API MPMS 17.12-2015 Procedures for bulk liquid chemical cargo inspections (SECOND EDITION).pdf

《API MPMS 17.12-2015 Procedures for bulk liquid chemical cargo inspections (SECOND EDITION).pdf》由会员分享，可在线阅读，更多相关《API MPMS 17.12-2015 Procedures for bulk liquid chemical cargo inspections (SECOND EDITION).pdf（64页珍藏版）》请在麦多课文档分享上搜索。

1、API Manual of Petroleum Measurement Standards Chapter 17.12EI Hydrocarbon Management HM 51Procedures for bulk liquid chemical cargo inspections2nd edition, August 2015Published byENERGY INSTITUTE, LONDONThe Energy Institute is a professional membership body incorporated by Royal Charter 2003Register

2、ed charity number 1097899API MPMS CHAPTER 17.12/EI HM 51 PROCEDURES FOR BULK LIQUID CHEMICAL CARGO INSPECTIONS2nd editionAugust 2015ISBN 978 0 85293 737 2API MPMS CHAPTER 17.12/EI HM 51: PROCEDURES FOR BULK LIQUID CHEMICAL CARGO INSPECTIONS3CONTENTSPageSpecial notes and disclaimers 6Foreword 81 Scop

3、e 91.1 General .91.2 Measurement stages .91.3 Quality control.101.4 Summary of data to be reported .102 Normative references 112.1 General 112.2 API/EI documents.112.3 EI documents112.4 API documents 112.5 API/ASTM documents .122.6 American Society for Testing and Materials (ASTM) .122.7 Other docum

4、ents 123 Terms and definitions 133.1 Accuracy .133.2 Ballast .133.3 Capacity table, tank.133.4 Critical zone 133.5 Density 133.6 Density, relative 133.7 Dip .143.8 Displacer (tank gauging) .143.9 Floating cover .143.10 Floating roof tank 143.11 Gauging .143.12 Inert gas .143.13 Inhibitors.143.14 Lis

5、t .143.15 Mass 153.16 Measurement .153.17 Meter factor 153.18 On board quantity (OBQ).153.19 Outturn153.20 Reference gauge height153.21 Representative sample.153.22 Restricted gauging153.23 Sampling.163.24 Slops 163.25 Spot sample 163.26 Stripping .163.27 Tape 163.28 Trim.163.29 Trim correction 16AP

6、I MPMS CHAPTER 17.12/EI HM 51: PROCEDURES FOR BULK LIQUID CHEMICAL CARGO INSPECTIONS4Contents continued Page3.30 Ullage .163.31 Ullage gauge173.32 Vapour 173.33 Vessel experience factor (VEF, VEFL, VEFD) 173.34 Volume correction factor (VCF) 173.35 Volume, gross observed (GOV) 173.36 Volume, gross s

7、tandard (GSV) .173.37 Volume, net standard (NSV).173.38 Volume, total calculated (TCV).173.39 Water, free .183.40 Water cut (static measurement) 183.41 Wedge formula 184 General principles 194.1 The purpose of a cargo inspection194.2 General responsibilities 194.2.1 Communications, capabilities and

8、performance 194.2.2 Equipment 204.2.3 Letters of protest/notices of apparent discrepancy 204.2.4 Reporting.214.3 Potential measurement error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 Safety recommendations 225.1 General 225.2 Safety aspects of equipment

9、225.3 Safety at sampling points.235.4 Static electricity 235.5 Health hazards 245.6 Entry into confined spaces245.7 Personnel transfer offshore .256 Operation planning (loading and discharge) 276.1 Key meeting 276.2 Information to be determined before an operation commences277 Inspection, sampling a

10、nd quality control procedures 307.1 Load procedures .307.1.1 Shore tanks .307.1.2 Dynamic measurement (metering) See Annex B.327.1.3 Sampling .337.1.4 Manual sampling of shore tanks347.1.5 Automatic sampling .347.1.6 Pipelines357.1.7 Vessel procedures before loading .367.1.8 Vessel procedures at sta

11、rt of loading 407.1.9 Vessel procedures after loading 417.1.10 Calculations .427.1.11 Vessel experience factor 427.1.12 Reconciliation of measured qualities.42API MPMS CHAPTER 17.12/EI HM 51: PROCEDURES FOR BULK LIQUID CHEMICAL CARGO INSPECTIONS5Contents continued Page7.2 Discharge procedures 427.2.

