ISO 7076-5:2014
(Main)Fire protection — Foam fire extinguishing systems — Part 5: Fixed compressed air foam equipment
Fire protection — Foam fire extinguishing systems — Part 5: Fixed compressed air foam equipment
ISO 7076-5:2014 specifies requirements, test and assessment methods, and performance criteria for fixed compressed air foam equipment of fixed foam extinguishing systems for indoor or outdoor utilization, or both. Technical safety requirements concerning the design and manufacturing of drives, auxiliary equipment, sources of energy, or pumps are outside the scope of ISO 7076-5:2014. Special hazards arising from the particular conditions under which these systems are used are outside the scope of ISO 7076-5:2014. Hazards relating to any kind of mechanical, electrical, hydraulic, pneumatic, and other equipment dealt with by the respective standards for such equipment are outside the scope of ISO 7076-5:2014. Hazards arising from the noise of systems are outside the scope of ISO 7076-5:2014.
Protection contre l'incendie — Installations fixes d'extinction par mousse physique — Partie 5: Équipement fixe pour mousse physique à air comprimé
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DRAFT INTERNATIONAL STANDARD ISO/DIS 7076-5
ISO/TC 21/SC 6 Secretariat: SAC
Voting begins on Voting terminates on
2013-05-15 2013-08-15
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Fire protection — Foam fire extinguishing systems —
Part 5:
Compressed air foam equipment
Protection contre l'incendie — Installations fixes d'extinction par mousse physique —
Partie 5: Équipement pour mousse physique à air comprimé
ICS 13.220.10
To expedite distribution, this document is circulated as received from the committee
secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at
publication stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.
THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS 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, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
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.
© International Organization for Standardization, 2013
ISO/DIS 7076-5
© ISO 2013
All rights reserved. Unless otherwise specified, 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved
ISO/DIS 7076-5
Contents Page
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
2 Terms and definitions . 2
4 Abbreviated terms . 4
5 Requirements . 4
5.1 Compliance . 4
5.2 General . 4
5.3 Water supplies . 4
5.4 Foam concentrate . 5
5.5 Air or Nitrogen supply . 5
5.6 Compressed air foam discharge devices . 6
5.7 Operation and control of systems . 6
5.8 System types . 7
5.9 Limitations . 7
5.10 System design . 7
5.11 CAFS discharge device choice and location . 8
5.12 Discharge density . 8
5.13 Discharge duration . 8
5.14 System flow calculation . 8
5.15 Testing and acceptance . 8
6 Tests . 8
6.1 General . 8
6.2 CAF fire extinguishment tests/verification . 9
6.3 CAF foam quality measurements . 12
6.4 CAF Foam discharge devices . 14
6.5 CAF Generation and proportioning . 14
6.6 Salt fog corrosion . 16
6.7 Thermal shock . 16
7 Report . 16
8 Data . 16
8.1 Operating instructions . 16
8.2 Service and maintenance instructions . 18
8.3 Fault causes and corrective actions . 18
9 Marking . 18
Annex A (normative) Conductivity test procedure . 20
Annex B (normative) Low expansion foam fire test configurations . 22
Annex C (normative) Low expansion foam fire test chronology . 23
ISO/DIS 7076-5
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 7076-5 was prepared by Technical Committee ISO/TC 21, Equipment for fire protection and fire fighting,
Subcommittee SC 6, Foam and powder media and firefighting systems using foam and powder.
ISO 7076 consists of the following parts, under the general title Fire protection — Foam fire extinguishing
systems:
Part 1: Foam proportioning equipment
Part 2 Low expansion foam equipment
Part 5: Compressed air foam equipment
iv © ISO 2013 – All rights reserved
ISO/DIS 7076-5
Introduction
This part of ISO 7076 is prepared by ISO/TC 21/SC 6, and is based on NFPA 11 Standard for Low-, Medium-,
and High-Expansion Foam, and FM Global Class 5130 Approval Standard on Foam Extinguishing Systems.
Compressed air foam equipment is required to function satisfactorily not only in the event of fire, but also
during and after exposure to conditions it is likely to meet in practice, including corrosion, vibration, direct
impact and indirect shock. Specific tests are intended to assess the performance of the equipment under such
conditions.
The aim of using such systems is to improve the fire suppression effectiveness of the fire extinguishing agent
on the burning materials for both Class A and Class B fires, by producing uniform and more stable bubbles,
which improves the cooling effect of the applied media.
