IEC 60335-2-72:2012

Household and similar electrical appliances - Safety - Part 2-72: Particular requirements for floor treatment machines with or without traction drive, for commercial use

IEC 60335-2-72:2012 deals with the safety of powered ride-on and powered walk-behind machines intended for commercial indoor or outdoor use for the following applications:
- sweeping,
- scrubbing,
- wet or dry pick-up,
- polishing,
- application of wax, sealing products and powder based detergents,
- shampooing of floors with an artificial surface. Their cleaning motion is more linear than lateral or periodic. This standard applies to machines for commercial use. The following list, although not comprehensive, gives an indication of locations that are included in the scope:
- public use areas such as hotels, schools, hospitals;
- industrial locations, for example factories and manufacturing shops;
- retail outlets, for example shops and supermarkets;
- business premises, for example offices and banks;
- all uses other than normal housekeeping purposes. They may be equipped with a traction drive system. The following power systems are covered:
- internal combustion engines,
- mains powered motors up to a rated voltage of 250 V for single-phase appliances and 480 V for other appliances and
- battery powered motors. Battery powered machines may be equipped with a built-in battery charger. This third edition cancels and replaces the second edition published in 2002 and its Amendment 1 (2005). It constitutes a technical revision. The principal changes in this edition as compared with the second edition of IEC 60335-2-72 are as follows (minor changes are not listed). The standard has be revised completely and changed significantly, in particular with regard to the following clauses:
- the title has been changed for better distinction with regard to IEC 60335-2-67;
- the scope has been revised editorially to avoid misunderstandings;
- Clause 3 has been revised with regard to the requirements revised;
- the standard has been revised in general and updated regarding state-of-the-art, as far as necessary, in particular some changes have been made to Clauses 15, 22, and 25;
- the markings and instructions (Clause 7) have been revised basically;
- a new Annex DD 'Emission of acoustical noise' was added;
- and a new Annex EE 'Emission of vibration' was added. Keywords: Floor treatment machine; walk-behind machines, traction drive.
This publication is to be read in conjunction with IEC 60335-1:2010.

Appareils électrodomestiques et analogues - Sécurité – Partie 2-72: Exigences particulières pour les machines de traitement des sols avec ou sans commande de dispositif de déplacement, à usage commercial

General Information

• Status: Published
• Publication Date: 28-Mar-2012
• ICS: 97.080 - Cleaning appliances
• Technical Committee: SC 61J - Safety of electrical motor-operated cleaning appliances for commercial use
• Current Stage: DELPUB - Deleted Publication
• Start Date: 18-May-2016
• Completion Date: 26-Oct-2025

Relations

• Revised: IEC 60335-2-72:2016 - Household and similar electrical appliances - Safety - Part 2-72: Particular requirements for floor treatment machines with or without traction drive, for commercial use
• Effective Date: 05-Sep-2023
• Revises: IEC 60335-2-72:2002 - Household and similar electrical appliances - Safety - Part 2-72: Particular requirements for automatic machines for floor treatment for commercial and industrial use
• Effective Date: 05-Sep-2023
• Revises: IEC 60335-2-72:2002/AMD1:2005 - Amendment 1 - Household and similar electrical appliances - Safety - Part 2-72: Particular requirements for automatic machines for floor treatment for commercial and industrial use
• Effective Date: 05-Sep-2023

Overview

IEC 60335-2-72:2012 - Household and similar electrical appliances - Safety - Part 2-72: Particular requirements for floor treatment machines with or without traction drive, for commercial use - is the third edition (2012) product-family standard that specifies safety requirements for powered ride-on and walk-behind machines used in commercial indoor and outdoor cleaning tasks. It is intended to be read together with IEC 60335-1:2010 (general requirements).

The standard covers machines for:

• sweeping, scrubbing, wet or dry pick‑up, polishing,
• application of wax, sealing products and powder detergents,
• shampooing of floors with artificial surfaces, whose cleaning motion is primarily linear rather than lateral or periodic.

Covered machine types include floor treatment machines with or without traction drive (ride-on and walk‑behind), and power options include internal combustion engines, mains motors (up to 250 V single‑phase and 480 V for other appliances), and battery‑powered motors (including built‑in chargers).

Key topics and technical requirements

IEC 60335-2-72 supplements and, where necessary, modifies clauses of Part 1. Major technical topics addressed include:

• Marking and instructions (Clause 7) - revised requirements for user information and safety labeling.
• Terms and definitions (Clause 3) - updated for clarity and consistency.
• Construction, stability and mechanical hazards (Clauses 20, 21, 22) - design and strength requirements to prevent tip-over, entrapment and mechanical failure.
• Electrical safety - protection against access to live parts, leakage current, electric strength and transient overvoltages.
• Moisture resistance, heating and endurance (Clauses 15, 16, 18) - ensuring safe operation in wet/harsh cleaning environments.
• Supply and power systems - requirements for battery chargers, internal combustion fuel systems (including LPG Annex BB) and mains connections.
• Emissions and ergonomics - new informative Annex DD (acoustical noise) and Annex EE (vibration) added in this edition.
• Additional normative annexes for batteries, LPG engines, FOPS (falling-object protective structures), and precast paving slab tests.

The 2012 edition replaced the 2002 edition and its 2005 amendment, updating state‑of‑the‑art requirements and clarifying the scope (notably to better distinguish from IEC 60335-2-67).

Practical applications

This standard is used to design, test and certify commercial floor treatment machines such as:

• ride-on scrubbers and sweepers,
• walk‑behind scrubbers, polishers and shampooers,
• industrial and retail floor cleaning machines with traction drive.

Compliance helps reduce electrical, mechanical, thermal and acoustic hazards during normal and reasonably foreseeable abnormal use.

Who should use this standard

• Manufacturers and product designers of commercial floor treatment machines
• Product safety, compliance and certification engineers
• Test laboratories and conformity assessment bodies
• Procurement and facilities managers specifying commercial cleaning equipment
• Health & safety officers and regulatory authorities

Related standards

• IEC 60335-1 (General requirements) - mandatory companion document
• Other IEC 60335 Part 2 standards where multifunction appliances overlap

Keywords: Floor treatment machine, walk-behind machines, traction drive, commercial cleaning, IEC 60335-2-72, safety standard.

