SIST EN ISO 28927-10:2012

SLOVENSKI STANDARD
SIST EN ISO 28927-10:2012
01-januar-2012
1DGRPHãþD
SIST EN 28662-2:2000
SIST EN 28662-2:2000/A1:2000
SIST EN 28662-2:2000/A2:2002
SIST EN 28662-3:2000
SIST EN 28662-3:2000/A1:2000
SIST EN 28662-3:2000/A2:2002
SIST EN 28662-5:2000
SIST EN 28662-5:2000/A1:2000
SIST EN 28662-5:2000/A2:2004
5RþQDSUHQRVQDHOHNWULþQDRURGMD3UHVNXVQHPHWRGH]DYUHGQRWHQMHRGGDMDQMD
WUHVOMDMHYGHO8GDUQLYUWDOQLNLNODGLYDLQORPLOQLNL,62
Hand-held portable power tools - Test methods for evaluation of vibration emission - Part
10: Percussive drills, hammers and breakers (ISO 28927-10:2011)
Handgehaltene motorbetriebene Maschinen - Messverfahren zur Ermittlung der
Schwingungsemission - Teil 10: Bohrhämmer, Schlaghämmer und Aufbruchhämmer
(ISO 28927-10:2011)
Ta slovenski standard je istoveten z: EN ISO 28927-10:2011
ICS:
25.140.01 5RþQDRURGMDQDVSORãQR Hand-held tools in general
SIST EN ISO 28927-10:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 28927-10:2012

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SIST EN ISO 28927-10:2012


EUROPEAN STANDARD
EN ISO 28927-10

NORME EUROPÉENNE

EUROPÄISCHE NORM
April 2011
ICS 13.160; 25.140.10
English Version
Hand-held portable power tools - Test methods for evaluation of
vibration emission - Part 10: Percussive drills, hammers and
breakers (ISO 28927-10:2011)
Machines à moteur portatives - Méthodes d'essai pour Handgehaltene motorbetriebene Maschinen -
l'évaluation de l'émission de vibrations - Partie 10: Messverfahren zur Ermittlung der Schwingungsemission -
Marteaux à percussion, perforateurs et brise-béton (ISO Teil 10: Bohrhämmer, Schlaghämmer und
28927-10:2011) Aufbruchhämmer (ISO 28927-10:2011)
This European Standard was approved by CEN on 14 April 2011.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 28927-10:2011: E
worldwide for CEN national Members.

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SIST EN ISO 28927-10:2012
EN ISO 28927-10:2011 (E)
Contents Page
Foreword .3
Annex ZA (informative) Relationship between this International Standard and the Essential
Requirements of EU Directive 2006/42/EC .4

2

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SIST EN ISO 28927-10:2012
EN ISO 28927-10:2011 (E)
Foreword
This document (EN ISO 28927-10:2011) has been prepared by Technical Committee ISO/TC 118
"Compressors and pneumatic tools, machines and equipment" in collaboration with Technical Committee
CEN/TC 231 “Mechanical vibration and shock” the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by October 2011, and conflicting national standards shall be withdrawn at
the latest by October 2011.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive.
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this document.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 28927-10:2011 has been approved by CEN as a EN ISO 28927-10:2011 without any
modification.
3

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SIST EN ISO 28927-10:2012
EN ISO 28927-10:2011 (E)
Annex ZA
(informative)

Relationship between this International Standard and the Essential
Requirements of EU Directive 2006/42/EC
This International Standard has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association to provide a means of conforming to Essential Requirements of the
New Approach Directive 2006/42/EC on machinery.
Once this standard is cited in the Official Journal of the European Union under that Directive and has been
implemented as a national standard in at least one Member State, compliance with the clauses of this
standard confers, within the limits of the scope of this standard, a presumption of conformity with the
corresponding Essential Requirements of that Directive excerpt ER 2.2.1.1 and associated EFTA regulations.
WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling
within the scope of this standard.


4

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SIST EN ISO 28927-10:2012

INTERNATIONAL ISO
STANDARD 28927-10
First edition
2011-04-15

Hand-held portable power tools — Test
methods for evaluation of vibration
emission —
Part 10:
Percussive drills, hammers and breakers
Machines à moteur portatives — Méthodes d'essai pour l'évaluation de
l'émission de vibrations —
Partie 10: Marteaux à percussion, perforateurs et brise-béton




Reference number
ISO 28927-10:2011(E)
©
ISO 2011

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SIST EN ISO 28927-10:2012
ISO 28927-10:2011(E)