This part of ISO 7076 is not intended to place any other restrictions on the design and construction of
compressed air foam equipment.
DRAFT INTERNATIONAL STANDARD ISO/DIS 7076-5
Fire protection — Foam fire extinguishing systems — Part 5:
Compressed air foam equipment
1 Scope
This part of ISO 7076 specifies requirements, test and assessment methods and performance criteria for
compressed air foam equipment of fixed foam extinguishing system for indoor or outdoor or both utilization.
Technical safety requirements concerning the design and manufacturing of drives, auxiliary equipment,
sources of energy or pumps are outside the scope of this part of ISO 7076.
Special hazards arising from the particular conditions under which these systems are used are outside the
scope of this part of ISO 7076.
Hazards relating to any kind of mechanical, electrical, hydraulic, pneumatic and other equipment dealt with by
the respective standards for such equipment are outside the scope of this part of ISO 7076.
Hazards arising from the noise of systems are outside the scope of this part of ISO 7076.
2 Normative references
The following referenced documents are indispensable for the application 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 7000, Graphical symbols for use on equipment — Index and synopsis
IEC 60204-1, Safety of machinery — Electrical equipment of machines — Part 1: General requirements
IEC 60529, Degrees of protection provided by enclosures (IP code)
IEC 61310-1, Safety of machinery — Indication, marking and actuation — Part 1: Requirements for visual,
acoustic and tactile signals
IEC 61310-2, Safety of machinery — Indication, marking and actuation — Part 2: Requirements for marking
IEC 61310-3, Safety of machinery — Indication, marking and actuation — Part 3: Requirements for the
location and operation of actuators
IEC 60068-1, Environmental testing — Part 1: General and guidance
ASTM B117, Standard practice for operating salt spray (fog) apparatus
EN 349, Safety of machinery — Minimum gaps to avoid crushing of parts of the human body
EN 547-2, Safety of machinery — Human body measurements — Part 2: Principles for determining the
dimensions required for access openings
EN 547-3, Safety of machinery — Human body measurements — Part 3: Anthropometric data
ISO/DIS 7076-5
EN 659, Protective gloves for firefighters
EN 894-1, Safety of machinery — Ergonomics requirements for the design of displays and control actuators
Part 1: General principles for human interactions with displays and control actuators
EN 894-2, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 2: Displays
EN 894-3, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 3: Control actuators
EN 894-4, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 4: Location and arrangement of displays and control actuators
EN 953, Safety of machinery — Guards — General requirements for the design and construction of fixed and
movable guards
EN 1846-2, Firefighting and rescue service vehicles — Part 2: Common requirements — Safety and
performance
EN 1846-3:2002+A1:2008, Fire-fighting and rescue service vehicles — Part 3: Permanently installed
equipment — Safety and performance
EN 14466:2005+A1:2008, Fire-fighting pum
...
INTERNATIONAL ISO
STANDARD 7076-5
First edition
2014-05-01
Fire protection — Foam fire
extinguishing systems —
Part 5:
Fixed compressed air foam equipment
Protection contre l’incendie — Installations fixes d’extinction par
mousse physique —
Partie 5: Équipement fixe pour mousse physique à air comprimé
Reference number
©
ISO 2014
© ISO 2014
All rights reserved. Unless otherwise specified, 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 3
5 Requirements . 3
5.1 Compliance . 3
5.2 General . 3
5.3 Operation and control of systems . 4
6 Tests . 4
6.1 General . 4
6.2 CAF fire extinguishment tests/verification . 5
6.3 CAF foam quality measurements . 7
6.4 CAF foam discharge devices .10
6.5 CAF generation and proportioning.10
6.6 Salt fog corrosion .11
6.7 Thermal shock .11
7 Test report .12
8 Data .12
8.1 Operating instructions .12
8.2 Service and maintenance instructions .13
8.3 Fault causes and corrective actions .14
9 Marking .14
Annex A (normative) Conductivity test procedure .15
Annex B (normative) Low expansion foam fire test configurations .17
Annex C (normative) Low expansion foam fire test chronology
...........................................................................................18
Bibliography .19
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 on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 21, Equipment for fire protection and fire fighting,
Subcommittee SC 6, Foam and powder media and firefighting systems using foam and powder.
