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DIN EN ISO 4064-3:2014
Water meters for cold potable water and hot water - Part 3: Test report format (ISO 4064-3:2014); German version EN ISO 4064-3:2014
This part of ISO 4064/OIML R 49 specifies a test report format to be used in conjunction with ISO 4064-1/OIML R 49-1 and ISO 4064-2/OIML R49-2 for water meters for cold potable water and hot water.
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Deutsches Institut für Normung [din]