Draft Document - Hydrometry - Performance requirements and test procedures for water monitoring equipment - Devices for the determination of flow - Part 2: Closed conduit instrumentation; German and English version prEN 17694-2:2021
文件草案——液体比重计——水监测设备的性能要求和试验程序——流量测定装置——第2部分:封闭管道仪表；德文和英文版本prEN 17694-2:2021
2021-10-01
DIN EN 17694-1-DRAFT
Draft Document - Hydrometry - Performance requirements and test procedures for water monitoring equipment - Devices for the determination of flow - Part 1: Open channel instrumentation; German and English version prEN 17694-1:2021
文件草案——液体比重计——水监测设备的性能要求和试验程序——流量测定装置——第1部分:明渠仪表；德文和英文版本prEN 17694-1:2021