| # | Letters of Interpretation |
|---|---|
| 1 | - 1910.95 App C - Use of the "hold" switch on audiometers when background noise levels exceed the criteria in Table D-1. |
| # | Letters of Interpretation |
|---|---|
| 1 | - 1910.95 App C - Use of the "hold" switch on audiometers when background noise levels exceed the criteria in Table D-1. |