Containers with less than 3% of their contents that are not contaminated with infectious material or do not contain a p-listed material, such as stock bottles, laboratory glassware, and plasticware must be triple rinsed prior to disposal.
- Laboratory glassware or plasticware contaminated with biological material must be disposed of as Regulated Medical Waste (RMW)
- P-listed material, even when empty, must be disposed of as hazardous waste
- Sample vials with small amounts of chemicals must be collected as hazardous waste if it's unable to be rinsed
The Triple Rinse Process
After removing as much product as possible, your empty chemical container may be rinsed and disposed of or reused to store waste by following these steps:
- Using a small amount of solvent capable of removing the contaminant (water, acetone, etc.), rinse the inside of the container.
- Rinse must be collected as hazardous waste of the original waste content and you may combine compatible wastes into one waste container.
- Repeat this step two more times for a total of three rinses.
- When the container is empty and ready to be discarded, deface the container’s label as depicted below and clearly write "Empty" and/or “Triple Rinsed".
Labels must be defaced prior to disposal
Reuse of Empty or Triple Rinsed Containers
Empty or triple rinsed containers may be reused for the collection of hazardous wastes, if:
Empty P-listed Material
For all empty containers that previously held a p-listed material, do not triple rinse!
These containers must be disposed of as hazardous waste, even if they’re empty.
Contact firstname.lastname@example.org for any questions regarding p-listed container disposal
Common P-Listed Waste
|Chemical Name||CAS Number|
|Cyanide salts (inorganic)||Varies|
|Copper cyanide (Cu(CN))||544-92-3|
|Nicotine, & salts||54-11-5|
|Nitrous and Nitric oxide||10102-44-0,
|Potassium cyanide (KCN)||
For the complete list of p-listed chemicals, visit the U.S. Environmental Protection Agency's website
Recycling and Disposal of Empty Containers
Triple rinsed plastics other than #1 and #2 written in the universal recycling symbol (♻) must be disposed of in the trash.
Town of Brookhaven does not recycle plastics other than #1 or #2.
Triple rinsed glass containers must be disposed of in the trash if they’re not being
Glass containers that have been triple rinsed may be placed in garbage bags, corrugated cardboard boxes or "broken glass" boxes before being disposed of.
Town of Brookhaven does not recycle glass and glassware in recycling containers will not be accepted.
Under no circumstances are containers labeled with the international radioactive symbol, biohazard symbol, or with the words "Hazardous Waste" allowed to be disposed of in the trash.