21. Methods for determination of particle size distribution. Guide to powder sampling Part 1, (31st October 1986) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (34 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
22. Methods for sampling chemical products. Introduction and general principles Part 1, (30th July 1976) 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) ↗
23. Methods of test for coffee and coffee products. Green coffee: determination of proportion of insect-damaged beans Part 8, (30th April 1986) 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) ↗
24. Nanotechnologies. Carbon nanotube suspensions. Specification of characteristics and measurement methods. (17th March 2020) 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) ↗
25. Nanotechnologies. Characterization of carbon nanotube samples using thermogravimetric analysis. (9th April 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (34 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
26. Optics and optical instruments. Preparation of drawings for optical elements and systems. Material imperfections. Inhomogeneity and striae Part 4, (15th November 1997) 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) ↗
27. Optics and photonics. Optical materials and components. Test method for homogeneity of optical glasses by laser interferometry. (23rd December 2022) 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) ↗
28. Photovoltaic (PV) modules. Salt mist corrosion testing. (12th August 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) ↗
29. Precast concrete products. Test method for glass-fibre reinforced cement. Measuring the fibre content in fresh GRC, 'Wash out test' Part 2, (15th May 1998) 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) ↗
30. Radiological protection. X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy. Dosimetry for radiation protection over the energy ranges from 8 keV to 1, 3 MeV and 4 MeV to 9 MeV Part 2, (22nd August 2019) 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) ↗