1. BS EN ISO 7029 AMD 1. Acoustics. Statistical distribution of hearing thresholds related to age and gender. (15th January 2017) 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) ↗
2. Specification for threshold of hearing by air conduction as a function of age and sex for otologically normal persons. (29th February 1988) 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) ↗