51. Acoustics. Test methods for the qualification of the acoustic environment. Qualification of free-field environments Part 1, (26th October 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (32 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
52. Acoustics. Tractors and machinery for agriculture and forestry. Measurement of noise at the operator's position. Survey method. (15th December 1996) 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) ↗
53. Airborne noise emitted by woodworking machine tools. Operating conditions for woodworking machines. (15th August 1995) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (124 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
54. Audiometers. Equipment for speech audiometry Part 2, (15th September 1997) 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) ↗
55. BS EN 12184. Electrically powered wheelchairs, scooters and their chargers. Requirements and test methods. (15th September 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (67 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
56. BS EN 13477-2. Non-destructive testing. Acoustic emission testing. Equipment characterisation. Part 2. Verification of operating characteristics (12th September 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (71 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
57. BS EN 1501-4. Refuse collection vehicles. General requirements and safety requirements. Part 4. Noise test code for refuse collection vehicles (11th April 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (21 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
58. BS EN 1793-6 AMD1. Road traffic noise reducing devices. Test method for determining the acoustic performance. Part 6. Intrinsic characteristics. In situ values of airborne sound insulation under direct sound field conditions (8th October 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (9 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
59. BS EN 1793-6. Road traffic noise reducing devices. Test method for determining the acoustic performance. Part 6. Intrinsic characteristics. In situ values of airborne sound insulation under direct sound field conditions (24th August 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (63 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
60. BS EN 352-6 AMD1. Hearing protectors. Safety requirements. Part 6. Earmuffs with safety-related audio input (25th November 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (6 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