Wait! Before you dump your waste... Rock the waste container gently to feel how full it is. Is it nearly full? Ok, time to change it! See part VI. --------I. The Two Mandatory Chemical Waste Bottles Inorganic (aqueous) and organic waste containers are available in the large hood by the sink. Inorganic containers should only be glass or plastic bottles. Organic waste containers should only be glass bottles, or metal bottles in a pinch. ----------II. Where to Find/Store Empty Solvent Bottles All empty chemical bottles are kept underneath the small hood in the left-most cabinet. Please add to this collection when a solvent bottle is empty! If you have an empty solvent bottle, scribble out the label and put it in the left cabinet. ----------III. Where to Find Waste Tags Waste tags are in the black filing cabinet near the bench holding the SAXS components. They are in the top drawer (Instrument Documentation) in a file folder that says Waste Forms. These are long, skinny paperboard forms with a sticky back. They can be stuck to the bottles by their sticky backs, or taped with packaging tape to prevent chemical contamination. ----------IV. Filling out Hazardous Waste Tags Waste tags must be filled out BEFORE waste is added to a container. In other words, as soon as you decide to put your waste in a bottle, you need to attach a tag to keep track of what’s in it. Usually we just list the major solvents/materials that people usually work with, and leave it at that. You can also add to the list over time if you add a substantial amount of something not listed there. Please put a % Total amount in the right column as well (summing up to 100%.) This tag must be CLEAN & LEGIBLE before waste pickup. Sometimes you need to re-write them if chemicals are spilled on them. ---------V. Other Chemical Waste Bottles If you prefer to keep a smaller, separate waste bottle for super-hazardous stuff or something out of the ordinary (carbon black, inorganic particles, solidlike gels, etc.) you may do so. The container must be able to be sealed, and it must have a Hazardous Waste tag at all times. It should be kept in one of the hoods and kept track of. Do not forget about it! --------VI. Changing Waste Containers If you notice that a waste container is getting full, please replace it. Cap the bottle and wash down the sides with solvent to remove any spill residue. If the tag is complete and legible, then you can just take the full waste bottle and move it to the right cabinet underneath the small hood. If the tag is incomplete or illegible (if some chemical is spilled on it, etc.) then get a new tag and write it up. Make sure to securely affix it to the bottle. After you have moved the full container to the waste collection area, get an empty bottle out of the left cabinet under the small food, affix a tag, fill it out, and place the labeled bottle in the large hood. --------VII. Waste Pickup If the right cabinet underneath the small hood is getting full, it’s time for waste pickup! Fill out the form linked on the Osujilab Wiki Safety homepage & email it to the address listed on the form. Make sure all bottles are cleaned and tightly closed. Sharps/biohazard boxes must also be collected periodically. See link on Osujilab Wiki Safety homepage. --------VIII. Sharps Boxes Sharps boxes & lids can be acquired for free in the stock room. They should be filled only to the line on the box, then the lid should be closed. These should be stored in a cardboard Biohazard box (request from EH&S) for collection.