Standards Content (Sample)

IEC 60335-2-72 ®
Edition 3.0 2012-03
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-72: Particular requirements for floor treatment machines with or without
traction drive, for commercial use

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IEC 60335-2-72 ®
Edition 3.0 2012-03
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –

Part 2-72: Particular requirements for floor treatment machines with or without

traction drive, for commercial use

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XA
ICS 97.080 ISBN 978-2-8322-0069-8

– 2 – 60335-2-72 © IEC:2012(E)
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms and definitions . 10
4 General requirement . 13
5 General conditions for the tests . 13
6 Classification . 13
7 Marking and instructions . 14
8 Protection against access to live parts . 18
9 Starting of motor-operated appliances . 18
10 Power input and current . 18
11 Heating . 18
12 Void. 19
13 Leakage current and electric strength at operating temperature . 19
14 Transient overvoltages . 19
15 Moisture resistance . 19
16 Leakage current and electric strength . 20
17 Overload protection of transformers and associated circuits . 21
18 Endurance . 21
19 Abnormal operation . 21
20 Stability and mechanical hazards . 22
21 Mechanical strength . 27
22 Construction . 29
23 Internal wiring . 34
24 Components . 34
25 Supply connection and external flexible cords . 34
26 Terminals for external conductors . 35
27 Provision for earthing . 36
28 Screws and connections . 36
29 Clearances, creepage distances and solid insulation . 36
30 Resistance to heat and fire . 36
31 Resistance to rusting . 36
32 Radiation, toxicity and similar hazards . 36
Annexes . 41
Annex B (normative) Appliances powered by rechargeable batteries. 42
Annex AA (normative) Precast paving slabs . 48
Annex BB (normative) Requirements for internal combustion engine powered
machines using liquefied petroleum gas (LPG) . 49
Annex CC (normative) Falling-object protective structures (FOPS) – Dynamic test and
performance requirements . 52

60335-2-72 © IEC:2012(E) – 3 –
Annex DD (informative) Emission of acoustical noise . 55
Annex EE (informative) . 58
Bibliography . 59

Figure 101 – Impact test apparatus . 37
Figure 102 – Apparatus for testing the abrasion resistance of current-carrying hoses . 38
Figure 103 – Apparatus for testing the resistance to flexing of current-carrying hoses . 39
Figure 104 – Configuration of the hose for the freezing treatment . 39
Figure 105 – Flexing positions for the hose after removal from the freezing cabinet . 40
Figure 106 – Warning symbol: Do not inhale exhaust fumes . 40
Figure B.101 – Forms of constructions for cleaning machines covered by Annex B . 43
Figure B.102 – Circuit for testing battery chargers (taken from IEC 60335-2-29) . 47
Figure CC.1 – Satisfactory protection by the overhead guard . 53
Figure CC.2 – Admissible deformation when the overhead guard is supported at all
sides . 54
Figure CC.3 – Admissible deformation when the overhead guard is supported at one
side . 54

Table 12 – Pull force and torque . 35
Table DD.1 – Determination of uncertainty . 57

– 4 – 60335-2-72 © IEC:2012(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-72: Particular requirements for floor treatment machines
with or without traction drive, for commercial use

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60335-2-72 has been prepared by subcommittee 61J: Electrical
motor-operated cleaning appliances for commercial use, of IEC technical committee 61:
Safety of household and similar electrical appliances.
This third edition cancels and replaces the second edition published in 2002 and its
Amendment 1 (2005). It constitutes a technical revision.
The principal changes in this edition as compared with the second edition of IEC 60335-2-72
are as follows (minor changes are not listed):

60335-2-72 © IEC:2012(E) – 5 –
The standard has be revised completely and changed significantly, in particular with regard to
the following clauses:
– the title has been changed for better distinction with regard to IEC 60335-2-67;
– the scope has been revised editorially to avoid misunderstandings;
– Clause 3 has been revised with regard to the requirements revised;
– the standard has been revised in general and updated regarding state-of-the-art, as far as
necessary, in particular some changes have been made to Clauses 15, 22, and 25;
– the markings and instructions (Clause 7) have been revised basically;
– a new Annex DD 'Emission of acoustical noise' was added; and
– a new Annex EE 'Emission of vibration' was added.
The text of this standard is based on the following documents:
FDIS Report on voting
61J/491/FDIS 61J/500/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments. It was established on the basis of the fifth edition (2010) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for floor treatment
machines with or without traction drive, for commercial use.
When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies
as far as is reasonable. When this standard states “addition”, “modification” or “replacement”,
the relevant text in Part 1 is to be adapted accordingly.
NOTE 2 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including
those in a replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.
NOTE 3 The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
A list of all parts of the IEC 60335 series, under the general title: Household and similar
electrical appliances – Safety, can be found on the IEC website.

– 6 – 60335-2-72 © IEC:2012(E)
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this standard may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
60335-2-72 © IEC:2012(E) – 7 –
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in
normal use taking into account the manufacturer's instructions. It also covers abnormal
situations that can be expected in practice and takes into account the way in which
electromagnetic phenomena can affect the safe operation of appliances.
This standard takes into account the requirements of IEC 60364 as far as possible so that
there is compatibility with the wiring rules when the appliance is connected to the supply
mains. However, national wiring rules may differ.
If an appliance within the scope of this standard also incorporates functions that are covered
by another part 2 of IEC 60335, the relevant part 2 is applied to each function separately, as
far as is reasonable. If applicable, the influence of one function on the other is taken into
account.
When a part 2 standard does not include additional requirements to cover hazards dealt with
in Part 1, Part 1 applies.
NOTE 1 This means that the technical committees responsible for the part 2 standards have determined that it is
not necessary to specify particular requirements for the appliance in question over and above the general
requirements.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
NOTE 2 Horizontal and generic standards covering a hazard are not applicable since they have been taken into
consideration when developing the general and particular requirements for the IEC 60335 series of standards. For
example, in the case of temperature requirements for surfaces on many appliances, generic standards, such as
ISO 13732-1 for hot surfaces, are not applicable in addition to Part 1 or part 2 standards.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of the standard if, when examined and tested, it is found to
have other features that impair the level of safety covered by these requirements.
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of
the requirements and, if found to be substantially equivalent, may be considered to comply
with the standard.
– 8 – 60335-2-72 © IEC:2012(E)
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-72: Particular requirements for floor treatment machines
with or without traction drive, for commercial use

1 Scope
This clause of Part 1 is replaced by the following.
This International Standard deals with the safety of powered ride-on and powered walk-
behind machines intended for commercial indoor or outdoor use for the following
applications:
– sweeping,
– scrubbing,
– wet or dry pick-up,
– polishing,
– application of wax, sealing products and powder based detergents,
– shampooing
of floors with an artificial surface.
Their cleaning motion is more linear than lateral or periodic.
NOTE 101 By contrast, the cleaning motion of machines covered by IEC 60335-2-67 is more lateral or periodic
than linear.
NOTE 102 This standard applies to machines for commercial use. The following list, although not
comprehensive, gives an indication of locations that are included in the scope:
– public use areas such as hotels, schools, hospitals;
– industrial locations, for example factories and manufacturing shops;
– retail outlets, for example shops and supermarkets;
– business premises, for example offices and banks;
– all uses other than normal housekeeping purposes.
They may be equipped with a traction drive system. The following power systems are
covered:
– internal combustion engines,
– mains powered motors up to a rated voltage of 250 V for single-phase appliances and
480 V for other appliances,
– battery powered motors.
Battery powered machines may be equipped with a built-in battery charger.
This standard does not apply to
– floor treatment appliances for household use according to IEC 60335-2-10;
– floor treatment machines for commercial use according to IEC 60335-2-67;
– spray extraction machines for commercial use (IEC 60335-2-68);

