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m. The shoulder harness shall be designed with ergonomic body contoured "S" comfort style shoulder pads to maintain its shape and latitude when worn, providing comfort and freedom of movement. The shoulder pads shall be at least 2.5 inches wide and the waist belt padding shall be at least 3.5 inches wide for optimal support. The total length of the waist pad area shall be at least 30 inches. Shoulder and waist belt harnessing shall be independently adjustable. n. Shoulder and waist adjustment friction buckles shall be of stainless steel with a curve inward toward the wearer to eliminate any potential for snagging. o. Adjusting straps of both shoulder and waist shall have a stiffened, 3-4 inches long end grips. p. Each shoulder and waist harness padding shall be easily detached by a quick release button from the back plate for cleaning and disinfection without the use of tools. q. The waist belt shall utilize a metal seat belt style buckle. The waist belt shall allow a quick and easy adjustment (twin pull forward) of the waist belt, even when seated in an apparatus jump seat. r. A locking mechanism shall be used to secure the cylinder strap in place to ensure simple and secure operation. s. The cylinder strap shall accommodate all types and sizes of cylinders without the use of tools. t. The cylinder strap shall be easy to detach from the backplate without the use of tools for cleaning and disinfection. u. The pneumatic system shall be easy to detach from the backplate and harness. v. Hoses shall be routed under the back plate to eliminate snag potential. w: Hoses going over the shoulder shall be covered by a protective hose sleeve. 6. Cylinder and Valve Assembly a. Cylinders shall be available in the following configurations: 30, 45 or 60 minute 4500 psi Carbon Fiber cylinder. b. The volume of the 30-minute cylinder shall be approximately 45 cubic feet when filled to 4500 psig pressure and shall conform to DOT exemption numbers. c. The volume of the 45-minute cylinder shall be approximately 66 cubic feet when filled to 4500 psig pressure and shall conform to DOT exemption numbers. d. The volume of the 60-minute cylinder shall be approximately 87 cubic feet when filled to 4500 psig pressure and shall conform to DOT exemption numbers. e. The Cylinder valve shall contain a closing valve, which incorporates a pressure gauge to indicate the cylinder pressure at all times. f. The Cylinder shall be either anall-aluminum, fully wrapped or a hoped wrapped design. Wrapped cylinders shall be constructed of a deep drawn, seamless aluminum liner wound with carbon filaments impregnated with epoxy resin. g. The cylinders shall have reflective markings for ease of visibility. h. The cylinders shall be imprinted with the Livermore-Pleasanton Custom Logo. i. The cylinder valve shall be fitted with a luminous boldface dial-type gauge with protective guards. j. The Cylinder valve shall conform to the Compressed Gas Association (CGA) standard for threaded connection number 347.