Water meters for cold potable water and hot water - Part 1: Metrological and technical requirements (ISO 4064-1:2014); German version EN ISO 4064-1:2014— 49 стр.
Water meters for cold potable water and hot water - Part 1: Metrological and technical requirements (ISO 4064-1:2014); German version EN ISO 4064-1:2017— 56 стр.