Astm D618-21 Pdf
Specimens are conditioned in a standard laboratory atmosphere of 23 ± 2°C (73.4 ± 3.6°F) and 50 ± 10% relative humidity for at least 40 hours.
Specimens are conditioned in a standard laboratory atmosphere of 23 ± 2°C (73.4 ± 3.6°F) and 50 ± 10% relative humidity for at least 40 hours.