Hi,--- For more information about the DCHAS-L e-mail list, contact the Divisional membership chair at membership**At_Symbol_Here**dchas.org Follow us on Twitter **At_Symbol_Here**acsdchasI have been CHO for about a year, so still pretty new.One of the questions that has come up is What is the best practice for disposing of GC/MS vials after they have been used. I was thinking you would uncap them add the excess sample to a hazardous waste bottle. But the faculty members tell me they don't have to remove that leftover 1-2ml of sample and solvent and they just put the vials into broken glass even if they are still half full with solvent.Thanks.