where p0 is the ideal/nominal pressure and dT/dp is the pressure coefficient defined by ITS-90
where p0 is the ideal/nominal pressure and dT/dp is the pressure coefficient defined by ITS-90 (values are given in Appendix B). For melting and freezing points in open cells without any pressure control or measurement, the pressure is determined by the weather and altitude at the location of the measurement. This leads to pressure variations […]