Can CO2 gas concentrations be expressed in units of mg/m^3? | Vernier 1 of 2 https://www.vernier.com/til/3845/ Vernier Software & Technology https://www.vernier.com/til/3845/ (2 March, 2019) TECH INFO LIBRARY About this FAQ Created Jan 9, 2017 Updated Jan 9, 2017 Article #3845 Search FAQs Product Support FAQs Yes, CO2 gas concentration can be expressed in units of mg/m^3. However, the value is dependent upon temperature and pressure. At Standard Ambient Temperature and Pressure (SATP) of 25°C and 100 kPa, the conversion is: 1 ppm CO2 = 1.7758 mg/m^3 Logger Pro (version 3.13 and newer) and LabQuest 2 App (version 2.72 and newer) include this as a unit change option for the CO2 Gas Sensor. However,note that it is only valid at SATP. Need more assistance? Fill out our online support form or call us toll-free at 1-888-837-6437. Vernier Software & Technology 13979 SW Millikan Way Beaverton, OR 97005 United States of America Phone Fax Email 1-888-837-6437 503-277-2440 info@vernier.com 02-03-2019, 03:27 am Can CO2 gas concentrations be expressed in units of mg/m^3? | Vernier 2 of 2 https://www.vernier.com/til/3845/ 02-03-2019, 03:27 am