60335-2-72 © IEC:2012(E) – 9 –
– wet and dry vacuum cleaners, including power brush, for commercial use
(IEC 60335-2-69);
– road sweepers;
NOTE 103 In Europe, EN 13019 covers road sweepers.
– machines designed for use on slopes with a gradient exceeding 20 %;
– machines equipped with a power take-off (PTO);
– machines designed for use in corrosive or explosive environments (dust, vapour or gas);
– machines designed for picking up hazardous dusts (as defined in IEC 60335-2-69),
inflammable substances, or glowing particles;
– machines designed for use in vehicles or on board of ships or aircraft.
NOTE 104 Attention is drawn to the fact that
– in many countries additional requirements on the safe use of the equipment covered can be specified by the
national health authorities, the national authorities responsible for the protection of labour, the national water
supply authorities and similar authorities;
– ride-on machines designed for transport over public roads can be subject to additional requirements (e.g.
lighting, license plate etc.).
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
IEC 60312-1, Vacuum cleaners for household use – Part 1: Dry vacuum cleaners – Methods
for measuring the performance
IEC 62061, Safety of machinery – Functional safety of safety-related electrical, electronic and
programmable electronic control systems
ISO 3411, Earth moving machinery – Human physical dimensions of operators and minimum
operator space envelope
ISO 5353, Earth-moving machinery, and tractors and machinery for agriculture and forestry –
Seat index point
ISO 6344-2, Coated abrasives – Grain size analysis – Part 2: Determination of grain size
distribution of macrogrits P12 to P220
ISO 13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General
principles for design
ISO 13857, Safety of machinery – Safety distances to prevent hazard zones being reached by
the upper and lower limbs
ISO 25119 (all parts), Tractors and machinery for agriculture and forestry – Safety-related
parts of control systems
Replacement:
IEC 60068-2-78:2001, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat,
steady state
– 10 – 60335-2-72 © IEC:2012(E)
3 Terms and definitions
This clause of Part 1 is applicable except as follows.
3.1.9 Replacement:
normal operation
conditions under which the machine is operated in normal use, as intended by the
manufacturer
It denotes the load corresponding to the rated power input or the highest obtainable load of
all particular loads of the various functions that can be operated at the same time in
accordance with the manufacturer’s instructions. For machines provided with a seat or an
operator platform, a mass of 75 kg secured in position at the appropriate height is used to
simulate the operator in the most unfavourable position.
Socket-outlets for accessories are loaded with a resistive load in accordance with the
marking.
Operational functions include all treatment and driving functions.
The normal operation related to the operational functions is specified in 3.1.9.101 to
3.1.9.103:
3.1.9.101 Scrubbing and sweeping machines are operated on a surface of hydraulically
pressed concrete paving slabs (see Annex AA) intermittently at least 30 min switched on, and
for a period of 5 min switched off.
An alternative is a smooth concrete area of a surface consistency comparable with
hydraulically pressed concrete paving slabs.
3.1.9.102 Polishing and dry buffing machines are operated as follows.
PVC- or comparable flooring surfaces are considered to be suitable for establishing normal
operation. The peak of input occurring during the drying process of the chemical applied to
treat the surface is not taken as normal operation but is averaged by extending
measurements over a period of at least 10 min.
3.1.9.103 Carpet shampooers are operated on a test surface consisting of a carpet, in
accordance with IEC 60312-1, the carpet being fastened to the floor.
Prior to testing, the brush of the shampooing machine is conditioned by operating it for 15 min
on a clean, dry concrete surface. After running on the concrete surface, the brush is
immersed in a shampoo solution for at least 30 min.
The solution tank is filled and the machine is operated over a period of 10 min.
3.101
traction drive
system used to propel the machine, e.g. by powered wheels
Traction by the effect of rotating brushes is not included.
3.102
walk-behind machine
machine with or without a traction drive designed to be controlled by the operator walking
behind the machine
It may be equipped with a detachable sulky.

60335-2-72 © IEC:2012(E) – 11 –
3.103
ride-on machine
machine with a traction drive and with an operator seat or a platform on which the operator
is sitting/standing during operation
3.104
sulky (trailer)
removable trailing seat or stand-on platform with wheels or skids designed to carry an
operator in a sitting or standing position, while controlling a walk-behind machine with
traction drive
3.105
wet cleaning machine
machine for applying and sucking up liquids
3.106
water-suction cleaning machine
machine for sucking up liquids
3.107
motorized cleaning head
hand-held or hand-guided cleaning device connected to the machine, with an integrated
electrical motor
Note 1 to entry: The main cleaning head permanently attached is not regarded as a motorized cleaning head.
3.108
hopper
container to store picked up debris
3.109
parking brake
means, actuated by the operator in the normal operating position, to prevent a stationary
machine from moving
3.110
service brake
means for decelerating and stopping a machine, with a traction drive, from its ground travel
speed
3.111
operator presence control
OPC
control device that automatically interrupts the power, e.g. to a drive or an engine, when the
operator's actuating force is removed
Note 1 to entry: Such devices can be, for example, continuous action controls ("hold-to-run" controls) or seat
switches.
3.112
guard
part of the machine specifically designed to provide protection by means of a physical barrier,
such as, for example, a casing, a shield, a cover, a screen, a door, an enclosure or a fence;
other parts of the machine that fulfil a primarily operational function, such as, for example, the
frame of the machine, may also fulfil a protective function but are not referred to as guards
Note 1 to entry: Three main kinds of guards can be distinguished: fixed guards, interlocking moveable guards
and adjustable guards. Interlocking movable guards are required where frequent access is envisaged, while fixed
guards can be used where frequent access is not envisaged.

– 12 – 60335-2-72 © IEC:2012(E)
3.113
operator
person installing, operating, adjusting, cleaning, moving, or performing user maintenance on
the machine
3.114
gross vehicle weight
GVW
maximum allowable fully laden weight of the machine and its payload, as ready for use
Note 1 to entry: See 5.102 for further test conditions.
3.115
test solution
solution which consists of 20 g of NaCl and 1 ml of a solution of 28 % by mass of dodecyl
sodium sulphate in each 8 l of water
Note 1 to entry: The chemical designation of dodecyl sodium sulphate is C H NaSO .
12 25 4
3.116
level surface
plane with a gradient up to and including 2 %
3.117
slope
inclined plane with a gradient greater than 2 % but not exceeding 20 %
3.118
maximum cleaning gradeability
maximum gradient according to manufacturer's instruction and as indicated on the machine,
on which the machine can be used safely for cleaning purposes
3.119
maximum transport gradeability
maximum gradient according to manufacturer's instruction, on which the machine can be used
safely for transport purposes
3.120
built-in charger
charger mounted on or into the machine and designed to operate only on or into the machine.
Note 1 to entry: Built-in chargers can also be called on-board chargers.
3.121
built-in charger with power supply function
component intended to provide power for charging, operation or both
3.122
commercial use
intended use of machines covered by this standard, i.e. not intended for normal housekeeping
purposes by private persons but which may be a source of danger to the public
I.e. in particular that
– the machines may be used by cleaning contractors, cleaning staff, etc.;
– they are used in commercial or public premises (i.e. offices, shops, hotels, hospitals,
schools, etc.) or in industrial (plants etc.) and light industrial (workshops etc.)
environments.
Note 1 to entry: Commercial use is also called professional use.

