oSIST prEN 1032:2026

SLOVENSKI STANDARD
01-oktober-2026
Mehanske vibracije - Preskušanje mobilnih strojev za ugotavljanje vrednosti
oddajanja vibracij
Mechanical vibration - Testing of mobile machinery in order to determine the vibration
emission value
Mechanische Schwingungen - Prüfverfahren für bewegliche Maschinen zum Zwecke der
Bestimmung des Schwingungsemissionswertes
Vibrations mécaniques - Essai des machines mobiles pour en déterminer la valeur
d'émission vibratoire
Ta slovenski standard je istoveten z: prEN 1032
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.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2026
ICS 13.160 Will supersede EN 1032:2003+A1:2008
English Version
Mechanical vibration - Testing of mobile machinery in
order to determine the vibration emission value
Vibrations mécaniques - Essai des machines mobiles Mechanische Schwingungen - Prüfverfahren für
pour en déterminer la valeur d'émission vibratoire bewegliche Maschinen zum Zwecke der Bestimmung
des Schwingungsemissionswertes
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 231.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1032:2026 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and symbols . 8
4 Basic standards . 8
5 Description of a family of machines . 8
6 Characterization of vibration . 9
6.1 Direction of measurement . 9
6.2 Location of measurement . 10
6.3 Vibration emission . 11
7 Instrumentation requirements . 12
7.1 General. 12
7.2 Mounting of transducers . 12
7.3 Frequency weighting filter . 13
7.4 Integration time . 14
7.5 Sensitivity to environmental influences . 14
7.6 Calibration of the measurement chain . 14
7.7 Errors of measurement. 14
7.8 Instrumentation other than vibration instrumentation . 14
8 Testing and operating conditions of the machinery . 15
8.1 General. 15
8.2 Machinery and equipment . 15
8.3 Operating conditions and test tracks . 16
8.4 Operators . 17
8.5 Environmental parameters . 17
9 Measurement procedure and validity . 17
9.1 Measurement procedure . 17
9.2 Validity of tests on artificial test tracks . 18
10 Vibration emission value . 18
10.1 Reported vibration values . 18
10.2 Declaration of vibration emission values . 19
10.3 Verification of vibration emission values . 19
11 Measurement report . 19
Annex A (normative) Minimum information to be given in the vibration test code . 21
Annex B (informative) Possible sources of errors of measurement . 23
Annex C (informative) Alternative method for determination of vibration emission value in
seats when a machine can be fitted with different models of seats . 24
Annex D (informative) Procedure for developing a test method for a specific category of
mobile machines using artificial test track . 25
D.1 Description of test method . 25
D.2 Determination of the conditions of test . 25
D.3 Validation of the test method . 26
Annex E (informative) Procedure for developing a test method for a specific category of
mobile machines using natural test track . 27
E.1 General description . 27
E.2 Description of the test procedure . 27
E.3 Validation of the test method . 30
Annex F (informative) Example test report . 31
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Regulation (EU) 2023/1230 aimed to be covered . 32
Bibliography . 35

European foreword
This document (prEN 1032:2026) has been prepared by Technical Committee CEN/TC 231 “Mechanical
vibration and shock”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1032:2003+A1:2008.
This document includes the following significant technical changes with respect to
EN 1032:2003+A1:2008:
— Updating the standard texts for B-type standards in the Introduction;
— clarifying the scope by moving pure information into the Introduction;
— updating Clause 4 to latest basic standards;
— restructuring of the standard by introducing a clear separation between whole-body vibration and
hand-transmitted vibration;
— adding the value for repeated shock vibration for hand-transmitted vibration;
— changing informative Annex A to normative Annex A;
— deleting of Annex B, the frequency weighting curves are included in EN ISO 8041-1:2017;
— editorial changes.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
For the relationship with EU Legislation, see informative Annex ZA, which is an integral part of this
document.
