Foreword

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This document was prepared by Technical Committee ISO/TC 30, Measurement of fluid flow in closed conduits, Subcommittee SC 2, Pressure differential devices, in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/SS F05, Measuring instruments,in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).

This second edition cancels and replaces the first edition (ISO 5167‑6:2019), which has been technically revised.

The main changes are as follows:

— this document is consistent with ISO/IEC Guide 98‑3;
— an error in Annex B has been corrected;

— the expansibility uncertainty is given as a relative uncertainty for ease of use with Part 1 (the calculated flow rate uncertainty is unchanged).

A list of all the parts in the ISO 5167 series can be found on the ISO website.

BS EN ISO 5167-6:2022

Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Wedge meters

Current

Published:

30 Nov 2022