What counts as a hazardous waste lid?
Lids should be constructed of a solid material. They should also be of such form so as to minimize the amount of vapors that could escape the container that they cover. Threaded lids or those of such quality as Tupperware would be considered proper for container closure. Foil, plastic trays, or loose fitting plastic lids would not be considered acceptable. Containers used to hold non-RCRA hazardous waste would not necessarily have to have lids or lids meeting these specifications. Back To FAQ List • Are pipettes contaminated with trace phenol and chloroform a hazardous waste? Chloroform is considered a hazardous waste in concentrations of 6.0ppm or greater. If a material being collected for disposal states that there is ‘trace’ chloroform, then the researcher creating the waste must decide whether the waste materials contain chloroform at that level. If the level of chloroform is less than 6.0ppm, then the material is non-RCRA hazardous waste and should be labeled as such to avoid the
