IEC 63241-1:2023

Electric motor-operated tools - Dust measurement procedure - Part 1: General requirements

IEC 63241-1:2023 specifies general requirements for the dust measurement of electric motor-operated tools supplied from mains or from batteries. This document applies to those tools with and without a dust extraction unit where dust such as mineral dust containing silica or wood dust is expected.

Outils électroportatifs à moteur - Procédure de mesure de la poussière - Partie 1 : Exigences générales

IEC 63241-1:2023 spécifie les exigences générales pour le mesurage des poussières des outils à moteur électrique alimentés par secteur ou par batteries. Le présent document s'applique aux outils avec et sans unité de dépoussiérage où des poussières telles que des poussières minérales contenant de la silice ou de la poussière de bois sont attendues.

General Information

• Status: Published
• Publication Date: 13-Jul-2023
• ICS: 25.140.30 - Hand-operated tools
• Technical Committee: TC 116 - Safety of motor-operated electric tools
• Drafting Committee: WG 11 - TC 116/WG 11
• Current Stage: PPUB - Publication issued
• Start Date: 14-Jul-2023
• Completion Date: 07-Jul-2023

Overview

IEC 63241-1:2023 is an international standard developed by the International Electrotechnical Commission (IEC). It specifies the general requirements for dust measurement procedures concerning electric motor-operated tools. This standard applies to tools powered by mains electricity or batteries, including those with or without dust extraction units. It particularly addresses dust types such as mineral dust containing silica and wood dust, common in various industrial and construction settings.

The primary objective of IEC 63241-1:2023 is to establish a standardized testing procedure for measuring dust concentrations emitted from power tools under controlled, reproducible conditions. This enables manufacturers, testers, and regulatory bodies to assess dust emissions accurately, promoting consistent safety and health evaluations.

Key Topics

• Scope and Application:
  The standard applies to electric motor-operated tools used in environments where inhalable and respirable dust emissions are a concern. It is relevant for tools powered either by the electrical mains or detachable/separable battery packs.

• Dust Types and Definitions:
  Defines important terminology such as inhalable dust, respirable dust, dust extraction units, dust samplers, and quartz (crystalline silica). Dust fractions are categorized based on their ability to penetrate the respiratory system, per ISO 7708:1995.

• Test Environment and Procedures:
  Specifies testing in a controlled test room environment compliant with EN 1093-9:1998 and its amendment EN 1093-9:1998/A1:2008.
  Includes requirements for test room conditions, equipment setup, and appropriate test cycles and rest periods to simulate real-world tool usage.

• Instrumentation:
  Details the required instrumentation for measuring both dust emissions (material concentrations) and operating/climatic conditions during tests to ensure precise and reproducible results.

• Measurement Objectives:
  The procedure is designed to measure dust concentrations to:

  • Declare dust emissions from tools.
  • Compare dust emissions between products of the same category.
  • Support preliminary workplace dust exposure assessments.

• Accuracy and Consistency:
  Emphasizes standardized measurement methodologies to guarantee the comparability of results between different laboratories and compliance with relevant safety norms.

Applications

IEC 63241-1:2023 serves a critical role in industries where electric motor-operated tools are used extensively and concerns about dust exposure exist:

• Workplace Safety Assessments:
  Enables health and safety professionals to evaluate potential employee exposure to hazardous dust during routine use of power tools.

• Product Certification and Compliance:
  Manufacturers can test and document dust emissions in accordance with international standards to support product safety claims and regulatory approvals.

• Dust Control Technology Development:
  Facilitates development and validation of dust extraction units and other dust mitigation technologies by providing measurement benchmarks and test methods.

• Comparative Product Analysis:
  Assists buyers, testers, and regulatory authorities in comparing dust emissions across different tools to promote safer product selections.

Related Standards

• EN 1093-9:1998 and EN 1093-9:1998/A1:2008:
  Standards referenced for the test room conditions and pollutant concentration parameters relevant to airborne hazardous substances measurement.

