T=22°C; P=101.325kPa. Medical physics standard (AAPM).
T=21.11°C (70°F); P=101.3kPa. Air Movement and Control Association.
T=20°C; P=100kPa. Compressed Air and Gas Institute standard.
T=0°C; P=101.325kPa. Industrial standard from DIN 1343.
T=15.56°C (60°F); P=101.6kPa. Energy-related industrial standard.
T=15°C; P=101.3kPa. Federal Aviation Administration standard.
T=20°C; P=101.33kPa. Former Soviet Union GOST standard.
T=15°C; P=101.325kPa. International Standard Atmosphere.
T=15°C; P=101.325kPa. Standard reference for natural gas (ISO).
T=20°C; P=101.3kPa. ISO internal combustion engine standard.
T=20°C; P=101.325kPa. EPA and NIST standard conditions.
T=25°C; P=101.325kPa. Standard Ambient Temperature and Pressure.
T=15.56°C; P=101.35kPa. U.S. Department of Transportation standard.
T=15°C; P=100kPa. Society of Petroleum Engineers standard.
T=0°C (273.15K); P=100kPa (1 bar). IUPAC standard since 1982.
T=0°C; P=101.325kPa (1 atm). Older NIST and ISO standard.
Standard conditions for temperature and pressure in scientific measurements.