Introduction
Exposure to mechanical vibration from mobile machinery can interfere with comfort, working efficiency
and, in some circumstances, health and safety. The Machinery Regulation (EU) 2023/1230, supported by
the basic safety standards EN ISO 12100, requires that machinery is designed and constructed so that the
risks resulting from vibration emissions are minimized and that where risks remain, despite such
measures, the machinery manufacturer supplies warnings. It also states that the information concerning
vibrations generated by mobile machinery which are transmitted to the hand-arm system or to the whole
body is given in the instructions for use. Knowledge of whole-body and hand-transmitted vibration
emission values will aid the selection of low-vibration machinery.
The vibration emission determined by a test code should be in proportion to the magnitude of the
vibration hazard. In some cases (for example, where the vibration emission at the seat contains shocks)
the r.m.s. values determined by the test code cannot adequately represent the vibration hazard. Test
codes should provide guidance on how to warn of vibration risk (residual risk) in these cases.
This document covers the vibration parameters required for declaration by the Machinery Regulation
(EU) 2023/1230. Values of r.m.s. acceleration for both whole-body vibration and hand-transmitted
vibration are given along with values representing the mean peak acceleration for repeated shock
vibrations transmitted to the hand-arm system. This document also provides general requirements for
testing and evaluating whole-body and hand-transmitted vibration emissions of mobile machinery as a
basis for technical committees responsible for the preparation of vibration test codes.
The purpose of this document is to assist technical standardization committees responsible for specific
types of machinery in preparing vibration test codes to ensure that such vibration test codes
— are as homogeneous as possible with each individual test code having the same basic structure,
— are in full accordance with basic standards on measurement of vibration emission,
— reflect the latest technical knowledge of methods of determining the vibration emission from the
specific family of machinery under consideration,
— provide a standardized method for the determination and declaration of the vibration emission
value(s) of machinery,
— to enable the vibration emission value(s) of different machines to be compared, and
— to verify the vibration emission value(s) of machinery.
Standardized vibration test codes are required for many purposes, e.g. to fulfil legal requirements, as well
as for trade agreements, aspects of work environment, vibration control, planning of process and work.
In order to prepare a vibration test code for a specific family of machinery it is essential to establish
additional requirements for that family, e.g. installation and mounting conditions, operating conditions,
measurement positions, measurement directions, vibration declaration, information to be reported.
It is essential when developing a test code for declaration of vibration emission to define a procedure to
collect representative vibration values for the machine, to identify causes of variability, to validate the
test method and to evaluate the reproducibility of results.
Guidance or recommendations for determination of human exposure to vibration at the workplace are
not in the scope of this document. For such information, see ISO 5349-1 and ISO 2631-1.
This document is a type-B standard as stated in EN ISO 12100.
This document is of relevance, in particular, for the following stakeholder groups representing the market
players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organizations, market surveillance etc.).
When the above-mentioned stakeholder groups use this document, other groups can be affected by the
level of machinery safety achieved, including:
— machine users/employers (small, medium and large enterprises);
— machine users/employees (e.g. trade unions, organizations for people with special needs);
— service providers, e.g. for maintenance (small, medium and large enterprises);
— consumers (in case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate at the drafting
process of this document.
In addition, this document is intended for standardization bodies elaborating type-C standards.
The requirements of this document can be supplemented or modified by a type-C standard.
For machines that are covered by the scope of a type-C standard and have been designed and built
according to the requirements of that standard, the requirements of that type-C standard take
precedence.
The obligations to control risks arising from exposures to vibration are specified in Europe by Directive
2002/44/EC which uses a daily vibration exposure value A(8), that is not to be confused with the
vibration emission used in this document.
1 Scope
This document specifies the determination of whole-body and hand-transmitted vibration emissions at
operator position(s) during testing of mobile machinery under regular operation, e.g. travelling, towing,
lifting, excavating.
This document provides requirements for the preparation of vibration test codes (C-type standards),
including guidelines and requirements for the conditions (e.g. operating conditions) for measurements.
This document applies to sitting and standing positions. It is applicable to all mobile machinery producing
periodic or random vibration with or without shocks.
This document contains sufficient guidance for designing an appropriate test for machinery for which no
vibration test codes exist. It can also be used for the determination of vibration emission values of
individual machines.
