We’ve taken the traditional paper P/T chart you’ve relied on for so many years and adapted it for the technology of today. The DuPont Pressure-Temperature Calculator mobile app gives HVACR service technicians handy and accurate refrigerant data on the go, enabling quick and reliable system diagnostics and response. Refrigerant options on the app include all major refrigerant products, including DuPont? Freon?22 and Freon?12, as well as their common replacements like DuPont? Suva? 410A, 404A and DuPont? ISCEON? MO99? refrigerants. Data available for each refrigerant includes: % composition, physical, chemical, environmental properties, temperature glide, typical use applications, and lubricant recommendations.