ISO/FDIS 20500-4
(Main)Mobile road construction machinery — Safety — Part 4: Specific requirements for compaction machines
Mobile road construction machinery — Safety — Part 4: Specific requirements for compaction machines
Machines mobiles pour la construction de routes — Sécurité — Partie 4: Prescriptions spécifiques pour machines de compactage
General Information
Standards Content (Sample)
FINAL DRAFT
International
Standard
ISO/TC 195
Mobile road construction
Secretariat: SAC
machinery — Safety —
Voting begins on:
2025-11-05
Part 4:
Specific requirements for
Voting terminates on:
2025-12-31
compaction machines
Machines mobiles pour la construction de routes — Sécurité —
Partie 4: Prescriptions spécifiques pour machines de compactage
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
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TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
FINAL DRAFT
International
Standard
ISO/TC 195
Mobile road construction
Secretariat: SAC
machinery — Safety —
Voting begins on:
Part 4:
Specific requirements for
Voting terminates on:
compaction machines
Machines mobiles pour la construction de routes — Sécurité —
Partie 4: Prescriptions spécifiques pour machines de compactage
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 SUPPOR TING DOCUMENTATION.
© ISO 2025
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ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Safety requirements and/or protective/risk reduction measures . 2
4.1 General .2
4.1.1 Context .2
4.1.2 Specific relation to ISO 20500-1 .2
4.2 Visibility .3
4.3 Remote control .3
4.4 Starting .3
4.5 Stopping .3
4.5.1 General .3
4.5.2 Stopping device .3
4.6 Operation and handling .3
4.7 Operator's places .4
4.8 Protection .4
4.9 Safety and reliability of control systems.4
4.10 Electrical and electronic systems .4
4.10.1 Degree of protection .4
4.10.2 Batteries .4
4.11 Noise .4
4.11.1 Noise measurement of vibratory plates and vibratory rammers .4
4.12 Vibration .5
4.12.1 Vibration measurement of hand-guided machines .5
5 Verification of the safety requirements and/or protective/risk reduction measures . 5
6 Information for use — Operator's manual . 6
Annex A (normative) Noise test code for vibratory plates and vibratory rammers . 7
Annex B (normative) Measurement of the hand-arm vibration of hand-guided vibratory ground
compaction machines . 19
Annex C (normative) Noise test code for vibratory plates exceeding a working width of 1 m .25
Annex D (informative) List of significant hazards .33
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered .36
Bibliography .40
iii
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 document 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 195, Building construction machinery and
equipment, in collaboration with the European Committee for Standardization (CEN) Technical Committee
CEN/TC 151, Construction equipment and building material machines - Safety, in accordance with the
Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
A list of all parts in the ISO 20500 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
Introduction
This document is a type C standard as stated in 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 organisations, market surveillance etc.).
Others can be affected by the level of machinery safety achieved with the means of the document by the
above-mentioned stakeholder groups:
— 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.
The machinery concerned and the extent to which hazards, hazardous situations or hazardous events are
covered are indicated in the Scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B standards,
the provisions of this type C standard take precedence over the provisions of the other standards, for
machines that have been designed and built according to the provisions of this type C standard.
v
FINAL DRAFT International Standard ISO/FDIS 20500-4:2025(en)
Mobile road construction machinery — Safety —
Part 4:
Specific requirements for compaction machines
1 Scope
This document, together with ISO 20500-1:—, deals with all significant hazards, hazardous situations and
events relevant to compaction machines when used as intended and under the conditions of misuse which
are reasonably foreseeable by the manufacturer (see Annex D) associated with the whole lifetime of the
machine as described in ISO 12100:2010, 5.4.
The requirements of this document are complementary to the common requirements formulated in
ISO 20500-1:—. This document does not repeat the requirements of ISO 20500-1:— but supplements or
modifies the requirements for compaction machines.
This document deals with vibratory plates and vibratory rammers only.
This document does not deal with compaction machines with ride-on operators.
Lightning as a significant and relevant hazard is not covered in this document.
This document is not applicable to compaction machines manufactured before the date of its publication.
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 3744:2010, Acoustics — Determination of sound power levels and sound energy levels of noise sources using
sound pressure — Engineering methods for an essentially free field over a reflecting plane
ISO 5349-1:2001, Mechanical vibration — Measurement and evaluation of human exposure to hand-transmitted
vibration — Part 1: General requirements
ISO 5805:1997, Mechanical vibration and shock — Human exposure — Vocabulary
ISO 8041-1:2017, Human response to vibration — Measuring instrumentation — Part 1: General purpose
vibration meters
ISO 11201:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound
pressure levels at a work station and at other specified positions in an essentially free field over a reflecting
plane with negligible environmental corrections
ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 12508:1994, Earth-moving machinery — Operator station and maintenance areas — Bluntness of edges
ISO 20500-1:—, Mobile road construction machinery — Safety — Part 1: Common requirements
ISO 20643:2005+Amd 1:2012, Mechanical vibration — Hand-held and hand-guided machinery — Principles for
evaluation of vibration emission — Amendment 1: Accelerometer positions
IEC 60529:1989+AMD1:1999, CSV, Degrees of protection provided by enclosures (IP code)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12100:2010, ISO 20500-1:—,
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
compaction machine
machine intended to densify materials, e.g. rock fills, soil or asphalt surfacing, through a tamping, percussive
or vibrating action of the working tool or a combination of these actions
Note 1 to entry: It can be self-propelled, towed or carried as attachment to a carrying machine. A compaction machine
can be controlled by direct control of an operator in physical contact with the machine (standing on the machine or
walking behind operating the controls directly mounted on the machine), or indirect control without physical contact
of an operator with the machine (through wired or wireless remote control).
3.2
vibratory plate
compaction machine (3.1) with mainly flat base-plate which is transposed into vibration and moves into a
predominantly horizontal direction by directional oscillation
Note 1 to entry: The compaction of materials is performed through an oscillating action of the working tool.
Note 2 to entry: ISO 19433:2008 provides a methodology for a further sub-classification of vibratory plates.
3.3
vibratory rammer
compaction machine (3.1) with mainly a flat foot-plate (shoe), which is made to move in a predominantly
vertical direction by displacement
Note 1 to entry: The compaction of materials is performed through a percussive or a tamping action of the working
tool or a combination of them.
4 Safety requirements and/or protective/risk reduction measures
4.1 General
4.1.1 Context
Compaction machines shall conform to the safety requirements and/or protective/risk reduction measures
of this clause. In addition, the machines shall be designed according to the principles of ISO 12100:2010 for
relevant but not significant hazards which are not dealt with by this document.
4.1.2 Specific relation to ISO 20500-1
Compaction machines shall conform to the requirements of ISO 20500-1:—, as far as not modified or replaced
by the requirements of this document.
The following subclauses of ISO 20500-1:— do not apply:
— ISO 20500-1:—, 4.3.4 Steering system;
— ISO 20500-1:—, 4.3.5 Tyres and rims;
— ISO 20500-1:—, 4.4 Operator stations;
— ISO 20500-1:—, 4.5 Operator's seat;
— ISO 20500-1:—, 4.6.2.5 Travel control on ride-on mobile road construction machines;
— ISO 20500-1:—, 4.6.2.6 Pedals;
— ISO 20500-1:—, 4.8 Conveyors;
— ISO 20500-1:—, Annex D and Annex E.
