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(3) Examine cartridges and ensure that they are the correct type for the <br /> intended use, that the expiration date has not passed, and that they have <br /> not been opened or used previously <br /> (4) Check face shields for cracks or fogginess <br /> B Loosen all harness strap adjustments <br /> C Place chin in chin cup and draw back evenly on strap adjustments - the two <br /> bottom straps first, then the two top straps, and the center top strap last <br /> D Check that the respirator is centered evenly on the face and that the straps are <br /> not uncomfortably tight <br /> E Check for leaks or proper facial seals <br /> (1) To conduct a negative-pressure test, close the inlet part with the palm of <br /> the hand so it does not pass air, and gently inhale for about 10 seconds <br /> Any inward rush of air indicates a poor fit Note that a leaking faceplece <br /> may be drawn tightly to the face to form a good seal, giving a false <br /> indication of adequate fit <br /> I <br /> (2) To conduct a positive-pressure test, gently exhale while covering the <br /> exhalation valve to ensure that a positive pressure can be built up <br /> Failure to build a positive pressure indicates a poor fit <br /> 7 Put on the rest of the gear in the following order <br /> A Raise hood <br /> B Hardhat <br /> C Surgical gloves <br /> D Outer gloves <br /> E Connect gloves and suit with tape <br /> 8 Select a buddy to act as a safety backup <br /> 9 Check your buddy's equipment and have your buddy check yours for rips, tears or <br /> malfunctions Pay special attention to respirators, making sure that seals are good and <br /> that cartridges are securely in place <br /> Avalon Environmental Consultants 9627-001-2 <br /> VW Kashmar Singh )oes Truck Stop <br /> October 20, 1998 Lathrop, California <br />