Guidelines for the Safe Use of Ultrasound:
Part II - Industrial & Commercial Applications - Safety Code 24

1991
ISBN: 0-660-13741-0
Cat. No.: H46-2/90-158E

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Table of Contents

• Forward
• 1. Introduction
• 2. Health Effects of Industrial and Commercial Ultrasound
  • 2.1 Contact Exposures
  • 2.2 Airborne Ultrasound
    • 2.2.1 Heating and Cavitation
    • 2.2.2 Auditory Effects - Hearing and Physiological
    • 2.2.3 "Subjective" Effects
• 3. Human Exposure to Airborne Ultrasound
• 4. Guidelines for Safe Use
  • 4.1 Contact Ultrasound
  • 4.2 Airborne Ultrasound
    • 4.2.1 Human Exposure Limits
    • 4.2.2 Protective Measures for Airborne Ultrasound Exposure
• Appendix 1 - Airborne Ultrasound Measurement
• Appendix 2 - Glossary
• References

List of Figures

• Figure 1 Summary of In Vivo Mammalian Biological Effects Data for Ultrasound in the Low MHz Frequency Range
• Figure 2 Physiological Effects of Airborne Ultrasound
• Figure 3 Ultrasound Radiation Warning Sign

List of Tables

• Table 1 Industrial Applications of High Power Ultrasound
• Table 2 Selected SPLs in dB at the Operator's Position in 1/3 Octave Bands from Industrial Ultrasonic Sources
• Table 3 Exposure SPLs in dB for Various Commercial Devices
• Table 4 Examples of Occupational Exposure SPL Limits (in dB)
• Table 5 Canadian Exposure Guidelines for Airborne Ultrasound