NRTL stands for National Recognized Testing Lab. NRTL Mark is the CSA Mark for USa. Meaning CSA will conduct all the tests for CSA and also will conduct the test for USA and will allow you to put the CSA and NRTL mark on your product. With the NRTL Mark you can sell your product ...
where P, x and y denote the pressure, and the mole fraction of water in the liquid and vapor phases, respectively; the subscript W stands for water; PWsat is the vapor pressure of water; and φW is the water vapor fugacity coefficient. Because S and ChCl have very low vapor pressure...