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Noise Test Report: Handheld Pneumatic Rotary Drill.

Authors
Stein-RR; Aljoe-WW
Source
MISSING :11 pages
Link
NIOSHTIC No.
10007234
Abstract
Using an automated drill test fixture, the U.S. Bureau of Mines measured the sound power levels produced by a small, pneumatic, rotary roof drill. A series of tests were conducted to determine (1) the relative effectiveness of several drill muffling schemes and (2) the relationship between drill sound power and pneumatic power supplied to the drill. The influence of rotation rate (i.e., airflow) and feed thrust on the penetration rate of the drill was also noted.
Publication Date
19890101
Document Type
IH; Report of Investigations;
Fiscal Year
1989
NTIS Accession No.
NTIS Price
Identifying No.
RI 9269
NIOSH Division
PRC;
Source Name
MISSING
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