Hocks Hearing Healthcare Products
Hocks Hearing Healthcare Products
3930 S Kelly Avenue
Portland, OR 97239
United States
ph: 503-274-9482
fax: 503-222-3539
alt: 800-654-6257
customer
Custom Noise Braker Test Data
Custom Noise Braker hearing protection has been tested by Michael & Associates in accordance with The American National Standards Institute (ANSI), and CE tested by Sport Critt Loisirs.
Our proprietary Hocks Noise Filter® is used in other products, and while attenuation data should be similar, the test data on this site is for Hocks Noise Braker® units only.
Please contact the individual provider for testing results. The process by which your hearing protection was manufactured will vary based on a variety of factors, and the test results may vary.
Custom Hocks Noise Braker®
The following testing was performed in accordance with The American National Standards Institute (ANSI). A copy of the full report is available upon request. All numbers, unless otherwise noted are in decibels (dB).
| Frequency in Hertz | 125 | 250 | 500 | 1000 | 2000 | 3150 | 4000 | 6300 | 8000 |
Mean Attenuation | 9.7 | 13.1 | 22.9 | 30.0 | 34.4 | 43.4 | 41.1 | 32.8 | 32.7 |
Standard Deviation | 1.8 | 1.7 | 2.7 | 2.1 | 1.8 | 2.1 | 2.4 | 3.1 | 2.5 |
Assumed protection | 7.9 | 11.4 | 20.2 | 27.9 | 32.6 | 41.3 | 38.7 | 29.7 | 30.2 |
NRR 19
__________
The following 
test was performed according to the European Union type inspection; compliant with Directive 89/686/EEC.
Frequency in Hertz | 63 | 125 | 250 | 500 | 1000 | 2000 | 4000 | 8000 |
Mean Attenuation | 24.4 | 25.8 | 24.6 | 27.1 | 25.2 | 33.7 | 36.7 | 38.4 |
Standard Deviation | 5.0 | 4.0 | 4.1 | 4.7 | 4.5 | 3.7 | 4.4 | 5.1 |
Assumed Protection | 19.3 | 21.8 | 20.5 | 22.4 | 20.7 | 30.0 | 32.3 | 33.3 |
| Minimum Requirement | 0 | 5 | 8 | 10 | 12 | 12 | 12 | 12 |
Average High Frequency Attenuation | 28.2 |
Average Medium Frequency Attenuation | 22.7 |
Average Low Frequency Attenuation | 21.8 |
| SNR | 26.7 |
Hocks Hearing Healthcare Products
3930 S Kelly Avenue
Portland, OR 97239
United States
ph: 503-274-9482
fax: 503-222-3539
alt: 800-654-6257
customer