Ships and marine technology -- Laboratory test method for skin friction of antifouling paints by rotating drum

This document provides a laboratory test method to determine the skin-friction of antifouling paints coated on drums. The results of the laboratory-tested friction of painted drums over a certain period of time can be used for screening of antifouling paints and characterizing changes in friction for different antifouling paints, amongst other applications and other purposes depending on the user's need. This document is applicable to both biocidal-based and biocide-free antifouling paints.

Titre manque

General Information

Status
Published
Publication Date
10-Jun-2020
Technical Committee
Drafting Committee
Current Stage
5060 - Close of voting Proof returned by Secretariat
Start Date
26-May-2020
Completion Date
26-May-2020
Ref Project

Buy Standard

Standard
ISO 22987:2020 - Ships and marine technology -- Laboratory test method for skin friction of antifouling paints by rotating drum
English language
11 pages
sale 15% off
Preview
sale 15% off
Preview
Draft
ISO/PRF 22987 - Ships and marine technology -- Laboratory test method for skin friction of antifouling paints by rotating drum
English language
11 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

INTERNATIONAL ISO
STANDARD 22987
First edition
2020-06
Ships and marine technology —
Laboratory test method for skin
friction of antifouling paints by
rotating drum
Reference number
ISO 22987:2020(E)
ISO 2020
---------------------- Page: 1 ----------------------
ISO 22987:2020(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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 22987:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Test instrumentation ....................................................................................................................................................................................... 2

4.1 General ........................................................................................................................................................................................................... 2

4.2 Dynamic ageing system ................................................................................................................................................................... 2

4.3 Friction test system ............................................................................................................................................................................. 4

4.4 Motors............................................................................................................................................................................................................. 5

4.5 Testing solution ...................................................................................................................................................................................... 6

4.6 Torque sensor .......................................................................................................................................................................................... 6

5 Drum specification ............................................................................................................................................................................................. 6

5.1 Materials ....................................................................................................................................................................................................... 6

5.2 Dimension ................................................................................................................................................................................................... 6

6 Preparation of the test specimen ........................................................................................................................................................ 6

6.1 Paint sampling ......................................................................................................................................................................................... 6

6.2 Paint application .................................................................................................................................................................................... 6

6.3 Drying and conditioning of test specimen ...................................................................................................................... 6

6.4 Dry film thickness................................................................................................................................................................................. 7

6.5 Sample quantity ..................................................................................................................................................................................... 7

7 Test procedure ........................................................................................................................................................................................................ 7

7.1 Test principle ............................................................................................................................................................................................ 7

7.2 Test procedure ......................................................................................................................................................................................... 7

8 Calculation and expression of results ............................................................................................................................................. 8

8.1 Calculation of torque .......................................................................................................................................................................... 8

8.2 Determination of roughness........................................................................................................................................................ 8

8.3 Calculation of friction reduction rate .................................................................................................................................. 8

9 Precision ....................................................................................................................................................................................................................... 8

10 Test report ................................................................................................................................................................................................................... 9

Annex A (normative) Determination of paint surface roughness by stylus instrument .............................10

© ISO 2020 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 22987:2020(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 8, Ship design.

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
---------------------- Page: 4 ----------------------
ISO 22987:2020(E)
Introduction

Antifouling paints are widely used to prevent fouling of ships’ hulls by marine organisms. Effective

antifouling technologies are critical to minimise the skin friction of the hull and to maintain the fuel

consumption efficiency of ships. The evaluation of antifouling paints is generally undertaken by

adopting a tiered approach whereby paint manufacturers use a battery of laboratory tests, patch tests

and full vessel trials. Patch tests and full vessel trials are generally conducted over extended periods

of time and are predominantly relied upon for the prediction of coating performance when used

commercially.

This document deals with a laboratory test to characterize the skin friction of antifouling paints. It does

not necessarily represent the actual performance of antifouling paints on application to the ship hull.

Therefore, this document does not provide a validated test for predicting the ability of an antifouling

paint to minimize the skin friction of the hull.
© ISO 2020 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 22987:2020(E)
Ships and marine technology — Laboratory test method
for skin friction of antifouling paints by rotating drum
1 Scope

This document provides a laboratory test method to determine the skin-friction of antifouling paints

coated on drums.

The results of the laboratory-tested friction of painted drums over a certain period of time can be

used for screening of antifouling paints and characterizing changes in friction for different antifouling

paints, amongst other applications and other purposes depending on the user’s need.

This document is applicable to both biocidal-based and biocide-free antifouling paints.

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 1513, Paints and varnishes — Examination and preparation of test samples
ISO 2808, Paints and varnishes — Determination of film thickness

ISO 3270, Paints and varnishes and their raw materials — Temperatures and humidities for conditioning

and testing

ISO 4287, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Terms, definitions

and surface texture parameters

ISO 4288, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Rules and

procedures for the assessment of surface texture

ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling

ASTMD1141 Standard practice for the preparation of substitute ocean 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
antifouling paint

underwater paint/coating that is applied as a top layer coating on the hull to control or prevent

attachment of unwanted organisms
3.2
test cycle

complete set of stages of the test process, carried out in a series of specified test sequences (3.9)

© ISO 2020 – All rights reserved 1
---------------------- Page: 6 ----------------------
ISO 22987:2020(E)
3.3
drum
cylindrical object onto which the test paints are applied
3.4
dynamic ageing system

system where tested specimens (3.10) are immersed in a testing solution (3.7) for a certain period of

time for ageing of antifouling paints (3.1) before conducting tests using the friction test system (3.6)

3.5
friction of antifouling paint
skin-friction of an antifouling paint (3.1) against a testing solution (3.7)

Note 1 to entry: In this document, the friction of antifouling paint is represented by torque.

