In this paper, reference values and reference correlations for the thermal conductivity and viscosity of pure fluids are reviewed. Reference values and correlations for the thermal conductivity and the viscosity of pure fluids provide thoroughly evaluated data or functional forms and serve to help calibrate instruments, validate or extend models, and underpin some commercial transactions or designs, among other purposes. The criteria employed for the selection of thermal conductivity and viscosity reference values are also discussed; such values, which have the lowest uncertainties currently achievable, are typically adopted and promulgated by international bodies. Similar criteria are employed in the selection of reference correlations, which cover a wide range of conditions, and are often characterized by low uncertainties in their ranges of definition.

中文翻译：

---

流体导热率和粘度的参考值和参考相关性


本文回顾了纯流体导热系数和粘度的参考值和参考相关性。纯流体的导热率和粘度的参考值和相关性提供了彻底评估的数据或函数形式，并有助于校准仪器、验证或扩展模型以及支持一些商业交易或设计等目的。还讨论了用于选择导热系数和粘度参考值的标准；这些价值观目前可实现的不确定性最低，通常由国际机构采用和颁布。在参考相关性的选择中采用了类似的标准，这些标准涵盖了广泛的条件，并且通常具有其定义范围的不确定性较低的特点。