ISO 11601:2017
(Main)Fire fighting — Wheeled fire extinguishers — Performance and construction
Fire fighting — Wheeled fire extinguishers — Performance and construction
ISO 11601:2017 specifies the principal requirements intended to ensure the safety, reliability and performance of wheeled fire extinguishers.
Lutte contre l'incendie — Extincteurs sur roues — Performances et construction
General Information
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 11601
Third edition
2017-07
Fire fighting — Wheeled fire
extinguishers — Performance and
construction
Lutte contre l’incendie — Extincteurs sur roues — Performances et
construction
Reference number
ISO 11601:2017(E)
©
ISO 2017
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ISO 11601:2017(E)
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© ISO 2017, Published in Switzerland
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ii © ISO 2017 – All rights reserved
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ISO 11601:2017(E)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Types of wheeled fire extinguishers . 3
5 Extinguishing media, propellants and fill densities . 4
5.1 Extinguishing media . 4
5.1.1 Carbon dioxide . 4
5.1.2 Clean agents . 4
5.1.3 Powder . . 4
5.1.4 Foam concentrates . 4
5.2 Propellants . 4
5.3 Fill density. 4
5.4 Filling tolerance . 4
5.5 Charges . 5
5.5.1 Nominal charge . 5
5.5.2 Gross weight . 5
6 Performance . 5
6.1 Operating temperatures . 5
6.2 Effective discharge time and bulk range of discharge . 5
6.2.1 Effective discharge time . . . 5
6.2.2 Bulk range . 5
6.3 Resistance to temperature changes . 6
6.3.1 Requirements . 6
6.3.2 Test procedure . 6
6.4 Retention of charge . 7
6.4.1 Checking . 7
6.5 Intermittent discharge test . . 7
6.6 Resistance to corrosion . 7
6.6.1 External corrosion test . 7
6.6.2 Internal corrosion test for water and foam extinguishers . 8
6.7 Durability test . 8
6.8 Electrical conductivity of extinguisher discharge . 9
6.8.1 Requirement . 9
6.8.2 Procedure used to test for electrical conductivity . 9
7 Fire performance tests . 9
7.1 Suitability for the various classes of fire . 9
7.2 Class A fire tests .10
7.3 Class B fire tests .10
7.4 Class D fire tests .10
8 Construction requirements .10
8.1 General requirements .10
8.2 High-pressure cylinders .11
8.3 Low-pressure cylinders .11
8.3.1 General.11
8.4 Steel cylinders .11
8.4.1 Welded low-carbon steel .11
8.4.2 Stainless steel cylinders .12
8.5 Aluminium cylinders.12
8.6 Minimum wall thickness .12
8.7 Caps, valves and closures .12
8.8 Safety and anti-overfill devices .13
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ISO 11601:2017(E)
8.8.1 Safety devices .13
8.8.2 Anti-overfill devices .13
8.9 Manufacturing tests .13
8.9.1 Low-pressure cylinders .13
8.9.2 Leakage tests .13
8.10 Requirements for plastic components .14
8.10.1 General requirements .14
8.10.2 Requirements for normally pressurized components .14
8.10.3 Ultraviolet light exposure .14
8.10.4 Normally non-pressurized components .15
8.10.5 Exposure to extinguishing agent test .15
8.11 Discharge assembly .15
8.12 Control valve .16
8.13 Horn for carbon dioxide extinguisher .16
8.14 Method of operation .17
8.15 Safety locking devices .17
8.16 Pressure gauges for low-pressure extinguishers .17
8.16.1 General.17
8.16.2 Pressure gauge calibration test .18
8.16.3 Pressure gauge burst strength test .18
8.16.4 Pressure gauge overpressure test .19
8.16.5 Pressure gauge impulse test .19
8.16.6 Pressure gauge relief test .19
8.16.7 Pressure gauge water resistance test .19
8.16.8 Pressure gauge leakage test .19
8.16.9 Pressure gauge plastics components .20
8.17 Siphon tubes and filters for water-based extinguishers .20
8.18 Carriage assembly .20
8.18.1 Carriage . .20
8.18.2 Mobility .20
8.18.3 Hose retaining unit .20
8.19 Gasket and O-rings .21
8.19.1 Tensile strength, elongation, maximum set and hardness.21
8.19.2 Compression set .21
9 Colour and marking.21
9.1 Colour .21
9.2 Marking .21
9.3 Operating instructions .22
9.4 Warning markings .23
9.5 Use-code symbols .23
9.6 Recharging instructions .23
9.7 Inspection instructions .24
10 Manuals .24
10.1 User manual .24
10.2 Service manual .25
Annex A (normative) Clean agent FK-5-1-12 — Extinguishing agent physical properties .26
Annex B (normative) Clean agent HCFC Blend B — Extinguishing agent physical properties .29
Annex C (normative) Clean agent HFC-227ea — Extinguishing agent physical properties.32
Annex D (normative) Clean agent HFC-236fa — Extinguishing agent physical properties .35
Bibliography .38
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ISO 11601:2017(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 on 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 the following
URL: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 21, Equipment for fire protection and fire
fighting, Subcommittee SC 2, Manually transportable fire extinguishers.
This third edition cancels and replaces the second edition (ISO 11601:2008), which has been technically
revised.
The main changes compared to the previous editions are as follows:
— new requirements for four clean agents have been added;
— marking requirements for water-based extinguishers found suitable for use on polar solvents has
been added.
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INTERNATIONAL STANDARD ISO 11601:2017(E)
Fire fighting — Wheeled fire extinguishers — Performance
and construction
1 Scope
This document specifies the principal requirements intended to ensure the safety, reliability and
performance of wheeled fire extinguishers.
