API MPMS 17 10 2-2016 Manual of Petroleum Measurement Standards Chapter 17 10 Measurement of Cargoes On Board Marine Gas Carriers Part 2-Liquefied Petroleum and.pdf

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1、Manual of Petroleum Measurement StandardsChapter 17.10Measurement of Cargoes On Board Marine Gas CarriersPart 2Liquefied Petroleum and Chemical GasesEl Hydrocarbon Management HM 55SECOND EDITION, MARCH 2016API MPMS Chapter 17.10.2/EI HM 55Measurement of Cargoes on Board Marine Gas CarriersLiquefied

2、Petroleum and Chemical GasesSecond EditionMarch 2016Published jointly byAPI and ENERGY INSTITUTE LONDONThe Energy Institute is a professional membership body incorporated by Royal Charter 2003Registered charity number 1097899Special Notes and DisclaimersAPI and EI publications are recommended for ge

3、neral adoption but should be read and interpreted in conjunction withWeights and Measures, Safety, Customs and Excise and other regulations in force in the country in which they are tobe applied. With respect to particular circumstances, local, state, and federal laws and regulations should bereview

4、ed. Such regulatory requirements have precedence over corresponding clauses in API/EI publications.However, where requirements of API/EI publications are more rigorous, then their use is recommended. The information contained in this publication is provided as guidance only. Neither API and EI nor a

5、ny of API/EIsemployees, subcontractors, consultants, committees, or other assignees make any warranty or representation, eitherexpress or implied, with respect to the accuracy, completeness, or usefulness of the information contained herein, orassume any liability or responsibility for any use, or t

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7、ot rely exclusively on the information contained in this document. Sound business,scientific, engineering, and safety judgment should be used in employing the information contained herein.API/EI joint publications may be used by anyone desiring to do so. Every effort has been made by the Institutes

8、toassure the accuracy and reliability of the data contained in them; however, the Institutes make no representation,warranty, or guarantee in connection with this publication and hereby expressly disclaim any liability or responsibilityfor loss or damage resulting from its use or for the violation o

9、f any authorities having jurisdiction with which thispublication may conflict. API/EI joint publications are published to facilitate the broad availability of proven, sound engineering and operatingpractices. These publications are not intended to obviate the need for applying sound engineering judg

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11、mplication or otherwise, forthe manufacture, sale, or use of any method, apparatus, or product covered by letters patent. Neither should anythingcontained in the publication be construed as insuring anyone against liability for infringement of letters patent.API/EI are not undertaking to meet the du

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13、 or exclude liability for death or personal injury caused by ownnegligence.The Energy Institute is a professional membership body incorporated by Royal Charter 2003.Registered charity number 1097899, EnglandCopyright 2016 by API, Washington DC and Energy Institute, London:All rights reserved.No part

14、 of this work may be reproduced, stored in a retrieval system, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission from the publisher.ForewordThis publication was prepared jointly by the American Petroleum Institute Committee o

15、n Petroleum Measurement andthe Energy Institute Hydrocarbon Management Committee. The American Petroleum Institute Committee on Petroleum Measurement (COPM) and the Energy InstitutesHydrocarbon Management Committee (HMC) are responsible for the production and maintenance of standards andguides cover

16、ing various aspects of static and dynamic measurement of petroleum. API COPM and EI HMC, their sub-committees and work groups consist of technical specialists representing oil companies, equipment manufacturers,service companies, terminal and ship owners and operators. API COPM and EI HMC encourage

17、internationalparticipation and when producing publications their aim is to represent the best consensus of international technicalexpertise and good practice. This is the main reason behind the production of joint publications involving cooperationwith experts from both the API and EI.API/EI standar

18、ds are published as an aid to procurement of standardized equipment and materials and/or as goodpractice procedures. These standards are not intended to inhibit purchasers or producers from purchasing orproducing products made to specifications other than those of API or EI.Shall: As used in a stand