4.2 Visibility
ISO 20500-1:—, 4.2 and Annex G do not apply.
4.3 Remote control
ISO 20500-1:—, 4.6.2.4 shall apply with the following addition:
All travel movements shall be switched off automatically by the receiver if the distance between the
transmitter hold by the operator and the machine is less than 2 m or remote-controlled machines shall be
equipped with an emergency stop.
For infrared remote controls, the beam angles shall not exceed horizontally ±30°.
NOTE It is intended that this measure limits the possibility of a command being unintentionally issued due to
reflecting walls or obstacles.
4.4 Starting
ISO 20500-1:—, 4.7.1 shall apply with the following exception:
— the requirement for a neutral start function does not apply to vibratory plates and vibratory rammers if
they are furnished with a centrifugal clutch in their driving system;
— the requirement for prevention of unauthorized access to engine/motor start does not apply to machines
furnished with a mechanical starter (e.g. recoil starter, crank handle).
4.5 Stopping
4.5.1 General
ISO 20500-1:—, 4.7 shall apply with the following exceptions:
— hold-to-run control for forward and reverse function is not required for vibratory plates and vibratory
rammers;
— an emergency stop is not required for vibratory plates and vibratory rammers.
ISO 20500-1:—, 4.7.4 does not apply.
4.5.2 Stopping device
For vibratory plates and vibratory rammers equipped with a centrifugal force clutch a separate means for
stopping the movement is not required.
4.6 Operation and handling
ISO 20500-1:—, 4.3.2.3.2 applies with following modification:
Tie-down points are not required for machines with an operating mass < 300 kg, if structural parts of the
machine can be used for tie-down.
ISO 20500-1:—, 4.3.3 applies with the following exception:
The 3rd paragraph in ISO 20500-1:—, 4.3.3 does not apply.
4.7 Operator's places
ISO 20500-1:—, 4.4 and 4.5 do not apply.
The operator´s place(s) shall meet the following minimum requirements:
— edges shall be shaped in accordance with ISO 12508:1994;
— the engine exhaust gas shall be directed away from the operator's place(s).
4.8 Protection
ISO 20500-1:—, 4.10 does not apply, with the exception of ISO 20500-1:—, 4.10.2.1.
4.9 Safety and reliability of control systems
For bidirectional vibratory plates ISO 20500-1:—, 4.6.3 applies with the exemption, that requirements set
out in ISO 20500-1:—, Annex F are restricted to point 2 "(driving) movement/travelling function".
For rammers and single-direction vibratory plates ISO 20500-1:—, 4.6.3 does not apply.
NOTE Kinetic energy of rammers and single-direction vibratory plates is limited. In accordance with
ISO 13849-1:2023, Figure A.1 the required performance level can be lowered.
4.10 Electrical and electronic systems
4.10.1 Degree of protection
ISO 20500-1:—, 4.17.2 applies with following modification:
Electronic controls, connectors in control circuits, multi-pin connectors and control switches
installed in the exterior of the machine or directly exposed to the environment, shall have a
minimum protection of IP22 for switchgear assembly casing and IP23 for electrical engine casing of
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV.
4.10.2 Batteries
ISO 20500-1:—, 4.17.4 shall apply with the following exceptions:
The requirement for handles and/or grips on batteries does not apply to batteries < 7,5 kg.
4.11 Noise
4.11.1 Noise measurement of vibratory plates and vibratory rammers
ISO 20500-1:—, 4.19 shall apply with the following additions:
The noise emission of vibratory plates and vibratory rammers shall be determined according to Annex A or
Annex C.
For compaction machines, the main sources of noise are the engine and the working process (compaction).
4.12 Vibration
4.12.1 Vibration measurement of hand-guided machines
ISO 20500-1:—, 4.20 shall apply with the following additions:
The hand-arm vibration of hand-guided machines shall be determined according to Annex B.
5 Verification of the safety requirements and/or protective/risk reduction measures
Safety requirements and/or protective/risk reduction measures of Clauses 4 and 6 shall be verified
according to Table 1.
Table 1 sets out verification methods which shall be applied for each safety requirement in this document.
Where X(s) is indicated in the Table, the corresponding verification method(s) shall be applied.
Table 1 shall be read in conjunction with the corresponding clauses/subclauses.
Table 1 applies in addition to ISO 20500-1:—, Table 3.
Table 1 includes the following verification methods:
a) calculation: to establish that the requirements of this document have been met;
b) visual verification: to establish that something is present (e.g. a guard, a marking, a document);
c) measurement: to show that the required numerical values have been met (e.g. geometric dimensions,
safety distances, resistance of insulation of the electric circuits, results of physical tests);
d) functional tests: to show that the adequate signals intended to be forwarded to the main control
system of the complete machine are available and conform to the requirements and the technical
documentation;
e) special verification: by reference to a standard which is mentioned in the corresponding clause/
subclause.
Table 1 — Verification of safety requirements and/or protective/risk reduction measures
Clause/ Title a) b) c) d) e) Spe-
Subclause Cal- Visual Meas- Func- cial
number cula- veri- ure- tional verifi-
tion fica- ment test cation
tion
4 Safety requirements and/or protective/risk reduction measures
4.1 General
4.1.1 Context X
4.1.2 Specific relation to ISO 20500-1 X
4.2 Visibility
4.3 Remote control X X X
4.4 Starting X X
4.5 Stopping
4.5.1 General X
4.5.2 Stopping device X
4.6 Operation and handling X X
4.7 Operator´s places X X
4.8 Protection X
4.9 Safety and reliability of control systems X
4.10 Electrical and electronic systems
TTabablele 1 1 ((ccoonnttiinnueuedd))
Clause/ Title a) b) c) d) e) Spe-
Subclause Cal- Visual Meas- Func- cial
number cula- veri- ure- tional verifi-
tion fica- ment test cation
tion
4.10.1 Degree of protection X X
4.10.2 Batteries X X X
4.11 Noise
4.11.1 Noise measurement of vibratory plates and vibratory rammers X X
4.12 Vibration
4.12.1 Vibration measurement of hand-guided machines X X
6 Information for use X X
Annex A Noise test code for vibratory plates and vibratory rammers X X
Annex B Measurement of the hand-arm vibration of hand-guided vibratory ground compac- X X
tion machines
Annex C Noise test code for vibratory plates exceeding a working width of 1 m X X
6 Information for use — Operator's manual
ISO 20500-1:—, 6.2 shall apply with the following addition:
— instructions for the proper use including cleaning and maintenance of the water sprinkler system;
— safe procedure for transporting the machine;
— for remote/pedestrian-controlled machines a description of the operator’s place; additional information
for remote controls:
— data on performance and operating limits;
— instructions on actuation;
— a description of the actuation equipment;
— information regarding the assigned operator's location and specification if the actuation of controls
from the operator's place/station which is on the opposite side does not correspond with the
intended/expected direction of the machine movement;
— instructions concerning safe operation (changing the battery, cleaning, reflections, encoding, etc.);
— instructions on action in the event of the occurrence of faults;
— the minimum distance between the machine and the operator shall be 2 m;
— for vibratory rammers a warning that the stability of the machine is limited on uneven surfaces or
when using a narrow ramming plate, as well as an instruction to always operate the machine with
two hands.
