UNI EN ISO 5167-1 : 2004
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
MEASUREMENT OF FLUID FLOW BY MEANS OF PRESSURE DIFFERENTIAL DEVICES INSERTED IN CIRCULAR CROSS-SECTION CONDUITS RUNNING FULL - PART 1: GENERAL PRINCIPLES AND REQUIREMENTS
22-09-2022
01-10-2004
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 requirements for flow conditions at the primary
device
7.4 Flow conditioners (see also Annex C)
8 Uncertainties on the measurement of flow-rate
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
Specifies the geometry and method of use of nozzles, orifice plates and Venturi tubes and when they are inserted in a conduit running full to determine the flow rate of the fluid flowing in the conduit.
| Committee |
CT 55
|
| DevelopmentNote |
Supersedes CNR UNI 10023. (10/2002)
|
| DocumentType |
Standard
|
| PublisherName |
Ente Nazionale Italiano di Unificazione (UNI)
|
| Status |
Withdrawn
|
| Supersedes |
| Standards | Relationship |
| ONORM EN ISO 5167-1 : 2003 | Identical |
| ISO 5167-1:2003 | Identical |
| NF EN ISO 5167-1 : 2003 | Identical |
| UNE-EN ISO 5167-1:2003 | Identical |
| NBN EN ISO 5167-1 : 2003 | Identical |
| NEN EN ISO 5167-1 : 2003 | Identical |
| NS EN ISO 5167-1 : 2ED 2003 | Identical |
| I.S. EN ISO 5167-1:2003 | Identical |
| SN EN ISO 5167-1 : 2003 | Identical |
| BS EN ISO 5167-1:2003 | Identical |
| EN ISO 5167-1:2003 | Identical |
| DIN EN ISO 5167-1:2004-01 | Identical |
| UNI 9167 : 2009 | INITIAL PRESSURE AND REDUCTION PLANTS FOR NATURAL GAS - DESIGN, CONSTRUCTION AND TESTING |
| UNI/TS 11291-2 : 2010 | GAS MEASUREMENT SYSTEMS - HOURLY BASED GAS METERING SYSTEMS - PART 2: CTE PROTOCOL |
| UNI TS 11291-1 : 2013 | GAS MEASUREMENT SYSTEMS - HOURLY BASED GAS METERING SYSTEMS - PART 1: GENERAL REQUIREMENTS FOR REMOTE READING OR REMOTE MANAGEMENT SYSTEM |
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