Standard Practice for Conditioning Plastics for Testing - ASTM
Now, what does ASTM D618-21 cover? Let me confirm. ASTM D618 is the standard practice for conditioning plastics for testing. It outlines the procedures for conditioning plastic materials to control moisture and temperature before testing to ensure reproducible results. The -21 suffix indicates the year of the latest revision, so the 2021 version. Therefore, the user is likely asking about ASTM D618-21, which is the current version of the conditioning practices for plastics.
Which option would you like?
Water immersion at 50°C for 48 hours, then cooled to 23°C before testing. Procedure D: High humidity conditioning (96% RH at 23°C). Notation and Technical Details