Annex A
(normative)
Noise test code for vibratory plates and vibratory rammers
A.1 General
This noise test code specifies all the information necessary to carry out efficiently and under standardised
conditions the determination, declaration and verification of the noise emission characteristics of vibratory
plates and vibratory rammers.
Noise emission characteristics include emission sound pressure levels at workstations and the sound power
level. The determination of those quantities is necessary for:
— manufacturers to declare the noise emitted;
— comparing the noise emitted by machines in the family concerned;
— purposes of noise control at the source at the design stage;
— users to carry out their risk assessment with the help of emission sound pressure levels at operator's
station.
The use of this noise test code ensures reproducibility of the determination of the noise emission
characteristics within specified limits determined by the grade of accuracy of the basic noise-measurement
method used. Noise-measurement methods allowed by this document are engineering methods (grade 2).
Operating and mounting conditions for the determination of noise emission (according to this annex) and
hand-arm vibration (according to Annex B) are identical. It is therefore possible to record the noise emission
and the hand-arm vibration simultaneously during one measurement. The measuring effort is thereby
reduced.
Noise emission of machines exceeding a working width of 1 m shall be determined according to Annex C.
NOTE 1 Tests conducted with machines exceeding a working width of 1 m according to this annex lead to
irreproducible results due to reflection by the apron of the test course.
NOTE 2 The noise evaluation procedures as laid down in this document aim at ensuring the reproducibility of
the measurements of the noise emission of the machine. This determination does not necessarily reflect the noise
emission during operation on construction sites.
NOTE 3 The sound pressure spectra can be registered at microphone position 10 in accordance with ISO 3744:2010, 8.7.
NOTE 4 The sound pressure level can be recorded as a function of time at microphone position 10.
A.2 Determination of the A-weighted sound power level
A.2.1 General
This annex specifies additional requirements for the determination of the A-weighted sound power level
according to ISO 3744:2010.
For all measurements carried out under free field over a reflecting plane conditions according to
ISO 3744:2010, the environmental correction factor K shall be set to 0.
2A
A.2.2 Measurement surface
A.2.2.1 Shape and size of the measurement surface
The measurement surface for determining the A-weighted sound power level shall be a hemisphere of radius
r = 4 m that is bounded by the plane sound-reflecting surface (see Figures A.1 and A.2).
NOTE Figure A.1 defines the test positions and shows a vibratory plate. It also applies to vibratory rammers.
A.2.2.2 Microphone positions
Six microphone positions are specified on the hemisphere (see Figures A.1, A.2 and Table A.1).
Dimensions in metres
Key
A start
B end
L measuring length (L = 5,60 m)
AB AB
2, 4, 6, 8, 10, 12 microphone positions for sound power level determination (see Table A.1)
13, 14 microphone positions for emission sound pressure level determination
a
Gravel-test course (depth > 0,50 m).
b
Hard reflecting plane = 10 m × 10 m.
Figure A.1 — Arrangement of test positions for hand-guided vibratory plates and hand-guided
vibratory rammers
The measuring travel time in seconds is calculated according to Formula (A.1):
L
AB
t = (A.1)
F
v
F
where
v is the working speed in m/s;
F
t is the measuring travel time, which equals the measuring time t .
F M
Dimensions in metres
Key
A start
B end
L measuring length (L = 5,60 m)
AB AB
2, 4, 6, 8, 10, 12 microphone positions for sound power level determination (see Table A.1)
13, 14 microphone positions for emission sound pressure level determination
a
Gravel-test course (depth > 0,50 m).
b
Hard reflecting plane = 10 m × 10 m.
Figure A.2 — Arrangement of test positions for remote controlled vibratory plates
Table A.1 — Coordinates of microphones
Coordinates in m
Measuring point
x y z
2 2,8 2,8 1,5
4 −2,8 2,8 1,5
6 −2,8 −2,8 1,5
8 2,8 −2,8 1,5
10 −1,08 2,6 2,84
12 1,08 −2,6 2,84
A.2.3 Test procedure
The machine shall be moved along the centre line of the test course as in usual operation.
For the measurements, the machine shall be in accordance with the manufacturer’s specifications (e.g. if the
extension plates of a vibratory plate are attached on delivery, then they shall remain screwed on during the
measurement).
The drawbar if any shall be freely movable between the upper and lower stops.
Simultaneous measurement at all microphone positions is preferred (consecutive measurements are also
possible and allowed).
The vibration test shall be carried out by three series of five consecutive tests using a different operator for
each series.
The compacted material of the test surface shall be loosened before starting of the whole test procedure.
The compacted material of the test surface shall not be loosened between the three measuring cycles.
For the measurement duration t , the surface of the test track L = 5,60 m is compacted by the machine in
M AB
forward operation. Subsequently the machine is moved back to the starting point.
Before starting the measurement, the machine operating temperature as defined by the manufacturer shall
be reached.
The measurement shall start when the middle of the machine is in line with point A and stops at point B of
the measuring stretch (see Figure A.1). In all cases the compaction shall go on along the whole stretch of
gravel. Therefore, it shall be ensured that the machine works with the full compaction power within the
measuring distance.
The root-mean-square (r.m.s.) values of the sound pressure levels shall be taken for each measurement over
the measurement duration (see Figure A.1).
A.2.4 Repetition of the test and calculation of the sound power level
The A-weighted sound power level shall be determined at least three times. If at least two of the
determined values do not differ by more than 1 dB, further measurements are not necessary. Otherwise the
measurements shall be continued until two values differing by no more than 1 dB are obtained.
The A-weighted sound power level to be used for calculating the sound power level to be declared is the
arithmetic mean of both highest values that do not differ by more than 1 dB.
A.3 Determination of the A-weighted emission sound pressure level at the operator’s
position
A.3.1 General
This annex specifies additional requirements for the determination of the A-weighted emission sound
pressure level of vibratory plates and vibratory rammers according to ISO 11201:2010 with grade2 of
accuracy.
A.3.2 Operator’s position
For direct-controlled non-riding machines, the position of the operator shall be as specified in Figure A.1.
For remote-controlled machines, the position of the operator shall be as specified in Figure A.2.
A.3.3 Test procedure
The test shall be carried out according to A.2.3.
During the whole test, the machine shall be operated by the same person. The person shall be skilled in
handling and operating the machine.
The machine shall be guided with both hands during measurement. Gripping-, feed-, and guiding-forces
appropriate to usual operation shall be applied.
A.3.4 Repetition of the test and calculation of the emission sound pressure level
The sound pressure level shall be measured at least three times at each microphone position. If at least two
of the measured values do not differ by more than 1 dB, further measurements are not necessary. Otherwise
the measurements shall be continued until two values differing by no more than 1 dB are obtained. The
A-weighted emission sound pressure level to be used is the arithmetic mean of the two highest values that
do not differ by more than 1 dB.
A.3.5 Determination of emission sound pressure spectra
If required, sound pressure spectra at the work station can be registered in accordance with ISO 11201:2010
at microphone position 14 (right ear, see Figures A.1 and A.2).
A.3.6 Sound pressure level as a function of time
If required, the sound pressure level can be recorded as a function of time at microphone position 14 (right ear).
