Impulse Assessment of the 3M (trademark) PELTOR (trademark) ComTac (trademark) 5 Hearing Defender Headset
Abstract
The impulse peak insertion loss (IPIL) is the standard measure of attenuation provided by hearing protection devices (HPDs) in response to an impulsive noise. This technical memorandum describes the IPIL testing conducted on the 3M PELTOR ComTac V Hearing Defender Headset in two test modes: passive (i.e., turned OFF) and active (i.e., turned on and set to MAX). Testing was done in accordance with the ANSI standard S12.42-2010. A total of five samples were fitted to an acoustic test fixture two times each for a total of 10 trials per test level in both the passive and active test modes. All samples were tested at the nominal levels of 160 and 170 decibel peak (dBP, re: 20 Pa). The results revealed mean IPIL values within 1.0 dB of each other for the passive and active test modes at both 160 and 170 dBP. Greater mean IPIL values were measured for the 170 dBP test condition compared to 160 dBP for both the passive and active test modes. These results suggest that the ComTac V will adequately protect impulses below 167.5 dBP in the passive mode and below 168.5 dBP in the active mode.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 2021
- Accession Number
- AD1153832
Entities
People
- Alexa H. Kolias
- Derek W. Schwaller
- Jeremy S. Federman
- Natalie Silvia
- Stephanie J. Karch
Organizations
- Naval Submarine Medical Research Laboratory