本文件规定了能够根据系统的介质温差确定水基表面加热和冷却系统热通量的程序和条件。根据设计文件和模型，通过计算确定水基表面加热和冷却系统的热性能及其与本文件的一致性。这样就可以对水基表面加热和冷却系统进行统一的评估和计算。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies procedures and conditions to enable the heat flux in water-based surface heating and cooling systems to be determined relative to the medium differential temperature for systems. The determination of thermal performance of water-based surface heating and cooling systems and their conformity to this document is carried out by calculation in accordance with design documents and a model. This enables a uniform assessment and calculation of water-based surface heating and cooling systems.All current amendments available at time of purchase are included with the purchase of this document.