51. Specification for electro-acoustical measuring equipment for aircraft noise certification. (31st January 1979) 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) ↗
52. Specification for integrating-averaging sound level meters. (30th April 1986) 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) ↗
53. Specification for microform readers. (30th June 1976) 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) ↗
54. Specification for school television receivers and stands. (29th October 1976) 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) ↗
55. Specification for school television receivers and stands. Colour television receivers (29th October 1976) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (7 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
56. Survey of Resolutions of the CENELEC General Assembly. (14th April 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (50 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
57. Survey of Resolutions of the CENELEC General Assembly. (31st May 2014) 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) ↗
58. Tensile testing of metallic materials. Verification of the force measuring system of the tensile testing machine Part 2, (28th February 1992) 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) ↗
59. Tracked Changes. Hydraulic fluid power. Calibration of automatic particle counters for liquids. (7th July 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (140 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
60. Tracked Changes. Photography. Electronic still picture imaging. Resolution and spatial frequency responses. (13th March 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (196 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