COPYRIGHT PROTECTED DOCUMENT


©  ISO 2011
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland

ii © ISO 2011 – All rights reserved

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SIST EN ISO 28927-10:2012
ISO 28927-10:2011(E)
Contents Page
Foreword .iv
Introduction.vi
1 Scope.1
2 Normative references.1
3 Terms, definitions and symbols .2
3.1 Terms and definitions .2
3.2 Symbols.3
4 Basic standards and vibration test codes .3
5 Description of the family of machines .3
6 Characterization of vibration.7
6.1 Direction of measurement .7
6.2 Location of measurements.7
6.3 Magnitude of vibration.11
6.4 Combination of vibration directions.12
7 Instrumentation requirements .12
7.1 General .12
7.2 Mounting of transducers .12
7.3 Frequency weighting filter.12
7.4 Integration time.12
7.5 Auxiliary equipment .13
7.6 Calibration.13
8 Testing and operating conditions of the machinery.13
8.1 General .13
8.2 Operating conditions .13
8.3 Other quantities to be specified.14
8.4 Attached equipment, workpiece and task.14
8.5 Operator .19
9 Measurement procedure and validity.19
9.1 Reported vibration values .19
9.2 Declaration and verification of the vibration emission value .19
10 Measurement report.20
Annex A (informative) Model test report for percussive drills, hammers and breakers .21
Annex B (normative) Determination of uncertainty .23
Annex C (normative) Design of steel ball absorber .26
Bibliography.27

© ISO 2011 – All rights reserved iii

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SIST EN ISO 28927-10:2012
ISO 28927-10:2011(E)
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 28927-10 was prepared by Technical Committee ISO/TC 118, Compressors and pneumatic tools,
machines and equipment, Subcommittee SC 3, Pneumatic tools and machines.
ISO 28927-10 cancels and replaces ISO 8662-2:1992, ISO 8662-3:1992 and ISO 8662-5:1992, which have
been technically revised. It also incorporates the Amendments ISO 8662-2:1992/Amd.1:1999,
ISO 8662-3:1992/Amd.1:1999 and ISO 8662-5:1992/Amd.1:1999. The most important changes are
⎯ vibration measurement in three axes and at both hand positions,
⎯ new transducer positions,
⎯ improved definition of the transducer positions and orientation,
⎯ rock drills from ISO 8662-3, chipping hammers and riveting hammers from ISO 8662-2 are included, and
⎯ amended description of the energy absorber.
ISO 28927 consists of the following parts, under the general title Hand-held portable power tools — Test
methods for evaluation of vibration emission:
1)
⎯ Part 1: Angle and vertical grinders
2)
⎯ Part 2: Wrenches, nutrunners and screwdrivers
3)
⎯ Part 3: Polishers and rotary, orbital and random orbital sanders

1) Together with ISO 28927-4, replaces ISO 8662-4, Hand-held portable power tools — Measurement of vibrations at
the handle — Part 4: Grinders.
2) Replaces ISO 8662-7, Hand-held portable power tools — Measurement of vibrations at the handle — Part 7:
Wrenches, screwdrivers and nut runners with impact, impulse or ratchet action. All screwdrivers and nutrunners except for
one-shot tools now covered.
3) Replaces ISO 8662-8, Hand-held portable power tools — Measurement of vibrations at the handle — Part 8:
Polishers and rotary, orbital and random orbital sanders.
iv © ISO 2011 – All rights reserved

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SIST EN ISO 28927-10:2012
ISO 28927-10:2011(E)
4)
⎯ Part 4: Straight grinders
5)
⎯ Part 5: Drills and impact drills
6)
⎯ Part 6: Rammers
7)
⎯ Part 7: Nibblers and shears
⎯ Part 8: Saws, polishing and filing machines with reciprocating action and small saws with oscillating or
8)
rotating action
9)
⎯ Part 9: Scaling hammers and needle scalers
⎯ Part 10: Percussive drills, hammers and breakers
10)
⎯ Part 11: Stone hammers
11)
⎯ Part 12: Die grinders

4) Together with ISO 28927-1, replaces ISO 8662-4, Hand-held portable power tools — Measurement of vibrations at
the handle — Part 4: Grinders.
5) Replaces ISO 8662-6, Hand-held portable power tools — Measurement of vibrations at the handle — Part 6: Impact
drills. Non-impacting drills now covered.
6) Replaces ISO 8662-9, Hand-held portable power tools — Measurement of vibrations at the handle — Part 9:
Rammers.
7) Replaces ISO 8662-10, Hand-held portable power tools — Measurement of vibrations at the handle — Part 10:
Nibblers and shears.
8) Replaces ISO 8662-12, Hand-held portable power tools — Measurement of vibrations at the handle — Part 12: Saws
and files with reciprocating action and saws with oscillating or rotating action.
9) Together with ISO 28927-11, replaces ISO 8662-14, Hand-held portable power tools — Measurement of vibrations at
the handle — Part 14: Stone-working tools and needle scalers.
10) Together with ISO 28927-9, replaces ISO 8662-14, Hand-held portable power tools — Measurement of vibrations at
the handle — Part 14: Stone-working tools and needle scalers.
11) Under preparation. Replaces ISO 8662-13, Hand-held portable power tools — Measurement of vibrations at the
handle — Part 13: Die grinders. It also incorporates the Technical Corrigendum ISO 8662-13:1997/Cor.1:1998.
© ISO 2011 – All rights reserved v

