I.S. EN ISO 5167-1:2003
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
MEASUREMENT OF FLUID FLOW BY MEANS OF PRESSURE DIFFERENTIAL DEVICES INSERTED IN CIRCULAR CROSS-SECTION CONDUITS RUNNING FULL - PART 1: GENERAL PRINCIPLES AND REQUIREMENTS
Hardcopy , PDF
03-04-2023
English
01-01-2003
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and subscripts
4.1 Symbols
4.2 Subscripts
5 Principle of the method of measurement and computation
5.1 Principle of the method of measurement
5.2 Method of determination of the diameter ratio of
the selected standard primary device
5.3 Computation of flowrate
5.4 Determination of density, pressure and temperature
6 General requirements for the measurements
6.1 Primary device
6.2 Nature of the fluid
6.3 Flow conditions
7 Installation requirements
7.1 General
7.2 Minimum upstream and downstream straight lengths
7.3 General requirement for flow conditions at the primary device
7.4 Flow conditioners (see also Annex C)
8 Uncertainties on the measurement of flowrate
8.1 Definition of uncertainty
8.2 Practical computation of the uncertainty
Annex A (informative) - Iterative computations
Annex B (informative) - Examples of values of the pipe wall
uniform equivalent roughness, k
Annex C (informative) - Flow conditioners and flow straighteners
Bibliography
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