• EN 13205 (all parts):
  Addresses workplace exposure and assessment of sampler performance for measuring airborne particle concentrations.

• ISO 7708:1995:
  Provides definitions of particle size fractions for health-related sampling, fundamental for categorizing dust measured under IEC 63241-1.

• IEC 63241 Series:
  Part 1 defines general measurement requirements. Supplementing parts (e.g., IEC 63241-2 and IEC 63241-3) specify additional or modified requirements tailored to specific types of electric motor-operated tools.

---

IEC 63241-1:2023 helps ensure that dust emissions produced by electric motor-operated tools are measured in a standardized, scientifically rigorous manner. This enhances workplace safety, supports regulatory compliance, and aids manufacturers in creating cleaner, safer tools. Implementing this standard contributes to reducing health risks posed by inhalable and respirable dust in industrial and construction environments.

Standards Content (Sample)

IEC 63241-1 ®
Edition 1.0 2023-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric motor-operated tools – Dust measurement procedure –
Part 1: General requirements
Outils électroportatifs à moteur – Procédure de mesure de la poussière –
Partie 1: Exigences générales
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IEC 63241-1 ®
Edition 1.0 2023-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electric motor-operated tools – Dust measurement procedure –

Part 1: General requirements
Outils électroportatifs à moteur – Procédure de mesure de la poussière –

Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.140.30 ISBN 978-2-8322-7090-5

– 2 – IEC 63241-1:2023 © IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Test procedure . 8
4.1 General . 8
4.2 Test room and equipment . 8
4.3 Operating conditions . 9
4.4 Acceptance criteria . 11
5 Instrumentation . 11
5.1 Instrumentation for measuring operating conditions . 11
5.2 Instrumentation for measuring climatic conditions . 11
6 Information to be reported . 12

Figure 1 – Positions of dust samplers and workpiece for the measurement of only one
dust fraction . 13
Figure 2 – Positions of dust samplers and workpiece for the measurement of two dust
fractions . 14

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC MOTOR-OPERATED TOOLS –
DUST MEASUREMENT PROCEDURE –
Part 1: General requirements
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
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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.
IEC 63241-1 has been prepared by IEC technical committee 116: Safety of motor-operated
electric tools. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
116/655/FDIS 116/666/RVD
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
The language used for the development of this International Standard is English.
This document is to be used in conjunction with the appropriate parts of IEC 63241-2 or
IEC 63241-3, which contain clauses that supplement or modify the corresponding clauses in
this document to provide the relevant requirements for each type of product.

– 4 – IEC 63241-1:2023 © IEC 2023
The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
notes: in small roman type.
–
The terms defined in Clause 3 are printed in bold typeface.
A list of all parts of the IEC 63241 series, under the general title: Electric motor-operated tools –
Dust measurement procedure, can be found on the IEC website.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
NOTE The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations may need a transitional period following publication of a new, amended or revised IEC publication in
which to make products in accordance with the new requirements and to equip themselves for conducting new or
revised tests.
It is the recommendation of the committee that the content of this publication be adopted for implementation nationally
not earlier than 36 months from the date of publication.

INTRODUCTION
Inhalable dust emitted by electric motor-operated tools can present a hazard to the operator
and other exposed persons.
Therefore, this document specifies a procedure to measure the dust concentration produced
by an electric power tool under standardized conditions representing typical applications.
However, the dust concentration during actual use of the power tool can differ from the dust
concentration measured in accordance with this document depending on the ways in which the
tool is used.
The results of dust measurements can be used
– for a declaration of the dust emission;
– for comparing the dust emission from tools of the same type; or
– in a preliminary assessment of dust exposure at a workplace.
For all purposes, it is important to specify measurement procedures with known accuracy so
that the results of measurements taken by different laboratories can be compared.
The measurements of dust concentration are made in accordance with EN 1093-9:1998 and
EN 1093-9:1998/A1:2008 for the test room.

