Bunkering of marine fuel using the Coriolis mass flow meter (MFM) system

This document specifies procedures and requirements for the transfer of bunkers to vessels by bunker tankers using the Coriolis mass flow meter (MFM) system. It encompasses the process leading to the approval of the MFM system as installed on bunker tankers and post-approval bunkering operation. It covers terminology, specifications, requirements and procedures on metrology, system integrity, metering system selection and installation, MFM system verification, bunker delivery and dispute handling. NOTE Local and international regulations, such as the International Convention for the Prevention of Pollution from Ships (MARPOL) can apply.

Soutage de fioul marin à l’aide d’un débitmètre massique (MFM) selon le principe de Coriolis

General Information

Status
Published
Publication Date
14-Jan-2021
Current Stage
6060 - International Standard published
Start Date
15-Jan-2021
Due Date
26-Apr-2021
Completion Date
15-Jan-2021
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INTERNATIONAL ISO
STANDARD 22192
First edition
2021-01
Bunkering of marine fuel using the
Coriolis mass flow meter (MFM) system
Soutage de fioul marin à l’aide d’un débitmètre massique (MFM) selon
le principe de Coriolis
Reference number
ISO 22192:2021(E)
©
ISO 2021

---------------------- Page: 1 ----------------------
ISO 22192:2021(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 22192:2021(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General requirements (safety, health and the environment) . 7
5 Metrological requirements . 7
5.1 General . 7
5.2 Mass flow meter requirement. 7
5.3 Mass flow meter system requirements . 8
5.4 Post approval maintenance . 9
5.4.1 Meter zero verification frequency . 9
5.4.2 Zero verification procedure . 9
5.4.3 Meter and ancillary devices verification and/or calibration frequency . 9
5.4.4 Software upgrade/ software update . 9
6 System integrity requirements .10
6.1 General .10
6.2 Metrological control .10
6.2.1 Documentation .10
6.2.2 Type approval and pattern evaluation .10
6.3 Security features .10
6.3.1 Equipment security .10
6.3.2 Software security .10
6.3.3 Data security . .11
6.3.4 Critical alarm .11
6.4 Installation and commissioning .11
6.4.1 Pre-installation and MFM system sealing plan .11
6.4.2 Installation and re-installation .11
6.4.3 Commissioning .11
6.4.4 Re-commissioning .12
6.5 Operational security .12
6.6 Maintenance and control of MFM system .12
6.6.1 Inspection and verification .12
6.6.2 Breaking of seals and re-sealing of MFM system .12
7 Meter selection and installation requirements.12
7.1 General .12
7.2 Site survey onboard tankers.13
7.3 Meter selection .13
7.4 Meter installation.13
7.5 Meter commissioning .14
8 MFM system verification requirements.14
9 Metering procedures .14
9.1 General .14
9.2 Documentation .14
9.2.1 General.14
9.2.2 Pre-delivery documentation .15
9.2.3 Post-delivery documentation .15
9.3 Additional documentation for bunker surveyor .15
9.4 Additional documentation for bunker tanker .16
9.4.1 Meter totalizer log .16
9.4.2 Documents carried onboard the bunker tanker .16
© ISO 2021 – All rights reserved iii

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ISO 22192:2021(E)

