OSHA Appendix D
OSHA 29 CFR 1910.95 Appendix D sets maximum permissible ambient sound pressure
levels for audiometric test rooms used in occupational hearing conservation.
ANSI S3.1
ANSI S3.1 ambient noise criteria are commonly referenced when evaluating whether
a test environment is quiet enough for valid audiometric screening.
ACS room checks
AUSSCO's ACS system can measure sound room ambient noise levels, including
one-third octave band analysis referenced in AUSSCO archive material.
Audiometer calibration
A sound room installation can be coordinated with audiometer calibration so the
instrument and the test environment are reviewed together.
Program records
OSHA audiometric records include background sound pressure measurements for
audiometric test rooms, making room documentation useful for audits.
Practical fit
Room selection should consider workflow, accessibility, space constraints, HVAC,
cabling, employee throughput, and long-term service access.