本欧洲标准规定了适用于小型定制系统的商店的性能表征的测试方法，如EN 12977 1中所述。 根据本文件测试的商店通常用于太阳能组合系统。然而，也可以根据本文件中规定的测试方法来评估所有其它具有水作为存储介质（例如用于热泵系统）的热存储器的热性能。 本文件适用于标称容积高达3 000 l，无集成燃烧器的组合。 注意本文档基于对EN 12977 3:2012的引用

This European Standard specifies test methods for the performance characterization of stores which are intended for use in small custom built systems as specified in EN 12977 1. Stores tested according to this document are commonly used in solar combisystems. However, the thermal performance of all other thermal stores with water as a storage medium (e.g. for heat pump systems) can be also assessed according to the test methods specified in this document. This document applies to combistores with a nominal volume up to 3 000 l and without integrated burner. NOTE This document is extensively based on references to EN 12977 3:2012.