– 6 – IEC 63241-1:2023 © IEC 2023
ELECTRIC MOTOR-OPERATED TOOLS –
DUST MEASUREMENT PROCEDURE –
Part 1: General requirements
1 Scope
This document specifies general requirements for the dust measurement of electric motor-
operated tools supplied from mains or from batteries. This document applies to those tools with
and without a dust extraction unit where dust such as mineral dust containing silica or wood
dust is expected.
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.
EN 1093-9:1998, Safety of machinery – Evaluation of the emission of airborne hazardous
substances – Part 9: Pollutant concentration parameter, room method
EN 1093-9:1998/A1:2008
EN 13205 (all parts), Workplace exposure – Assessment of sampler performance for
measurement of airborne particle concentrations
ISO 7708:1995, Air quality – Particle size fraction definitions for health-related sampling
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
accessory
device that is attached only to the output mechanism of the tool
3.2
detachable battery pack
battery which is contained in a separate enclosure from the battery tool and is intended to be
removed from the tool for charging purposes
3.3
dust
distribution of solid materials in gases, generated by mechanical processes
Note 1 to entry: According to ISO 7708:1995, two size categories are to be differentiated: the inhalable dust and
the respirable dust fraction.
3.4
dust extraction unit
suction device, connected to the dust/chip outlet of the tool or a dust capturing attachment, for
collecting dust emitted from the tool during working
Note 1 to entry: A dust extraction unit can be either an external one (such as a dust extractor or a centralized
exhaust system) or an integral one.
3.5
dust sampler
device for collecting the respirable dust portion and inhalable dust portion by aspirating a
measured amount of dust-laden air and deposition of the dust on an integrated filter
3.6
fully charged battery
battery charged to the maximum state of charge permitted by the battery charging system
intended for use with the tool
3.7
inhalable dust
dust fraction which can be taken up by the respiratory system in accordance with
ISO 7708:1995
3.8
maximum air flow rate
highest air flow rate created by an external dust extraction unit, including the specified hose,
with no tool attached
3.9
maximum vacuum
highest vacuum level created by an external dust extraction unit, including the specified hose
with the end of the hose blocked and with no bypass
3.10
quartz
mineral derived from crystalline silica
3.11
rated frequency
frequency assigned to the tool by the manufacturer
3.12
rated frequency range
frequency range assigned to the tool by the manufacturer
Note 1 to entry: It is expressed by its lower and upper limits.
3.13
rated voltage
voltage assigned to the tool by the manufacturer
Note 1 to entry: For three-phase supply, it is the voltage between phases.
3.14
rated voltage range
voltage range assigned to the tools by the manufacturer
Note 1 to entry: It is expressed by its lower and upper limits.

