Technical specifications: Mass fraction of 1,1,1,2-tetrafluoroethane≥99.9% Mass fraction of moisture≤ 0.001 Acidity (as HCL) ≤0.00001 Mass fraction of evaporated residue≤0.01 Volume fraction of non-condensable gases at 25 degree≤1.5 the product is used as refrigernant or to make blend refrigerants such as R404, R408, R507.