19、ard, “shall” denotes a minimum requirement in order to conform to the specification.Should: As used in a standard, “should” denotes a recommendation or that which is advised but not required in orderto conform to the specification.This publication was produced following API/EI standardization proced

20、ures that ensure appropriate notification andparticipation in the developmental process and is designated as an API/EI standard.Questions concerning the interpretation of the content of this publication or comments and questions concerning theprocedures under which this publication was developed sho

21、uld be directed in writing to the Director of Standards,American Petroleum Institute, 1220 L Street, NW, Washington, DC 20005, USA, or the Technical Department, EnergyInstitute, 61 New Cavendish Street, London, W1G 7AR, UK.Requests for permission to reproduce or translate all or any part of the mate

22、rial published herein should also beaddressed to the Director of Standards (API) or the Technical Department (EI). Generally, API/EI standards arereviewed and revised, reaffirmed, or withdrawn at least every five years. A one-time extension of up to two years maybe added to this review cycle. Status

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24、f EI publications can be found at www.energypublishing.org.Suggested revisions are invited and should be submitted to the Standards Department, API, 1220 L Street, NW,Washington, DC 20005, USA, standardsapi.org or to the Technical Department, Energy Institute, 61 NewCavendish Street, London, W1G 7AR

25、, UK.iiiContentsPage1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Normative References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26、. . . . . . . . . . . . . . . . . . . . . . . . . . 13 Terms, Definitions, Acronyms, and Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.1 Terms and Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

27、. . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.2 Acronyms and Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 General Operating Safety Precautions and Regulatory Requirements . . . . . . . . . .

28、. . . . . . . . . . . . . . . . . . 54.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54.2 Electrical and Operating Safety . . . . . . . . . . . . . . . . . . . . . . . . . . .

29、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54.3 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54.4 Service Conditions . . . . . . . . . . . . . . . . . . . . .

30、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54.5 Compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54.6 Personnel Protection . .

31、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64.7 Letter of Protest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

32、. . 65 Measurement Systems and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

33、. . . . . . . . . . . 65.2 Calibration Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65.3 Verification of Measurement Equipment Between Dry Dockings. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

34、 . . . . 75.4 Independent Inspector Checks of Measurement Equipment During Transfer Operations . . . . . . . . . . . . 75.5 Static Measurement Systems and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85.6 Dynamic Measurement Equipment . .

35、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 Measurement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196.1 General . . . . . . . . . . . .

36、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196.2 Static Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

37、6.3 Dynamic Measurement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277 Cargo Quantity Determination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

38、. 287.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287.2 Shipboard Readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

39、 . . . . . . . . . . . . . . . . . 287.3 Calculation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287.4 Liquefied Petroleum Gas (LPG) and Chemical Gas Calculations . . . . . . . . . . . . . . . . . . .

40、. . . . . . . . . . . . 308 Measurement-related Operational Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

41、. . . . . . . . . . . . . . . . . . . . . 388.2 General Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388.3 Measurement on Board Gas Carriers in an Exposed Environment . . . . . . . . . . . . . . .

42、 . . . . . . . . . . . . . . . 408.4 Vessels Not on Even Keel (Out-of-Trim) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408.5 Static Accumulator Cargoes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

43、 . . . . . . . . . . . . . . . . . . 40Annex A (informative) Barge or Small Vessel Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Annex B (informative) Example Forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

44、. . . . . . . . . . . . . . . 47Annex C (informative) Additional Instructions and Cautionary Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Annex D (informative) Checklists. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

45、. . . . . . . . . . . . 61Annex E (informative) Physical Characteristics and Fire Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

46、. . . . . . . . . . . . . . . 67vContentsPageFigures1 Microwave Type Level Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Float Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

47、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 Typical Pressure-balanced Piston Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 Single Cavity Cylinder with Ullage Tube . . . . . . . . . . . . . . . . . . . . .

48、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 Typical Single Cavity Sample Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176 Typical Vapor Balloon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

49、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177 Typical Vapor Bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 Measurement Process Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299 Overview of Cargo Calculation Process Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31A.1 Rod-type Magnetic Gauging Device . . . . . . . . . . . . . . . . .