60335-2-72 © IEC:2012(E) – 13 –
4 General requirement
This clause of Part 1 is applicable except as follows:
Replacement of the first paragraph by the following:
Machines shall be constructed so that they function safely so as to cause no danger to
persons or surroundings during normal use, even in the event of carelessness, and during
installation, adjusting, maintenance, cleaning, repairing or transportation.
Addition:
For the purposes of this standard, the term ‘appliance’ as used in Part 1 is to be read as
‘machine’.
5 General conditions for the tests
This clause of Part 1 is applicable except as follows.
5.101 The test solution is to be stored in a cool atmosphere and used within seven days
after its preparation.
5.102 The GVW includes, if applicable, full clean water tanks, empty dirty water tanks (half
full for recycling systems), empty dust bags, hopper loaded at rated capacity, largest
recommended batteries, all options such as cords, hoses, wands, cleaning agents, brooms
and brushes.
For ride-on machines, the GVW includes a standard operator, weighing 75 kg.
5.103 Liquid containers of machines for wet scrubbing and shampooing are filled to the
highest level indicated by the manufacturer.
5.104 Machines that are designed to have a sulky are tested with the sulky including the
weight of a standard operator (75 kg) or without the sulky, whichever is the most
unfavourable condition.
6 Classification
This clause of Part 1 is applicable except as follows.
6.1 Replacement:
Machines shall be one of the following classes with respect to the protection against electric
shock:
– class I,
– class II, or
– class III.
Compliance is checked by inspection and by the relevant tests.

– 14 – 60335-2-72 © IEC:2012(E)
6.2 Addition:
Mains supplied and battery powered machines for indoor use intended for dry cleaning only
shall be at least IPX0. Other machines shall be at least IPX3.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
th
7.1 Replacement of the 4 dashed item as follows:
– the business name and address of the manufacturer and, if applicable, his authorized
representative; any address shall be sufficient to ensure postal contact;
Addition:
Machines shall be marked in addition with the following:
– serial number, if any;
– designation of the machine and series or type, allowing the technical identification of the
product. This may be achieved by a combination of letters and/or numbers;
NOTE 101 Designation of machine, series or type includes the model or type reference as required in Part 1.
– year of construction, i.e. the year in which the manufacturing process is completed;
NOTE 102 The year of construction can be part of the serial number.
– GVW of the machine, in kg;
– the symbol indicating the maximum cleaning gradeability, with the value of x.
NOTE 103 I.e. the machine might be able to drive on a higher gradient (maximum transport gradeability).
This additional information can be given also in the instructions for use.
Machines intended to be used indoors and powered by internal combustion engines shall be
marked in addition with the symbol according to Figure 106. It is acceptable to show this
symbol in monochrome colour.
7.1.101 Motorized cleaning heads shall be marked with
– rated voltage or rated voltage range in volts;
– rated power input in watts;
– name, trade mark or identification mark of the manufacturer or responsible vendor;
– model or type reference;
– mass of the most usual configuration in kg.
Motorized cleaning heads for water-suction cleaning appliances, except those of class III
construction having a working voltage up to 24 V shall be marked with symbol
IEC 60417-5935 (2002-10).
NOTE This symbol is an information sign and, except for the colours, the rules of ISO 3864-1 apply.
Compliance is checked by inspection.
7.1.102 Socket-outlets for accessories shall be marked with the maximum load in watts on
the socket-outlet or close to it.
Compliance is checked by inspection.

60335-2-72 © IEC:2012(E) – 15 –
7.6 Addition:
x %
maximum cleaning gradeability ‘x’

[symbol IEC 60417-5935 (2002-10)] motorized cleaning head for water-

suction cleaning
7.12 Modification:
th
Replace the 4 paragraph by the following text.
This machine is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge.
Addition:
The front cover of the instructions shall include the substance of the following warning:
CAUTION Read the instructions before using the machine.
This wording may be replaced by symbols ISO 7000-0434 (2004-01) and either
ISO 7000-1641 (2004-01) or ISO 7000-0790 (2004-01).
The instructions shall contain at least the following:
– the business name and full address of the manufacturer and, if applicable, his authorized
representative;
– designation of series or type of the machine as marked on the machine itself, except for
the serial number;
NOTE 101 The designation of series or type can be abstracted, as long as the identification of the product is
ensured.
– the general description of the machine;
– the GVW of the machine in kilograms;
– the transportation weight of the machine in kilograms, which includes the batteries but
excludes options (e.g. driver cabin, FOPS, second and third side broom, front mounted
sweeping attachment for scrubbers), fresh water (in case of scrubbers or combined
machines), and the weight of a standard operator (75 kg);
– the intended use of the machine and the auxiliary equipment as covered by the scope of
this standard;
NOTE 102 Examples of auxiliary equipment are suction nozzles, spray bars, and lights.
– the meaning of the symbols used on the machine and in the instructions;
– drawings, diagrams, descriptions and explanations necessary for the safe use,
maintenance and repair of the machine and for checking its correct functioning;
– technical data including the markings on the machine;
– information regarding putting into service, safe operation, handling, transportation, and
storage of the machine taking into account its GVW;
– instructions to enable adjustment and maintenance to be carried out safely, including the
protective measures that should be taken during these operations;

