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un Site Safety PIan March 23, 1990 ARCO Station 548, Stockton, California AGS 30004-1S 2. Examine face piece plastic center shell for cracks, missing components, or damaged threads. 3. Examine harness for breaks, cuts, frays, tears, and missing or damaged hardware. 4. Examine inhalation and exhalation valves and valve seats for cuts,cracks, or foreign matter which may not allow the valve to close completely. Check that valves are properly installed and are not distorted. S. Examine cartridges for signs of abuse or damage. Discard damaged items. 6. Any respirator malfunction or deficiencies noted must be reported to the Health and Safety Coordinator or Branch Safety Officer who will issue a new respirator or correct the deficiencies using only approved spare parts from the manufacturer of the specific model in need of repair. Spare parts from any other manufacturer may not be used under any conditions. Instructions in the manual provided by the manufacturer should be followed when the respirator needs repairing or replacing. B. Cleaning 1. Unthread cartridges or filters. 2. Wash the face piece after use, with warm water and a mild detergent. 3. Disinfect the fare piece if it was used by another person. The mask should routinely(once per month) be disinfected even if respirator is used solely by one individual. A hypochlorite solution may be used (i.e., 2 tablespoons chlorine bleach per gallon of water for an acceptable solution). 4. After cleaning and air-drying, check that the face piece is not damaged and that components removed prior to cleaning have been installed properly. C. Storage 1 Place the respirator in its storage box in a heat-sealed or resealable plastic bag: Store flat, with the face piece and exhalation valve in an approximately normal position, to prevent the face seal from taking a permanent "set." 2. Replacement components should be stored in sealed packages in a-cool, clean, low-humidity location until ready for use. 11