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PARAIDISO CONSTRUCTION CO. <br /> GENERAL & PETROLEUM CONTRACTORS <br /> UN <br /> C � <br /> LICENSE NO. 159820 <br /> ® ® P.O. BOX 6397 <br /> 9220 "G" STREET OAKLAND, CA 946034603 <br /> (415) 562.5511 <br /> CONFINED SPACES <br /> Before employees are allowed to enter confined spaces : <br /> 1 . Lines containing hazardous substances must be disconnected , <br /> blinded , or blocked . <br /> 2 . The space must be emptied , flushed or purged . <br /> 3 . The air must be tested for dangerous contamination or oxygen <br /> deficiency . Ventilation is required if testing reveals any <br /> hazard . <br /> Working in a confined space where dangerous air contamination exists <br /> requires::. <br /> F 1 . Appropriate -respiratory protection . <br /> 2. Sa£ety belt ,(or harness,) protection'.- <br /> 3. One standby employee (with respirator) . <br /> C. <br />