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v4A,t&) --)� �D DYr�o-hcNl <br /> Hazardous Waste Management Standard Operating Procedure <br /> AEROSOL CANS <br /> 1) Empty each can through `normal use'. When the contents are <br /> considered hazardous or dangerous they must only be used as intended <br /> and not wasted or sprayed out just to get rid of them. Doing so is <br /> considered treatment in order to avoid proper disposal and is illegal. If <br /> it cannot be emptied through normal use, perhaps because of a broken <br /> nozzle, then the entire can must be collected as dangerous waste and it <br /> must NOT be punctured. <br /> 2) Puncture each can with a properly functioning puncture station. <br /> Aerosol cans are only considered completely `empty' once the pressure <br /> inside is equal to atmospheric pressure. This is achieved by puncturing <br /> the container. Puncturing the can allows the release of both liquid <br /> residue (which Department of Ecology considers to still meet the <br /> definition of dangerous waste and thus it must be collected and handled <br /> accordingly) and vapor (which must not be released into the <br /> environment— hence the need to properly maintain the filters on the <br /> puncture station). <br /> 3) Record each puncture station use on the log. It is important to record <br /> the number of cans that are processed through the puncture station so <br /> that the filters are changed at the appropriate interval. <br /> 4) Throw the empty, punctured can in the garbage. <br /> 5) Place non-empty cans in the waste drum next to the puncture station <br /> and record on the log. Every can that can't be punctured must be put in <br /> the waste collection container whole. Each addition to this container must <br /> be recorded on the container log so that the exact contents are known and <br /> can be disposed of properly. <br />