– 16 – 60335-2-72 © IEC:2012(E)
– the conditions in which the machine meets the requirement of stability during use,
transportation, assembly, dismantling when out of service, testing or foreseeable
breakdowns;
– the procedure to be followed to prevent unsafe situations in the event of accident (e.g.
contact with or spillage of detergents, battery acid, fuel or oil) or equipment breakdown
(such as flat tire or component failure);
– the substance of the following:
This machine is intended for commercial use, for example in hotels, schools, hospitals,
factories, shops, offices and rental businesses.
The instructions shall indicate the type and frequency of inspections and maintenance
required for safe operation, including preventive maintenance measures. They shall, if
applicable, give the specifications of the spare parts if they affect the health and safety of the
operator.
In addition, the instructions shall give the following information, if applicable:
– for battery powered machines, instructions regarding the precautions to be taken for safe
charging;
– precautions to be taken when changing brushes or other attachments;
– information on the detergents or other liquids that may be used including the choice and
use of personal protective equipment (PPE);
– essential characteristics of auxiliary equipment which may be fitted to the machine;
– information regarding safe disposal of batteries;
– information on the seat adjustment and related parts;
– if split rims are used for pneumatic tyres, instructions shall be given for the safe change of
tyres.
For machines having a traction drive and a GVW exceeding 100 kg, the instructions shall
also include the substance of the following:
– in order to prevent unauthorized use of the machine, the power source shall be switched
off or locked, for example by removing the key of the main switch or the ignition key.
For machines with a traction drive that are designed to be used on slopes, the instructions
shall also include the substance of the following:
– machines left unattended shall be secured against unintentional movement.
7.12.101 The instructions shall include warnings concerning ways in which the machine shall
not be used, which in the experience of the manufacturer are likely to occur. At least, it shall
include the substance of the following warnings, if applicable.
– WARNING Operators shall be adequately instructed on the use of these machines.
– WARNING Always ensure that the safety support is installed before working beneath
hopper.
– WARNING This machine is for dry use only.
– WARNING Do not inhale exhaust gas fumes. Only use indoors when adequate ventilation
is provided, and when a second person has been instructed to look after you.
– CAUTION This machine is for indoor use only.
– CAUTION This machine shall be stored indoors only.
– A warning that the machine shall be disconnected from its power source during cleaning or
maintenance and when replacing parts or converting the machine to another function:
• for mains operated machines, by removing the plug from the socket outlet;

60335-2-72 © IEC:2012(E) – 17 –
• for battery powered machines, by safely disconnecting at least the non frame
connected pole of the battery or by an equivalent method (disconnecting device);
• for internal combustion engine powered machines, by removing the ignition key and by
disconnecting the battery.
NOTE 1 Where no ignition key and no battery exist, the disconnection can be achieved by equivalent
means.
– WARNING Do not use for cleaning purposes on surfaces having a gradient exceeding
that marked on the machine.
NOTE 2 If the machine is marked for use on surfaces having a gradient up to and including 2 %, this warning
can be replaced by the following:
WARNING Do not use on slopes.
Instructions for ride-on machines fitted with hazardous exposed moving side brushes shall
also include the substance of the following:
– WARNING Always ensure that the warning light is switched on when the hazardous
exposed side brushes are moving.
Instructions for mains operated machines shall also include the substance of the following:
– WARNING Do not allow the supply cord to come into contact with the rotating brushes.
Instructions for machines having a current-carrying hose for dry suction, operating at other
than safety extra-low voltage, shall also include the substance of the following:
– WARNING This hose contains electrical connections: do not use it to collect water and
do not immerse in water for cleaning.
Instructions for ride-on machines shall also include the substance of the following, if
applicable:
– WARNING Do not use the machine without a falling object protective structure (FOPS) in
areas where it is likely that the operator is hit by falling objects.
Instructions for internal combustion engine powered machines using LPG shall also include
the substance of the following:
– WARNING Machines shall be parked safely.
– The machine shall be inspected by a qualified person regularly, in particular regarding the
LPG container and their connections, as required for safe operation by regional or national
regulations.
7.12.102 Information on noise
NOTE The instructions can provide information on airborne noise emission as indicated in DD.2.7.
7.12.103 Information on vibration
NOTE The instructions can provide information on vibration emission as indicated in EE.2.
7.13 Addition:
The words “Original instructions” shall appear on the language version(s) verified by the
manufacturer.
7.14 Addition:
The height of symbol IEC 60417-5935 (2002-10) shall be at least 15 mm.

– 18 – 60335-2-72 © IEC:2012(E)
Compliance is checked by measurement.
8 Protection against access to live parts
This clause of Part 1 is applicable except as follows.
8.1 Addition:
Water and water-borne cleaning agents are considered conductive.
9 Starting of motor-operated appliances
This clause of Part 1 is replaced by the following.
It shall only be possible to start the machine by intended actuation of a control device
provided for the purpose. The same requirement applies when restarting the machine after a
stoppage, whatever the cause. This requirement only applies to components where the
unexpected starting might cause a hazard. It does not apply to components such as suction
units, pumps, etc.
...

IEC 60335-2-72 ®
Edition 3.0 2012-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –
Part 2-72: Particular requirements for floor treatment machines with or without
traction drive, for commercial use

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-72: Exigences particulières pour les machines de traitement des sols
avec ou sans commande de dispositif de déplacement, à usage commercial

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IEC 60335-2-72 ®
Edition 3.0 2012-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –

Part 2-72: Particular requirements for floor treatment machines with or without

traction drive, for commercial use

Appareils électrodomestiques et analogues – Sécurité –

Partie 2-72: Exigences particulières pour les machines de traitement des sols

avec ou sans commande de dispositif de déplacement, à usage commercial

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.080 ISBN 978-2-8322-0069-8

– 2 – IEC 60335-2-72:2012 © IEC 2012

CONTENTS
FOREWORD . 4

INTRODUCTION . 7

1 Scope . 8

2 Normative references . 9

3 Terms and definitions . 10

4 General requirement . 13

5 General conditions for the tests . 13
6 Classification . 13
7 Marking and instructions . 14
8 Protection against access to live parts . 18
9 Starting of motor-operated appliances . 18
10 Power input and current . 18
11 Heating . 18
12 Void. 19
13 Leakage current and electric strength at operating temperature . 19
14 Transient overvoltages . 19
15 Moisture resistance . 19
16 Leakage current and electric strength . 20
17 Overload protection of transformers and associated circuits . 21
18 Endurance . 21
19 Abnormal operation . 21
20 Stability and mechanical hazards . 22
21 Mechanical strength . 27
22 Construction . 29
23 Internal wiring . 34
24 Components . 34
25 Supply connection and external flexible cords . 34
26 Terminals for external conductors . 35
27 Provision for earthing . 36

28 Screws and connections . 36
29 Clearances, creepage distances and solid insulation . 36
30 Resistance to heat and fire . 36
31 Resistance to rusting . 36
32 Radiation, toxicity and similar hazards . 36
Annexes . 41
Annex B (normative) Appliances powered by rechargeable batteries. 42
Annex AA (normative) Precast paving slabs . 48
Annex BB (normative) Requirements for internal combustion engine powered
machines using liquefied petroleum gas (LPG) . 49
Annex CC (normative) Falling-object protective structures (FOPS) – Dynamic test and
performance requirements . 52
Annex DD (informative) Emission of acoustical noise . 55

Annex EE (informative) . 58

Bibliography . 59

Figure 101 – Impact test apparatus . 37

Figure 102 – Apparatus for testing the abrasion resistance of current-carrying hoses . 38

