SIST EN ISO 5349-3:2026

SLOVENSKI STANDARD
01-februar-2026
Mehanske vibracije - Merjenje in vrednotenje izpostavljenosti ljudi pri prenosu
vibracij na roke - 3. del: Izolirani in ponavljajoči se udarci s frekvenčnim območjem
ISO 5349-1 (ISO 5349-3:2025)
Mechanical vibration - Measurement and evaluation of human exposure to hand-
transmitted vibration - Part 3: Isolated and repeated shocks using the frequency range of
ISO 5349-1 (ISO 5349-3:2025)
Mechanische Schwingungen - Messung und Bewertung der Einwirkung von
Schwingungen auf das Hand-Arm-System des Menschen - Teil 3: Isolierte und
wiederholte Stöße im Frequenzbereich der ISO 5349-1 (ISO 5349-3:2025)
Vibrations mécaniques - Mesurage et évaluation de l’exposition des individus aux
vibrations transmises à la main - Partie 3: Évaluation de chocs isolés ou répétés en
utilisant la gamme de fréquences couverte par l’ISO 5349-1 (ISO 5349-3:2025)
Ta slovenski standard je istoveten z: EN ISO 5349-3:2025
ICS:
13.160 Vpliv vibracij in udarcev na Vibration and shock with
ljudi respect to human beings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 5349-3
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2025
EUROPÄISCHE NORM
ICS 13.160
English Version
Mechanical vibration - Measurement and evaluation of
human exposure to hand-transmitted vibration - Part 3:
Isolated and repeated shocks using the frequency range of
ISO 5349-1 (ISO 5349-3:2025)
Vibrations mécaniques - Mesurage et évaluation de Mechanische Schwingungen - Messung und Bewertung
l'exposition des individus aux vibrations transmises à der Einwirkung von Schwingungen auf das Hand-Arm-
la main - Partie 3: Évaluation de chocs isolés ou répétés System des Menschen - Teil 3: Isolierte und
en utilisant la gamme de fréquences couverte par l'ISO wiederholte Stöße im Frequenzbereich der ISO 5349-1
5349-1 (ISO 5349-3:2025) (ISO 5349-3:2025)
This European Standard was approved by CEN on 14 December 2025.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5349-3:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 5349-3:2025) has been prepared by Technical Committee ISO/TC 108
"Mechanical vibration, shock and condition monitoring" in collaboration with Technical Committee
CEN/TC 231 “Mechanical vibration and shock” the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2026, and conflicting national standards shall be
withdrawn at the latest by June 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 5349-3:2025 has been approved by CEN as EN ISO 5349-3:2025 without any
modification.
International
Standard
ISO 5349-3
First edition
Mechanical vibration —
2025-12
Measurement and evaluation
of human exposure to hand-
transmitted vibration —
Part 3:
Isolated and repeated shocks using
the frequency range of ISO 5349-1
Vibrations mécaniques — Mesurage et évaluation de l’exposition
des individus aux vibrations transmises à la main —
Partie 3: Évaluation de chocs isolés ou répétés en utilisant la
gamme de fréquences couverte par l’ISO 5349-1
Reference number
ISO 5349-3:2025(en) © ISO 2025

ISO 5349-3:2025(en)
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
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or ISO’s member body in the country of the requester.
ISO copyright office
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CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 5349-3:2025(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms. 2
5 Hand-transmitted shock. 3
6 Measurement and evaluation . 4
6.1 Evaluation of continuous hand-transmitted vibration .4
6.2 Frequency range and frequency weightings . .4
6.3 Evaluation of HTS .5
6.4 Measuring HTS .5
6.4.1 General .5
6.4.2 Location and orientation of transducers .5
6.4.3 Determining the instantaneous total values .5
6.4.4 Transducer coupling .6
6.4.5 Sampling .7
6.4.6 Measurement period .7
7 Application of HTS evaluations . 8
7.1 Emission information .8
7.2 Health effects .8
8 Test report . 8
Annex A (informative) Isolated and continuous hand-transmitted shock . 9
Annex B (informative) Examples of VPM, p measured on common machine types . 14
F
Annex C (informative) Supplementary measurement parameters .15
Bibliography .20

