1. Method of measurement of noise inside motor vehicles. (31st December 1981) 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) ↗
2. Method of measurement of transformer and reactor sound levels. (30th November 1981) 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) ↗
3. Sound power levels of noise sources. Engineering methods for determination of sound power levels for sources in free-field conditions over a reflecting plane Part 4, (30th November 1981) 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. Sound power levels of noise sources. Guide for the use of basic standards and for the preparation of noise test codes Part 0, (30th January 1981) 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) ↗
5. Sound power levels of noise sources. Survey method for determination of sound power levels of noise sources Part 6, (31st July 1981) 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) ↗