Figure 103 – Apparatus for testing the resistance to flexing of current-carrying hoses . 39

Figure 104 – Configuration of the hose for the freezing treatment . 39

Figure 105 – Flexing positions for the hose after removal from the freezing cabinet . 40

Figure 106 – Warning symbol: Do not inhale exhaust fumes . 40
Figure B.101 – Forms of constructions for cleaning machines covered by Annex B . 43
Figure B.102 – Circuit for testing battery chargers (taken from IEC 60335-2-29) . 47
Figure CC.1 – Satisfactory protection by the overhead guard . 53
Figure CC.2 – Admissible deformation when the overhead guard is supported at all
sides . 54
Figure CC.3 – Admissible deformation when the overhead guard is supported at one

side . 54

Table 12 – Pull force and torque . 35
Table DD.1 – Determination of uncertainty . 57

– 4 – IEC 60335-2-72:2012 © IEC 2012

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –

SAFETY –
Part 2-72: Particular requirements for floor treatment machines

with or without traction drive, for commercial use

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60335-2-72 has been prepared by subcommittee 61J: Electrical
motor-operated cleaning appliances for commercial use, of IEC technical committee 61:
Safety of household and similar electrical appliances.
This third edition cancels and replaces the second edition published in 2002 and its
Amendment 1 (2005). It constitutes a technical revision.
The principal changes in this edition as compared with the second edition of IEC 60335-2-72
are as follows (minor changes are not listed):

The standard has be revised completely and changed significantly, in particular with regard to
the following clauses:
– the title has been changed for better distinction with regard to IEC 60335-2-67;

– the scope has been revised editorially to avoid misunderstandings;

– Clause 3 has been revised with regard to the requirements revised;

– the standard has been revised in general and updated regarding state-of-the-art, as far as

necessary, in particular some changes have been made to Clauses 15, 22, and 25;

– the markings and instructions (Clause 7) have been revised basically;

– a new Annex DD 'Emission of acoustical noise' was added; and
– a new Annex EE 'Emission of vibration' was added.
The text of this standard is based on the following documents:
FDIS Report on voting
61J/491/FDIS 61J/500/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments. It was established on the basis of the fifth edition (2010) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for floor treatment
machines with or without traction drive, for commercial use.
When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies
as far as is reasonable. When this standard states “addition”, “modification” or “replacement”,
the relevant text in Part 1 is to be adapted accordingly.
NOTE 2 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including
those in a replaced clause or subclause;

– additional annexes are lettered AA, BB, etc.
NOTE 3 The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
notes: in small roman type.
–
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
A list of all parts of the IEC 60335 series, under the general title: Household and similar
electrical appliances – Safety, can be found on the IEC website.

– 6 – IEC 60335-2-72:2012 © IEC 2012

The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be

• reconfirmed,
• withdrawn,
• replaced by a revised edition, or

• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its

provisions is entrusted to appropriately qualified and experienced persons.

This standard recognizes the internationally accepted level of protection against hazards such

as electrical, mechanical, thermal, fire and radiation of appliances when operated as in

normal use taking into account the manufacturer's instructions. It also covers abnormal

situations that can be expected in practice and takes into account the way in which

electromagnetic phenomena can affect the safe operation of appliances.

This standard takes into account the requirements of IEC 60364 as far as possible so that
there is compatibility with the wiring rules when the appliance is connected to the supply
mains. However, national wiring rules may differ.
If an appliance within the scope of this standard also incorporates functions that are covered
by another part 2 of IEC 60335, the relevant part 2 is applied to each function separately, as
far as is reasonable. If applicable, the influence of one function on the other is taken into
account.
When a part 2 standard does not include additional requirements to cover hazards dealt with
in Part 1, Part 1 applies.
NOTE 1 This means that the technical committees responsible for the part 2 standards have determined that it is
not necessary to specify particular requirements for the appliance in question over and above the general
requirements.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
NOTE 2 Horizontal and generic standards covering a hazard are not applicable since they have been taken into
consideration when developing the general and particular requirements for the IEC 60335 series of standards. For
example, in the case of temperature requirements for surfaces on many appliances, generic standards, such as
ISO 13732-1 for hot surfaces, are not applicable in addition to Part 1 or part 2 standards.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of the standard if, when examined and tested, it is found to
have other features that impair the level of safety covered by these requirements.
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of
the requirements and, if found to be substantially equivalent, may be considered to comply
with the standard.
– 8 – IEC 60335-2-72:2012 © IEC 2012

HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –

SAFETY –
Part 2-72: Particular requirements for floor treatment machines

with or without traction drive, for commercial use

1 Scope
This clause of Part 1 is replaced by the following.
This International Standard deals with the safety of powered ride-on and powered walk-
behind machines intended for commercial indoor or outdoor use for the following
applications:
– sweeping,
– scrubbing,
– wet or dry pick-up,
– polishing,
– application of wax, sealing products and powder based detergents,
– shampooing
of floors with an artificial surface.
Their cleaning motion is more linear than lateral or periodic.
NOTE 101 By contrast, the cleaning motion of machines covered by IEC 60335-2-67 is more lateral or periodic
than linear.
NOTE 102 This standard applies to machines for commercial use. The following list, although not
comprehensive, gives an indication of locations that are included in the scope:
– public use areas such as hotels, schools, hospitals;
– industrial locations, for example factories and manufacturing shops;
– retail outlets, for example shops and supermarkets;
– business premises, for example offices and banks;
– all uses other than normal housekeeping purposes.

They may be equipped with a traction drive system. The following power systems are
covered:
– internal combustion engines,
– mains powered motors up to a rated voltage of 250 V for single-phase appliances and
480 V for other appliances,
– battery powered motors.
Battery powered machines may be equipped with a built-in battery charger.
This standard does not apply to
– floor treatment appliances for household use according to IEC 60335-2-10;
– floor treatment machines for commercial use according to IEC 60335-2-67;
– spray extraction machines for commercial use (IEC 60335-2-68);

– wet and dry vacuum cleaners, including power brush, for commercial use

(IEC 60335-2-69);
– road sweepers;
NOTE 103 In Europe, EN 13019 covers road sweepers.

