DIN EN ISO 22975-1-2017 太阳能.集热器部件与材料.第1部分:真空管.耐久性和性能(ISO 22975-1-2016);德文版本EN ISO 22975-1-2016
Solar energy - Collector components and materials - Part 1: Evacuated tubes - Durability and performance (ISO 22975-1:2016); German version EN ISO 22975-1:2016