iii
ISO 5349-3:2025(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 108, Mechanical vibration, shock and condition
monitoring, Subcommittee SC 4, Human exposure to mechanical vibration and shock, in collaboration with
the European Committee for Standardization (CEN) Technical Committee CEN/TC 231, Mechanical vibration
and shock, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).
A list of all parts in the ISO 5349 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
ISO 5349-3:2025(en)
Introduction
The risk estimation for hand-arm vibration injury is based on ISO 5349-1. The scope of the 2001 revision
of that International Standard notes that “the time dependency for human response to repeated shock
vibrations is not fully known” and the application of ISO 5349-1 to such vibration is to be “made with caution”.
Despite the lack of knowledge in this field, it is desirable to standardise methods for evaluating exposures of
the hand and arm to isolated and repeated shocks (referred to here as hand-transmitted shock vibrations or
HTS) from hand-held and hand-guided machinery and specifically provide a metric suitable for evaluating
the peak amplitude of acceleration signals. This document gives guidance for evaluating HTS in the frequency
range covered by ISO 5349-1.
NOTE European union regulations relating to machinery safety require (from 2027) manufacturers or suppliers
to provide values for the “mean of the peak amplitude of the acceleration” from repeated HTS.
The objective for this document is to
— provide machine manufactures and users a method for evaluating HTS,
— support research on health effects from HTS, and
— encourage and enable
— machine manufacturers to reduce HTS,
— the development of mitigation measures on existing tools, and
— the reduction of HTS exposures in the workplace.
The use of this document will contribute to the gathering of consistent HTS data to improve occupational
safety. There is currently no clear evidence that HTS produces specific health effects beyond those associated
with hand-transmitted vibration or presents an increased risk of developing other musculoskeletal
injuries to the hand and arm such as repetitive strain injury and carpal tunnel syndrome. The systematic
measurement and reporting of parameters relating to HTS may provide evidence of associations with
individual health effects.
This document specifies the general requirements for the measurement and evaluation of human exposure
to HTS. It builds on the requirements of ISO 5349-1 and measurement guidance in ISO 5349-2. It uses
instrumentation that conforms to the requirements of ISO 8041-1. The current version ISO 8041-1:2017 does
not require measurement of the peak value of acceleration for hand-transmitted vibration, however, the
instrumentation conforming to ISO 8041-1, should provide some confidence in measurements of the metrics
specified here.
This document is based on measurements in the frequency range covered by ISO 5349-1. It is recognised
that the limited frequency range of ISO 5349-1 does not fully account for all the high-frequency components
of HTS, particularly when the HTS is generated by percussive machinery. For this reason, an additional
Technical Specification is being prepared that enables both hand-transmitted vibration (HTV) and HTS
[10]
evaluations to include vibration frequencies higher than the upper frequency limit of ISO 5349-1 .

v
International Standard ISO 5349-3:2025(en)
Mechanical vibration — Measurement and evaluation of
human exposure to hand-transmitted vibration —
Part 3:
Isolated and repeated shocks using the frequency range of
ISO 5349-1
1 Scope
This document specifies the general requirements for the measurement and evaluation of human exposure
to hand-transmitted shock vibrations. For the purposes of this document, hand-transmitted shock vibration
is any impactive or impulsive vibration that the machine or tool produces as a sequence of single events
(isolated shock vibrations) linked by periods of no, or lower vibration.
This document specifies parameters for the evaluation of machinery emissions of hand-transmitted shocks
in the frequency range covered by ISO 5349-1 (nominally the frequency range covered by the octave bands
from 8 Hz to 1 000 Hz).
NOTE It is recognised that shock vibration often includes substantial high-frequency vibration energy. Therefore,
reporting of information on hand-transmitted shock at higher frequencies that those specified in this document can
be valuable.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 2041, Mechanical vibration, shock and condition monitoring — Vocabulary
ISO 5349-1:2001, Mechanical vibration — Measurement and evaluation of human exposure to hand-transmitted
vibration — Part 1: General requirements
ISO 5349-2, Mechanical vibration — Measurement and evaluation of human exposure to hand-transmitted
vibration — Part 2: Practical guidance for measurement at the workplace
ISO 8041-1:2017, Human response to vibration — Measuring instrumentation — Part 1: General purpose
vibration meters
ISO/IEC Guide 98-3, Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in
me a s ur ement (GUM: 1995)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5349-1, ISO 5349-2, ISO 8041-1,
ISO 2041 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/

ISO 5349-3:2025(en)
3.1
shock
sudden change of force, position, velocity or acceleration occurring in a period of time less than or equal to
the duration corresponding to the natural frequency of a component of a machine or biological system and
excites disturbances in that component
3.2
shock vibration
vibration caused by an event that generates a shock (3.1)
3.3
isolated shock vibration
single, hand-transmitted, shock vibrations (3.2) substantially separated in time from other shock vibrations
3.4
repeated shock vibrations
sequences of hand-transmitted isolated shock vibrations (3.1) linked by periods of no, or low vibration
magnitudes
Note 1 to entry: The sequences of repeated shock vibrations may be at regular or irregular intervals.
3.5
continuous shock vibration
continuous sequences of hand-transmitted shock vibration (3.2) linked by periods where the vibration
magnitude does not decay significantly between individual shocks (3.1)
3.6
W frequency weighting
h
frequency weighting characteristic that reflects the assumed importance of different frequencies in causing
injury to the hand, as specified as W in ISO 8041-1:2017, 5.6
h
3.7
flat frequency weighting
h
band-limiting component of the W frequency weighting (3.6)
h
Note 1 to entry: The W frequency weighting (3.6) shall be as specified in ISO 8041-1.
h
3.8
vibration peak magnitude
VPM
value representing the mean value of the peak amplitude of the acceleration
4 Symbols and abbreviated terms
HTS hand-transmitted shock vibration
at , at , at
instantaneous single-axis acceleration value of the flat frequency weighted
Fx Fy Fz
h
vibration in the axes denoted as x, y and z (m/s )
a t

