamic modules. Performance specification templates. Wavelength selective switches Part 3-3, (5th June 2020) 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) ↗
48. Dynamic modules. Performance standards. Dynamic gain tilt equalizer (non-connectorized) Part 1-3, (30th April 2013) 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) ↗
49. Dynamic modules. Performance standards. General conditions Part 1, (3rd May 2019) 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) ↗
50. Electroacoustics. Octave-band and fractional-octave band filters. Pattern evaluation tests Part 2, (12th April 2018) 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) ↗