ISO 21072-3:2020

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 21072-3
ISO/TC 8/SC 2
Ships and marine technology —
Secretariat: ANSI
Marine environment protection:
Voting begins on:
2020-06-26 performance testing of oil
skimmers —
Voting terminates on:
2020-08-21
Part 3:
High viscosity oil
Navires et technologie maritime — Protection de l'environnement
marin: essais de performance des écumeurs du pétrole —
Partie 3: Pétrole haute densité
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 21072-3:2020(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
©
NATIONAL REGULATIONS. ISO 2020

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ISO/FDIS 21072-3:2020(E)

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© ISO 2020
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ii © ISO 2020 – All rights reserved

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ISO/FDIS 21072-3:2020(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test facility requirements . 2
4.1 General . 2
4.2 Oil properties. 3
4.3 Air and water temperature . 3
4.4 Oil slick thickness . 3
4.5 Measuring tanks . 3
5 Clearance requirements . 4
6 Test parameters . 4
6.1 General . 4
6.2 Test oil properties . 4
6.3 Oil slick thickness . 4
6.4 Skimmer operating parameters . 5
6.5 Debris interference . 5
6.6 Skimmer movement through slick . 5
7 Test procedures . 6
7.1 Preparations prior to testing . 6
7.2 Actions during testing period . 6
7.3 Actions after testing . 6
8 Performance parameters . 7
8.1 General . 7
8.2 Fluid recovery rate . 7
8.3 Oil recovery testing rate . 7
8.4 Oil recovery efficiency . 7
9 Measurements and reporting . 7
9.1 General . 7
9.2 Oil properties. 7
9.3 Environmental parameters . 8
9.4 Skimmer operating parameters . 8
9.5 Other test parameters . 8
9.6 Recovery parameters . 8
9.7 Performance parameters (calculated parameters) . 8
9.8 Equipment specification and test documentation . 9
10 Quality control . 9
10.1 Test duration and fluid volume . 9
10.2 Repetitions . 9
Bibliography .10
© ISO 2020 – All rights reserved iii

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ISO/FDIS 21072-3:2020(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 8, Ships and marine technology,
Subcommittee SC 2, Marine environmental protection.
This second edition cancels and replaces the first edition (ISO 21072-3:2010), of which it constitutes a
minor revision. The changes compared to the previous edition are as follows:
— the focus of this second edition continues to address testing oil skimmers in high viscosity oil, but
due to the withdrawal of ISO 20172-1:2019, the following from ISO 20172-1:2019 has been added:
the terms and definitions 3.2 through 3.10, and Subclause 4.4, “Oil slick thickness”;
— minor revisions to the key in Figure 1;
— example updated in Table 1.
A list of all parts in the ISO 21072 series can be found on the ISO website.
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.
iv © ISO 2020 – All rights reserved

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ISO/FDIS 21072-3:2020(E)

Introduction
ISO 21072 standardizes performance testing of oil skimmers used in marine pollution control.
Some oil skimmers have previously been performance tested under non-standard conditions and
procedures, with declared performance parameters being of limited value to the end user, especially
under field conditions.
ISO 21072 provides methods for carrying out and recording the results of full-scale tests for a skimmer
under a variety of test conditions.
© ISO 2020 – All rights reserved v

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FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 21072-3:2020(E)
Ships and marine technology — Marine environment
protection: performance testing of oil skimmers —
Part 3:
High viscosity oil
1 Scope
This document specifies a methodology for establishing quantitative performance data for oil skimmers
for recovery of oil with high viscosity (above 50 000 cP), so the end user can objectively judge, compare
and evaluate the design and performance of different skimmers. The methodology applies to testing in
a basin and requires control of oil properties and oil slick characteristics.
The method is applicable to all types of skimmers provided that the equipment dimensions are within
the physical limitations of the test basin. The test procedure provides full-scale test results for the unit
tested, under controlled conditions, and for one or more classes of highly viscous oil. Attention is drawn
to the care required when applying the test results to predict a realistic skimmer performance under
field conditions.
For dedicated/in-built systems, the test procedures outlined in this document are only applicable to the
skimming device as such, not to the entire skimming system.
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 16165, Ships and mar
...