A.4 Installation and mounting conditions
A.4.1 General
The machines shall be tested during actual operation on a course of gravel according to A.2. Testing may be
carried out outdoors or in a room fulfilling the requirements on test environment of ISO 3744:2010.
A.4.2 Design of the test surface
The compression ground shall have the following characteristics:
— dry gravel with sufficient hardness of a mean gravel diameter of 16 mm (particle size 10 mm to 22 mm),
see grading curve in Figure A.3;
— the gravel shall be replaced if the mean gravel diameter has decreased by 30 % or more;
— the dumping height of the gravel shall be at least 0,50 m due to the depth effect of the compacting
machines;
— the test course of gravel shall have the same horizontal level as the sound-reflecting surface being
rammed in order to prevent the gravel from creeping.
Key
X grain size 3 fine grain
Y percentage of mass of the total volume 4 middle grain
1 screening gravel 5 coarse grain
2 gravel size
Figure A.3 — Grading-size diagram of the material to be compacted (gravel)
A.4.3 Design of the test site
The test course of gravel shall be designed according to Figure A.4.
A sound-reflecting material (e.g. concrete, closed-pore asphalt or steel plates) of at least 10 m × 10 m and a
zone with no reflecting obstacles of at least 25 m × 25 m are required around the course of gravel.
Dimensions in metres
Key
b
A start Hard sound-reflecting plane 10 m × 10 m.
c
B end Plane without reflecting obstacles 25 m × 25 m.
L measuring length
AB
2, 4, 6, 8, 10, 12 microphone positions for sound power
level determination
a
Gravel-test course (depth > 0,50 m).
Figure A.4 — Test site and arrangement with test track
A.5 Operating conditions
Operating conditions are specified in Table A.2.
Table A.2 — Operating conditions
Reservoir of sprinkler-sys- Reservoirs, if any, shall be half-filled with water. The sprinkler facility shall not be
tem: switched on.
Fuel tank: The fuel tank shall be half-filled.
Warm-up period: The machine shall be warmed up under normal operation before measurement.
Engine speed: The engine shall be at the rated speed ±5 % as specified by the manufacturer.
Centrifugal force and Where the centrifugal force is adjustable, the maximum setting shall be selected. Ram-
stroke: mers shall be operated at maximum piston stroke.
Forward-working speed: The maximum forward-working speed shall be selected.
A.6 Uncertainty
The measurement uncertainty and, in the case of series machines, the uncertainty due to production
variations shall be considered when determining the value of the A-weighted sound power level and that of
the A-weighted emission sound pressure level at the operator’s position.
Current experience shows that the total uncertainty (measurement plus production) K for the A-weighted
WA
sound power levels and K = for the A-weighted emission sound pressure level of vibratory plates and
pA
vibratory rammers is less than the values given in Table A.3.
Table A.3 — Uncertainties applicable to gravel course
K K
WA pA
in dB(A) in dB(A)
Vibratory rammers 1,5 to 2,5 2,5 to 3,5
Vibratory plates 1,5 to 2,5 2,5 to 3,0
A.7 Information to be recorded
ISO 3744:2010 and ISO 11201:2010 shall apply with the following additions:
— type and engine rating;
— engine speed;
— centrifugal force and piston-stroke;
— working speed during measurement;
— measurement duration t for each measurement;
M
— tallness of the operating personnel;
— grading curve of the gravel;
— description of the test environment;
— A-weighted sound pressure levels from each of the three significant measurements at the operator's
position and the resulting emission sound pressure level;
— A-weighted sound power level from each of the three significant measurements and the resulting sound
power level as sound power value;
— sound pressure spectra, where appropriate;
— sound pressure level as a function of time, where appropriate;
— place, date of measurement, test laboratory and person responsible.
A.8 Information to be reported
ISO 3744:2010 and ISO 11201:2010 shall apply with the following additions:
— type and engine rating;
— engine speed;
— centrifugal force and piston-stroke;
— working speed during measurement;
— measurement duration t for each measurement;
M
— tallness of the operating personnel;
— grading curve of the gravel;
— description of the test environment;
— A-weighted sound pressure levels from each of the three significant measurements at the operator's
position and the resulting emission sound pressure level;
— A-weighted sound power level from each of the three significant measurements and the resulting sound
power level as sound power value;
— sound pressure spectra, where appropriate;
— sound pressure level as a function of time, where appropriate;
— place, date of measurement, test laboratory and person responsible.
The test report shall include the statement that the sound power level and the emission sound pressure
level at the operator's position have been determined entirely in accordance with the specifications of this
annex. The reported A-weighted sound power level of the machine under test and A-weighted emission
sound pressure level at the operator's position shall be rounded down or up to the nearest integral value in
dB (< 0,5 round down, ≥ 0,5 round up).
A.9 Declaration and verification of noise emission values
The noise declaration shall explicitly state that the noise emission values have been obtained according
to this noise test code. The content of the noise declaration and the values obtained shall be cited in the
operator’s manual, see ISO 20500-1:—, 6.2.2.
The declared A-weighted sound power level shall be the sum of the measured value and the associated
uncertainty K (see Table A.3).
WA
NOTE 1 The respective uncertainty KWA is the difference between the A-weighted sound power level declared and
the associated measured value as stated by the manufacturer in the operator's manual. Guidance for the determination
of the uncertainty K can be found in either ISO 3744:2010 or ISO 4871:1996, or in the guidelines for the application
WA
of the directive 2000/14/EC.
The declared A-weighted emission sound pressure level shall be the sum of the measured value and the
associated uncertainty K (see Table A.3).
pA
NOTE 2 The respective uncertainty K is the difference between the A-weighted sound pressure level declared and
pA
the associated measured value as stated by the manufacturer in the operator's manual. Guidance for the determination of
the uncertainty K , can be found in either ISO 11200:2014+Amd 1:2018, ISO 11201:2010 or ISO 11202:2010+Amd 1:2020.
pA
Any verification shall be done using this noise test code. If the value measured during verification is less
than or equal to the declared value, the declared value is confirmed.
The noise test for verification shall be carried out in the same operating conditions as those use
...
ISO/TC 195
Secretariat: SAC
Date: 2024-10-302025-01-16
Mobile road construction machinery — Safety —
Part 4:
Specific requirements for compaction machines
Machines mobiles pour la construction de routes — Sécurité —
Partie 4: Prescriptions spécifiques pour machines de compactage
FDIS stage
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 the internet or an intranet, without prior written permission. Permission can be requested from either ISO
at the address below or ISO’s member body in the country of the requester.
ISO copyright office
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Phone: + 41 22 749 01 11
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Published in Switzerland
ii
Contents
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Safety requirements and/or protective/risk reduction measures . 2
4.1 General . 2
4.2 Visibility . 3
4.3 Remote control . 3
4.4 Starting . 3
4.5 Stopping . 3
4.6 Operation and handling . 4
4.7 Operator's places . 4
4.8 Protection . 4
4.9 Safety and reliability of control systems . 4
4.10 Electrical and electronic systems . 4
4.11 Noise . 5
4.12 Vibration . 5
5 Verification of the safety requirements and/or protective/risk reduction measures . 5
6 Information for use — Operator's manual . 6
Annex A (normative) Noise test code for vibratory plates and vibratory rammers . 8
Annex B (normative) Measurement of the hand-arm vibration of hand-guided vibratory ground
compaction machines . 25
Annex C (normative) Noise test code for vibratory plates exceeding a working width of 1 m . 33
Annex D (informative) List of significant hazards . 43
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered . 46
Bibliography . 51
iii
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 documentsdocument should be noted. This document was drafted in accordance with the editorial rules
of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawnISO draws attention to the possibility that some of the elementsimplementation of this
document may beinvolve the subjectuse 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. Details of any patent rights identified during the development of the
document will be in the Introduction and/or on the ISO list of patent declarations received (see ).
