Coating powders

This document specifies a method for the calculation of the lower explosion limit of a coating powder, i.e. the minimum concentration of the coating powder in air which will form an explosive mixture. It is based on the measurement of the gross calorific value of the product, as determined by the method described in ISOÂ 1928.

Poudres pour revêtement

General Information

Status
Published
Publication Date
09-Dec-2021
Current Stage
5060 - Close of voting Proof returned by Secretariat
Start Date
17-Nov-2021
Completion Date
14-Dec-2021
Ref Project

RELATIONS

Effective Date
17-Jul-2021

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ISO 8130-4:2021 - Coating powders
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INTERNATIONAL ISO
STANDARD 8130-4
Second edition
2021-12
Coating powders —
Part 4:
Calculation of lower explosion limit
Poudres pour revêtement —
Partie 4: Calcul de la limite inférieure d’explosivité
Reference number
ISO 8130-4:2021(E)
© ISO 2021
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ISO 8130-4:2021(E)
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© ISO 2021

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

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© ISO 2021 – All rights reserved
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ISO 8130-4:2021(E)
Contents Page

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

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

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

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

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

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

5 Sampling ....................................................................................................................................................................................................................... 2

6 Determination of gross calorific value ......................................................................................................................................... 2

7 Calculation of the lower explosion limit ..................................................................................................................................... 2

8 Test report .................................................................................................................................................................................................................. 3

Bibliography ................................................................................................................................................................................................................................ 4

iii
© ISO 2021 – All rights reserved
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ISO 8130-4:2021(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 35, Paints and varnishes, Subcommittee

SC 9, General test methods for paints and vanishes, in collaboration with the European Committee for

Standardization (CEN) Technical Committee CEN/TC 139, Paints and varnishes, in accordance with the

Agreement on technical cooperation between ISO and CEN (Vienna Agreement).

This second edition cancels and replaces the first edition (ISO 8130-4:1992) and ISO 8130-4 Technical

Corrigendum 1:1993, which have been technically revised.
The main changes are as follows:

— the scope has been modified to differentiate between calculation and an estimation of the lower

explosion limit;

— the definition on lower explosion limit (3.1) has been clarified for coating powders and the short

term LEL has been introduced;
— the SI unit for the lower explosion limit has been corrected;

— the test report (Clause 8) shall note whether the lower explosion limit was calculated or estimated;

— the bibliography contains two new references;

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

— some text has been moved from the scope to the introduction.
A list of all parts in the ISO 8130 series can be
...

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