TY - RPRT TI - A study of heat pump performance using mixtures of R32R134a and R32R125R134a as Drop-In working fluids for R22 with and without a liquid-suction heat exchanger PY - 1993 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 5321 DO - 10.6028/NIST.IR.5321 ER -