Self Contained Self Rescuers

MSHA personnel must depend on the Self Contained Self-Rescuers for a breathable mixture of air that will permit them adequate time to safely exit the mine. Approved SCSRs are designed to provide oxygenin sufficient quantities to provide a breathable atmosphere for at least one hour. Providing this capability to MSHA personnel enhances their ability to survive an emergency situations whileperforming their inspection duties at underground coal mines.MSHA has a need to procure SCSRs for various District Offices that require the following Product Specifications listed below. Must be belt wearable; 2. Must have NIOSH and MSHA approvals; 3. Must have a rated duration of 60 minutes or greater; 4. Must have a 5-year carried service life; 5. Must have a 10-year permanent storage service life; 6. Must have the following operating performance specifications: a. Usage period of VE volume 10 liters/min of 3.5 hours; b. Usage period of VE volume 30 liters/min of 75 minutes; and c. Usage period of VO2 1.35 liter O2/min of 60 minutes; 7. Must be able to withstand: a. A storage temperature range of -20 F to 150 F; b. An operating temperature range of 32 F to 150 F; c. A relative humidity level of up to 100%; and d. A barometric pressure of 700 to 1,300 hPa; 8. Must have a breathing bag volume of >3 liters; 9. Must have breathing resistance of: a. Inhalation plus exhalation @ 30 L/min at deployment of 70 mm H20; and b. Inhalation plus exhalation @ 30 L/min at 60 minutes of 150 mm H20; 10. Must have physical dimensions of 8.5 x 6 x 4.25 inches or smaller; 11. Must have a carried weight of 5lb 14oz or lighter; and 12. Must have a deployed weight of 5lb 1oz or lighter.