1. Acoustics. Standard reference zero for the calibration of pure tone air conduction audiometers. (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) ↗
2. Acoustics. Reference zero for the calibration of audiometric equipment. Specification for a standard reference zero using an artificial ear complying with BS 4669 Part 6, (29th February 1988) 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) ↗
3. Standard reference zero for the calibration of pure tone air conduction audiometers. Specification for a standard reference zero at frequencies intermediate between those given in Parts 5 and 6 of BS 2497 Part 7, (29th February 1988) 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) ↗
4. Standard reference zero for the calibration of pure tone air conduction audiometers. Specification for a standard reference zero using an acoustic coupler complying with BS 4668 Part 5, (29th February 1988) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (8 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
5. Geometrical product specifications (GPS). Geometrical tolerancing. Positional tolerancing. (15th May 1999) 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) ↗
6. BS EN ISO 389-3 AMD1. Acoustics. Reference zero for the calibration of audiometric equipment. Part 3. Reference equivalent threshold vibratory force levels for pure tones and bone vibrators (17th February 2020) 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) ↗
7. Tracked Changes. Geometrical product specifications (GPS). Geometrical tolerancing. Pattern and combined geometrical specification. (29th January 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (117 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
8. Tracked Changes. Standard representation of geographic point location by coordinates. (23rd January 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (122 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
9. Specification for interconnections in analogue data transmission systems in aircraft. (31st December 1963) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (18 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
10. Engineering drawing practice. Recommendations for geometrical tolerancing Part 3, (31st August 1990) 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) ↗