9.5 Planning f or bunkering operation .17
9.6 Pre-delivery procedures .17
9.6.1 Flow measurement conditions and checks on system integrity .17
9.6.2 Pre-delivery conference .17
9.6.3 Bunker requisition form (mass flow metering) .17
9.6.4 Mass flow metering system seals checklist .18
9.6.5 Meter reading record form (delivery) .18
9.7 Delivery procedures .19
9.7.1 General.19
9.7.2 Start of delivery .19
9.7.3 End of delivery .20
9.8 Post-delivery procedures and checks .21
9.8.1 Meter reading record form (delivery) .21
9.8.2 Mass flow metering system seals checklist .21
9.8.3 Bunker metering ticket.21
9.8.4 Bunker delivery note .21
9.8.5 Custody transfer quantity .22
9.9 Others .23
9.9.1 MFM system failure .23
9.9.2 Quantity dispute .23
10 Sampling .23
Annex A (informative) Safety, health and the environment .24
Annex B (informative) Uncertainty budget table .28
Annex C (informative) Metrological and system integrity requirements .29
Annex D (informative) Procedures for zero verification .30
Annex E (informative) Sealable bolts and nuts for blanks and ancillary device .31
Annex F (informative) Request for information checklist .33
Annex G (informative) Typical schematic diagram for MFM system (for delivery) .35
Annex H (normative) Example of bunker requisition form (mass flow metering) .36
Annex I (informative) Example of mass flow metering system seals checklist .37
Annex J (informative) Example of meter reading record form (delivery) .38
Annex K (informative) Example of bunker metering ticket .39
Annex L (informative) Bunkering pre-delivery safety checklist.40
Annex M (informative) Example of survey time log .43
Annex N (informative) Example of statement of fact .44
Annex O (informative) Example of meter totalizer log .45
Annex P (informative) Example of letter of protest .47
Annex Q (informative) Quantity dispute procedures and documents .48
Bibliography .49
iv © ISO 2021 – All rights reserved

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ISO 22192:2021(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 28, Petroleum and related products, fuels
and lubricants from natural or synthetic sources, Subcommittee SC 2, Measurement of petroleum and
related products.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
© ISO 2021 – All rights reserved v

---------------------- Page: 5 ----------------------
ISO 22192:2021(E)

Introduction
This document was developed for the benefit of the bunker industry comprising ship owners, operators,
charterers, bunker suppliers, bunker craft operators and bunker surveyors and is intended to enhance
the efficiency of bunkering operations and promote best practices in the measurement of bunker fuel
delivered.
This document sets out the international best practices which documents principles, requirements and
procedures in the application of mass flow metering to bunkering.
This document does not alter the contractual obligations of the parties involved in the bunker delivery.
Figure 1 shows the application of MFM bunkering requirements for bunker custody transfer.
Figure 1 — Application of MFM bunkering requirements
vi © ISO 2021 – All rights reserved

---------------------- Page: 6 ----------------------
INTERNATIONAL STANDARD ISO 22192:2021(E)
Bunkering of marine fuel using the Coriolis mass flow
meter (MFM) system
1 Scope
This document specifies procedures and requirements for the transfer of bunkers to vessels by bunker
tankers using the Coriolis mass flow meter (MFM) system. It encompasses the process leading to the
approval of the MFM system as installed on bunker tankers and post-approval bunkering operation.
It covers terminology, specifications, requirements and procedures on metrology, system integrity,
metering system selection and installation, MFM system verification, bunker delivery and dispute
handling.
NOTE Local and international regulations, such as the International Convention for the Prevention of
Pollution from Ships (MARPOL) can apply.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO/IEC Guide 98-3, Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in
measurement (GUM: 1995)
ISO 13739, Petroleum products — Procedures for the transfer of bunkers to vessels
ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories
International Recommendation OIML R117-1, Dynamic measuring systems for liquids other than water
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
accuracy of measurement
closeness of the agreement between the result of a measurement and the conventional, true value of the
measurement
Note 1 to entry: Good accuracy implies small random and systematic errors.
Note 2 to entry: The quantitative expression of accuracy should be in terms of uncertainty of measurement.
3.2
adjustment
set of operations carried out on a measuring system to provide prescribed indications corresponding to
given values of quantity to be measured
Note 1 to entry: Types of adjustment of a measuring system include zero adjustment of a measuring system,
offset adjustment and span adjustment (sometimes called gain adjustment).
© ISO 2021 – All rights reserved 1

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ISO 22192:2021(E)

