1. BS ISO 21501-4 AMD1. Determination of particle size distribution. Single particle light interaction methods. Part 4. Light scattering airborne particle counter for clean spaces (16th March 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (15 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Laser and laser-related equipment. Test methods for laser beam parameters. Beam width, divergence angle and beam. (15th November 2000) 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) ↗
3. Determination of particle size distribution. Single particle light interaction methods. Light scattering liquid-borne particle counter Part 2, (27th November 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (30 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
4. Determination of particle size distribution. Single particle light interaction methods. Light extinction liquid-borne particle counter Part 3, (4th December 2019) 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) ↗
5. BS EN ISO 11146-1. Lasers and laser-related equipment. Test methods for laser beam widths, divergence angles and beam propagation ratios. Part 1. Stigmatic and simple astigmatic beams (5th May 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (25 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
6. Lasers and laser-related equipment. Test methods for laser beam widths, divergence angles and beam propagation ratios. Stigmatic and simple astigmatic beams Part 1, (21st July 2021) 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) ↗
7. Tracked Changes. Lasers and laser-related equipment. Test methods for laser beam widths, divergence angles and beam propagation ratios. Stigmatic and simple astigmatic beams Part 1, (21st October 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (62 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
8. Determination of particle size distribution. Single particle light interaction methods. Light scattering airborne particle counter for clean spaces Part 4, (13th February 2023) 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) ↗