– 8 – IEC 63241-1:2023 © IEC 2023
3.15
respirable dust
dust fraction which can reach the alveoli and bronchia in accordance with ISO 7708:1995
3.16
separable battery pack
battery which is contained in a separate enclosure from the battery tool and is connected to the
battery tool by a cord
4 Test procedure
4.1 General
Tests shall be performed under working conditions, including appropriate rest periods, in a test
room similar to the one used in EN 1093-9:1998 and EN 1093-9:1998/A1:2008, and
measurements of dust emission shall be made in accordance with EN 1093-9:1998 and
EN 1093-9:1998/A1:2008.
The inhalable dust shall be measured and analysed. For tools intended to be used with
materials likely to contain quartz, also the respirable dust shall be measured and analysed.
The operator shall be skilled and able to operate the machine properly, i.e. the operator shall
be experienced in the use of the tool.
NOTE Practical tests have shown that the variation of the results can be reduced
– when the distance between the work surface and the operator is kept constant,
– when the posture changes of the operator are minimized, and
– when the posture of the operator is close to real working conditions during the test.
4.2 Test room and equipment
The tests are carried out in a test room that fulfils the following criteria:
– no other sources of fixed air-polluting material in the room;
– no room ventilation during the dust measurement;
– size of the room (200 ± 20) m with a height between 3,0 m and 4,5 m;
– large enough to ensure a distance between the tool and the walls of at least 2,0 m;
NOTE 1 A smaller distance can lead to higher values of the measured dust concentration.
NOTE 2 The dimensions of the test room to measure dust concentration are in accordance with
EN 1093-9:1998 and EN 1093-9:1998/A1:2008. This test room size has been shown to provide consistent dust
concentration measurement results and also results in measured dust concentrations that are in the upper
quartile of typical workplace applications.
– apart from the equipment required for the test, the test room is as empty as possible, so
that the 200 m requirement is not compromised and no unnecessary surfaces are created.
During the test, dust samplers are carried by the operator on the upper chest zone. If the
inhalable dust or the respirable dust is measured, one dust sampler shall be used on each
side of the upper chest zone, see Figure 1. In case that during the measurement of the
respirable dust also the inhalable dust fraction shall be evaluated, an additional dust sampler
for the inhalable dust shall be used and placed as close as possible below one of the other
two dust samplers for respirable dust, see Figure 2. If the tests are done by robotic means,
the dust sampler(s) shall be placed at a place to replicate the upper chest zone of an operator.
The dust sampler(s) shall remain working throughout the entire time of each test as defined
in 4.3.
For those tools where the workpiece is placed on a bench, as specified in the relevant part of
IEC 63241-2 or IEC 63241-3, the vertical distance between the upper surface of the workpiece
and the intake openings of the dust samplers carried by the standing operator on the upper
chest zone shall be h = (600 ± 50) mm, see Figure 1 and Figure 2. The distance is to be
established and measured before the tests are started.
NOTE 3 The required vertical distance is influenced by the height of the operator (e.g. use of a support for the
operator), height of the table, thickness of the workpiece and the position of the dust samplers on the operator.
The dust samplers shall comply with EN 13205 (all parts) and shall be suitable for the
determination of the concentration of inhalable dust and, if required, of respirable dust, as
specified in ISO 7708:1995. The material of the filters used in the dust samplers shall be of
cellulose nitrate with a mesh size of 8 µm. Alternatively, the material for filters for inhalable
dust may be glass fibre grade 85/90.
NOTE 4 Glass fibre filters can help to ensure the necessary volume flow since their flow resistance is lower than
that of cellulose nitrate filters.”
The test room, the air inside the test room and the equipment shall be cleaned before each test,
so that previous tests have no influence on the test result.
NOTE 5 Whether the air in the test room is clean, typically can be monitored by using an appropriate optical dust
monitor (e.g. a laser particle counter).
4.3 Operating conditions
During the tests, the ambient temperature shall be 15 °C to 30 °C and the relative ambient
humidity shall be a maximum of 75 %.
For tools to be used in combination with an external dust extraction unit, the tool is connected
to the dust extraction unit as specified by the manufacturer. If possible, the position of the
tool, the operator, or both shall be arranged so that the cooling air outlet is not directed towards
the dust samplers.
NOTE 1 The cooling air outlet of the tool can have an influence on the result if directed towards the dust samplers.
