51. Ambient air. Determination of asbestos fibres. Indirect-transfer transmission electron microscopy method. (9th October 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (90 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
52. Ambient air. Standard gravimetric measurement method for the determination of the PM10 or PM2, 5 mass concentration of suspended particulate matter. (10th August 2023) 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) ↗
53. Analysis of surface active agents (raw materials). Ethoxylated alcohol and alkylphenol sulphates. Method for estimation of mean relative molecular mass Part 5.2, (31st March 1989) 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. Analytical colorimetry. Saunderson correction, solutions of the Kubelka-Munk equation, tinting strength, depth of shade, hiding power Part 2, (15th February 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (28 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
55. Analytical expression for daily solar profiles. (15th December 1997) 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) ↗
56. Anechoic chambers. Shield attenuation measurement Part 1, (15th January 1997) 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) ↗
57. Application guide for calculation of short-circuit currents in low-voltage radial systems. (15th April 1993) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (38 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
58. Artificial climbing structures. Protection points, stability requirements and test methods. (15th May 1999) 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. Assessment of power density of human exposure to radio frequency fields from wireless devices in close proximity to the head and body (frequency range of 6 GHz to 300 GHz). Computational procedure Part 2, (21st June 2022) 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) ↗
60. Assessment of power density of human exposure to radio frequency fields from wireless devices in close proximity to the head and body (frequency range of 6 GHz to 300 GHz). Computational procedure Part 2, (23rd May 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (82 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