Code of Federal Regulations > Title 40 > Chapter I > Part 211 > Appendix Appendix A - Appendix A to Part 211

Regulations last checked for updates: May 07, 2024

Title 40 - Protection of Environment last revised: Apr 07, 2030

Appendix Appendix A - Appendix A to Part 211—Compliance Audit Testing Report

Data Sheet

Company name:

Address:

Test laboratory:

Address:

Model number of hearing protector:

Category designation:

Production date:

Test Results—Frequency, Mean Attenuation, and Standard Deviation

125

250

500

1000

2000

3150

4000

6300

8000

Noise Reduction Rating:

source: 44 FR 56127, Sept. 28, 1979, unless otherwise noted.