Every test consists of five test cycles of 10 min working time and 2 min rest time each, for a
total test time of 1 h. For battery-operated tools that are not able to operate for 10 min working
time, the test may be split into 10 test cycles of 5 min working time and 1 min rest time. Every
1 h test shall start with an empty dust extraction unit equipped with a new filter. During each
test, a given task shall be achieved as specified in the relevant part of IEC 63241-2 or
IEC 63241-3. Depending on the detection limit of the used dust sampler(s) and of the dust
concentration to be determined, a total test time longer than 1 h may be necessary. This shall
be achieved by adding a sufficient number of additional test cycles, so that the relative detection
limit of the dust sampler(s) is lower than the dust concentration to be determined. The task
specified in the relevant part of IEC 63241-2 or IEC 63241-3 shall be adapted to the altered test
time.
The dust extraction unit shall be maintained (e.g. filter cleaning) and operated as specified by
the manufacturer’s instruction manual, and it shall be placed in the test room.
Emptying of an external dust extraction unit shall be done in accordance with the instruction
manual of the external dust extraction unit, but at the earliest after three test cycles. Any
emptying shall be done during a rest period of a test cycle and outside the test room.
NOTE 2 Examples of instructions in a manual are requests to obey the warning signal of a class M dust extraction
unit or to keep the air flow in a certain range.
NOTE 3 Emptying after three test cycles is understood as the earliest opportunity for emptying, but not as a regular
action at that point of time.
– 10 – IEC 63241-1:2023 © IEC 2023
Integral dust extraction units are changed or emptied in accordance with the instruction
manual. This may be done at shorter intervals. If necessary, the test may be split into 10 test
cycles of 5 min working time and 1 min rest time. Changing or emptying of the dust container
shall be done inside of the test room.
It shall be ensured that
– the exhaust air of an external dust extraction unit is not directed towards the dust
samplers; and
– the dust extraction unit is not moved more than the work process requires during the test.
If the instruction manual of the power tool requires a certain air flow rate or an air flow rate
range, then this air flow rate or the minimum value of an air flow rate range shall be adjusted
for the dust measurement within a tolerance of 0 % to 10 %.
The tool shall be operated under working conditions. The material used for the test shall be
appropriate for the intended use of the tool. The tool bit, cutter, abrasive, etc. to be used shall
be as specified by the manufacturer for the material to be worked.
Tools for a.c. only are tested with a.c. at rated frequency, if marked, and those for a.c. or d.c.
are tested with the supply that results in the highest tool output speed that does not exceed the
recommended speed of the accessory in accordance with the manufacturer’s instructions.
Tools for a.c. which are not marked with rated frequency, or marked with a rated frequency
range of 50 Hz to 60 Hz or with 50/60 Hz, are tested with either 50 Hz or 60 Hz, whichever
results in the highest tool output speed that does not exceed the recommended speed of the
accessory in accordance with the manufacturer’s instructions.
Tools are tested at rated voltage. Tools having more than one rated voltage or having a rated
voltage range are tested at the voltage that results in the highest tool output speed that does
not exceed the recommended speed of the accessory in accordance with the manufacturer’s
instructions.
All test parameter settings shall be made with a tolerance of ±2 %.
NOTE 4 Examples of test parameter settings include voltage, current and time period.
The tool and the workpiece shall be placed inside the test room so that the distance between
the tool and the walls and between the tool and the ceiling is at least 2,0 m.
Three tests shall be carried out by one operator. The result shall be one concentration value
for each test and dust type. The mean value of the two dust samplers for the same fraction at
the operator shall be taken. The dust sampler(s) shall operate during the entire time needed
for each of the three tests. The operating conditions are kept stable throughout the test.
For battery-operated tools:
Prior to the test, all batteries shall be fully conditioned as follows: batteries shall be fully
discharged and then charged in accordance with the manufacturer’s instructions. The sequence
shall be repeated one more time with an interval of at least 2 h after each discharge.
The end-of-discharge voltages for common cell chemistries are as follows:
– 0,9 V/cell for nickel cadmium or nickel metal-hydride batteries;
– 1,75 V/cell for lead-acid batteries;
– 2,5 V/cell for lithium-ion batteries, unless the manufacturer specifies a different voltage.

