Astm D618-21 Pdf Now

Yes. Section 6 allows for alternative conditions (e.g., 23°C/75% RH for tropical simulations), but you must explicitly note the deviation from the standard atmosphere.

Plastics are hygroscopic and thermostatically sensitive. If you don't condition them: may fluctuate based on moisture content. Impact resistance can change with temperature shifts. Dimensional stability might fail due to thermal expansion. astm d618-21 pdf

relative humidity (RH). Duration depends on thickness: 40 hours for specimens and 88 hours for those : Oven conditioning at for 48 hours, followed by cooling in a desiccator. 23°C/75% RH for tropical simulations)

If you need help interpreting a specific section of D618-21 or applying it to a material, let me know — I’m glad to explain further. astm d618-21 pdf