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 195, Building construction machinery and
equipment, in collaboration with the European Committee for Standardization (CEN) Technical Committee
CEN/TC 151, Construction equipment and building material machines - Safety, in accordance with the
Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
A list of all parts in the ISO 20500 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
Introduction
This document is a type C standard as stated in 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 organisations, market surveillance etc.).
Others can be affected by the level of machinery safety achieved with the means of the document by the above-
mentioned stakeholder groups:
— 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.
The machinery concerned and the extent to which hazards, hazardous situations or hazardous events are
covered are indicated in the Scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B standards,
the provisions of this type C standard take precedence over the provisions of the other standards, for machines
that have been designed and built according to the provisions of this type C standard.
v
Mobile road construction machinery — Safety —
Part 4:
Specific requirements for compaction machines
1 Scope
This document, together with ISO 20500-1:—, deals with all significant hazards, hazardous situations and
events relevant to compaction machines when used as intended and under the conditions of misuse which are
reasonably foreseeable by the manufacturer (see Annex D) associated with the whole lifetime of the machine
as described in ISO 12100:2010, 5.4.
The requirements of this document are complementary to the common requirements formulated in
ISO 20500-1:—. This document does not repeat the requirements of ISO 20500-1:— but supplements or
modifies the requirements for compaction machines.
This document deals with vibratory plates and vibratory rammers only.
This document does not deal with compaction machines with ride-on operators.
Lightning as a significant and relevant hazard is not covered in this document.
This document is not applicable to compaction machines manufactured before the date of its publication.
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 3744:2010, Acoustics — Determination of sound power levels and sound energy levels of noise sources using
sound pressure — Engineering methods for an essentially free field over a reflecting plane
ISO 5349-1:2001, Mechanical vibration — Measurement and evaluation of human exposure to hand-transmitted
vibration — Part 1: General requirements
ISO 5805:1997, Mechanical vibration and shock — Human exposure — Vocabulary
ISO 8041-1:2017, Human response to vibration — Measuring instrumentation — Part 1: General purpose
vibration meters
ISO 11201:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound
pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane
with negligible environmental corrections
ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 12508:1994, Earth-moving machinery — Operator station and maintenance areas — Bluntness of edges
ISO 13849-1:2023, Safety of machinery — Safety-related parts of control systems — Part 1: General principles
for design
ISO 20500-1:—, Mobile road construction machinery — Safety — Part 1: Common requirements
ISO 20643:2005+Amd 1:2012, Mechanical vibration — Hand-held and hand-guided machinery — Principles for
evaluation of vibration emission — Amendment 1: Accelerometer positions
IEC 60529:1989+AMD1:1999+AMD2:2013, CSV, Degrees of protection provided by enclosures (IP code)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12100:2010, ISO 20500-1:—,
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 3.1
compaction machine
machine intended to densify materials, e.g. rock fills, soil or asphalt surfacing, through a tamping, percussive
or vibrating action of the working tool or a combination of these actions
Note 1 to entry: It can be self-propelled, towed or carried as attachment to a carrying machine. A compaction machine
can be controlled by direct control of an operator in physical contact with the machine (standing on the machine or
walking behind operating the controls directly mounted on the machine), or indirect control without physical contact of
an operator with the machine (through wired or wireless remote control).
3.2 3.2
vibratory plate
compaction machine (3.1) with mainly flat base-plate which is transposed into vibration and moves into a
predominantly horizontal direction by directional oscillation
Note 1 to entry: The compaction of materials is performed through an oscillating action of the working tool.
Note 2 to entry: ISO 19433:2008 provides a methodology for a further sub-classification of vibratory plates.
3.3 3.3
vibratory rammer
compaction machine (3.1) with mainly a flat foot-plate (shoe), which is made to move in a predominantly
vertical direction by displacement
Note 1 to entry: The compaction of materials is performed through a percussive or a tamping action of the working tool
or a combination of them.
4 Safety requirements and/or protective/risk reduction measures
4.1 General
4.1.1 Context
Compaction machines shall conform to the safety requirements and/or protective/risk reduction measures of
this clause. In addition, the machines shall be designed according to the principles of ISO 12100:2010 for
relevant but not significant hazards which are not dealt with by this document.
4.1.2 Specific relation to ISO 20500-1
Compaction machines shall conform to the requirements of ISO 20500-1:—, as far as not modified or replaced
by the requirements of this document.
The following subclauses of ISO 20500-1:— do not apply:
— ISO 20500-1:—, 4.3.4 Steering system;
— ISO 20500-1:—, 4.3.5 Tyres and rims;
— ISO 20500-1:—, 4.4 Operator stations;
— ISO 20500-1:—, 4.5 Operator's seat;
— ISO 20500-1:—, 4.6.2.5 Travel control on ride-on mobile road construction machines;
— ISO 20500-1:—, 4.6.2.6 Pedals;
— ISO 20500-1:—, 4.8 Conveyors;
— ISO 20500-1:--,:—, Annex D and Annex E.
4.2 Visibility
ISO 20500-1:—, 4.2 and Annex G doesdo not apply.
4.3 Remote control
ISO 20500-1:—, 4.6.2.4 shall apply with the following addition:
All travel movements shall be switched off automatically by the receiver if the distance between the
transmitter hold by the operator and the machine is less than 2 m or remote-controlled machines shall be
equipped with an emergency stop.
For infrared remote controls, the beam angles shall not exceed horizontally ±30°.
NOTE It is intended that this measure limits the possibility of a command being unintentionally issued due to
reflecting walls or obstacles.
4.4 Starting
ISO 20500-1:—, 4.7.1 shall apply with the following exception:
— the requirement for a neutral start function does not apply to vibratory plates and vibratory rammers if
they are furnished with a centrifugal clutch in their driving system;
— the requirement for prevention of unauthorized access to engine/motor start does not apply to machines
furnished with a mechanical starter (e.g. recoil starter, crank handle).
4.5 Stopping
4.5.1 General
ISO 20500-1:—, 4.7 shall apply with the following exceptions:
— hold-to-run control for forward and reverse function is not required for vibratory plates and vibratory
rammers;
— an emergency stop is not required for vibratory plates and vibratory rammers.
ISO 20500-1:—, 4.7.4 does not apply.
4.5.2 Stopping device
For vibratory plates and vibratory rammers equipped with a centrifugal force clutch a separate means for
stopping the movement is not required.
4.6 Operation and handling
ISO 20500-1:—, 4.3.2.3.2 applies with following modification:
Tie-down points are not required for machines with an operating mass < 300 kg, if structural parts of the
machine can be used for tie-down.
ISO 20500-1:—, 4.3.3 applies with the following exception:
The 3rd paragraph in ISO 20500-1:—, 4.3.3 does not apply.