– machines designed for use on slopes with a gradient exceeding 20 %;

– machines equipped with a power take-off (PTO);

– machines designed for use in corrosive or explosive environments (dust, vapour or gas);

– machines designed for picking up hazardous dusts (as defined in IEC 60335-2-69),

inflammable substances, or glowing particles;

– machines designed for use in vehicles or on board of ships or aircraft.
NOTE 104 Attention is drawn to the fact that
– in many countries additional requirements on the safe use of the equipment covered can be specified by the
national health authorities, the national authorities responsible for the protection of labour, the national water
supply authorities and similar authorities;
– ride-on machines designed for transport over public roads can be subject to additional requirements (e.g.
lighting, license plate etc.).
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
IEC 60312-1, Vacuum cleaners for household use – Part 1: Dry vacuum cleaners – Methods
for measuring the performance
IEC 62061, Safety of machinery – Functional safety of safety-related electrical, electronic and
programmable electronic control systems
ISO 3411, Earth moving machinery – Human physical dimensions of operators and minimum
operator space envelope
ISO 5353, Earth-moving machinery, and tractors and machinery for agriculture and forestry –
Seat index point
ISO 6344-2, Coated abrasives – Grain size analysis – Part 2: Determination of grain size
distribution of macrogrits P12 to P220

ISO 13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General
principles for design
ISO 13857, Safety of machinery – Safety distances to prevent hazard zones being reached by
the upper and lower limbs
ISO 25119 (all parts), Tractors and machinery for agriculture and forestry – Safety-related
parts of control systems
Replacement:
IEC 60068-2-78:2001, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat,
steady state
– 10 – IEC 60335-2-72:2012 © IEC 2012

3 Terms and definitions
This clause of Part 1 is applicable except as follows.

3.1.9 Replacement:
normal operation
conditions under which the machine is operated in normal use, as intended by the

manufacturer
It denotes the load corresponding to the rated power input or the highest obtainable load of
all particular loads of the various functions that can be operated at the same time in

accordance with the manufacturer’s instructions. For machines provided with a seat or an

operator platform, a mass of 75 kg secured in position at the appropriate height is used to
simulate the operator in the most unfavourable position.
Socket-outlets for accessories are loaded with a resistive load in accordance with the
marking.
Operational functions include all treatment and driving functions.
The normal operation related to the operational functions is specified in 3.1.9.101 to
3.1.9.103:
3.1.9.101 Scrubbing and sweeping machines are operated on a surface of hydraulically
pressed concrete paving slabs (see Annex AA) intermittently at least 30 min switched on, and
for a period of 5 min switched off.
An alternative is a smooth concrete area of a surface consistency comparable with
hydraulically pressed concrete paving slabs.
3.1.9.102 Polishing and dry buffing machines are operated as follows.
PVC- or comparable flooring surfaces are considered to be suitable for establishing normal
operation. The peak of input occurring during the drying process of the chemical applied to
treat the surface is not taken as normal operation but is averaged by extending
measurements over a period of at least 10 min.
3.1.9.103 Carpet shampooers are operated on a test surface consisting of a carpet, in
accordance with IEC 60312-1, the carpet being fastened to the floor.
Prior to testing, the brush of the shampooing machine is conditioned by operating it for 15 min
on a clean, dry concrete surface. After running on the concrete surface, the brush is

immersed in a shampoo solution for at least 30 min.
The solution tank is filled and the machine is operated over a period of 10 min.
3.101
traction drive
system used to propel the machine, e.g. by powered wheels
Traction by the effect of rotating brushes is not included.
3.102
walk-behind machine
machine with or without a traction drive designed to be controlled by the operator walking
behind the machine
It may be equipped with a detachable sulky.

3.103
ride-on machine
machine with a traction drive and with an operator seat or a platform on which the operator

is sitting/standing during operation

3.104
sulky (trailer)
removable trailing seat or stand-on platform with wheels or skids designed to carry an

operator in a sitting or standing position, while controlling a walk-behind machine with

traction drive
3.105
wet cleaning machine
machine for applying and sucking up liquids
3.106
water-suction cleaning machine
machine for sucking up liquids
3.107
motorized cleaning head
hand-held or hand-guided cleaning device connected to the machine, with an integrated
electrical motor
Note 1 to entry: The main cleaning head permanently attached is not regarded as a motorized cleaning head.
3.108
hopper
container to store picked up debris
3.109
parking brake
means, actuated by the operator in the normal operating position, to prevent a stationary
machine from moving
3.110
service brake
means for decelerating and stopping a machine, with a traction drive, from its ground travel
speed
3.111
operator presence control
OPC
control device that automatically interrupts the power, e.g. to a drive or an engine, when the
operator's actuating force is removed
Note 1 to entry: Such devices can be, for example, continuous action controls ("hold-to-run" controls) or seat
switches.
3.112
guard
part of the machine specifically designed to provide protection by means of a physical barrier,
such as, for example, a casing, a shield, a cover, a screen, a door, an enclosure or a fence;
other parts of the machine that fulfil a primarily operational function, such as, for example, the
frame of the machine, may also fulfil a protective function but are not referred to as guards
Note 1 to entry: Three main kinds of guards can be distinguished: fixed guards, interlocking moveable guards
and adjustable guards. Interlocking movable guards are required where frequent access is envisaged, while fixed
guards can be used where frequent access is not envisaged.

– 12 – IEC 60335-2-72:2012 © IEC 2012

3.113
operator
person installing, operating, adjusting, cleaning, moving, or performing user maintenance on

the machine
3.114
gross vehicle weight
GVW
maximum allowable fully laden weight of the machine and its payload, as ready for use

Note 1 to entry: See 5.102 for further test conditions.

3.115
test solution
solution which consists of 20 g of NaCl and 1 ml of a solution of 28 % by mass of dodecyl
sodium sulphate in each 8 l of water
Note 1 to entry: The chemical designation of dodecyl sodium sulphate is C H NaSO .
12 25 4
3.116
level surface
plane with a gradient up to and including 2 %
3.117
slope
inclined plane with a gradient greater than 2 % but not exceeding 20 %
3.118
maximum cleaning gradeability
maximum gradient according to manufacturer's instruction and as indicated on the machine,
on which the machine can be used safely for cleaning purposes
3.119
maximum transport gradeability
maximum gradient according to manufacturer's instruction, on which the machine can be used
safely for transport purposes
3.120
built-in charger
charger mounted on or into the machine and designed to operate only on or into the machine.
Note 1 to entry: Built-in chargers can also be called on-board chargers.

3.121
built-in charger with power supply function
component intended to provide power for charging, operation or both
3.122
commercial use
intended use of machines covered by this standard, i.e. not intended for normal housekeeping
purposes by private persons but which may be a source of danger to the public
I.e. in particular that
– the machines may be used by cleaning contractors, cleaning staff, etc.;
– they are used in commercial or public premises (i.e. offices, shops, hotels, hospitals,
schools, etc.) or in industrial (plants etc.) and light industrial (workshops etc.)
environments.
Note 1 to entry: Commercial use is also called professional use.

4 General requirement
This clause of Part 1 is applicable except as follows:

Replacement of the first paragraph by the following:

Machines shall be constructed so that they function safely so as to cause no danger to
persons or surroundings during normal use, even in the event of carelessness, and during

installation, adjusting, maintenance, cleaning, repairing or transportation.

