Is STP 25 Degrees Celsius?
Is STP 25 Degrees Celsius? SATP is at 25 degrees C (298.15 K) and 101 kPa (essentially 1 atmosphere, 0.997 atm). Another standard is NTP, which stands for Normal Temperature and Pressure. This is defined for air at 20 degrees C (293.15 K, 68 degrees F) and 1 atm. Is 20 degrees Celsius in STP?