ISO 7076 consists of the following parts, under the general title Fire protection — Foam fire extinguishing
systems:
— Part 1: Foam proportioning equipment
— Part 2: Low expansion foam equipment
— Part 5: Fixed compressed air foam equipment
The following parts are under preparation:
— Part 3: Medium expansion foam equipment
— Part 4: High expansion foam equipment
— Part 6: Vehicle mounted compressed air foam systems
iv © ISO 2014 – All rights reserved
Introduction
This part of ISO 7076 is prepared by ISO/TC 21/SC 6, and is based on FM Global Class 5130 Approval
Standard on Foam Extinguishing Systems.
Fixed compressed air foam equipment is required to function satisfactorily not only in the event of fire,
but also during and after exposure to conditions it is likely to meet in practice, including corrosion,
vibration, direct impact, and indirect shock. Specific tests are intended to assess the performance of the
equipment under such conditions.
The aim of using such systems is to improve the fire suppression effectiveness of the fire extinguishing
agent on the burning materials for both Class A and Class B fires, by producing uniform and more stable
bubbles, which improves the cooling effect of the applied media.
This part of ISO 7076 is not intended to place any other restrictions on the design and construction of
fixed compressed air foam equipment.
INTERNATIONAL STANDARD ISO 7076-5:2014(E)
Fire protection — Foam fire extinguishing systems —
Part 5:
Fixed compressed air foam equipment
1 Scope
This part of ISO 7076 specifies requirements, test and assessment methods, and performance criteria
for fixed compressed air foam equipment of fixed foam extinguishing systems for indoor or outdoor
utilization, or both.
Technical safety requirements concerning the design and manufacturing of drives, auxiliary equipment,
sources of energy, or pumps are outside the scope of this part of ISO 7076.
Special hazards arising from the particular conditions under which these systems are used are outside
the scope of this part of ISO 7076.
Hazards relating to any kind of mechanical, electrical, hydraulic, pneumatic, and other equipment dealt
with by the respective standards for such equipment are outside the scope of this part of ISO 7076.
Hazards arising from the noise of systems are outside the scope of this part of ISO 7076.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
IEC 60068-1, Environmental testing — Part 1: General and guidance
ASTM B117, Standard practice for operating salt spray (fog) apparatus
NFPA 11-2010, Standard for Low-, Medium-, and High-Expansion Foam
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
air delivery rate
volume of air, in normal condition, that is fed into a fixed compressed air foam system per unit of time
Note 1 to entry: While inside the system, the air volume will be compressed according to the pressure applied.
Once it leaves the system from the nozzle to the atmosphere, the air will expand to its normal volume again.
3.2
air/foam solution volume ratio
ratio stating how many parts of air (at normal condition) are mixed with one part of the foam solution
in a fixed compressed air foam system
Note 1 to entry: The ratio is expressed as the pair of values one part foam solution to x parts air (1:x).
3.3
approved
acceptable to the authority having jurisdiction
3.4
authority having jurisdiction
AHJ
organization, office, or individual responsible for enforcing the requirements of a code or standard, or
for approving equipment, materials, an installation, or a procedure
3.5
compressed air foam
CAF
homogenous foam produced by the combination of water, foam concentrate, and air or nitrogen under
pressure
3.6
compressed air foam generating method
method of generating compressed air foam recognized in this part of ISO 7076 using a mixing chamber
to combine air or nitrogen under pressure, water, and foam concentrate in the correct proportions
Note 1 to entry: The resulting compressed air foam flows through piping to the hazard being protected.
3.7
compressed air foam discharge device
device specifically designed to discharge compressed air foam in a predetermined pattern
3.8
fixed compressed air foam system
fixed CAFS
system employing compressed air foam discharge devices attached to a piping system through which
foam is transported from a mixing chamber
Note 1 to entry: Discharge of fixed CAFS begins with automatic actuation of a detection system, or manual
actuation that opens valves permitting compressed air foam, generated in the mixing chamber, to flow through a
piping system and discharged over the area served by the discharge devices.
3.9
drainage time 25 %
time taken for 25 % of the foam to collapse into solution
3.10
wet foam
foam produced by a fixed compressed air foam system and which has a foam solution/air volume ratio
of between 1:3 to 1:10
3.11
dry foam
foam produced by a fixed compressed air foam system and which has a foam solution/air volume ratio
of more than 1:10
3.12
foam expansion ratio
ratio of the volume of expanded foam and its solution
3.13
foam solution
mixture of water and foam concentrate
2 © ISO 2014 – All rights reserved
3.14
(foam solution) delivery rate
Q
W
volume (of water plus foam concentrate) delivered per unit of time by a system
Note 1 to entry: At propo
...
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