Note 2 to entry: Adjustment of a measuring system should not be confused with calibration, which is a
prerequisite for adjustment.
Note 3 to entry: After an adjustment of a measuring system, the measuring system shall be recalibrated.
[SOURCE: JCGM 200]
3.3
air buoyancy correction
correction applied to obtain the conventional mass from true mass to take into account the reduction in
true mass due to the buoyancy effect of air
3.4
ancillary device
device intended to perform a particular function, directly involved in elaborating, transmitting or
displaying measurement results
EXAMPLE Zero adjustment device, repeating indicating device, printing device, memory device, totalising
indicating device, correction device, conversion device, pre-setting device, self-service device.
3.5
bunker(s)
fuel supplied to a vessel (3.47) for its propulsion and/or operation
Note 1 to entry: Fuel with reference to Class F of ISO 8217.
3.6
bunker delivery note
BDN
proprietary document of the bunker supplier (3.9) providing details of the quality and quantity of the
bunker(s) (3.5) delivered by the bunker tanker (3.11) to the vessel (3.47)
3.7
bunker metering ticket
BMT
ticket printed at the end of a bunkering operation (3.8)
3.8
bunkering operation
bunker delivery from bunker tanker (3.11) to vessel (3.47)
3.9
bunker supplier
company which contractually agrees with the buyer to deliver the product
3.10
bunker surveyor
person who inspects, measures, samples, investigates and reports as required on the bunkering
operations
3.11
bunker tanker
bunker tanker supplying bunker(s) to the vessel (3.47)
3.12
bunker tanker operator
company which operates the bunker tanker (3.11)
3.13
bunker tanker representative
individual who represents the bunker supplier (3.9) and is responsible for bunkering operations (3.8)
and documentations
2 © ISO 2021 – All rights reserved

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ISO 22192:2021(E)

3.14
calibration
operation that, under specified conditions, in a first step, establishes a relation between the quantity
values with measurement uncertainties provided by measurement standards and corresponding
indications with associated measurement uncertainties and, in a second step, uses this information to
establish a relation for obtaining a measurement result from an indication
[SOURCE: JCGM 200]
3.15
calibration factor
numerical factor unique to each sensor derived during sensor calibration (3.14), which when
programmed into the transmitter (3.44) ensures that the meter performs to its stated specification
[SOURCE: ISO 10790:2015,3.1.10, modified — the term has been changed from "calibrating factor" to
"calibration factor" and Note 1 to entry has been merged in the definition.]
3.16
chief engineer
engineer of the vessel (3.47) who is responsible for receiving bunkers and documentation of the
bunkering operation (3.8)
3.17
commissioning
process whereby the critical precision parameters impacting custody transfer are verified and checked
Note 1 to entry: Any setting changes during commissioning or re-commissioning is traceable to factory settings
and justified adjustments (3.2) to meet the measurement uncertainty (3.30) or type classification.
3.18
conformity body
independent party or party accredited by national body that undertake conformity assessment
activities such as verification, testing, inspection and certification
3.19
conventional mass
mass value of a body equal to the mass (3.24) of a standard that balances this body under conventionally
chosen conditions
Note 1 to entry: The unit of a conventional mass is the kilogram. It is also known as mass in air.
[SOURCE: OIML D028]
3.20
custody transfer point
point at which, the bunker (3.5) is defined as being delivered or loaded
3.21
initial zero adjustment
setting of the indication of mass flow rate (3.27) to zero with the flowrate completely stopped and to
fully filled flow meter according to approved procedure, before it is ready for custody transfer usage
3.22
linearity of MFM
linearity of mass flow meter
consistency of change in the scaled output of a Coriolis flow meter, for a related, scaled change in the
input of the flow meter
[SOURCE: ASME MFC-11]
© ISO 2021 – All rights reserved 3

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ISO 22192:2021(E)

