ISO 7202:2018

Fire protection — Fire extinguishing media — Powder

This document specifies requirements for the chemical and physical properties, and for minimum performance in defined test methods, of fire extinguishing powders suitable for use against fires of classes A, B, C and D. Requirements are also given for the information and data to be declared by the manufacturer. NOTE The classification of fires is given in ISO 3941.

Protection contre l'incendie — Agents extincteurs — Poudres

General Information

• Status: Published
• Publication Date: 15-Aug-2018
• ICS: 13.220.10 - Fire-fighting
• Technical Committee: ISO/TC 21/SC 6 - Foam and powder media and firefighting systems using foam and powder
• Drafting Committee: ISO/TC 21/SC 6/WG 2 - Extinguishing powders
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 18-Sep-2024

Relations

• Revises: ISO 7202:2012 - Fire protection — Fire extinguishing media — Powder
• Effective Date: 19-Dec-2015

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 7202
Third edition
2018-08
Fire protection — Fire extinguishing
media — Powder
Protection contre l'incendie — Agents extincteurs — Poudres
Reference number
©
ISO 2018
© ISO 2018
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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Sampling . 2
5 Characterization statement and requirements . 2
5.1 General . 2
5.2 Bulk density . 2
5.3 Sieve analysis . 2
5.4 Chemical content . 2
5.5 Content of mono ammonium phosphate in Class ABC powders . 3
5.6 Toxicity . 3
6 Fire test performance . 3
6.1 General . 3
6.2 Class A . 4
6.3 Class B . 4
6.4 Class C . 4
6.5 Class D . 4
7 Fluidity testing . 4
8 Resistance to caking and lumping . 4
9 Water repellence . 4
10 Moisture content . 4
11 Electrical insulation value . 5
12 Moisture absorbance . 5
13 Test methods . 5
13.1 Bulk density . 5
13.1.1 Apparatus . 5
13.1.2 Procedure . 5
13.2 Sieve analysis . 6
13.2.1 General. 6
13.2.2 Method 1 . 6
13.2.3 Method 2 . 6
13.3 Performance methods for test fires . 7
13.3.1 Rating suitability for the various classes of fire . 7
13.4 Fluidity testing . 7
13.4.1 Apparatus . 7
13.4.2 Procedure . 8
13.4.3 Result . 8
13.5 Test for resistance to caking and lumping . 9
13.5.1 Apparatus . 9
13.5.2 Procedure .10
13.6 Water repellence test .10
13.6.1 Apparatus .10
13.6.2 Procedure .10
13.7 Test method for moisture content — Absorbance by sulfuric acid .10
13.7.1 Apparatus .10
13.7.2 Procedure .10
13.8 Electrical insulation test .11
13.8.1 Apparatus .11
13.8.2 Procedure .11
13.9 Moisture absorption testing .12
13.9.1 Apparatus .12
13.9.2 Procedure .12
13.10 Analysis for content of mono ammonium phosphate .12
13.10.1  Sample taking .12
13.10.2  Apparatus .12
13.10.3  Chemicals .13
13.10.4  Preparation of sample .13
13.10.5  Titration .13
13.10.6  Evaluation of the result .13
Annex A (informative) Compatibility between extinguishing powders and foams .15
Annex B (informative) Suitability and equivalence of extinguishing powders in equipment .22
Annex C (informative) Sampling method .23
Annex D (informative) Moisture content testing — Vacuum drying .24
Annex E (informative) Alternate testing for mono ammonium phosphate content.25
Bibliography .27
iv © ISO 2018 – All rights reserved

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
...

INTERNATIONAL ISO
STANDARD 7202
Third edition
2018-08
Fire protection — Fire extinguishing
media — Powder
Protection contre l'incendie — Agents extincteurs — Poudres
Reference number
©
ISO 2018
© ISO 2018
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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Sampling . 2
5 Characterization statement and requirements . 2
5.1 General . 2
5.2 Bulk density . 2
5.3 Sieve analysis . 2
5.4 Chemical content . 2
5.5 Content of mono ammonium phosphate in Class ABC powders . 3
5.6 Toxicity . 3
6 Fire test performance . 3
6.1 General . 3
6.2 Class A . 4
6.3 Class B . 4
6.4 Class C . 4
6.5 Class D . 4
7 Fluidity testing . 4
8 Resistance to caking and lumping . 4
9 Water repellence . 4
10 Moisture content . 4
11 Electrical insulation value . 5
12 Moisture absorbance . 5
13 Test methods . 5
13.1 Bulk density . 5
13.1.1 Apparatus . 5
13.1.2 Procedure . 5
13.2 Sieve analysis . 6
13.2.1 General. 6
13.2.2 Method 1 . 6
13.2.3 Method 2 . 6
13.3 Performance methods for test fires . 7
13.3.1 Rating suitability for the various classes of fire . 7
13.4 Fluidity testing . 7
13.4.1 Apparatus . 7
13.4.2 Procedure . 8
13.4.3 Result . 8
13.5 Test for resistance to caking and lumping . 9
13.5.1 Apparatus . 9
13.5.2 Procedure .10
13.6 Water repellence test .10
13.6.1 Apparatus .10
13.6.2 Procedure .10
13.7 Test method for moisture content — Absorbance by sulfuric acid .10
13.7.1 Apparatus .10
13.7.2 Procedure .10
13.8 Electrical insulation test .11
13.8.1 Apparatus .11
13.8.2 Procedure .11
13.9 Moisture absorption testing .12
13.9.1 Apparatus .12
13.9.2 Procedure .12
13.10 Analysis for content of mono ammonium phosphate .12
13.10.1  Sample taking .12
13.10.2  Apparatus .12
13.10.3  Chemicals .13
13.10.4  Preparation of sample .13
13.10.5  Titration .13
13.10.6  Evaluation of the result .13
Annex A (informative) Compatibility between extinguishing powders and foams .15
Annex B (informative) Suitability and equivalence of extinguishing powders in equipment .22
Annex C (informative) Sampling method .23
Annex D (informative) Moisture content testing — Vacuum drying .24
Annex E (informative) Alternate testing for mono ammonium phosphate content.25
Bibliography .27
iv © ISO 2018 – All rights reserved

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
...