Solar energy - Collector components and materials - Part 1: Evacuated tubes - Durability and performance (ISO 22975-1:2016); German version EN ISO 22975-1:2016— 39 стр.
Solar energy - Collector components and materials - Part 2: Heat-pipes for solar thermal application - Durability and performance (ISO 22975-2:2016); German version EN ISO 22975-2:2016— 33 стр.