American Association of Physicists in Medicine reference conditions.
Air Movement and Control Association reference conditions.
Compressed Air and Gas Institute reference conditions.
DIN 1343: German standard for reference conditions (0°C, 101.325 kPa).
Electricity and Gas Inspection Act (Canada) reference.
Federal Aviation Administration reference conditions.
GOST 2939-63: Russian standard for gas measurement (20°C, 101.325 kPa).
International Standard Atmosphere: 288.15 K and 101.325 kPa.
ISO 13443: Natural gas standard reference conditions.
ISO 5011: Intake air conditioning for internal combustion engines.
Normal Temperature and Pressure: typically 293.15 K and 101.325 kPa.
Standard Ambient Temperature and Pressure: 298.15 K and 100 kPa.
Standard Cubic Foot reference conditions.
Standard Personnel Environment conditions.
IUPAC Standard Temperature and Pressure: 273.15 K and 100 kPa.
Historical STP based on 1 atm (101.325 kPa).
Internationally recognized reference sets of temperature and pressure.