MIL MIL-STD-1474E

This standard establishes acoustic noise limits and prescribes testing requirements and measurement procedures for determining conformance to the noise limits stated herein. The standard specifies sound pressure level limits and measurement procedures to promote personnel safety, speech intelligibility, and security from acoustic detection and recognition. Acoustical noise limits for determining conformance to community annoyance requirements are beyond the scope of this standard. Noise limits for community annoyance are covered by local laws and statutes. DoD materiel (motor vehicles, construction and material handling equipment, mobile generator sets, and portable air compressors)may have to comply with these local laws and statutes anywhere in the world they operate. See more