Used Antifreeze Acceptance Criteria
First time suppliers must provide a minimum representative one-quart sample of the used antifreeze they intend to recycle before shipping the used coolant to our facility.
Our technicians will perform six tests on the sample to determine its suitability for recycling. We require a minimum of two days to perform the analyses.
There is no processing charge for used antifreeze that meets our acceptance criteria. The only cost to your organization would be shipping.
Contaminants that would prohibit recycling include:
- Carburetor or brake cleaners
- Transmission or brake fluids
- Windshield washer fluids
We suggest the use of best management practices to minimize the risk of contamination.
EET uses the following criteria to evaluate the acceptability of used antifreeze for recycling.
|Refractive Index||25% min.||<25%||*|
|Centrifuge||2 % max.||>2%
|Excessive Salt||Conductivity meter||<6000 µS/cm||>6000 µS/cm||N/A|
|Total Halogens (ppm)
||Hydroclor-Q test Kit By Dexsil Corporation||<500||N/A
||Reject if >500|
||Caustic Soda Addition1
|<50 ppm||>50 ppm||*|
|pH||pH Meter||6.0 - 11.0||N/A||Outside of acceptable levels.
|1The threshold odor
concentration of ammonia at alkaline pH is approximately
* Case-by-case basis
Customers must complete a Spent Glycol Information Form, which provides detailed information about the shipment, and return it with the sample. Contact EET for a copy.
We only accept bulk shipments of used antifreeze. The minimum volume required for a shipment is 2,000 gallons. Smaller amounts of used antifreeze should be sent to a designated transfer facility.
EET does not provide residential antifreeze collection or recycling services but encourages consumers to take used antifreeze to state-approved collection centers. We only accept bulk shipments having a minimum volume of 2,000 gallons.
Contact EET for more information about our antifreeze recycling services.