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12 <br /> <br />e. The RIC/UAC shall have a check valve to prevent the loss of air when the high- <br />pressure air source has been disconnected. <br /> <br />J. Cylinder: <br />a. The cylinder threads shall be straight with an O-ring or quad-ring gasket type seal. <br />b. The cylinder valve shall be a “fail open” type, constructed of forged aluminum and <br />designed such that no stem packing or packing gland nuts are required. <br />c. It shall contain an upper and lower seat such that the pressure will seal the stem on <br />the upperseat, thus preventing leakage past the stem. <br />d. No adjustment shall be necessary during the life of the valve. <br />e. If the SCBA is equipped with a CGA cylinder connection, the cylinder valve outlet <br />shall be a modification of the Compressed Gas Association (CGA) standard <br />threaded connection number 347 for 5500 systems. <br />f. Each cylinder valve shall consist of the following: 1) a hand activated valve <br />mechanism with a spring-loaded, positive action, ratchet type safety lock and lock- <br />out release for selecting “lock open service” or “non-lock open service”; 2) an <br />upstream connected frangible disc safety relief device; 3) a dual reading pressure <br />gauge indicating cylinder pressure at all times; 4) an elastomeric bumper; 5) an <br />angled outlet. <br />g. Each cylinder and valve assembly shall be equipped with a hanger bracket for <br />positive locking attachment of the assembly to the backframe. <br />h. The SCBA shall maintain all NIOSH and NFPA standards. <br />i. The cylinder shall be manufactured in accordance with DOT specifications and meet <br />the Transport Canada requirements with working pressures of 5500 psig. <br />j. The cylinder shall be lightweight, composite type cylinder consisting of an aluminum <br />alloy inner shell, with a total overwrap of carbon fiber, fiberglass and an epoxy resin <br />(see “k” below for more information). <br />k. The RCFD logo will be placed beneath the finished cylinder coating. <br />l. The cylinder shall be available in a 30-minute, 45-minute, 60-minute or 75 minute <br />duration based on the NIOSH breathing rate of 40 liters per minute (lpm). <br /> <br />K. Warranty: <br />a. The unit shall be covered by a warranty providing protection against defects in <br />materials or workmanship. <br />b. This warranty shall be for a period of 10 years on the SCBA, except for the pressure <br />reducer, which shall be covered for 15 years. <br />c. Electronic components shall be warranted for five years. <br /> <br />L. Emergency Breathing Support System “Buddy Breathing”: <br />a. The Optional Dual Emergency Breathing Support System (EBSS) shall be approved <br />to NIOSH 42CFR, Part 84 and NFPA 1981, 2013 Edition. <br />b. The Dual EBSS shall have one of each of the following requirements; (1) a manifold <br />with one each of a female socket and male plug, both of which have check valves, <br />(2) 40” minimum low- pressure hose, (3) a pouch for storing the hose, and (4) a dust <br />cap for the female socket and male plug. <br />c. The Dual EBSS system shall be capable of allowing for six feet of hose between like <br />systems. <br />d. The manifold shall be made of aluminum and be anodized black. <br />e. The f emale socket and male plug shall have spacing, no less than 15° off-center. <br />f. The female socket shall have a double action to disengage, noted as a “push-in/pull- <br />back”. <br />g. The female socket shall have an internal check valve. <br />6.1.D. - Page 14