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JJF 1358-2012: Calibration Specification for DN1 000~DN15 000 Liquid Ultrasonic Flowmeters Calibration by Non Practical Flow Method
Status: Valid JJF 1358: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJF 1358-2012 | English | 599 |
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Calibration Specification for DN1 000~DN15 000 Liquid Ultrasonic Flowmeters Calibration by Non Practical Flow Method
| Valid |
JJF 1358-2012
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| JJF 1358-1990 | English | 199 |
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O.T.N. for Primary Standard Chemicals
| Obsolete |
JJF 1358-1990
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Basic data | Standard ID | JJF 1358-2012 (JJF1358-2012) | | Description (Translated English) | Calibration Specification for DN1 000~DN15 000 Liquid Ultrasonic Flowmeters Calibration by Non Practical Flow Method | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A53 | | Classification of International Standard | 17.120 | | Word Count Estimation | 26,211 | | Quoted Standard | JJG 1030-2007; JJF 1004-2004; JJF 1059-1999; GB/T 23900-2009; IEC 41-1991; ASME PTC 18-2002 | | Regulation (derived from) | AQSIQ Announcement No. 132 of 2012 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | | Summary | This standard applies to the time difference method for the working principle of the closed pipe liquid-contact multi-channel ultrasonic flowmeter during non-real-calibration and verification. Meter size range is: (1 ~ 15) m. | JJF 1358-2012: Calibration Specification for DN1 000~DN15 000 Liquid Ultrasonic Flowmeters Calibration by Non Practical Flow Method
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Calibration Specification for DN1 000 ~ DN15 000 Liquid Ultrasonic Flowmeters Calibration by Non Practical Flow Method
People's Republic of China National Metrology Technical Specifications
Non-real flow calibration by DN1000 ~ DN15000
Liquid ultrasonic flowmeter calibration specification
CalibrationSpecificationforDN1000 ~ DN15000LiquidUltrasonic
Issued on. 2012-09-03
2012-12-03 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
Non-real flow calibration by DN1000 ~ DN15000
Liquid ultrasonic flowmeter calibration specification
CalibrationSpecificationforDN1000 ~ DN15000
by
Focal point. the National Technical Committee on Metering flow capacity
The main drafting units. China Institute of Metrology
Participated in the drafting. the National Water flow metering station Large
China Three Gorges Corporation
Nanjing Shenrui Electrical System Control Co., Ltd.
Tangshan Huizhong Instrumentation Co., Ltd.
Beijing Chang Min Technology Co., Ltd.
This specification flow capacity commissioned the National Technical Committee responsible for the interpretation of measurement
The main drafters of this specification.
Meng Tao (China Institute of Metrology)
Drafters participate.
Miao Yu-sheng (Grand National Water flow metering station)
Hu Heming (China Institute of Metrology)
Li Youping (China Three Gorges Corporation)
Xu Chunrong (Nanjing Shenrui Electric System Control Co., Ltd.)
The new tension (Tangshan Huizhong Instrumentation Co., Ltd.)
Puqi Huan (Beijing Chang Min Technology Co., Ltd.)
table of Contents
1 Scope (1)
2. References (1)
3 Terms and Definitions (1)
4 Overview (1)
4.1 Composition (1)
4.2 works (2)
4.3-channel arrangement in the form of geometric parameters and related meaning (3)
Use 4.4 (3)
5 Metrological characteristics (3)
Flow measurement in a 5.1 (3)
6 calibration conditions (4)
Environmental conditions 6.1 (4)
6.2 Calibration medium condition (4)
6.3 measuring equipment (4)
7 calibration items and calibration methods (4)
7.1 calibration items (4)
7.2 geometrical parameters calibration (4)
7.3 Timing System resolution inspection (6)
7.4 Timing delay calibration system (6)
7.5 Flowmeter zero flow test (7)
7.6 flow rate calculation function tests (8)
7.7 Integral method checks (8)
7.8 site flow conditions impact assessment (8)
7.9 operating state inspection (9)
Expression 8 calibration results (9)
9 Recalibration interval (9)
Appendix A flow meter calibration using the CMM geometry (10)
Appendix B Using Total Station flowmeter calibration geometry (12)
Appendix C integration model algorithm inspection method (14)
Appendix D flow field conditions on the performance of the reference value on the flowmeter (16)
Appendix E Evaluation of Uncertainty (18)
Appendix F calibration certificate within the page (20)
Non-real flow calibration by DN1000 ~ DN15000
Liquid ultrasonic flowmeter calibration specification
1 Scope
This calibration specifications applicable to the time difference method for the principle of a closed conduit with a liquid-contact multi-channel ultrasonic flowmeter
The non-real flow calibration and verification period.
Flowmeter size range is. (1 ~ 15) m.
2. References
This specification refers to the following documents.
JJG1030-2007 ultrasonic flowmeter
JJF 1004-2004 flow measurement terminology and definitions
JJF 1059-1999 Evaluation and Expression of Uncertainty in Measurement
GB/T 23900-2009 destructive testing material for measuring ultrasonic velocity
IEC 41-1991 determine turbines, storage pumps and pump turbine hydraulic performance of the site acceptance test (Field
acceptanceteststodeterminethehydraulicperformationofhydraulicturbines, storage
pumpsandpump-turbines)
ASMEPTC18-2002 (RevisionofPTC18-1992) turbine and pump turbine performance test rules
Fan (HYDRAULICTURBINESANDPUMP-TURBINES, PerformanceTestCodes)
For dated references, only the dated edition applies to this specification; undated reference documents
Member, the latest edition (including any amendments) applies to this specification.
3 Terms and Definitions
3.1 channel acousticpath
Ultrasonic signals between the pair of ultrasonic transducers propagation route.
3.2-channel angular transmissionangle
The angle between the channel and the pipe axis.
More than 3.3-channel ultrasonic flowmeter multiplepathsultrasonicflowmeters
There are two or more pairs of transducers flowmeter.
3.4 contact ultrasonic flowmeter wettedultrasonicflowmeters
The transducer is embedded in a fluid conduit, the transducer in direct contact with the fluid flow meter.
4 Overview
4.1 Composition
Contact multi-channel ultrasonic flowmeter (hereinafter referred to as meter) from the meter body in general, to ultrasonic transducer
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