This document is not applicable to rotational vibration and backrest vibration.
This document does not present limits or recommended vibration emission values.
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 12096:2026, Mechanical vibration — Declaration and verification of vibration emission values
EN 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)
EN ISO 8041-1:2017, Human response to vibration - Measuring instrumentation - Part 1: General purpose
vibration meters (ISO 8041-1:2017)
EN ISO 10326-1:2016, Mechanical vibration - Laboratory method for evaluating vehicle seat vibration -
Part 1: Basic requirements (ISO 10326-1:2016, Corrected version 2017-02)
ISO 2041:2018, Mechanical vibration, shock and condition monitoring — Vocabulary
ISO 5805:1997, Mechanical vibration and shock — Human exposure — Vocabulary
3 Terms, definitions and symbols
For the purposes of this document, the terms and definitions given in ISO 2041:2018 and ISO 5805:1997
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/
3.1
vibration test code
type-C standard relative to a specified family or sub-family or type of machinery, which gives all the
information necessary to carry out efficiently the determination, declaration and verification of the
vibration emission values, with the purpose of ensuring compatibility and allowing comparison of test
results
3.2
mode of operation
task performed by a mobile machine, for which a vibration emission value is determined
EXAMPLE travelling, towing, lifting, excavating
3.3
operating conditions
parameters which affect the vibration emission of a mobile machine for a particular mode of operation
EXAMPLE travelling speed, travelling surface, weight of load, material being excavated
4 Basic standards
The preparation of vibration test codes for mobile machinery shall be based on the requirements of this
document and, for declaration, also on the requirements of EN 12096:2026, Clause 4.
As a minimum, a vibration test code shall cover the items listed in Annex A.
Where no specific vibration test codes exist for a family of machines, this document shall be used as a test
code. In such cases details of the measurement method and machine operation (see Clauses 6, 7 and 8)
shall be fully reported.
NOTE EN 12096:2026, Clause 5 gives guidance on how to verify the vibration emission values of machinery.
5 Description of a family of machines
The family or type of machinery covered by the vibration test code shall be described unambiguously and
in detail. In describing the configuration of the machinery, a vibration test code shall
— identify any additional equipment, attachment or accessories, e.g. tools, used in the operation of the
machine under test and which can have an influence on the vibration emission,
— specify the selection of optional components, devices or sub-assemblies, e.g. tyres or seats, which can
have an influence on the vibration emission, and which shall be used during the determination of
vibration emission,
— identify the range of applications for which the vibration test code is intended.
It can be appropriate to divide a family of machinery into sub-families requiring different conditions of
testing.
6 Characterization of vibration
6.1 Direction of measurement
6.1.1 Whole-body vibration
Translational whole-body vibration transmitted to the human body is related to the appropriate
directions of an orthogonal coordinate system.
The terminology commonly used in biomechanics relates the coordinate systems to the human skeleton
in a normal anatomical position. The directions are as follows:
— x-direction: back to chest;
— y-direction: right side to left side;
— z-direction: foot (or buttocks) to head.
These directions are illustrated in Figure 1.

Key
1 supporting surface
x back to chest
y right side to left side
z foot (or buttocks) to head
Figure 1 — Directions of the basicentric coordinate system for mechanical whole-body vibration
influencing human beings
6.1.2 Hand-transmitted vibration
Translational hand-transmitted vibration from a steering wheel is related to the steering wheel as
follows:
— x-direction: the radial direction;
— y-direction: the direction tangential to the rim of the steering wheel;
— z-direction: the direction orthogonal to both the x-direction and the y-direction.
These directions are illustrated in Figure 2.
For some machines, a steering control is used instead of a steering wheel. In such cases the directions
shall be specified in the vibration test code.
If measurements are to be made also in controls other than those for steering (e.g. levers), the vibration
test code shall specify the directions.

