COMPLIANCE INFO_2012 - 2014 - Laserfiche WebLink

Home Browse Search

7.6.2.7. Monitor the tank, excavation area and point where vapors are being exhausted to ensure that potentially flammable vapors are not in the path of an ignition source. 7.6.2.8. Before and during tank entry, test the tank atmosphere. Refer to Section 7.8, "Before Tank Entry." WARN I MG Do not reenter a vapor-free tank(for example, after break periods and lunch, the next day, or after the venturi has been shut off, etc.) without retesting the atmosphere in the tank. Flammable vapors can regenerate very rapidly. Failure to follow this warning could result in death or serious injury. 7.7. Emergency-Rescue Equipment Set Up Before Tank Entry 7.7.1. General 7.7.1.1. Inspect all parts of the retrieval system (harness, tripod, retrieval line, winch system) to make sure they are functioning properly. Note: The tripod must be designed specifically for rescues and permit-required confined space situations and have a workload rating capable of lifting all authorized entrants. The tripod must have an integral winch system. 7.7.1.2. Place the tripod directly over the access opening (manway). 7.7.1.3. If the tripod cannot be set up properly due to tank or ground configuration, a trained and properly equipped rescue service may be used to supply emergency rescue. Contact the plant manager for further information if this is the case. 7.7.2. Authorized tank entrant(s) 7.7.2.1. Put on a full-body safety harness and attach one end of the retrieval line to the "D- ring" on the back of the safety harness. Attach the other end of the line to the tripod. Once inside the tank, you must be tethered to the tripod at all times if you are the only authorized tank entrant. If there is more than one authorized tank entrant, all authorized tank entrants must wear a full-body harness equipped with a retrieval line, which is attached to either a tripod or a fixed point outside the permit-required confined space so that rescue can begin as soon as the rescuer (attendant) becomes aware that rescue is necessary. Never attach the free end of the retrieval line to a vehicle. Note: In some cases, wearing a retrieval line may be an impractical method for rescue due to tank obstructions or internal tank configuration. If this is the case, an alternative means of tank rescue must be determined by the site supervisor. One option would be to contract with a trained and properly equipped rescue service. If this becomes necessary, contact the plant manager for further information. i I 24