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 37, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties
ISO 5923, Equipment for fire protection and fire fighting — Fire extinguishing media — Carbon dioxide
ISO 7165:2017, Fire fighting — Portable fire extinguishers — Performance and construction
ISO 7202, Fire protection — Fire extinguishing media — Powder
ISO 7203-1, Fire extinguishing media — Foam concentrates — Part 1: Specification for low-expansion foam
concentrates for top application to water-immiscible liquids
ISO 7203-2, Fire extinguishing media — Foam concentrates — Part 2: Specification for medium- and high-
expansion foam concentrates for top application to water-immiscible liquids
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:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at http:// www .iso .org/ obp
3.1
batch
group of the same products made on the same production line using the same lot of materials during
one production shift
3.2
body
metal shell of an extinguisher designed to contain the extinguishing media including any skirt
3.3
bulk range
range of the extinguisher when 50 % of its media has been expelled
3.4
burst pressure
P
b
pressure at which the extinguisher cylinder ruptures
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ISO 11601:2017(E)
3.5
charge of extinguisher
mass or volume of extinguishing medium contained in the extinguisher expressed in volume (litres) for
water-based extinguishers and in mass (kilograms) for other extinguishers
3.6
classification of fires
Class A fires involving solid materials, usually of an organic nature, in which combustion normally
takes place with the formation of glowing embers
Class B fires involving liquids or liquefiable solids
Class C fires involving gases
Class D fires involving metals
Class F fires involving cooking media (vegetable or animal oils and fats) in cooking appliances
Note 1 to entry: Class definitions are in accordance with ISO 3941.
3.7
clean agent
electrically non-conducting gaseous or vapourizing liquid fire extinguishant that does not leave residue
upon evaporation
Note 1 to entry: For conductive properties and amount of residue, see Annexes A, B, C and D.
3.8
closure
component, other than a safety device or pressure indicator, subject to internal pressure and used to
close off and seal the body
3.9
complete discharge
point in the discharge of an extinguisher when the internal pressure has equalized with the external
pressure with the control valve being kept fully open
3.10
effective discharge time
time from the commencement of discharge of the extinguishing medium at the nozzle to the gas point of
the discharge stream with the control valve fully open
3.11
extinguisher
appliance containing an extinguishing medium which may be discharged and directed onto a fire by the
action of internal pressure
Note 1 to entry: Discharge may be achieved by
a) stored pressure (constant pressurization of the extinguishing media container), or
b) cartridge or cylinder operated device (pressurization at the time of use by the release of a pressurizing gas
stored in a separate high-pressure cartridge or container).
3.12
extinguishing medium
substance contained in the extinguisher which causes extinguishment
3.13
fill density
mass in kilograms of extinguishing medium per litre of container volume as fitted for use, complete
with valve and internal fittings
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ISO 11601:2017(E)
3.14
gas point
point where the medium discharge changes from predominately medium to predominately expellant gas
3.15
lowest observable adverse effect level
LOAEL
lowest concentration at which an adverse physiological or toxicological effect has been observed
3.16
maximum service pressure
P
ms
equilibrium pressure developed in a normally charged and pressurized extinguisher which is
conditioned at 60 °C for at least 18 h
3.17
propellant
non-flammable compressed gas used to expel the extinguishing medium
3.18
rechargeable extinguisher
extinguisher designed and intended to be recharged after use
3.19
service pressure
P
s
equilibrium pressure developed in a normally charged and pressurized extinguisher conditioned at
20 °C for at least 18 h
3.20
test pressure
P
t
the higher of 1,43 × P , 2,5 × P or 2,0 MPa
ms s
3.21
wheeled fire extinguisher
appliance on wheels having a total mass more than 20 kg but not greater than 450 kg, which is designed
to be operated and transported to the fire by one person
4 Types of wheeled fire extinguishers
4.1 Wheeled fire extinguishers are described by the type of extinguishing medium which they contain.
At present, the types of wheeled fire extinguishers are
— water-based,
— powder,
— carbon dioxide, and
— clean agent.
NOTE In some countries, the manufacture and use of clean agents is regulated by the Montreal Protocol or
by national regulations.
4.2 Water-based wheeled fire extinguishers may contain plain water or water with additives such as
wetting agents, viscosity-increasing agents or flame-retardant, or foaming agents.
NOTE Currently there are no International Standards covering additives added to water to produce
antifreeze, wetting or other special characteristics.
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ISO 11601:2017(E)
4.3 Powders may be of the “BC” or “ABC” types, or may be specially prepared for Class D fires.
4.4 Wheeled fire extinguishers may have two extinguisher bodies per axle. Each extinguisher body
may contain the same or a different extinguishing medium provided they are compatible with each other.
5 Extinguishing media, propellants and fill densities
5.1 Extinguishing media
5.1.1 Carbon dioxide
Carbon dioxide used in wheeled fire extinguishers shall comply with ISO 5923.
5.1.2 Clean agents
Clean agents used in wheeled fire extinguishers shall comply with Annex A for FK-5-1-12, Annex B for
HCFC Blend B, Annex C for HFC-227ea or Annex D for HFC 236fa as appropriate or shall be regulated by
the national environmental regulatory body of a country.
NOTE In some countries, the manufacture and use of clean agents is regulated by the Montreal Protocol or
by national regulations.
5.1.3 Powder
Powder used in wheeled fire extinguishers shall comply with ISO 7202.
IMPORTANT — Exception: powders for use on Class D fires.
5.1.4 Foam concentrates
Foam concentrates used in wheeled fire extinguishers shall comply with ISO 7203-1 (alternatively,
ISO 7203-2).
5.2 Propellants
The propellant for stor
...
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