instantaneous flat acceleration total value
Fv
h
The instantaneous triaxial acceleration total value of the flat frequency weighted
h
vibration (m/s ) is given by:
22 2
at atatat
Fv Fx Fy Fz
a
time-averaged flat acceleration
Fv
h
Root-mean-square (RMS) of the flat triaxial vibration total value (m/s ), over
h
a specified time interval T , as given by:
m
T
m
a  at dt

Fv Fv

T
m
ISO 5349-3:2025(en)
f frequency (Hz)
p
vibration peak magnitude (VPM) of the flat acceleration total value
F
h
th th
Square root ratio of the 6 power acceleration sum to the 4 power acceleration
sum (m/s ), over a specified time interval T , as given by:
m
T
m
at dt

Fv

p 
F
T
m
atdt
Fv

NOTE For digital processing, this can also be expressed as:
n
a
 Fvi
i1
p 
F
n
a
Fvi

i1
where i is the sample number and n is the total number of samples.
R repetition rate
-1
Number of shocks per second (s )
NOTE 1  The repetition rate applies to periodically repeated HTS.
-1 -1
NOTE 2  The unit s is identical to the unit Hz. In this document the unit s is
used for the single value representing the repetition rate, while Hz is used to
refer to the frequency characteristics of the full acceleration signal.
R mean repetition rate
-1
The mean (average) repetition rate (s ) is given by:
N 1
R
TT
n 1
where N is the number of shock events and T – T the time period in seconds
N 1
th
between the first event at time T and the N event at time T .
1 N
NOTE The mean repetition rate applies to repeated HTS with varying time
intervals between shocks.
T measurement duration or measurement period (s)
m
T shock period or repetition time
rep
Time between one shock event and the next (s)
5 Hand-transmitted shock
Hand-held power tools, hand-guided machinery, hand-fed machinery and manual tools can expose the user
to hand-transmitted shock vibrations (HTS). It can be useful to distinguish between isolated and continuous
HTS, see Annex A.
Tools such as nail guns, produce isolated HTS on an irregular basis, controlled by the machine operator.
Road breakers produce shocks repetitively, controlled by the machine and operations such as grinding can
produce continuous shock vibration.
At higher repetition rates, individual elements of a machine operation will cause the shock vibrations, such
as individual saw teeth biting into a cut. At these high rates the shocks will be perceived as continuous
vibration.
ISO 5349-3:2025(en)
6 Measurement and evaluation
6.1 Evaluation of continuous hand-transmitted vibration
Any evaluation of HTS should include evaluation of continuous hand-transmitted vibration, in accordance
with ISO 5349-1 and the measurement guidance in ISO 5349-2.
6.2 Frequency range and frequency weightings
The principal HTS measurement specified in this document uses the flat frequency weighting, which is
h
the band-limiting component of the W frequency weighting specified in ISO 5349-1 and ISO 8041-1, see
h
Figure 1.
The flat frequency weighting shall meet the specification for the band-limiting component of the W
h h
frequency weighting given in ISO 8041-1 and illustrated in Figure 1.
NOTE 1 For practical measurement of HTS, the measurement system’s upper frequency limit, is usually defined by
anti-aliasing filtering or other low-pass filtering that is implemented in addition to the flat weighting.
h
NOTE 2 For HTS containing significant high-frequency vibration, the actual upper frequency limit of the
measurement system can have a very significant effect on the results of HTS measurements. Reducing the measurement
system’s upper frequency limit can produce lower values for any measurements related to the magnitude of vibration
peaks.
Key
X frequency in Hz
Y weighting factor
flat
h
W
h
Figure 1 — W and flat frequency weightings (from ISO 5349-1 and ISO 8041-1) for flat weighting
h h h
when used for VPM
ISO 5349-3:2025(en)
6.3 Evaluation of HTS
The following parameters shall be evaluated for the combination of the three axes, x, y and z:
— vibration peak magnitude (VPM) of the flat acceleration, p ;
h F
— measurement time, T .
m
The measurement uncertainty shall be assessed in accordance with ISO/IEC Guide 98-3 (GUM) (see also
[4]
ISO/TS 22704 ).
In some cases, a single event that generates a very high vibration peak within a series of other lower-
magnitude events can have a significant impact on the measured p value and will affect the uncertainty
F
of the measurement. Such events can be a real part of the HTS signal and will need to be fully evaluated.
However, for some applications these events do not represent the normal vibration pattern from the source
and the analysis will need to exclude these events.
Annex B provides example measured values of the VPM values, p for some common hand-held powered
F
machinery.
Annex C provides information on supplementary parameters that can be val
...