Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Terminology used in different types of plastics recycling and recovery.
| ASTM D5033 definitions | equivalent ISO 15270 (draft) definitions | other equivalent terms |
|---|---|---|
| primary recycling | mechanical recycling | closed-loop recycling |
| secondary recycling | mechanical recycling | downgrading |
| tertiary recycling | chemical recycling | feedstock recycling |
| quaternary recycling | energy recovery | valorization |