12、1 Vessel measurements before discharge.427.2.2 In-transit difference .437.2.3 Sampling .437.2.4 Tank stripping operations/ROB .437.2.5 Shore tank gauging and sampling 447.2.6 Reconciliation of measured quantities448 Calculation of quantities 458.1 General 458.2 Calculation methods 458.3 Examples of

13、shore tank and marine tank calculations468.3.1 Weight calculations .469 Final report 479.1 Inspection data 47AnnexesAnnex A Guidelines for verifying the accuracy of manual gauging equipment 49A.1 Introduction .49A.2 Liquid-in-glass thermometers 49A.2.1 Laboratory inspection 49A.2.2 Field inspection.

14、49A.3 Portable electronic gauging devices (PEGDs) 49A.4 Manual gauging tapes .49A.5 Density determination .50A.5.1 Hydrometers.50A.5.2 Densitometers50Annex B Monitoring metering system performance at loading 51B.1 Introduction .51B.2 Description of meter loading measurement systems .51B.2.1 Meter fa

15、ctor .51B.3 Monitoring procedures.53Annex C Wedge formula calculation 55C.1 Calculation of the trim factor 55C.2 Calculation of the length of the wedge 55C.3 Calculation of DA.56C.4 Wedge formula based on the tank width .57C.5 Wedge formula based on theoretical tank width .58Annex D Offshore operati

16、ons 58D.1 General 60D.2 Safety Personnel transfers .60D.3 Inspection 60D.4 Reconciliation of figures 60D.5 Reporting and final report 61Annex E Wall wash guidelines 62API MPMS CHAPTER 17.12/EI HM 51: PROCEDURES FOR BULK LIQUID CHEMICAL CARGO INSPECTIONS6SPECIAL NOTES AND DISCLAIMERSAPI and EI public

17、ations are recommended for general adoption but should be read and interpreted in conjunction with Weights and Measures, Safety, Customs and Excise and other regulations in force in the country in which they are to be applied With respect to particular circumstances, local, state, and federal laws a

18、nd regulations should be reviewed 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 Where applicable, authorities having jurisdiction should be consulted T

19、he information contained in this publication is provided as guidance only. Neither API and EI nor any of API/EIs employees, subcontractors, consultants, committees, or other assignees make any warranty or representation, either express or implied, with respect to the accuracy, completeness, or usefu

20、lness of the information contained herein, or assume any liability or responsibility for any use, or the results of such use, of any information or process disclosed in this publication. Neither API and EI nor any of API/EIs employees, subcontractors, consultants, or other assignees represent that u

21、se of this publication would not infringe upon privately owned rights.Users of this publication should not 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. Work s

22、ites and equipment operations may differ. Users are solely responsible for assessing their specific situation in determining the appropriateness of applying the information.Information concerning safety and health risks and proper precautions with respect to particular materials and conditions shoul

23、d be obtained from the employer, the manufacturer or supplier of that material, or the applicable safety data sheet.Classified areas may vary depending on the location, conditions, equipment, and substances involved in any given situation. Users of this Standard should consult with the appropriate a

24、uthorities having jurisdiction.API/EI joint publications may be used by anyone desiring to do so. Every effort has been made by the Institutes to assure the accuracy and reliability of the data contained in them; however, the Institutes make no representation, warranty, or guarantee in connection wi

25、th this publication and hereby expressly disclaim any liability or responsibility for loss or damage resulting from its use or for the violation of any authorities having jurisdiction with which this publication may conflict.API/EI joint publications are published to facilitate the broad availabilit

26、y 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 publications should be utilised. The development and publication of API/EI joint publications is not intended in any

27、way to inhibit anyone from using any other practices.Nothing contained in any API/EI joint publication is to be construed as granting any right, by implication or otherwise, for the manufacture, sale, or use of any method, apparatus, or product covered by letters patent. Neither should anything cont

28、ained in the publication be construed as insuring anyone against liability for infringement of letters patent.API/EI are not undertaking to meet the duties of employers, manufacturers, or suppliers to warn and properly train and equip their employees, and others exposed, concerning health and safety

29、 risks and precautions, nor undertaking their obligations to comply with authorities having jurisdiction.API MPMS CHAPTER 17.12/EI HM 51: PROCEDURES FOR BULK LIQUID CHEMICAL CARGO INSPECTIONS7The above disclaimer is not intended to restrict or exclude liability for death or personal injury caused by

