May 2007
News Release

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Larson Davis Products Address New ANSI Standards for Construction and Demolition Worker Hearing Loss Prevention

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May 3, 2007, Depew, NY, USA – Two classes of instruments from the Larson Davis division of PCB Piezotronics, Inc. (PCB®) can be used to effectively measure noise exposure levels, as recommended in the new American National Standards Institute (ANSI) Standard A10.46-2007, “Hearing Loss Prevention in Construction and Demolition Workers”, protecting tradesmen, laborers, supervisors and others engaged in these two extremely noisy types of work. The standard provides a comprehensive means for determining risk of hearing loss from overexposure to noise on the worksite, and ways to effectively limit the exposure.

All Larson Davis Spark® series of personal Noise Dosimeters and the SoundTrack LxT® Sound Level Meter offer automatic calculation of Noise Dose and Time-Weighted Average noise levels, as well as maximum and peak exposure levels, which are required to address this standard. The low-cost Spark® series offers an additional advantage of being able to use an optional fixed microphone, for easy conversion from personal dosimetry to area or task-based measurement techniques.

ANSI has also issued another standard to helps protect workers in construction trades, ANSI S2.70-2006, “Guide for the Measurement and Evaluation of Human to Vibration Transmitted to the Hand”, intended to help prevent injuries from powered hand tools commonly used in the construction and demolition industry. To help address this standard, Larson Davis offers the HVM100 Human Vibration Meter, designed to measure hand-arm and whole body vibration. Much like Spark® Dosimeters and the SoundTrack LxT®, HVM100 can download data results to a PC using the simple but powerful Blaze® software for Noise and Vibration Exposure analysis and reporting.

For more detailed specifications, or additional information on these products, please visit


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