ANSI S12WG33
Working Group on Revision of ANSI S5.1-1971 Test Code for the Measurement of Sound from Pneumatic Equipment
Chair: ASA Standards
Scope: Develop standards on the measurement of all types of pneumatic equipment such as air tools, hoists, rock drills, paving breakers, etc.
FTP LINK
Committee members may access the password protected part of the site here.