4.7 Operator's places
ISO 20500-1:—, 4.4 and 4.5 do not apply.
The operator´s place(s) shall meet the following minimum requirements:
— edges shall be shaped in accordance with ISO 12508:1994;
— the engine exhaust gas shall be directed away from the operator's place(s).
4.8 Protection
ISO 20500-1:—, 4.10 does not apply, with the exception of ISO 20500-1:—, 4.10.2.1.
4.9 Safety and reliability of control systems
For bidirectional vibratory plates ISO 20500-1:—, 4.6.3 applies with the exemption, that requirements set out
in ISO 20500-1:—, Annex F are restricted to point 2 "(driving) movement/travelling function".
For rammers and single-direction vibratory plates ISO 20500-1:—, 4.6.3 does not apply.
NOTE Kinetic energy of rammers and single-direction vibratory plates is limited. In accordance with ISO 13849-1:—
,:2023, Figure A.1 the required performance level can be lowered.
4.10 Electrical and electronic systems
4.10.1 4.10.1 Degree of protection
ISO 20500-1:—, 4.17.2 applies with following modification:
Electronic controls, connectors in control circuits, multi-pin connectors and control switches installed in the
exterior of the machine or directly exposed to the environment, shall have a minimum protection of IP22 for
switchgear assembly casing and IP23 for electrical engine casing of
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV.
4.10.2 4.10.2 Batteries
ISO 20500-1:—, 4.17.4 shall apply with the following exceptions:
The requirement for handles and/or grips on batteries does not apply to batteries < 7.,5 kg.
4.11 Noise
4.11.1 Noise measurement of vibratory plates and vibratory rammers
ISO 20500-1:—, 4.19 shall apply with the following additions:
The noise emission of vibratory plates and vibratory rammers shall be determined according to Annex A or
Annex C.
For compaction machines, the main sources of noise are the engine and the working process (compaction).
4.12 Vibration
4.12.1 Vibration measurement of hand-guided machines
ISO 20500-1:—, 4.20 shall apply with the following additions:
The hand-arm vibration of hand-guided machines shall be determined according to Annex B.
5 Verification of the safety requirements and/or protective/risk reduction
measures
Safety requirements and/or protective/risk reduction measures of Clauses 4 and 6 shall be verified according
to Table 1.
Table 1 sets out verification methods which shall be applied for each safety requirement in this document.
Where X(s) is indicated in the Table, the corresponding verification method(s) shall be applied.
Table 1 shall be read in conjunction with the corresponding clauses/subclauses.
Table 1Table 1 applies in addition to ISO 20500-1:—, Table 3 of Part 1.
Table 1 includes the following verification methods:
a) calculation: to establish that the requirements of this document have been met;
b) visual verification: to establish that something is present (e.g. a guard, a marking, a document);
c) measurement: to show that the required numerical values have been met (e.g. geometric dimensions,
safety distances, resistance of insulation of the electric circuits, results of physical tests);
d) functional tests: to show that the adequate signals intended to be forwarded to the main control system
of the complete machine are available and conform to the requirements and the technical documentation;
e) special verification: by reference to a standard which is mentioned in the corresponding clause/subclause.
Table 1 — Verification of safety requirements and/or protective/risk reduction measures
Clause/S Title a) b) c) d) e)
ubclause Cal Vis Me Fu Spec
number cul ual asu nct ial
ati ver re ion verif
on ific me al icati
ati nt tes on
on t
4 Safety requirements and/or protective/risk reduction measures
4.1 General
4.1.1 Context X
4.1.2 Specific relation to ISO 20500-1 X
4.2 Visibility
4.3 Remote control X X X
4.4 Starting X X
4.5 Stopping
4.5.1 General X
4.5.2 Stopping device X
4.6 Operation and handling X X
4.7 Operator´s places X X
4.8 Protection X
4.9 Safety and reliability of control systems X
4.10 Electrical and electronic systems
4.10.1 Degree of protection X X
4.10.2 Batteries X X X
4.11 Noise
4.11.1 Noise measurement of vibratory plates and vibratory rammers X X
4.12 Vibration
4.12.1 Vibration measurement of hand-guided machines X X
6 Information for use X X
Annex A Noise test code for vibratory plates and vibratory rammers X X
Annex B Measurement of the hand-arm vibration of hand-guided vibratory X X
ground compaction machines
Annex C Noise test code for vibratory plates exceeding a working width of 1 m X X
This table applies in addition to Table 3 of Part 1.
86 Information for use — Operator's manual
ISO 20500-1:—, 6.2 shall apply with the following addition:
— instructions for the proper use including cleaning and maintenance of the water sprinkler system;
— safe procedure for transporting the machine;
— for remote/pedestrian-controlled machines a description of the operator’s place; additional information
for remote controls:
— data on performance and operating limits;
— instructions on actuation;
— a description of the actuation equipment;
— information regarding the assigned operator's location and specification if the actuation of controls
from the operator's place/station which is on the opposite side does not correspond with the
intended/expected direction of the machine movement;
— instructions concerning safe operation (changing the battery, cleaning, reflections, encoding, etc.);
— instructions on action in the event of the occurrence of faults;
— the minimum distance between the machine and the operator shall be 2 m;
— for vibratory rammers a warning that the stability of the machine is limited on uneven surfaces or
when using a narrow ramming plate, as well as an instruction to always operate the machine with
two hands.
Annex A
(normative)
Noise test code for vibratory plates and vibratory rammers
A.1 General
This noise test code specifies all the information necessary to carry out efficiently and under standardised
conditions the determination, declaration and verification of the noise emission characteristics of vibratory
plates and vibratory rammers.
Noise emission characteristics include emission sound pressure levels at workstations and the sound power
level. The determination of those quantities is necessary for:
— manufacturers to declare the noise emitted;
— comparing the noise emitted by machines in the family concerned;
— purposes of noise control at the source at the design stage;
— users to carry out their risk assessment with the help of emission sound pressure levels at operator's
station.
The use of this noise test code ensures reproducibility of the determination of the noise emission
characteristics within specified limits determined by the grade of accuracy of the basic noise-measurement
method used. Noise-measurement methods allowed by this document are engineering methods (grade 2).
Operating and mounting conditions for the determination of noise emission (according to this annex) and
hand-arm vibration (according to Annex B) are identical. It is therefore possible to record the noise emission
and the hand-arm vibration simultaneously during one measurement. The measuring effort is thereby
reduced.
Noise emission of machines exceeding a working width of 1 m shall be determined according to Annex C.
NOTE 1 Tests conducted with machines exceeding a working width of 1 m according to this annex lead to
irreproducible results due to reflection by the apron of the test course.
NOTE 2 The noise evaluation procedures as laid down in this document aim at ensuring the reproducibility of the
measurements of the noise emission of the machine. This determination does not necessarily reflect the noise emission
during operation on construction sites.
NOTE 3 The sound pressure spectra can be registered at microphone position 10 in accordance with ISO 3744:2010,
8.7.
NOTE 4 The sound pressure level can be recorded as a function of time at microphone position 10.
A.2 Determination of the A-weighted sound power level
A.2.1 General
This annex specifies additional requirements for the determination of the A-weighted sound power level
according to ISO 3744:2010.
