241. Sound power levels of noise sources. Engineering methods for determination of sound power levels for sources in special reverberation test rooms Part 3, (29th March 1991) 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) ↗
242. 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) ↗
243. Sound power levels of noise sources. Precision methods for determination of sound power levels for discrete-frequency and narrow-band sources in reverberation rooms Part 2, (29th March 1991) 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) ↗
244. Sound power levels of noise sources. Specification for the performance and calibration of reference sound sources Part 8, (28th February 1991) 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) ↗
245. 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) ↗
246. Sound power levels of noise sources. Survey method for determination of sound power levels of noise sources using a reference sound source Part 7, (30th December 1988) 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) ↗
247. Sound system equipment. Headphones and earphones associated with portable audio equipment. Maximum sound pressure level measurement methodology and limit considerations. General method for "one package equipment" Part 1, (15th November 2000) 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) ↗
248. Specification for conference systems: electrical and audio requirements. (29th September 1989) 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) ↗
249. Specification for electrical apparatus for the detection of combustible gases in domestic premises. (31st August 1990) 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) ↗
250. Specification for electroacoustics. Instruments for the measurement of sound intensity. Measurement with pairs of pressure sensing microphones. (15th April 1994) 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) ↗