30、 own negligence.The Energy Institute is a professional membership body incorporated by Royal Charter 2003.Registered charity number 1097899, EnglandCopyright 2015 by API, Washington DC and Energy Institute, London:All rights reserved.No part of this work may be reproduced, stored in a retrieval syst

31、em, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission from the publisher.API MPMS CHAPTER 17.12/EI HM 51: PROCEDURES FOR BULK LIQUID CHEMICAL CARGO INSPECTIONS8FOREWORDThis publication was prepared jointly by the American Pet

32、roleum Institute Committee on Petroleum Measurement and the Energy Institute Hydrocarbon Management Committee.The American Petroleum Institute Committee on Petroleum Measurement (COPM) and the Energy Institutes Hydrocarbon Management Committee (HMC) are responsible for the production and maintenance

33、 of standards and guides covering various aspects of static and dynamic measurement of petroleum. API COPM and EI HMC, their subcommittees and work groups consist of technical specialists representing oil companies, equipment manufacturers, service companies, terminal and ship owners and operators.

34、API COPM and EI HMC encourage international participation and when producing publications their aim is to represent the best consensus of international technical expertise and good practice. This is the main reason behind the production of joint publications involving cooperation with experts from b

35、oth the API and EI.API/EI standards are published as an aid to procurement of standardized equipment and materials and/or as good practice procedures. These standards are not intended to inhibit purchasers or producers from purchasing or producing products made to specifications other than those of

36、API or EI.Shall: As used in a standard, “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 order to conform to the specification.This publication was produced fol

37、lowing API/EI standardization procedures that ensure appropriate notification and participation 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 the procedures under wh

38、ich this publication was developed should be directed in writing to the Director of Standards, American Petroleum Institute, 1220 L Street, NW, Washington, DC 20005, USA, or the Technical Department, Energy Institute, 61 New Cavendish Street, London, W1G 7AR, UK.Requests for permission to reproduce

39、or translate all or any part of the material published herein should also be addressed to the Director of Standards (API) or the Technical Department (EI). Generally, API/EI standards are reviewed and revised, reaffirmed, or withdrawn at least every five years. A one-time extension of up to two year

40、s may be added to this review cycle. Status of the publication can be ascertained from the API Standards Department, 1220 L Street, NW, Washington, DC 20005, USA, or the EI Technical Department, Energy Institute, 61 New Cavendish Street, London, W1G 7AR, UK.A catalogue of API publications can be fou

41、nd at www.api.org/publications.A catalogue of EI publications can be found at https:/publishing.energyinst.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, Ener

42、gy Institute, 61 New Cavendish Street, London, W1G 7AR, UK.API MPMS CHAPTER 17.12/EI HM 51: PROCEDURES FOR BULK LIQUID CHEMICAL CARGO INSPECTIONS91 SCOPE1 1 GENERALThis document provides cargo measurement procedures for use primarily by inspectors and specifies procedures directed at minimising carg

43、o contamination and losses. In the absence of, or in conjunction with, specific instructions from principal(s), this document should be considered a summary of good practice used within the industry.Where the term measurement is used in a general sense, it should be taken to include all aspects of c

44、argo inspection including (but not limited to) tank inspection, sampling, laboratory analysis and testing and other superintending activities, as required by the inspectors principals.The points at which inspectors are required to make their measurements are described and definitions of the terms us

45、ed throughout this document are provided in section 3. Where possible terms approved by API, EI and ISO/TC28 have been adopted.The document also considers the purpose of a cargo survey and summarises the responsibilities of those involved. These procedures may become contractual if reference to them

46、 is made in either a nomination or acknowledgement.Safety matters and related responsibilities are defined and emphasis is placed on the need for inspectors to be continually conscious that safety requirements take precedence over all other considerations.The document describes the procedures which

47、inspectors should follow and provides references to analytical test methods and calculations. Reference is made to alternative methods since it is recognised that opinions may vary regarding the use of test methods, and that different methods may be specified by the parties involved.1 2 MEASUREMENT

48、STAGESWhen a cargo is transported by vessel from one shore terminal to another, measurements are normally made at four locations, as shown in Figure 1 for the purpose of establishing:(a) the quantity of cargo delivered (i.e. to confirm the quantity of cargo shown on the Bill of Lading);(b) the quantity of cargo loaded by the vessel;(c) the quantity of cargo discharged by the vessel;(d) the quantity of cargo received by the receiving terminal, and(e) the d