BS ISO 12764:2017 – TC:2020 Edition
$217.84
Tracked Changes. Measurement of fluid flow in closed conduits. Flowrate measurement by means of vortex shedding flowmeters inserted in circular cross-section conduits running full
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 76 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 44 | National foreword |
| 49 | Foreword |
| 50 | Introduction |
| 51 | 1 Scope 2 Normative references 3 Terms and definitions |
| 52 | 3.1 Definitions specific to this vortex flowmeter standard |
| 53 | 3.2 Definitions related to measurement of fluid flow in closed conduits |
| 54 | 3.3 Definitions related to the vocabulary used in metrology 4 Symbols and subscripts 4.1 Symbols |
| 55 | 4.2 Subscripts 5 Principle 5.1 Bluff body |
| 56 | 5.2 Shedding vortices detection/sensors 5.3 Strouhal number |
| 57 | 6 Flowmeter description 6.1 Physical components |
| 58 | 6.1.1 Flow tube 6.1.2 System output |
| 59 | 6.2 Marking 6.3 Safety issues 6.3.1 Pressure and fluid-wetted parts 6.3.2 In-line instrumentation, testing 6.3.3 Materials 7 Application 7.1 Sizing |
| 60 | 7.2 Pressure loss and cavitation 7.3 Swirl and undeveloped profile |
| 61 | 7.4 Flow stability 7.5 Vibration 8 Installation 8.1 General 8.2 Installation location 8.3 Piping 8.3.1 Straight sections |
| 62 | 8.3.2 Mating pipe 8.3.3 Position of valves 8.3.4 Dual phase flow 8.3.5 Bypass 8.3.6 Additional process measurements for compensation |
| 63 | 8.3.7 Installation orientation, electronics 8.3.8 Bluff body orientation 8.3.9 Full pipe condition 8.3.10 Condensable gas 8.3.11 Extreme conditions |
| 64 | 8.3.12 New installations 9 Operation 9.1 Operating limits 9.2 Start-up procedure 9.3 Shift of calibration 9.4 Maintenance 10 Performance characteristics 10.1 Reynolds number range 10.2 P-T conditions 10.3 Performance disturbing influences |
| 65 | 11 Calibration (K-factor determination) 11.1 Mean K-factor 11.2 In situ calibration |
| 66 | Annex A (informative) Period jitter and its effects on calibration |
| 68 | Annex B (informative) Special considerations for steam |
| 72 | Bibliography |
