Radosz J and Pleban D. Ultrasonic noise measurements in the work environment. The Journal of the Acoustical Society of America 144, 2532 (2018). https://doi.org/10.1121/1.5063812. |
Health and Safety Executive (HSE). Damage to human hearing by airborne sound of very high frequency or ultrasonic frequency. Institute of Sound and Vibration Research University of Southampton Highfield Southampton SO17 1BJ United Kingdom, 2001. ISBN 0 7176 2019 0. |
Damongeot A, Andrè G. Noise from Ultrasonic Welding Machines: Risks and Prevention. Applied Acoustics 25 (1988) 49-66.DOI:10.1016/0003-682X(88)90112-0. |
Acton W I. Exposure to industrial ultrasound: hazards, appraisal and Control, J. Soc. Occup. Med. (1983) 33, 107-113.DOI:10.1093/occmed/33.3.107. |
Kozłowski E, Młyński R. Measurement of Earmuffs Attenuation at High Audible Frequencies, Archives of Acoustics Vol. 42, No. 2, pp. 249–254 (2017). DOI: 10.1515/aoa-2017-0027. |
Crabtree RB, Behar A. Measurement of hearing protector insertion loss at ultrasonic frequencies. Applied Acoustics 59 (2000) 287–299.DOI: 10.1016/S0003-682X(99)00003-1. |
Lawton B W. Damage to human hearing by airborne sound of very high frequency or ultrasonic frequency, HSE Crown copyright 2001, ISBN 0 7176 2019 0. |
Berger E H. Protection for Infrasonic and Ultrasonic Noise Exposure. E•A•RLog® Aearo Company. Copyright 1996. First printing 1984. |
Radosz, Jan. Methodlolgy issues of ultrasonic noise exposure assessment Noise Control Engineering Journal 60(6): 645-65 November 2012 |