Assertion: ppb ozone | /r/HasProperty | a temperature of 21 ± 2 °c
Facets:
Source sentences:
text: The ozone removal was studied at 50 ± 1 ppb ozone, a relative humidity of 50 ± 5%, a temperature of 21 ± 2 °C, and an air flow rate of 900 ± 10 mL min-1 through the FLEC (air velocity ca.
text: The ozone removal was studied at 50 ± 1 ppb ozone, a relative humidity of 50 ± 5%, a temperature of 21 ± 2 °C, and an air flow rate of 900 ± 10 mL min-1 through the FLEC (air velocity ca.