For all measurements carried out under free field over a reflecting plane conditions according to
ISO 3744:2010, the environmental correction factor K shall be set to 0.
2A
A.2.2 Measurement surface
A.2.2.1 Shape and size of the measurement surface
The measurement surface for determining the A-weighted sound power level shall be a hemisphere of radius
r = 4 m that is bounded by the plane sound-reflecting surface (see Figures A.1 and A.2).
NOTE Figure A.1: Figure A.1 defines the test positions and shows a vibratory plate. It also applies to vibratory
rammers.
A.2.2.2 Microphone positions
Six microphone positions are specified on the hemisphere (see Figures A.1, A.2 and Table A.1).
Dimensions in metres
Key
A start
B end
LAB measuring length (LAB = 5,60 m)
2, 4, 6, 8, 10, 12 microphone positions for sound power level determination (see Table A.1)
13, 14 microphone positions for emission sound pressure level determination
a
Gravel-test course (depth > 0,50 m).
b
Hard reflecting plane = 10 m × 10 m.
Figure A.1 — Arrangement of test positions for hand-guided vibratory plates and hand-guided
vibratory rammers
The measuring travel time in seconds is calculated according to Formula (A.1):
𝐿𝐿
AB
𝑡𝑡 = (A.1)
F
𝑣𝑣
F
where
v is the working speed in m/s;
F
t is the measuring travel time, which equals the measuring time t .
F M
Dimensions in metres
Key
A start
B end
LAB measuring length (LAB = 5,60 m)
2, 4, 6, 8, 10, 12 microphone positions for sound power level determination (see Table A.1)
13, 14 microphone positions for emission sound pressure level determination
a
Gravel-test course (depth > 0,50 m).
b
Hard reflecting plane = 10 m × 10 m.
Figure A.2 — Arrangement of test positions for remote controlled vibratory plates
Table A.1 — Coordinates of microphones
Coordinates in m
Measuring point
x y z
2 2,8 2,8 1,5
4 −2,8 2,8 1,5
6 −2,8 −2,8 1,5
8 2,8 −2,8 1,5
10 −1,08 2,6 2,84
12 1,08 −2,6 2,84
A.2.3 Test procedure
The machine shall be moved along the centre line of the test course as in usual operation.
For the measurements, the machine shall be in accordance with the manufacturer’s specifications (e.g. if the
extension plates of a vibratory plate are attached on delivery, then they shall remain screwed on during the
measurement).
The drawbar if any shall be freely movable between the upper and lower stops.
Simultaneous measurement at all microphone positions is preferred (consecutive measurements are also
possible and allowed).
The vibration test shall be carried out by three series of five consecutive tests using a different operator for
each series.
The compacted material of the test surface shall be loosened before starting of the whole test procedure.
The compacted material of the test surface shall not be loosened between the three measuring cycles.
For the measurement duration t , the surface of the test track L = 5,60 m is compacted by the machine in
M AB
forward operation. Subsequently the machine is moved back to the starting point.
Before starting the measurement, the machine operating temperature as defined by the manufacturer shall be
reached.
The measurement shall start when the middle of the machine is in line with point A and stops at point B of the
measuring stretch (see Figure A.1). In all cases the compaction shall go on along the whole stretch of gravel.
Therefore, it shall be ensured that the machine works with the full compaction power within the measuring
distance.
The root-mean-square (r.m.s.) values of the sound pressure levels shall be taken for each measurement over
the measurement duration (see Figure A.1).
A.2.4 Repetition of the test and calculation of the sound power level
The A-weighted sound power level shall be determined at least three times. If at least two of the determined
values do not differ by more than 1 dB, further measurements are not necessary. Otherwise the measurements
shall be continued until two values differing by no more than 1 dB are obtained.
The A-weighted sound power level to be used for calculating the sound power level to be declared is the
arithmetic mean of both highest values that do not differ by more than 1 dB.
A.3 Determination of the A-weighted emission sound pressure level at the
operator’s position
A.3.1 General
This annex specifies additional requirements for the determination of the A-weighted emission sound
pressure level of vibratory plates and vibratory rammers according to ISO 11201:2010 with grade2 of
accuracy.
A.3.2 Operator’s position
For direct-controlled non-riding machines, the position of the operator shall be as specified in Figure A.1.
For remote-controlled machines, the position of the operator shall be as specified in Figure A.2.
A.3.3 Test procedure
The test shall be carried out according to A.2.3.
During the whole test, the machine shall be operated by the same person. The person shall be skilled in
handling and operating the machine.
The machine shall be guided with both hands during measurement. Gripping-, feed-, and guiding-forces
appropriate to usual operation shall be applied.
A.3.4 Repetition of the test and calculation of the emission sound pressure level
The sound pressure level shall be measured at least three times at each microphone position. If at least two of
the measured values do not differ by more than 1 dB, further measurements are not necessary. Otherwise the
measurements shall be continued until two values differing by no more than 1 dB are obtained. The A-
weighted emission sound pressure level to be used is the arithmetic mean of the two highest values that do
not differ by more than 1 dB.
A.3.5 Determination of emission sound pressure spectra
If required, sound pressure spectra at the work station can be registered in accordance with ISO 11201:2010
at microphone position 14 (right ear, see Figures A.1 and A.2).
A.3.6 Sound pressure level as a function of time
If required, the sound pressure level can be recorded as a function of time at microphone position 14 (right
ear).
A.4 Installation and mounting conditions
A.4.1 General
The machines shall be tested during actual operation on a course of gravel according to A.2. Testing may be
carried out outdoors or in a room fulfilling the requirements on test environment of ISO 3744:2010.
A.4.2 Design of the test surface
The compression ground shall have the following characteristics:
— dry gravel with sufficient hardness of a mean gravel diameter of 16 mm (particle size 10 mm to 22 mm),
see grading curve in Figure A.3;
— the gravel shall be replaced if the mean gravel diameter has decreased by 30 % or more;
— the dumping height of the gravel shall be at least 0,50 m due to the depth effect of the compacting
machines;
— the test course of gravel shall have the same horizontal level as the sound-reflecting surface being rammed
in order to prevent the gravel from creeping.
Key
X grain size 3 fine grain
Y percentage of mass of the total volume 4 middle grain
1 screening gravel 5 coarse grain
2 gravel size
Figure A.3 — Grading-size diagram of the material to be compacted (gravel)
A.4.3 Design of the test site
The test course of gravel shall be designed according to Figure A.4.
A sound-reflecting material (e.g. concrete, closed-pore asphalt or steel plates) of at least 10 m × 10 m and a
zone with no reflecting obstacles of at least 25 m × 25 m are required around the course of gravel.
Dimensions in metres
Key
b
A start Hard sound-reflecting plane 10 m × 10 m.
c
B end Plane without reflecting obstacles 25 m × 25 m.
LAB measuring length
2, 4, 6, 8, 10, 12 microphone positions for sound power
level determination
a
Gravel-test course (depth > 0,50 m).
Figure A.4 — Test site and arrangement with test track
A.5 Operating conditions
Operating conditions are specified in Table A.2.
Table A.2 — Operating conditions
Reservoir of sprinkler- Reservoirs, if any, shall be half-filled with water. The sprinkler facility shall not be
system: switched on.
