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BS EN , IEC – Integrating-averaging sound level meters
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Message to your colleague. Describes instruments for the measurement of frequency weighted and time averaged sound-pressure levels.
Ensures specified accuracy and stability of an integrating sound level meter and reduces to the practical minimum any differences in equivalent measur. English French Written by: Integrating-averaging sound level meters Article no: Particular requirements for the basic safety and essential performance of hearing instruments and hearing instrument systems.
SS-EN Requirements for the declaration of the acoustic output of medical diagnostic ultrasonic equipment. Report error on page.