TY  - BOOK
AU  - Astm International
TI  - Standard Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources
UR  - https://drive.google.com/file/d/1JWjx7eFgtiInonOsrP1TdZRcBLpIasQD/view?usp=drivesdk
ER  -