Fuel tank: The fuel tank shall be half-filled.
Warm-up period: The machine shall be warmed up under normal operation before measurement.
Engine speed: The engine shall be at the rated speed ±5 % as specified by the manufacturer.
Centrifugal force and Where the centrifugal force is adjustable, the maximum setting shall be selected.
stroke: Rammers shall be operated at maximum piston stroke.
Forward-working speed: The maximum forward-working speed shall be selected.
A.6 Uncertainty
The measurement uncertainty and, in the case of series machines, the uncertainty due to production variations
shall be considered when determining the value of the A-weighted sound power level and that of the A-
weighted emission sound pressure level at the operator’s position.
Current experience shows that the total uncertainty (measurement plus production) K for the A-weighted
WA
sound power levels and K = for the A-weighted emission sound pressure level of vibratory plates and
pA
vibratory rammers is less than the values given in Table A.3.
Table A.3 — Uncertainties applicable to gravel course
K K
WA pA
in dB(A) in dB(A)
Vibratory rammers 1,5 to 2,5 2,5 to 3,5
Vibratory plates 1,5 to 2,5 2,5 to 3,0
A.7 Information to be recorded
ISO 3744:2010 and ISO 11201:2010 shall apply with the following additions:
— type and engine rating;
— engine speed;
— centrifugal force and piston-stroke;
— working speed during measurement;
— measurement duration t for each measurement;
M
— tallness of the operating personnel;
— grading curve of the gravel;
— description of the test environment;
— A-weighted sound pressure levels from each of the three significant measurements at the operator's
position and the resulting emission sound pressure level;
— A-weighted sound power level from each of the three significant measurements and the resulting sound
power level as sound power value;
— sound pressure spectra, where appropriate;
— sound pressure level as a function of time, where appropriate;
— place, date of measurement, test laboratory and person responsible.
A.8 Information to be reported
ISO 3744:2010 and ISO 11201:2010 shall apply with the following additions:
— type and engine rating;
— engine speed;
— centrifugal force and piston-stroke;
— working speed during measurement;
— measurement duration t for each measurement;
M
— tallness of the operating personnel;
— grading curve of the gravel;
— description of the test environment;
— A-weighted sound pressure levels from each of the three significant measurements at the operator's
position and the resulting emission sound pressure level;
— A-weighted sound power level from each of the three significant measurements and the resulting sound
power level as sound power value;
— sound pressure spectra, where appropriate;
— sound pressure level as a function of time, where appropriate;
— place, date of measurement, test laboratory and person responsible.
The test report shall include the statement that the sound power level and the emission sound pressure level
at the operator's position have been determined entirely in accordance with the specifications of this annex.
The reported A-weighted sound power level of the machine under test and A-weighted emission sound
pressure level at the operator's position shall be rounded down or up to the nearest integral value in dB (< 0,5
round down, ≥ 0,5 round up).
A.9 Declaration and verification of noise emission values
The noise declaration shall explicitly state that the noise emission values have been obtained according to this
noise test code. The content of the noise declaration and the values obtained shall be cited in the operator’s
manual, see ISO 20500-1:—, 6.2.2.
The declared A-weighted sound power level shall be the sum of the measured value and the associated
uncertainty K (see Table A.3).
WA
NOTE 1 The respective uncertainty KWA is the difference between the A-weighted sound power level declared and
the associated measured value as stated by the manufacturer in the operator's manual. Guidance for the
Determinationdetermination of the uncertainty K , can be found in either ISO 3744:2010, or ISO 4871:1996, or in the
WA
guidelines for the application of the directive 2000/14/EC.
The declared A-weighted emission sound pressure level shall be the sum of the measured value and the
associated uncertainty K (see Table A.3).
pA
NOTE 2 The respective uncertainty KpA is the difference between the A-weighted sound pressure level declared and
the associated measured value as stated by the manufacturer in the operator's manual. Guidance for the
Determinationdetermination of the uncertainty K , can be found in either ISO 11200:2014+Amd 1:2018, ISO
pA
11201:2010 or ISO 11202:2010+Amd 1:2020.
Any verification shall be done using this noise test code. If the value measured during verification is less than
or equal to the declared value, the declared value is confirmed.
The noise test for verification shall be carried out in the same operating conditions as those used for the initial
noise test.
Annex B
(normative)
Measurement of the hand-arm vibration of hand-guided vibratory ground
compaction machines
B.1 General
In this annex, specifications are laid down for machines as a supplement to ISO 20643:2005+Amd 1:2012 for
hand-guided vibratory ground compaction machines (vibratory plates, vibratory rammers). Those
specifications serve to determine the characteristic vibration amplitudes under practical conditions. The
machines are characterised by their possessing a module for producing vibration, so as to cause compacting
of the undersurface.
This annex contains the same conditions for operation and arrangement for all hand-guided vibratory
machines as they apply to the determination of sound power level for those hand-guided vibratory machines
as described in Annex A.
B.2 Quantities to be measured
B.2.1 r.m.s. value of the weighted acceleration
The quantities to be measured are the r.m.s. values of the weighted vibration accelerations a , , a , and
xhw I yhw i
, of the i = 1 to 3 measurements of a test run in accordance with ISO 20643:2005+Amd 1:2012. Those are
a
zhw i
formed according to Formula (B.1).
3 3 3 3
1 1 1 1
𝑎𝑎¯ = � 𝑎𝑎 ;𝑎𝑎¯ = � 𝑎𝑎 ;𝑎𝑎¯ = � 𝑎𝑎 ;𝑎𝑎¯ = � 𝑎𝑎 ;𝑎𝑎¯ =
xhw xhw,𝑖𝑖 yhw yhw,𝑖𝑖 zhw xhw,𝑖𝑖 yhw yhw,𝑖𝑖 zhw
3 3 3 3
𝑖𝑖=𝑙𝑙 𝑖𝑖=𝑙𝑙 𝑖𝑖=𝑙𝑙 𝑖𝑖=𝑙𝑙
� 𝑎𝑎 (B.1)
zhw,𝑖𝑖
𝑖𝑖=𝑙𝑙
for each co-ordinate into the result of the test run. Since in the case of the machines under investigation, the
vibration accelerations in the x-, y- and z-co-ordinates often produce values of the same magnitude, the
acceleration sum of the test run is also formed according to Formula (B.2).
2 2 2 2 2 2
𝑎𝑎 = 𝑎𝑎¯ +𝑎𝑎¯ +𝑎𝑎¯ 𝑎𝑎¯ +𝑎𝑎¯ +𝑎𝑎¯ (B.2)
� �
𝑣𝑣h𝑤𝑤 𝑥𝑥h𝑤𝑤 𝑦𝑦h𝑤𝑤 𝑧𝑧h𝑤𝑤 𝑥𝑥h𝑤𝑤 𝑦𝑦h𝑤𝑤 𝑧𝑧h𝑤𝑤
B.2.2 Frequency analysis
If required, frequency analyses from the acceleration time signals can be determined for one measurement
direction (x-axis) or for all directions of measurement. The analyses shall not be weighted with the hand-arm
filter.
B.2.3 Time records
If required, the variations of the signals with time can be recorded for one measurement direction (x-axis) or
for all three measurement directions.
B.2.4 Other quantities to be measured
a) speed of engine (see Table A.2);
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