Key
x radial direction
y direction tangential to the rim of the steering wheel
z direction orthogonal to both the x-direction and the y-direction
Figure 2 — Directions of measurement on steering wheels
6.2 Location of measurement
6.2.1 Whole-body vibration
For whole-body vibration measurements, vibration should be determined as close as possible to the point
or area through which the vibration is transmitted to the body. This can encompass more than one
measurement point.
a) In the case where the exposed persons are sitting, the transducer mounted in a semi-rigid disc
(see 7.2) shall be placed on the surface of the seat such that the transducer is located midway
between the ischial tuberosities of the seated person. For comfort reasons, it is acceptable if the
centre of the disc is located slightly in front (up to 5 cm) of the ischial tuberosities.
b) In the case where the exposed persons are standing or have their feet on a driving or a working
platform, the transducer shall be located as in Figure 1 with the transducer midway between the
arches of the feet.
NOTE There is no requirement for declaration of vibration at the backrest, so it is not covered in this document.
6.2.2 Hand-transmitted vibration
For hand-transmitted vibration measurements, vibration should be determined as close as possible to
the point or area through which the vibration is transmitted to the hand.
Measurements on the steering wheel shall be carried out adjacent to the normal position of a hand
guiding the steering wheel. The position of the accelerometer shall be as near as possible to the hand
without obstructing normal grip.
If the test code also requires measurements to be made on controls (e.g. levers), these measurements
shall be made as close as possible to where the hand makes contact with the control during machine use,
as specified in the instruction for use.
6.3 Vibration emission
6.3.1 Whole-body vibration
The quantity used to describe the magnitude of continuous whole-body vibration shall be the frequency-
weighted acceleration in m/s , expressed as a root-mean-square (r.m.s.) value a .
w
The frequency weightings for continuous whole-body vibration given in 7.3.1 shall be used.
The frequency weighted acceleration a for whole-body vibration is defined as the r.m.s. value of the
w
frequency-weighted acceleration signal a (t):
w
T
a = at dt (1)
()
ww
∫
T
Requirements for the integration time T are given in 7.4.
The measurements shall be made in three directions. The following values shall be determined.
a ,,aa (2a)
wx wy wz
a =max1,4 a ;1,4 aa; (2b)
{ }
w max wx wy wz
where
a , a and a are the r.m.s. values for whole-body vibration of the frequency-weighted
wx wy wz
acceleration in the x-direction, y-direction and z-direction, respectively.
A value for the associated uncertainty value K shall be determined, see 10.2 for declaration.
a
6.3.2 Hand-transmitted vibration
6.3.2.1 Continuous vibration
The quantity used to describe the magnitude of continuous hand-transmitted vibration shall be the
frequency-weighted acceleration in m/s , expressed as a root-mean-square (r.m.s.) value a .
hw
The frequency weighting for continuous hand-transmitted vibration given in 7.3.2 shall be used.
The frequency weighted acceleration a for continuous hand-transmitted vibration is defined as the
hw
r.m.s. value of the frequency-weighted acceleration signal a (t):
hw
T
a = a t dt (3)
()
hw hw
∫
T
Requirements for the integration time T are given in 7.4.
NOTE The measurement of hand-transmitted vibration can be inspected for the effects of operator-induced
movements and either these effects removed from the signal or a period selected for analysis which is free of these
artefacts.
The measurements shall be made in three directions. The following values shall be determined.
a ,,aa (4a)
hwx hwy hwz
2 22
a a++aa (4b)
hv hwx hwy hwz
where
a , a and a are the r.m.s. values for hand-transmitted vibration of the frequency-weighted
hwx hwy hwz
acceleration in the x-direction, y-direction and z-direction, respectively.
A value for the associated uncertainty value K shall be determined, see 10.2 for declaration.
a
6.3.2.2 Repeated shock vibration
The quantity used to describe the magnitude of hand-transmitted repeated shock vibrations shall be the
vibration peak magnitude of the flat frequency weighted acceleration, p in m/s .
h F
The frequency weighting for repeated shock vibrations given in 7.3.2 shall be used.