3.23
low flow cut-off
transmitter (3.44) setting which sets the meter output(s) to zero flow if the flow rate falls below a
preset value
Note 1 to entry: This setting inhibits the registration of flow when the flow meter is not properly filled with
subject fluid that can lead to large measurement errors.
3.24
mass
physical quantity which can be ascribed to any material object and which gives a measure of its quantity
of matter
Note 1 to entry: Also known as true mass.
[SOURCE: OIML D028, modified — Note 1 to entry has been added.]
3.25
mass flow meter
MFM
device consisting of a flow sensor (primary device) and a transmitter (3.44) (secondary device)
which primarily measures the mass flow by means of the interaction between a flowing fluid and
the oscillation of a tube or tubes; it may also provide measurements of the density and the process
temperature of the fluid
3.26
mass flow meter system
MFM system
system that comprises the mass flow meter (3.25), its ancillary devices (3.4), pipelines and sealing points
between the pump suction and the custody transfer point (3.20)
3.27
mass flow rate
flow rate at which the quantity of fluid which passes the MFM (3.25) is expressed as mass and
denoted in MT/h
3.28
master
person in charge of the bunker tanker (3.11) or the vessel receiving bunker(s) as the case can be
3.29
maximum mass flow rate
Q
max
maximum flow rate, up to which, the MFM system (3.26) has been qualified to operate in compliance
with the required accuracy (3.1)Note 1 to entry: The maximum value is normally determined by the
application
3.30
measurement uncertainty
non-negative parameter characterizing the dispersion of the quantity values being attributed to a
measurand, based on the information used
[SOURCE: JCGM 200]
3.31
meter reading
value obtained from the non-resettable totalizer(s) (3.37)
4 © ISO 2021 – All rights reserved

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ISO 22192:2021(E)

3.32
meter stability
property of a measuring instrument, whereby, its metrological properties remain constant over time
Note 1 to entry: Stability may be quantified in several ways:
— in terms of the duration of a time interval over which a metrological property changes by a stated amount;
— in terms of the change of a property over a stated time.
[SOURCE: JCGM 200]
3.33
metering
measurement of quantity by the MFM system (3.26)
3.34
metering profile
graphical overview of the process parameters recorded during a bunkering operation (3.8) and retained
for purpose of providing transparent assessment
3.35
minimum mass flow rate
Q
min
lowest flow rate required to which the metering system has been qualified to operate, in compliance
w
...

INTERNATIONAL ISO
STANDARD 22192
First edition
Bunkering of marine fuel using the
Coriolis mass flow meter (MFM) system
PROOF/ÉPREUVE
Reference number
ISO 22192:2020(E)
©
ISO 2020

---------------------- Page: 1 ----------------------
ISO 22192:2020(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii PROOF/ÉPREUVE © ISO 2020 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 22192:2020(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General requirements (safety, health and the environment) . 7
5 Metrological requirements . 7
5.1 General . 7
5.2 Mass flow meter requirement. 7
5.3 Mass flow meter system requirements . 8
5.4 Post approval maintenance . 9
5.4.1 Meter zero verification frequency . 9
5.4.2 Zero verification procedure . 9
5.4.3 Meter and ancillary devices verification and/or calibration frequency . 9
5.4.4 Software upgrade/ software update . 9
6 System integrity requirements .10
6.1 General .10
6.2 Metrological control .10
6.2.1 Documentation .10
6.2.2 Type approval and pattern evaluation .10
6.3 Security features .10
6.3.1 Equipment security .10
6.3.2 Software security .10
6.3.3 Data security . .11
6.3.4 Critical alarm .11
6.4 Installation and commissioning .11
6.4.1 Pre-installation and MFM system sealing plan .11
6.4.2 Installation and re-installation .11
6.4.3 Commissioning .11
6.4.4 Re-commissioning .12
6.5 Operational security .12
6.6 Maintenance and control of MFM system .12
6.6.1 Inspection and verification .12
6.6.2 Breaking of seals and re-sealing of MFM system .12
7 Meter selection and installation requirements.12
7.1 General .12
7.2 Site survey onboard tankers.13
7.3 Meter selection .13
7.4 Meter installation.13
7.5 Meter commissioning .14
8 MFM system verification requirements.14
9 Metering procedures .14
9.1 General .14
9.2 Documentation .14
9.2.1 General.14
9.2.2 Pre-delivery documentation .15
9.2.3 Post-delivery documentation .15
9.3 Additional documentation for bunker surveyor .15
9.4 Additional documentation for bunker tanker .16
9.4.1 Meter totalizer log .16
9.4.2 Documents carried onboard the bunker tanker .16
© ISO 2020 – All rights reserved PROOF/ÉPREUVE iii

