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 Chemical Gases El H.pdf

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

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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

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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 . . . . . . . . . . . . . . . . .