...

INTERNATIONAL ISO
STANDARD 22987
First edition
Ships and marine technology —
Laboratory test method for skin
friction of antifouling paints by
rotating drum
PROOF/ÉPREUVE
Reference number
ISO 22987:2020(E)
ISO 2020
---------------------- Page: 1 ----------------------
ISO 22987:2020(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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii PROOF/ÉPREUVE © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 22987:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Test instrumentation ....................................................................................................................................................................................... 2

4.1 General ........................................................................................................................................................................................................... 2

4.2 Dynamic ageing system ................................................................................................................................................................... 2

4.3 Friction test system ............................................................................................................................................................................. 4

4.4 Motors............................................................................................................................................................................................................. 5

4.5 Testing solution ...................................................................................................................................................................................... 6

4.6 Torque sensor .......................................................................................................................................................................................... 6

5 Drum specification ............................................................................................................................................................................................. 6

5.1 Materials ....................................................................................................................................................................................................... 6

5.2 Dimension ................................................................................................................................................................................................... 6

6 Preparation of the test specimen ........................................................................................................................................................ 6

6.1 Paint sampling ......................................................................................................................................................................................... 6

6.2 Paint application .................................................................................................................................................................................... 6

6.3 Drying and conditioning of test specimen ...................................................................................................................... 6

6.4 Dry film thickness................................................................................................................................................................................. 7

6.5 Sample quantity ..................................................................................................................................................................................... 7

7 Test procedure ........................................................................................................................................................................................................ 7

7.1 Test principle ............................................................................................................................................................................................ 7

7.2 Test procedure ......................................................................................................................................................................................... 7

8 Calculation and expression of results ............................................................................................................................................. 8

8.1 Calculation of torque .......................................................................................................................................................................... 8

8.2 Determination of roughness........................................................................................................................................................ 8

8.3 Calculation of friction reduction rate .................................................................................................................................. 8

9 Precision ....................................................................................................................................................................................................................... 8

10 Test report ................................................................................................................................................................................................................... 9

Annex A (normative) Determination of paint surface roughness by stylus instrument .............................10

© ISO 2020 – All rights reserved PROOF/ÉPREUVE iii
---------------------- Page: 3 ----------------------
ISO 22987:2020(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 8, Ship design.

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 PROOF/ÉPREUVE © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 22987:2020(E)
Introduction

Antifouling paints are widely used to prevent fouling of ships’ hulls by marine organisms. Effective

antifouling technologies are critical to minimise the skin friction of the hull and so maintain the

fuel consumption efficiency of ships. The evaluation of antifouling paints is generally undertaken by

adopting a tiered approach whereby paint manufacturers use a battery of laboratory tests, patch tests

and full vessel trials. Patch tests and full vessel trials are generally conducted over extended periods

of time and are predominantly relied upon for the prediction of coating performance when used

commercially.

This document deals with a laboratory test to characterize the skin friction of antifouling paints. It does

not necessarily represent the actual performance of antifouling paints on application to the ship hull.

Therefore, this document does not provide a validated test for predicting the ability of an antifouling

paint to minimize the skin friction of the hull.
© ISO 2020 – All rights reserved PROOF/ÉPREUVE v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 22987:2020(E)
Ships and marine technology — Laboratory test method
for skin friction of antifouling paints by rotating drum
1 Scope

This document provides a laboratory test method to determine the skin-friction of antifouling paints

coated on drums.

The results of the laboratory-tested friction of painted drums over a certain period of time can be

used for screening of antifouling paints and characterizing changes in friction for different antifouling

paints, amongst other applications and other purposes depending on the user’s need.

This document is applicable to both biocidal-based and biocide-free antifouling paints.

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 1513, Paints and varnishes — Examination and preparation of test samples
ISO 2808, Paints and varnishes — Determination of film thickness

ISO 3270, Paints and varnishes and their raw materials — Temperatures and humidities for conditioning

and testing

ISO 4287, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Terms, definitions

and surface texture parameters

ISO 4288, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Rules and

procedures for the assessment of surface texture

ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling

ASTMD1141 Standard practice for the preparation of substitute ocean 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
antifouling paint

underwater paint/coating that is applied as a top layer coating on the hull to control or prevent

attachment of unwanted organisms
3.2
test cycle

complete set of stages of the test process, carried out in a series of specified test sequences (3.9)

© ISO 2020 – All rights reserved PROOF/ÉPREUVE 1
---------------------- Page: 6 ----------------------
ISO 22987:2020(E)
3.3
drum
cylindrical object onto which the test paints are applied
3.4
dynamic ageing system

system where tested specimens (3.10) are immersed in a testing solution (3.7) for a certain period of

time for ageing of antifouling paints (3.1) before conducting tests using the friction test system (3.6)

3.5
friction of antifouling paint
skin-friction of an antifouling paint (3.1) against a testing solution (3.7)

Note 1 to entry: In this document, the friction of antifouling paint is represented by torque.

3.6
friction test system
system wher
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.