After removal from the charging system and before starting a test, the fully charged battery
shall rest for at least 2 h but no more than 6 h at an ambient temperature of (20 ± 5) °C.
Each operator shall start each test cycle of 10 min or 5 min working time, as applicable, with a
fully charged battery.
For tools with detachable battery packs or separable battery packs, the tests are conducted
with the battery with the highest amp-hour capacity in accordance with the manufacturer’s
instructions.
4.4 Acceptance criteria
The coefficient of variation C of a test series, defined as the ratio of the standard deviation, of
v
a series of measurement values and the mean values of series shall be determined.
s
R
C =
v
c
The standard deviation s is calculated as follows:
R
N
s ()cc−
R ∑ i
N−1
i=1
where
N is the number of tests (N = 3);
c is the concentration value of one test;
i
c is the mean value (average concentration value of three tests).
If the coefficient of variation C of the three concentration values, recorded for each series, is
v
less than 0,5, the results are accepted.
5 Instrumentation
5.1 Instrumentation for measuring operating conditions
The voltage at the plug of the cable or cord of mains-powered tools is measured with voltmeters
having an accuracy of ±1,5 %.
The voltage at the battery terminals of battery-powered tools is measured with voltmeters
having an accuracy of ±1,5 %.
All other electrical measurements shall be made with an instrument accuracy of ±5 %.
Instruments for measuring voltage shall have an input resistance of at least 1 MΩ with a
maximum parallel capacitance of 150 pF.
5.2 Instrumentation for measuring climatic conditions
The temperature is determined with instruments having an accuracy of ±1 °C.
The relative ambient humidity is determined with instruments having an absolute accuracy
of ±2 % within the measuring range.
=
– 12 – IEC 63241-1:2023 © IEC 2023
6 Information to be reported
The test report shall include at least the following data:
a) details of the tool tested (i.e. manufacturer, model, type, etc.);
b) information about attachments or accessories used (such as type, manufacturer);
c) information about the material used for the test (such as type, manufacturer, composition);
d) operating and testing conditions (voltage, speed setting, etc.);
e) description of the dust extraction unit (e.g. type, hose data, operating data, maximum air
flow rate and maximum vacuum);
f) description of the test room, its dimensions and positions of the tool and the dust
sampler(s) during the test;
g) list and information of the measuring instruments used (such as type, manufacturer,
measuring procedure, detection limit of dust sampler systems);
h) environmental data (temperature, humidity);
i) for all tests and every operating condition required by the relevant part of IEC 63241-2:
calculated dust concentrations in mg/m for all dust samplers. Any result of one of the
three tests that has been determined below the detection limit shall be replaced by the
detection limit value;
j) for every operating condition required by the relevant part of IEC 63241-2 or IEC 63241-3:
mean value in mg/m , calculated from all dust samplers for the same dust fraction and all
three tests for the concentration of the inhalable dust and, if required by the relevant part
of IEC 63241-2 or IEC 63241-3, of the respirable dust;
k) uncertainty K in mg/m as an indication of the measured deviation from the mean value for
the dust concentration during the test, determined as follows:
Ks= 1,65
R
where s is the standard deviation;
R
l) measuring institution (e.g. laboratory, manufacturer);
m) date of measurement and name of the person responsible for the test;
n) additional remarks, if necessary;
o) information about the performance of the tool, as specified in the relevant part of
IEC 63241-2.
Key
1 dust samplers for inhalable dust or respirable dust on upper chest area
2 intake opening of dust sampler
3 workpiece
vertical distance between the upper surface of the workpiece on a bench and the intake openings of the
h
dust samplers
Figure 1 – Positions of dust samplers and workpiece
for the measurement of only one dust fraction