Addition:
For the purposes of this standard, the term ‘appliance’ as used in Part 1 is to be read as
‘machine’.
5 General conditions for the tests
This clause of Part 1 is applicable except as follows.
5.101 The test solution is to be stored in a cool atmosphere and used within seven days
after its preparation.
5.102 The GVW includes, if applicable, full clean water tanks, empty dirty water tanks (half
full for recycling systems), empty dust bags, hopper loaded at rated capacity, largest
recommended batteries, all options such as cords, hoses, wands, cleaning agents, brooms
and brushes.
For ride-on machines, the GVW includes a standard operator, weighing 75 kg.
5.103 Liquid containers of machines for wet scrubbing and shampooing are filled to the
highest level indicated by the manufacturer.
5.104 Machines that are designed to have a sulky are tested with the sulky including the
weight of a standard operator (75 kg) or without the sulky, whichever is the most
unfavourable condition.
6 Classification
This clause of Part 1 is applicable except as follows.

6.1 Replacement:
Machines shall be one of the following classes with respect to the protection against electric
shock:
– class I,
– class II, or
– class III.
Compliance is checked by inspection and by the relevant tests.

– 14 – IEC 60335-2-72:2012 © IEC 2012

6.2 Addition:
Mains supplied and battery powered machines for indoor use intended for dry cleaning only
shall be at least IPX0. Other machines shall be at least IPX3.

7 Marking and instructions
This clause of Part 1 is applicable except as follows.

th
7.1 Replacement of the 4 dashed item as follows:

– the business name and address of the manufacturer and, if applicable, his authorized
representative; any address shall be sufficient to ensure postal contact;
Addition:
Machines shall be marked in addition with the following:
– serial number, if any;
– designation of the machine and series or type, allowing the technical identification of the
product. This may be achieved by a combination of letters and/or numbers;
NOTE 101 Designation of machine, series or type includes the model or type reference as required in Part 1.
– year of construction, i.e. the year in which the manufacturing process is completed;
NOTE 102 The year of construction can be part of the serial number.
– GVW of the machine, in kg;
– the symbol indicating the maximum cleaning gradeability, with the value of x.
NOTE 103 I.e. the machine might be able to drive on a higher gradient (maximum transport gradeability).
This additional information can be given also in the instructions for use.
Machines intended to be used indoors and powered by internal combustion engines shall be
marked in addition with the symbol according to Figure 106. It is acceptable to show this
symbol in monochrome colour.
7.1.101 Motorized cleaning heads shall be marked with
– rated voltage or rated voltage range in volts;
– rated power input in watts;
– name, trade mark or identification mark of the manufacturer or responsible vendor;
– model or type reference;
– mass of the most usual configuration in kg.
Motorized cleaning heads for water-suction cleaning appliances, except those of class III
construction having a working voltage up to 24 V shall be marked with symbol
IEC 60417-5935 (2002-10).
NOTE This symbol is an information sign and, except for the colours, the rules of ISO 3864-1 apply.
Compliance is checked by inspection.
7.1.102 Socket-outlets for accessories shall be marked with the maximum load in watts on
the socket-outlet or close to it.
Compliance is checked by inspection.

7.6 Addition:
x %
maximum cleaning gradeability ‘x’

[symbol IEC 60417-5935 (2002-10)] motorized cleaning head for water-

suction cleaning
7.12 Modification:
th
Replace the 4 paragraph by the following text.
This machine is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge.
Addition:
The front cover of the instructions shall include the substance of the following warning:
CAUTION Read the instructions before using the machine.
This wording may be replaced by symbols ISO 7000-0434 (2004-01) and either
ISO 7000-1641 (2004-01) or ISO 7000-0790 (2004-01).
The instructions shall contain at least the following:
– the business name and full address of the manufacturer and, if applicable, his authorized
representative;
– designation of series or type of the machine as marked on the machine itself, except for
the serial number;
NOTE 101 The designation of series or type can be abstracted, as long as the identification of the product is
ensured.
– the general description of the machine;
– the GVW of the machine in kilograms;
– the transportation weight of the machine in kilograms, which includes the batteries but
excludes options (e.g. driver cabin, FOPS, second and third side broom, front mounted
sweeping attachment for scrubbers), fresh water (in case of scrubbers or combined

machines), and the weight of a standard operator (75 kg);
– the intended use of the machine and the auxiliary equipment as covered by the scope of
this standard;
NOTE 102 Examples of auxiliary equipment are suction nozzles, spray bars, and lights.
– the meaning of the symbols used on the machine and in the instructions;
– drawings, diagrams, descriptions and explanations necessary for the safe use,
maintenance and repair of the machine and for checking its correct functioning;
– technical data including the markings on the machine;
– information regarding putting into service, safe operation, handling, transportation, and
storage of the machine taking into account its GVW;
– instructions to enable adjustment and maintenance to be carried out safely, including the
protective measures that should be taken during these operations;

– 16 – IEC 60335-2-72:2012 © IEC 2012

– the conditions in which the machine meets the requirement of stability during use,

transportation, assembly, dismantling when out of service, testing or foreseeable

breakdowns;
– the procedure to be followed to prevent unsafe situations in the event of accident (e.g.

contact with or spillage of detergents, battery acid, fuel or oil) or equipment breakdown

(such as flat tire or component failure);

– the substance of the following:

This machine is intended for commercial use, for example in hotels, schools, hospitals,

factories, shops, offices and rental businesses.

The instructions shall indicate the type and frequency of inspections and maintenance

required for safe operation, including preventive maintenance measures. They shall, if
applicable, give the specifications of the spare parts if they affect the health and safety of the
operator.
In addition, the instructions shall give the following information, if applicable:
– for battery powered machines, instructions regarding the precautions to be taken for safe
charging;
– precautions to be taken when changing brushes or other attachments;
– information on the detergents or other liquids that may be used including the choice and
use of personal protective equipment (PPE);
– essential characteristics of auxiliary equipment which may be fitted to the machine;
– information regarding safe disposal of batteries;
– information on the seat adjustment and related parts;
– if split rims are used for pneumatic tyres, instructions shall be given for the safe change of
tyres.
For machines having a traction drive and a GVW exceeding 100 kg, the instructions shall
also include the substance of the following:
– in order to prevent unauthorized use of the machine, the power source shall be switched
off or locked, for example by removing the key of the main switch or the ignition key.
For machines with a traction drive that are designed to be used on slopes, the instructions
shall also include the substance of the following:
– machines left unattended shall be secured against unintentional movement.
7.12.101 The instructions shall include warnings concerning ways in which the machine shall
not be used, which in the experience of the manufacturer are likely to occur. At least, it shall

include the substance of the following warnings, if applicable.
– WARNING Operators shall be adequately instructed on the use of these machines.
– WARNING Always ensure that the safety support is installed before working beneath
hopper.
– WARNING This machine is for dry use only.
– WARNING Do not inhale exhaust gas fumes. Only use indoors when adequate ventilation
is provided, and when a second person has been instructed to look after you.
– CAUTION This machine is for indoor use only.
– CAUTION
...