The NIOSH User Notice Concerning Loss of Start-Up Oxygen in CSE SR-100 Self-Contained Self-Rescuers is being issued to inform users of the CSE SR-100 SCSR phase-out plan in mining and non-mining applications.
This action follows the April 16, 2012 publication of the NIOSH Technical Report,Loss of Start-Up Oxygen in CSE SR-100 Self-Contained Self-Rescuers [DHHS (NIOSH) Publication No. 2012–139]. Continued use as a respirator in non-mining applications is contingent upon phase-out of the CSE SR-100s, and replacement of these respirators by a different NIOSH-approved respirator as described in OSHA ALERT OA-3541. Continued use of these devices in underground mines is contingent upon implementation of the phase-out schedule for the devices described in MSHA Program Information Bulletin (PIB) No. 12-09.
