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Metrological Performances Class C in all positions Class D in all positions for Dn15 and coaxial Measuring Range Very low starting flow allows leakage detection Very large measuring range with Qn/Qmin Ratio>180 (Qn 1.
4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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