MIL-STD-912, MILITARY STANDARD: PHYSICAL EAR NOISE ATTENUATION TESTING (11 DEC 1990) [NO S/S DOCUMENT]

MIL-STD-912, MILITARY STANDARD: PHYSICAL EAR NOISE ATTENUATION TESTING (11 DEC 1990) [NO S/S DOCUMENT]., This standard establishes the methodology and instrumentation requirements for quality assurance testing (QAT) for noise attenuation characteristics of hearing protective devices.