– 14 – IEC 63241-1:2023 © IEC 2023

Key
1 dust samplers for respirable dust on upper chest area
2 intake opening of dust sampler
3 additional dust sampler for the evaluation of inhalable dust
4 workpiece
h vertical distance between the upper surface of the workpiece on a bench and the intake openings of the
dust samplers
Figure 2 – Positions of dust samplers and workpiece
for the measurement of two dust fractions

___________
– 16 – IEC 63241-1:2023 © IEC 2023
SOMMAIRE
AVANT-PROPOS . 17
INTRODUCTION . 19
1 Domaine d'application . 20
2 Références normatives . 20
3 Termes et définitions . 20
4 Procédure d'essai . 22
4.1 Généralités . 22
4.2 Salle et matériel d'essai . 22
4.3 Conditions de fonctionnement . 23
4.4 Critères d'acceptation . 26
5 Instruments . 26
5.1 Instruments de mesure des conditions de fonctionnement . 26
5.2 Instruments de mesure des conditions climatiques . 26
6 Informations à consigner . 26

Figure 1 – Positions des dispositifs de prélèvement de poussière et de la pièce à
usiner pour le mesurage d’une seule fraction de poussière . 28
Figure 2 – Positions des dispositifs de prélèvement de poussière et de la pièce à
usiner pour le mesurage de deux fractions de poussière . 29

COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
OUTILS ÉLECTROPORTATIFS À MOTEUR –
PROCÉDURE DE MESURE DE LA POUSSIÈRE –

Partie 1: Exigences générales
AVANT-PROPOS
1) La Commission Électrotechnique Internationale (IEC) est une organisation mondiale de normalisation composée
de l'ensemble des comités électrotechniques nationaux (Comités nationaux de l’IEC). L’IEC a pour objet de
favoriser la coopération internationale pour toutes les questions de normalisation dans les domaines de
l'électricité et de l'électronique. À cet effet, l’IEC – entre autres activités – publie des Normes internationales,
des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au public (PAS) et des
Guides (ci-après dénommés "Publication(s) de l’IEC"). Leur élaboration est confiée à des comités d'études, aux
travaux desquels tout Comité national intéressé par le sujet traité peut participer. Les organisations
internationales, gouvernementales et non gouvernementales, en liaison avec l’IEC, participent également aux
travaux. L’IEC collabore étroitement avec l'Organisation Internationale de Normalisation (ISO), selon des
conditions fixées par accord entre les deux organisations.
2) Les décisions ou accords officiels de l’IEC concernant les questions techniques représentent, dans la mesure du
possible, un accord international sur les sujets étudiés, étant donné que les Comités nationaux de l’IEC intéressés
sont représentés dans chaque comité d’études.
3) Les Publications de l’IEC se présentent sous la forme de recommandations internationales et sont agréées
comme telles par les Comités nationaux de l’IEC. Tous les efforts raisonnables sont entrepris afin que l’IEC
s'assure de l'exactitude du contenu technique de ses publications; l’IEC ne peut pas être tenue responsable de
l'éventuelle mauvaise utilisation ou interprétation qui en est faite par un quelconque utilisateur final.
4) Dans le but d'encourager l'uniformité internationale, les Comités nationaux de l’IEC s'engagent, dans toute la
mesure possible, à appliquer de façon transparente les Publications de l’IEC dans leurs publications nationales
et régionales. Toutes divergences entre toutes Publications de l’IEC et toutes publications nationales ou
régionales correspondantes doivent être indiquées en termes clairs dans ces dernières.
5) L’IEC elle-même ne fournit aucune attestation de conformité. Des organismes de certification indépendants
fournissent des services d'évaluation de conformité et, dans certains secteurs, accèdent aux marques de
conformité de l’IEC. L’IEC n'est responsable d'aucun des services effectués par les organismes de certification
indépendants.
6) Tous les utilisateurs doivent s'assurer qu'ils sont en possession de la dernière édition de cette publication.
7) Aucune responsabilité ne doit être imputée à l’IEC, à ses administrateurs, employés, auxiliaires ou mandataires,
y compris ses experts particuliers et les membres de ses comités d'études et des Comités nationaux de l’IEC,
pour tout préjudice causé en cas de dommages corporels et matériels, ou de tout autre dommage de quelque
nature que ce soit, directe ou indirecte, ou pour supporter les coûts (y compris les frais de justice) et les dépenses
découlant de la publication ou de l'utilisation de cette Publication de l’IEC ou de toute autre Publication de l’IEC,
ou au crédit qui lui est accordé.
8) L'attention est attirée sur les références normatives citées dans cette publication. L'utilisation de publications
référencées est obligatoire pour une application correcte de la présente publication.
9) L’attention est attirée sur le fait que certains des éléments de la présente Publication de l’IEC peuvent faire l’objet
de droits de brevet. L’IEC ne saurait être tenue pour responsable de ne pas avoir identifié de tels droits de
brevets.
L’IEC 63241-1 a été établie par le comité d'études 116 de l'IEC: Sécurité des outils
électroportatifs à moteur. Il s’agit d’une Norme internationale.
Le texte de cette Norme internationale est issu des documents suivants:
Projet Rapport de vote
116/655/FDIS 116/666/RVD
Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant
abouti à l'approbation de cette Norme internationale.
La langue employée pour l'élaboration de cette Norme internationale est l'anglais.

