||Environmental Acoustics Committee Seeks Feedback From Users of
ASTM E 1265
Standard Test Method for Measuring Insertion Loss of Pneumatic
ASTM Committee E33 on Environmental Acoustics asks users of ASTM E 1265, Standard Test Method for Measuring Insertion Loss of Pneumatic
Exhaust Silencers, to contact Howard Kingsbury to discuss the
prospect of dropping the standard from ASTM publication. If users
find the document valuable, the committee welcomes their cooperation
in a review of the standard, says Kingsbury, chairman of Subcommittee
E33.08 on Mechanical and Electrical System Noise which developed
the test method in 1990.
Last reviewed in 1995, E 1265 covers the laboratory measurement
of the acoustical and mechanical performance of pneumatic exhaust
silencers designed for quieting compressed gas (usually air) exhausts
from orifices connected to pipe sizes up to 3/4 in. nominal pipe
size (20 mm. nominal dimension). This test method is not applicable
for exhausts performing useful work, such as part-conveying, ejection,
or cleaning. It evaluates acoustical performance using A-weighted
sound level measurements.
Direct comments to Howard Kingsbury, State College, Pa. (phone: 814/238-9688). Committee E33 meets
Oct. 14-15 in Norfolk, Va. For meeting or membership details,
contact Steve Mawn, manager, ASTM Technical Committee Operations (phone: 610/832-9726).
Copyright 2002, ASTM