The instantaneous tri-axial acceleration total value of the flat frequency weighted vibration (m/s ) used
h
to determine the p value is specified by
F
2 2 2
at a t++at a t (5)
() () () ()
Fv Fx Fy Fz
where a (t), a (t), a (t) are the instantaneous single-axis acceleration values of the flat frequency
Fx Fy Fz h
weighted vibration in the axes denoted as x, y and z (m/s ).
The vibration peak magnitude of the flath acceleration total value shall be calculated in accordance with
EN ISO 5349-3:2025, Clause 4.
Requirements for the integration time, T, are given in 7.4.
A value for the associated uncertainty value K shall be determined, see 10.2 for declaration.
p
7 Instrumentation requirements
7.1 General
Unless otherwise specified by the relevant vibration test code the dynamic range, sensitivity, accuracy,
linearity and overload capacity of the vibration measuring system shall be in accordance with
EN ISO 8041-1:2017.
7.2 Mounting of transducers
7.2.1 General
A single tri-axial transducer or three orthogonally mounted transducers are used to measure the three
axes of vibration at each location. Transducers oriented in different directions at a single measurement
location shall be as close together as possible. As far as practicable, neither the mass of the measuring
device and its fixture, nor any local resonances, should affect significantly the measured values.
NOTE General information on the mounting of accelerometers can be found in ISO 5348:2021.
=
=
7.2.2 Whole-body vibration
The transducers used for the measurement on the seat surface shall be mounted in a semi-rigid disc, see
Figure 3. The semi-rigid disc shall be in accordance with EN ISO 10326-1:2016, 5.2.3.
Dimensions in millimetres
Key
1 thin metal disc for accelerometer mount and added centre rigidity
2 appropriate cavity for accelerometer(s)
Figure 3 — Design of a semi-rigid mounting disc
NOTE For practical reasons, it is often not possible to perfectly align the accelerometers in the disc with the
directions of the basicentric coordinate system. In a tolerance range within ± 15° of the appropriate directions the
accelerometers can be considered as aligned parallel to these directions.
The transducers used for the measurement at the feet shall be rigidly fixed on the working platform. If
the working platform is covered by a resilient material, the transducers may be mounted in the middle of
a rigid metal plate (about 300 mm × 400 mm) with the operator standing on the plate.
7.2.3 Hand-transmitted vibration
The transducers used for hand-transmitted vibration measurements on the steering wheel shall be
mounted firmly to the steering wheel, for more information see EN ISO 5349-2.
NOTE There are several problems in making repeatable measurements on a steering wheel. In particular, the
measurement can be strongly affected by steering movements made by the operator. Care is needed to minimize
these, e.g. by making the measurements during travelling on a straight course.
Alternative mounting conditions or specific formed mounting discs or adaptors may be specified in the
specific vibration test code.
7.3 Frequency weighting filter
7.3.1 Whole-body vibration
The whole-body frequency weighting curves W and W in accordance with EN ISO 8041-1:2017, 5.6 shall
d k
be used.
7.3.2 Hand-transmitted vibration
For continuous hand-transmitted vibration the W frequency weighting in accordance with
h
EN ISO 8041-1:2017, 5.6 shall be used.
For hand-transmitted repeated shock vibrations the flat frequency weighting shall be used. The flat
h h
frequency weighting as defined in EN ISO 5349-3:2025, 3.7 is the band-limiting component of the W
h
frequency weighting as specified in EN ISO 8041-1:2017, 5.6.1 Table 3
7.4 Integration time
The integration time is the time period or measurement duration, T, within a vibration data acquisition
or recording that is used for determining the required vibration values. The integration time is not
necessarily equal to the recording time.
The integration time shall be specified in the relevant vibration test code. The integration time shall be a
continuous period of operation or a multiple of complete operating cycles (including at least one full
cycle).
The duration of measurement shall be long enough to ensure reasonable statistical accuracy. The
duration of measurement shall be reported.
For whole-body vibration measurements the integration time for measurements under travelling shall
be as long as reasonably possible and should not be less than 180 s.
For hand-transmitted vibration measurements the integration time shall be as long as reasonably
possible and should not be less than 8 s.
For measurements of single shocks, a shorter integration time (e.g. 3 s) may be used.
