Downloadable Calculation Scripts

Air density calculation

Scilab script to calculate air density with high degree of accuracy;
Full reference here;
The accuracy achievable is really good, full calculation and accuracy information from NIST here.

RTD PT1000 Callendar-Van Dusen implementation

Scilab script to calculate temperature from platinum RTD resistance value;
International Standard Atmosphere /US1962/72 Atmosphere model calulator for altitute <11000 m;
Scilab script to calculate air properties in standard atmosphere.