DIN EN ISO 4064-1:2014 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 has been changed from DIN EN 14154-1:2011 Water meters - Part 1: General requirements; German version EN 14154-1:2005+A2:2011.
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