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ISO 22192:2020(E)

9.5 Planning f or bunkering operation .17
9.6 Pre-delivery procedures .17
9.6.1 Flow measurement conditions and checks on system integrity .17
9.6.2 Pre-delivery conference .17
9.6.3 Bunker requisition form (mass flow metering) .17
9.6.4 Mass flow metering system seals checklist .18
9.6.5 Meter reading record form (delivery) .18
9.7 Delivery procedures .19
9.7.1 General.19
9.7.2 Start of delivery .19
9.7.3 End of delivery .20
9.8 Post-delivery procedures and checks .21
9.8.1 Meter reading record form (delivery) .21
9.8.2 Mass flow metering system seals checklist .21
9.8.3 Bunker metering ticket.21
9.8.4 Bunker delivery note .21
9.8.5 Custody transfer quantity .22
9.9 Others .23
9.9.1 MFM system failure .23
9.9.2 Quantity dispute .23
10 Sampling .23
Annex A (informative) Safety, health and the environment .24
Annex B (informative) Uncertainty budget table .28
Annex C (informative) Metrological and system integrity requirements .29
Annex D (informative) Procedures for zero verification .30
Annex E (informative) Sealable bolts and nuts for blanks and ancillary device .31
Annex F (informative) Request for information checklist .33
Annex G (informative) Typical schematic diagram for MFM system (for delivery) .35
Annex H (normative) Example of bunker requisition form (mass flow metering) .36
Annex I (informative) Example of mass flow metering system seals checklist .37
Annex J (informative) Example of meter reading record form (delivery) .38
Annex K (informative) Example of bunker metering ticket .39
Annex L (informative) Bunkering pre-delivery safety checklist.41
Annex M (informative) Example of a survey time log .44
Annex N (informative) Example of statement of fact .46
Annex O (informative) Example of meter totalizer log .47
Annex P (informative) Examples of letter of protest .49
Annex Q (informative) Quantity dispute procedures and documents .50
Bibliography .51
iv PROOF/ÉPREUVE © ISO 2020 – All rights reserved

---------------------- Page: 4 ----------------------
ISO 22192:2020(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 28, Petroleum and related products, fuels
and lubricants from natural or synthetic sources, Subcommittee SC 2, Measurement of petroleum and
related products.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
© ISO 2020 – All rights reserved PROOF/ÉPREUVE v

---------------------- Page: 5 ----------------------
ISO 22192:2020(E)

Introduction
This document was developed for the benefit of the bunker industry comprising ship owners, operators,
charterers, bunker suppliers, bunker craft operators and bunker surveyors and is intended to enhance
the efficiency of bunkering operations and promote best practices in the measurement of bunker fuel
delivered.
This document sets out the international best practices which documents principles, requirements and
procedures in the application of mass flow metering to bunkering.
This document does not alter the contractual obligations of the parties involved in the bunker delivery.
Figure 1 shows the application of MFM bunkering requirements for bunker custody transfer.
Figure 1 — Application of MFM bunkering requirements
vi PROOF/ÉPREUVE © ISO 2020 – All rights reserved

