TY - GEN AU - Robert N Hosier C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1979-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.79-1718 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1979 TI - A measurement of sound levels associated with the operation of a portable pneumatic pavement breaker equipped with a mufflercase enclosure and dampened moils: ER -