This app is helpful for all petrol pumps to replace your physical copy of your ASTM 53 B table which is used to convert observed density to standard density at 15 degree Centigrade. This can be very useful and save all your time looking up the old copy of density conversion tables in the Digital world. This app is very simple to use with only two fields of input - observed density and temperature. It will convert into standard density with a blink of any eye. It can be easily used by any person related to a petrol pump with a smart phone. _________________________________ We are always excited to hear from you. We are eager to hear any feedback, queries or suggestions from you.