Paints and varnishes - Pendulum damping test (ISO/FDIS 1522:2022)

ISO 1522:2006 specifies two methods of carrying out a pendulum damping test on a coating of paint, varnish or other, related, product. It is applicable to single coatings and to multicoat systems.

Beschichtungsstoffe – Pendeldämpfungsprüfung (ISO/FDIS 1522:2022)

Peintures et vernis - Essai d'amortissement du pendule (ISO/FDIS 1522:2022)

L'ISO 1522:2006 spécifie deux méthodes pour effectuer l'essai d'amortissement du pendule sur un revêtement de peinture, de vernis ou d'un produit assimilé. Elle s'applique aux revêtements monocouche et aux revêtements multicouche.

Barve in laki - Preskus trdote z dušenjem nihanja (ISO/FDIS 1522:2022)

General Information

Status
Not Published
Public Enquiry End Date
02-Apr-2022
Technical Committee
Current Stage
5020 - Formal vote (FV) (Adopted Project)
Start Date
01-Sep-2022
Due Date
20-Oct-2022
Completion Date
26-Sep-2022

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SLOVENSKI STANDARD
oSIST prEN ISO 1522:2022
01-marec-2022
Barve in laki - Preskus trdote z dušenjem nihanja (ISO/DIS 1522:2022)
Paints and varnishes - Pendulum damping test (ISO/DIS 1522:2022)
Beschichtungsstoffe - Pendeldämpfungsprüfung (ISO/DIS 1522:2022)
Peintures et vernis - Essai d'amortissement du pendule (ISO/DIS 1522:2022)
Ta slovenski standard je istoveten z: prEN ISO 1522
ICS:
87.040 Barve in laki Paints and varnishes
oSIST prEN ISO 1522:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 1522:2022
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oSIST prEN ISO 1522:2022
DRAFT INTERNATIONAL STANDARD
ISO/DIS 1522
ISO/TC 35/SC 9 Secretariat: BSI
Voting begins on: Voting terminates on:
2022-01-18 2022-04-12
Paints and varnishes — Pendulum damping test
Peintures et vernis — Essai d'amortissement du pendule
ICS: 87.040
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
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STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 1522:2022(E)
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 SUPPORTING DOCUMENTATION. © ISO 2022
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oSIST prEN ISO 1522:2022
ISO/DIS 1522:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022

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

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© ISO 2022 – All rights reserved
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oSIST prEN ISO 1522:2022
ISO/DIS 1522:2022(E)
Contents Page

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

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

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

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

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

4 Principle ........................................................................................................................................................................................................................ 1

5 Apparatus .................................................................................................................................................................................................................... 1

6 Sampling ....................................................................................................................................................................................................................... 4

7 Test panels ..................................................................................................................................................................................................................4

7.1 Substrate ...................................................................................................................................................................................................... 4

7.2 Preparation and coating ................................................................................................................................................................ 4

7.3 Drying and conditioning ................................................................................................................................................................ 4

7.4 Thickness of coating .......................................................................................................................................................................... 4

8 Procedure ....................................................................................................................................................................................................................4

8.1 Calibration of the instruments ................................................................................................................................................. 4

8.2 Ambient conditions............................................................................................................................................................................. 5

8.3 Determination of pendulum damping time .................................................................................................................. 5

9 Expression of results ....................................................................................................................................................................................... 5

10 Precision ....................................................................................................................................................................................................................... 5

10.1 König pendulum .................................................................................................................................................................................... 5

10.1.1 General ........................................................................................................................................................................................ 5

10.1.2 Repeatability limit (r) .................................................................................................................................................... 5

10.1.3 Reproducibility limit (R) ............................................................................................................................................. 5

10.2 Persoz pendulum .................................................................................................................................................................................. 6

10.2.1 Repeatability limit (r) .................................................................................................................................................... 6

10.2.2 Reproducibility limit (R) ............................................................................................................................................. 6

11 Supplementary test conditions ............................................................................................................................................................6

12 Test report .................................................................................................................................................................................................................. 6

Annex A (normative) Calibration of the König pendulum............................................................................................................. 8

Annex B (normative) Calibration of the Persoz pendulum .......................................................................................................... 9

Bibliography .............................................................................................................................................................................................................................10

iii
© ISO 2022 – All rights reserved
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oSIST prEN ISO 1522:2022
ISO/DIS 1522:2022(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 [or Project Committee] ISO/TC 35, Paints and

varnishes, Subcommittee SC 9, General test methods for paints and varnishes.

This fourth edition cancels and replaces the third edition (ISO 1522:2006), which has been technically

revised.
The main changes are as follows:
— Clause 3 “Terms and definitions” has been added.

— The recommendation of using metal or glass panels has been removed from 7.1 because the test

method is also usable for other substrate materials, e.g. plastics.

— The precision statement of the König Pendulum in 10.1 has been corrected reflecting the test

conditions and results of the interlaboratory comparison in 2006.

— The tolerance for a measure in a calibration shall always be smaller than for the determination.

Therefore, in B.3.2 the tolerance for the time for the amplitude of swing to decrease from 12° to 4°

has been re-changed to ± 10 s, as it was in the first edition (ISO 1518-1:1998).

— The text has been editorially revised and the normative references have been updated.

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 2022 – All rights reserved
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oSIST prEN ISO 1522:2022
ISO/DIS 1522:2022(E)
Introduction

Two test procedures are considered in some detail, namely those of König and Persoz. The instruments

embody the same principle — that the amplitude of oscillation of a pendulum touching a surface

decreases more rapidly the softer the surface — but differ in respect of dimensions, period and

amplitude of oscillation.

The interaction between the pendulum and the paint film is complex, depending as it does on both

elastic and viscoelastic properties, and it is not possible to establish a general relationship between

results obtained by the two tests. Therefore, only one type of pendulum should be used in a given series

of measurements of damping time.

The following considerations may serve as a guide when considering which pendulum may offer an

advantage for a particular purpose.

a) On surfaces with a low coefficient of friction, the Persoz pendulum may skid, which would invalidate

results; however, this occurs only rarely with paints and varnishes.

b) It should be noted that both instruments reflect the sensitivity of the physical properties of a paint

to its environment, and the test therefore should be under controlled conditions of temperature

and humidity and in the absence of draughts. The thickness of the paint film and the nature of the

substrate may also affect the damping times.
© ISO 2022 – All rights reserved
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oSIST prEN ISO 1522:2022
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oSIST prEN ISO 1522:2022
DRAFT INTERNATIONAL STANDARD ISO/DIS 1522:2022(E)
Paints and varnishes — Pendulum damping test
1 Scope

This document specifies two methods of carrying out a pendulum damping test on a coating of paint,

varnish or other, related, product. It is applicable to single coatings and to multicoat systems.

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 1514, Paints and varnishes — Standard panels for testing
ISO 2808, Paints and varnishes — Determination of film thickness
ISO 4618, Paints and varnishes — Terms and definitions

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

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 4618 apply.

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Principle
...

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