1. BS EN 61094-2 AMD1 Ed.2.0. Electroacoustics. Measurement microphones. Part 2. Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique (6th November 2020) 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) ↗
2. Electroacoustics. Measurement microphones. Methods for determining the free-field sensitivity of working standard microphones by comparison Part 8, (31st May 2013) 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) ↗
3. Electroacoustics. Measurement microphones. Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique Part 2, (3rd August 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) ↗
4. Protective clothing for fire-fighters. Test methods and requirements for reflective clothing for specialized fire-fighting. (15th February 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) ↗
5. Specification for measurement microphones. Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique Part 2, (15th April 1994) 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) ↗