---------------------- Page: 6 ----------------------
INTERNATIONAL STANDARD ISO 22192:2020(E)
Bunkering of marine fuel using the Coriolis mass flow
meter (MFM) system
1 Scope
This document specifies procedures and requirements for the transfer of bunkers to vessels by bunker
tankers using the Coriolis mass flow meter (MFM) system. It encompasses the process leading to the
approval of the MFM system as installed on bunker tankers and post-approval bunkering operation.
It covers terminology, specifications, requirements and procedures on metrology, system integrity,
metering system selection and installation, acceptance test, bunker delivery and dispute handling.
NOTE Local and international regulations, such as the International Convention for the Prevention of
Pollution from Ships (MARPOL) can apply.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO/IEC 98-3, Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement
(GUM: 1995)
ISO 13739, Petroleum products — Procedures for the transfer of bunkers to vessels
ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories
International Recommendation OIML R117 1, Dynamic measuring systems for liquids other than water
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
accuracy of measurement
closeness of the agreement between the result of a measurement and the conventional, true value of the
measurement
Note 1 to entry: Good accuracy implies small random and systematic errors.
Note 2 to entry: The quantitative expression of accuracy should be in terms of uncertainty of measurement.
3.2
adjustment
set of operations carried out on a measuring system to provide prescribed indications corresponding to
given values of quantity to be measured
Note 1 to entry: Types of adjustment of a measuring system include zero adjustment of a measuring system,
offset adjustment and span adjustment (sometimes called gain adjustment).
© ISO 2020 – All rights reserved PROOF/ÉPREUVE 1

---------------------- Page: 7 ----------------------
ISO 22192:2020(E)

Note 2 to entry: Adjustment of a measuring system should not be confused with calibration, which is a
prerequisite for adjustment.
Note 3 to entry: After an adjustment of a measuring system, the measuring system shall be recalibrated.
[SOURCE: JCGM 200]
3.3
air buoyancy correction
correction applied to obtain the conventional mass from true mass to take into account the reduction in
true mass due to the buoyancy effect of air
3.4
ancillary device
device intended to perform a particular function, directly involved in elaborating, transmitting or
displaying measurement results
EXAMPLE Zero adjustment device, repeating indicating device, printing device, memory device, totalising
indicating device, correction device, conversion device, pre-setting device, self-service device.
3.5
bunker(s)
fuel supplied to a vessel (3.47) for its propulsion and/or operation
Note 1 to entry: Fuel with reference to Class F of ISO 8217.
3.6
bunker delivery note
BDN
proprietary document of the bunker supplier (3.9) providing details of the quality and quantity of the
bunker(s) (3.5) delivered by the bunker tanker (3.11) to the vessel (3.47)
3.7
bunker metering ticket
BMT
ticket printed at the end of a bunkering operation (3.8)
3.8
bunkering operation
bunker delivery from bunker tanker (3.11) to vessel (3.47)
3.9
bunker supplier
company which contractually agrees with the buyer to deliver the product
3.10
bunker surveyor
person who inspects, measures, samples, investigates and reports as required on the bunkering
operations
3.11
bunker tanker
bunker tanker supplying bunker(s) to the vessel (3.47)
3.12
bunker tanker operator
company which operates the bunker tanker (3.11)
3.13
bunker tanker representative
individual who represents the bunker supplier (3.9) and is responsible for bunkering operations (3.8)
and documentations
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ISO 22192:2020(E)

