IUPAC definition : Abbreviation for standard temperature (273.15 K or 0 C) and pressure (10E5 Pa); usually
employed in reporting gas volumes. Note that flow meters calibrated in standard gas
volumes per unit time often refer to volumes at 25 C, not 0 C.;
Abbreviation for standard temperature (273.15 K or 0 C) and pressure (10E5 Pa); usually
employed in reporting gas volumes. Note that flow meters calibrated in standard gas
volumes per unit time often refer to volumes at 25 C, not 0 C.