NOTE 1 In EN ISO 8041-1:2017 the term measurement duration corresponds to integration time.
NOTE 2 The integration time is less than or equal to the recording time.
In the case of artificial test tracks, the vibration test code shall specify exactly the integration times, which
may be shorter than the duration of the test run.
7.5 Sensitivity to environmental influences
Vibration measuring instrumentation shall meet the requirements for environmental sensitivity stated
in EN ISO 8041-1:2017, Clause 7.
7.6 Calibration of the measurement chain
The whole measurement chain shall be checked both before and after a sequence of measurements.
NOTE It is also important to check regularly that the whole measurement chain is also calibrated at other
frequencies throughout the frequency range of interest.
In addition to regular calibration (e.g. every two years), calibration is also necessary after rough handling
of any important part of the measurement chain. The results of the calibration check shall be recorded.
The transducers shall be calibrated in accordance with EN ISO 8041-1:2017, 12.9. The whole
measurement chain shall be checked following the requirements in EN ISO 8041-1:2017.
7.7 Errors of measurement
See Annex B for information on possible sources of errors of measurement.
7.8 Instrumentation other than vibration instrumentation
Requirements on instrumentation other than vibration instrumentation, used in control of test
conditions, e.g. instrumentation for control of travelling speed, shall be stated by the test code.
8 Testing and operating conditions of the machinery
8.1 General
A vibration test code shall specify precisely the machine and its equipment and also quantitatively its
operating conditions during the determination of the vibration values. The values of the parameters
having significant influence on the vibration emitted shall be selected in the vibration test code such that
the machinery emits vibration representative of the 75-percentile of vibration values experienced in
typical intended use of the machinery in the mode of operation causing the highest vibration. The
vibration emission value to be determined by the test shall include operating conditions representative
of typical activities where vibration levels are reasonably high. It can be appropriate to consider on- and
off-road transit and work cycle activities such as digging or loading. The vibration test code shall
therefore include a description of the mode of operation that is most important for the vibration emitted
by the type or class of machinery.
A vibration test code shall specify the values required for each of the parameters that have a significant
influence on the vibration emitted by the machinery.
NOTE Different operating conditions from those which give high vibration on the seat can be required to give
high vibration on the steering wheel.
8.2 Machinery and equipment
8.2.1 General
Measurements shall be carried out on a new, properly serviced machine. Where a single machine is to be
measured and then taken as representative of a family of machinery, it shall be equipped in a manner
typical of that family of machinery. Where the measurements shall represent a specific configuration or
a unique machine, that configuration shall be described precisely.
8.2.2 Load
The condition with the highest vibration values shall be used during measurements. In most cases the
unloaded machine gives the highest vibration values. A vibration test code shall specify the relevant loads
used during measurements, e.g. tank filling, transported masses. The load shall then be given as an upper
limit with a negative tolerance. The position of the load shall also be described.
8.2.3 Tyres
If the machine is fitted with tyres, it shall be fitted with new tyres of a type recommended by the
machinery manufacturer. In the case of pneumatic tyres, they shall be properly inflated according to the
machinery manufacturer’s instructions. The inflation pressure values shall be checked before and after
the test and be reported. If a deviation of more than 10 % is noted on the tyre inflation pressure before
and after the test, the vibration test shall be repeated. The tyre specification shall be reported.
The vibration emission can be affected by the alternative tyre options (e.g. pneumatic tyres, resilient solid
tyres, cushion tyres (bandages), high-load non-rubber solid tyres, diameter of rims) recommended by the
machine manufacturer. Where possible, vibration test code writers should avoid requiring tests on every
tyre option. However, where the tyre selection is important for the vibration emission value, one series
of measurements shall be made for each type of tyre option. One example should be sufficient for each
type of tyre option.
8.2.4 Rails and wheels
If the machine is running on rails, new wheels and rails whose geometry has been checked shall be used.
8.2.5 Operator stations
If a machine is supplied with an option of having the operator station (e.g. cabin) suspended or
unsuspended, measurements shall be carried out for both cases.