3.14
calibration
operation that, under specified conditions, in a first step, establishes a relation between the quantity
values with measurement uncertainties provided by measurement standards and corresponding
indications with associated measurement uncertainties and, in a second step, uses this information to
establish a relation for obtaining a measurement result from an indication
[SOURCE: JCGM 200]
3.15
calibration factor
numerical factor unique to each sensor derived during sensor calibration (3.14), which when
programmed into the transmitter (3.44) ensures that the meter performs to its stated specification
[SOURCE: ISO 10790:2015,3.1.10, modified — the term has been changed from "calibrating factor" to
"calibration factor" and Note 1 to entry has been merged in the definition.]
3.16
chief engineer
engineer of the vessel (3.47) who is responsible for receiving bunkers and documentation of the
bunkering operation (3.8)
3.17
commissioning
process whereby the critical precision parameters impacting custody transfer are verified and checked
Note 1 to entry: Any setting changes during commissioning or re-commissioning is traceable to factory settings
and justified adjustments (3.2) to meet the measurement uncertainty (3.30) or type classification.
3.18
conformity body
independent party or party accredited by national body that undertake conformity assessment
activities such as verification, testing, inspection and certification
3.19
conventional mass
mass value of a body equal to the mass (3.24) of a standard that balances this body under conventionally
chosen conditions
Note 1 to entry: The unit of a conventional mass is the kilogram. It is also known as mass in air.
[SOURCE: OIML D028]
3.20
custody transfer point
point at which, the bunker (3.5) is defined as being delivered or loaded
3.21
initial zero adjustment
setting of the indication of mass flow rate (3.27) to zero with the flowrate completely stopped and to
fully filled flow meter according to approved procedure, before it is ready for custody transfer usage
3.22
linearity of MFM
linearity of mass flow meter
consistency of change in the scaled output of a Coriolis flow meter, for a related, scaled change in the
input of the flow meter
[SOURCE: ASME MFC-11]
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ISO 22192:2020(E)

3.23
low flow cut-off
transmitter (3.44) setting which sets the meter output(s) to zero flow if the flow rate falls below a
preset value
Note 1 to entry: This setting inhibits the registration of flow when the flow meter is not properly filled with
subject fluid that can lead to large measurement errors.
3.24
mass
physical quantity which can be ascribed to any material object and which gives a measure of its quantity
of matter
Note 1 to entry: Also known as true mass.
[SOURCE: OIML D028, modified — Note 1 to entry has been added.]
3.25
mass flow meter
MFM
device consisting of a flow sensor (primary device) and a transmitter (3.44) (secondary device)
which primarily measures the mass flow by means of the interaction between a flowing fluid and
the oscillation of a tube or tubes; it may also provide measurements of the density and the process
temperature of the fluid
3.26
mass flow meter system
MFM system
system that comprises the mass flow meter (3.25), its ancillary devices (3.4), pipelines and sealing points
between the pump suction and the custody transfer point (3.20)
3.27
mass flow rate
flow rate at which the quantity of fluid which passes the MFM (3.25) is expressed as mass and
denoted in MT/h
3.28
master
person in charge of the bunker tanker (3.11) or the vessel receiving bunker(s) as the case can be
3.29
maximum mass flow rate
Q
max
maximum flow rate, up to which, the MFM system (3.26) has been qualified to operate in compliance
with the required accuracy (3.1)Note 1 to entry: The maximum value is normally determined by the
application
3.30
measurement uncertainty
non-negative parameter characterizing the dispersion of the quantity values being attributed to a
measurand, based on the information used
[SOURCE: JCGM 200]
3.31
meter reading
value obtained from the non-resettable totalizer(s) (3.37)
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ISO 22192:2020(E)

3.32
meter stability
property of a measuring instrument, whereby, its metrological properties remain constant over time
Note 1 to entry: Stability may be quantified in several ways:
— in terms of the duration of a time interval over which a metrological property changes by a stated amount;
— in terms of the change of a property over a stated time.
[SOURCE: JCGM 200]
3.33
metering
measurement of quantity by the MFM system (3.26)
3.34
metering profile
graphical overview of the process parameters recorded during a bunkering operation (3.8) and retained
for purpose of providing transparent assessment
3.35
minimum mass flow rate
Q
min
lowest flow rate required to which the metering system has been qualified to operate, in comp
...

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