1、Manual of Petroleum Measurement Standards Chapter 4Proving Systems Section 7Field Standard Test MeasuresTHIRD EDITION, APRIL 2009Manual of Petroleum Measurement Standards Chapter 4Proving SystemsSection 7Field Standard Test MeasuresMeasurement Coordination DepartmentTHIRD EDITION, APRIL 2009Special
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6、ith which this publication may conflict.API publications are published to facilitate the broad availability of proven, sound engineering and operating practices. These publications are not intended to obviate the need for applying sound engineering judgment regarding when and where these publication
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9、electronic, mechanical, photocopying, recording, or otherwise, without prior written permission from the publisher. Contact the Publisher, API Publishing Services, 1220 L Street, N.W., Washington, D.C. 20005.Copyright 2009 American Petroleum InstituteForewordThis edition of this standard consolidate
10、s the latest changes and improved technology in field standard test measures since it was first published in October 1988. Units of measurement in this standard are U.S. customary (USC) units and metric (SI) units consistent with North American industry practices.This standard has been developed thr
11、ough the cooperative efforts of many individuals from industry under the sponsorship of the American Petroleum Institute (API) and with the assistance of the National Institute of Standards and Technology (NIST).Nothing contained in any API publication is to be construed as granting any right, by im
12、plication or otherwise, for the manufacture, sale, or use of any method, apparatus, or product covered by letters patent. Neither should anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent.This document was produced under API sta
13、ndardization procedures that ensure appropriate notification and participation in the developmental process and is designated as an API standard. Questions concerning the interpretation of the content of this publication or comments and questions concerning the procedures under which this publicatio
14、n was developed should be directed in writing to the Director of Standards, American Petroleum Institute, 1220 L Street, N.W., Washington, D.C. 20005. Requests for permission to reproduce or translate all or any part of the material published herein should also be addressed to the director.Generally
15、, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years. A one-time extension of up to two years may be added to this review cycle. Status of the publication can be ascertained from the API Standards Department, telephone (202) 682-8000. A catalog of API publicat
16、ions and materials is published annually by API, 1220 L Street, N.W., Washington, D.C. 20005.Suggested revisions are invited and should be submitted to the Standards Department, API, 1220 L Street, NW, Washington, D.C. 20005, standardsapi.org.iiiContentsPageIntroduction. . . . . . . . . . . . . . .
17、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18、. . . . 12 Normative References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Terms and Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19、 . . . . . . . . . . . . . . . 14 Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34.2 Materials and Fabrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34.3 Gauge Glass. . . . . . . . . . . . . . . . . . . . . . .
21、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34.4 Drain Lines and Outlet Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34.5 Levels and Leveling . . . .
22、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.6 Scale Plate and Graduations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.7 Name
23、plate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84.8 Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24、 . . . . . . . . . . . . . . . . . . 95 Inspection and Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95.2 Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95.3 Cleaning Procedures. . . . . . . . . . . . . . . . . .
26、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106.1 General . . . . . . .
27、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106.2 Calibrated Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28、 . . . . . . 106.3 Calibration Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116.4 Number of Calibration Runs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29、. . . . . . . . . . . . . . . . . 116.5 Seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116.6 Disputes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 Calibration Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127.1 General . . . . . . . . . . . . . . . . . . . . .
31、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127.2 Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 Operations
32、 and Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128.1 Primary Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33、. . . . . . . . . 128.2 Field Use of Volumetric Test Measures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Annex A (informative) Calibration Frequency of Test Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34、. . . . 14Annex B (informative) Example of NIST Report of Calibration for Field Standard Test Measure . . . . . . . . . . . 16Figures1 Field Standard Test MeasureInvertible Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Field Standard Test Me
35、asureBottom Drain Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Gauge Glass and Scale Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Tables1 Scale Graduations for Normal
36、-sensitivity Test Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Scale Graduations for High-sensitivity Test Measures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9vIntroductionThe primary purpose of a field standard te
37、st measure is to provide a standardized volume, used for the calibration of displacement and tank provers, when calibrated by the waterdraw method. A field standard test measure is a vessel fabricated to meet specific design criteria and calibrated by a National Metrology Institute (NMI). The NMI of
38、 the United States is the National Institute of Standards and Technology (NIST). Throughout this document, issues of traceability are addressed by reference to NIST. All field standard test measures used for prover calibrations in the United States shall have a current “Report of Calibration,” issue
39、d by NIST.In countries other than the United States, other NMIs may be used. On some occasions, the same test measure may be calibrated by two or more different NMIs for use in different countries, e.g. NIST and the Canadian Standards Agency (CSA) may both calibrate the same test measure. Calibratio
40、ns by different NMIs may result in different volumes. Typically, this is due to different reference conditions, procedures, methods (gravimetric vs volumetric), calibration fluids and drain times.vi1Chapter 4Proving SystemsSection 7Field Standard Test Measures1 ScopeThis standard details the essenti
41、al elements of field standard test measures by providing descriptions, construction requirements, as well as inspection, handling, and calibration methods. Bottom-neck scale test measures and prover tanks are not addressed in this document. The scope of this standard is limited to the certification
42、of “delivered volumes” of test measures.2 Normative ReferencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. API Manual of Petroleum Measurement Standards (MPMS) Chapter 1, Vocabulary API MPMS Chapter 4
43、.2, Displacement Provers API MPMS Chapter 4.4, Tank Provers API MPMS Chapter 4.8, Operation of Proving Systems API MPMS Chapter 4.9, Methods of Calibration for Displacement and Volumetric Tank ProversAPI MPMS Chapter 7, Temperature Determination API MPMS Chapter 11, (all sections) Physical Propertie
44、s Data API MPMS Chapter 12, (all sections) Calculation of Petroleum Quantities API MPMS Chapter 13, (all sections) Statistical Aspects of Measuring and Sampling NIST Calibration Services for Liquid Volume 1, Quality System Manual QM-IV-8361 for the Liquid Volume Calibration ServicesNIST Handbook 105
45、-3, Specifications and Tolerances for Reference Standards and Field Standard Weights and Measures, Part 3: Specifications and Tolerances for Graduated Neck Type Volumetric Field StandardsNIST Special Publication 250-72, NIST Calibration Services for Liquid VolumeNIST Technical Note 1297 (1994), Guid
46、elines for Evaluating and Expressing the Uncertainty of NIST Measurement ResultsNOTE All references in this standard are to the most current NIST documents. More current revisions of these documents may replace those listed above. Refer to the NIST web address: www.nist.gov/fluid_flow or http:/ts.ni
47、st.gov/weightsandmeasures/pubs.cfm for the most current documents.3 Terms and DefinitionsFor the purposes of this document, the following definitions apply.3.1borosilicate glassA glass with a low coefficient of thermal expansion.1National Institute of Standards and Technology, 100 Bureau Drive, Stop
48、 3460, Gaithersburg, Maryland 20899, www.nist.gov.2 API MPMS CHAPTER 4PROVING SYSTEMS3.2calibrated volumeAlso defined as the field standard test measure base volume (BMV); the delivered volume of a field standard test measure, at its reference temperature, between its defined “full and empty” levels
49、.3.3calibrationA set of operations which establish, under specified conditions, the relationship between the values indicated by a measuring device and the corresponding known values indicated when using a suitable measuring standard.3.4cessation of main flowDuring the draining of a field standard test measure, the moment when the full discharging water stream “breaks” and becomes a small trickle.3.5clingageThe film of liquid that adheres to the inside surface of a field standard test measure after it has been drained and is considered empty.3.6contained volumeThe volume of liq
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