The operator station position can affect the vibration emission. Where the operator station can be moved,
the vibration test code may require measurements to be carried out at different operator station
positions in order to determine the highest vibration emission.
8.2.6 Seats
The seat (or seats) shall be adjusted such that the operator can comfortably reach the necessary controls.
If the machine is equipped with a suspended seat, the suspension shall be adjusted to the operator’s
weight, to minimize the risk of topping and bottoming of the mobile part of the seat suspension. If a
machine can be fitted with different seats, the vibration emission value needs to be determined for each
seat.
NOTE If the vehicle has options for multiple seats, then Annex C can be used to minimize the number of tests
required.
8.2.7 Tools (including attachments)
A tool fitted to a machine can affect the vibration emission. Therefore, machines fitted with tools shall be
tested together with the tool. The vibration test code should avoid requiring tests on every possible tool
option. Where the tool selection is important for the vibration emission value, measurements shall be
made for different tool options, e.g. hydraulic breakers attached to an excavator.
8.2.8 Steering wheel/controls
The person guiding a steering wheel/control is required to grip it with a grip force consistent with having
control of the machine. During the measurements, the hands of the operator shall be guiding the steering
wheel/controls.
NOTE It is important that the operator can operate the machine safely and without difficulty.
8.3 Operating conditions and test tracks
If relevant, a vibration test code may specify simulated and/or simplified operating conditions if
preliminary investigation has shown that these conditions are representative of the vibration emission.
Where the mode of operation resulting in the highest vibration is travelling, it shall include the movement
over a surface representative of real conditions. It shall be realized by specifying a natural or artificial
test track. For development of test methods using artificial or natural test tracks, see Annexes D and E. If
none of the two methods is applicable for a specific category of machinery (e.g. for tracked machines),
the vibration test code may specify another method, provided that the method specified fulfils the
requirements for being representative and reproducible.
If it is an artificial test track, the characteristics of track (length, smoothness of surface, number and
dimensions and hardness of obstacles) shall be precisely defined in the vibration test code.
If it is a natural test track and the method in Annex E is applied, limitations of the test track shall be stated
and the control point value shall be specified in the vibration test code.
Where the highest vibration arises from a mode of operation during intended work other than travelling,
the vibration test code shall specify the work cycle for that operation. The vibration test code shall state
that “vibration values shall be determined for the entire work cycle” and specify the number of work
cycles over which values are to be continuously integrated.
8.4 Operators
The machine should be equipped with a seat for which the SEAT factor, see EN ISO 10326-1:2016, has
been established. The test can then be made with one operator weighing 80 kg , see Annex C.
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The vibration test code may allow equipping the machine with a seat without a known SEAT factor. If the
seat without a known SEAT factor has suspension with springs and dampers, the test shall be made with
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two operators weighing 55 kg and 98 kg and the arithmetic mean value of the two results shall be
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reported. To meet the required mass of the test persons, added masses (e.g. weight belts) may be used
up to 5 kg for the light person and up to 8 kg for the heavy person. If the seat does not have a suspension
mechanism with springs and dampers, the test can be made with one operator weighing 80 kg .
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8.5 Environmental parameters
Tests shall be made in conditions likely to be found on most days during intended use of the machine.
Unlikely extreme conditions (e.g. heat, cold, rain, mud) for the type of machine should be avoided. The
measurements shall be made within the air temperature range 5 °C to 30 °C unless the vehicle is intended
for use outside this temperature range or the machine is equipped with large pneumatic tyres, in which
case tests shall be conducted in representative conditions. The conditions prevailing at the time of test
shall be recorded.
9 Measurement procedure and validity
9.1 Measurement procedure
Before starting the measurements, sufficient time for warming-up the machine, including the tyres, to
reach normal operating conditions (at least 10 min) shall be allowed, during which the machine is
travelling and the seat suspension (if fitted) is operating.
One test series shall be carried out with each type of equipment for which results of measurements are
required (set of tyres, type of cabin and seat).
Measurements for determination of the vibration values shall be repeated for the selected operating
mode to obtain one test series. When the operating condition is travelling, a test seri
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