本文件规定了几种常用制冷剂和制冷剂混合物的热物理性质。 本文件适用于制冷剂R12、R22、R32、R123、R125、R134a、R143a、R152a、R290、R600a、R717（氨）、R744（二氧化碳）、R1233zd（E）、R1336mzz（Z）、R11234yf和R1234ze（E）以及制冷剂混合物R404A、R407C、R410A和R507A。包括以下性质:密度、压力、内能、焓、熵、恒压热容、定容热容、声速和焦耳-汤姆逊系数，无论是在单相状态还是沿着液体蒸汽饱和边界。这些制冷剂的数字名称符合ISO817 注意1.R12、R22、R123是《蒙特利尔议定书》附件项下的受控物质A（R12）或附件C组I（R22，R123）。 注意2.R32、R125、R134a、R143a、R152a、R404A、R407C、R410A和R507A是《蒙特利尔议定书》附件项下的受控物质F或其混合物。

This document specifies the thermophysical properties of several commonly used refrigerants and refrigerant blends. This document is applicable to refrigerants R12, R22, R32, R123, R125, R134a, R143a, R152a, R290, R600a, R717 (ammonia), R744 (carbon dioxide), R1233zd(E), R1336mzz(Z), R1234yf and R1234ze(E) and to the refrigerant blends R404A, R407C, R410A, and R507A. The following properties are included: density, pressure, internal energy, enthalpy, entropy, heat capacity at constant pressure, heat capacity at constant volume, speed of sound, and the Joule-Thomson coefficient, in both single-phase states and along the liquid-vapour saturation boundary. The numerical designation of these refrigerants is that defined in ISO？817. NOTE？1？R12, R22, R123 are controlled substances under the Montreal Protocol, Annex？A (R12) or Annex？C Group？I (R22, R123). NOTE？2？R32, R125, R134a, R143a, R152a, R404A, R407C, R410A, and R507A are controlled substances under the Montreal Protocol, Annex？F or blend thereof.