– 18 – IEC 63241-1:2023 © IEC 2023
Le présent document doit être utilisé conjointement avec les parties appropriées de
l'IEC 63241-2 ou de l’IEC 63241-3, qui comportent des articles complétant ou modifiant les
articles correspondants du présent document, afin d'établir les exigences pertinentes pour
chaque type de produit.
Les caractères d'imprimerie suivants sont utilisés:
– exigences: caractères romains;
– modalités d'essai: caractères italiques;
– notes: petits caractères romains.
Les termes définis à l'Article 3 sont imprimés en caractères gras.
Une liste de toutes les parties de la série IEC 63241, publiées sous le titre général: Outils
électroportatifs à moteur – Procédure de mesure de la poussière, se trouve sur le site web de
l'IEC.
Ce document a été rédigé selon les Directives ISO/IEC, Partie 2, il a été développé selon les
Directives ISO/IEC, Partie 1 et les Directives ISO/IEC, Supplément IEC, disponibles sous
www.iec.ch/members_experts/refdocs. Les principaux types de documents développés par
l'IEC sont décrits plus en détail sous www.iec.ch/standardsdev/publications.
Le comité a décidé que le contenu de ce document ne sera pas modifié avant la date de stabilité
indiquée sur le site web de l’IEC sous "http://webstore.iec.ch" dans les données relatives au
document recherché. À cette date, le document sera
• reconduit,
• supprimé,
• remplacé par une édition révisée, ou
• amendé.
NOTE L'attention des Comités Nationaux est attirée sur le fait que les fabricants d'appareils et les organismes
d'essai peuvent avoir besoin d'une période transitoire après la publication d'une nouvelle publication IEC, ou d'une
publication amendée ou révisée, pour fabriquer des produits conformes aux nouvelles exigences et pour adapter
leurs équipements aux nouveaux essais ou aux essais révisés.
Le comité recommande que le contenu de cette publication soit entériné au niveau national au plus tôt 36 mois après
la date de publication.
INTRODUCTION
La poussière inhalable dégagée par les outils électroportatifs à moteur peut présenter un
danger pour l'opérateur et les autres personnes exposées.
De ce fait, le présent document spécifie une procédure pour mesurer la concentration de
poussière produite par les outils électriques dans des conditions normalisées représentant des
applications typiques. Toutefois, la concentration de poussière lors de l'utilisation réelle de
l'outil électrique peut différer de la concentration de poussière mesurée conformément au
présent document, selon la manière dont est utilisé l'outil.
Les résultats des mesures de poussière peuvent être utilisés aux fins suivantes:
– déclaration des émissions de poussière;
– comparaison des émissions de poussière d'outils de même type; ou
– évaluation préliminaire de l'exposition à la poussière sur un lieu de travail.
Dans tous les cas, il est important de spécifier des procédures de mesure présentant une
exactitude connue afin de pouvoir comparer les résultats des mesurages réalisés par différents
laboratoires.
Les mesurages de concentration de poussière sont effectués conformément à
l'EN 1093-9:1998 et à l’EN 1093-9:1998/A1:2008 pour la salle d'essai.

– 20 – IEC 63241-1:2023 © IEC 2023
OUTILS ÉLECTROPORTATIFS À MOTEUR –
PROCÉDURE DE MESURE DE LA POUSSIÈRE –

Partie 1: Exigences générales
1 Domaine d'application
Le présent document spécifie
...