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SIST EN ISO 28927-10:2012
ISO 28927-10:2011(E)
Introduction
This document is a type-C standard as stated in ISO 12100.
When requirements of this type-C standard are different from those which are stated in type-A or -B standards,
the requirements of this type-C standard take precedence over the requirements of the other standards for
machines that have been designed and built according to the requirements of this type-C standard.
The vibration test codes for portable hand-held machines given in ISO 28927 (all parts) are based on
ISO 20643, which gives general specifications for the measurement of the vibration emission of hand-held and
hand-guided machinery. ISO 28927 (all parts) specifies the operation of the machines under type-test
conditions and other requirements for the performance of type tests. The structure/numbering of its clauses
follows that of ISO 20643.
The basic principle for transducer positioning first introduced in the IEC 60745 series of European standards is
followed, representing a deviation from ISO 20643 for reasons of consistency. The transducers are primarily
positioned next to the hand in the area between the thumb and the index finger, where they give the least
disturbance to the operator gripping the machine.
It has been found that vibrations generated by percussive machines vary considerably in typical use. For
percussive machines, the impacting action is the dominating source of vibration and the variation in the result
is affected by the quality of the working/inserted tool, the worked material and the skill of the operator.
The values obtained are type-test values intended to be representative of the average of the upper quartile of
typical vibration magnitudes in real-world use of the machines. However, the actual magnitudes vary
considerably from time to time and depend on many factors, including the operator, the task and the inserted
tool or consumable. The state of maintenance of the machine itself might also be of importance. Under real
working conditions the influences of the operator and process can be particularly important at low magnitudes.
2
It is therefore not recommended that emission values below 2,5 m/s be used for estimating the vibration
2
magnitude under real working conditions. In such cases, 2,5 m/s is the recommended vibration magnitude for
estimating the machine vibration.
If accurate values for a specific work place are required, then measurements [according to ISO 5349
(all parts)] in that work situation could be necessary. Vibration values measured in real working conditions can
be either higher or lower than the values obtained using this part of ISO 28927.
Higher vibration magnitudes can easily occur in real work situations, caused by the use of excessively worn or
bent inserted tools.
The vibration test codes given in ISO 28927 (all parts) supersede those given in ISO 8662 (all parts) , which
has been replaced by the corresponding parts of ISO 28927 (see Foreword).
NOTE ISO 8662-11, Hand-held portable power tools — Measurement of vibrations at the handle — Part 11: Fastener
driving tools, could be replaced by a future part of ISO 28927.

vi © ISO 2011 – All rights reserved

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SIST EN ISO 28927-10:2012
INTERNATIONAL STANDARD ISO 28927-10:2011(E)

Hand-held portable power tools — Test methods for evaluation
of vibration emission —
Part 10:
Percussive drills, hammers and breakers
1 Scope
This part of ISO 28927 specifies a laboratory method for measuring hand-transmitted vibration emission at the
handles of hand-held power driven percussive machines with and without rotary action [portable rock drills,
plug hole drills, rotary hammers, breakers (e.g. pavement breakers, concrete breakers or road breakers),
riveting hammers, chipping hammers, pick hammers or similar]. It is a type-test procedure for establishing the
magnitude of vibration in the gripping areas of a machine fitted with an inserted tool bit.
This part of ISO 28927 is applicable to hand-held machines (see Clause 5), driven pneumatically or by other
means, intended for making holes in hard materials, such as rock and concrete. It is also applicable to
breakers intended to work downwards to break hard materials (concrete, rock, pavement, asphalt, etc.) and
for hammers intended to work in any direction to perform riveting or chiselling work. It is not applicable to
impact drills with direct mechanical impact mechanisms. This part of ISO 28927 is not applicable to jack leg
type rock drills and push feed rock drills, which are hand guided (the feed force is not applied by hand, but by
an additional device).
It is intended that the results be used to compare different models of the same type of machine.
NOTE To avoid confusion with the terms “power tool” and “inserted tool”, “machine” is used hereinafter for the former.
2 Normative references
The following referenced documents are indispensable for the application 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 2787, Rotary and percussive pneumatic tools — Performance tests
ISO 5349 (all parts), Mechanical vibration — Measurement and evaluation of human exposure to
hand-transmitted vibration
ISO 5391:2003, Pneumatic tools and machines — Vocabulary
ISO 17066, Hydraulic tools — Vocabulary
ISO 20643:2005, Mechanical vibration — Hand-held and hand-guided machinery — Principles for evaluation
of vibration emission
EN 12096, Mechanical vibration — Declaration and verification of vibration emission values
© ISO 2011 – All rights reserved 1

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SIST EN ISO 28927-10:2012
ISO 28927-10:2011(E)
3 Terms, definitions and symbols
For the purposes of this document, the terms and definitions given in ISO 5391, ISO 17066 and ISO 20643,
and the following apply.
3.1 Terms and definitions
3.1.1
rock drill
percussive power rotating machine with flushing for drilling holes in rock, concrete, etc.
NOTE 1 Adapted from ISO 5391:2003, definition 2.3.1.
NOTE 2 Light rock drills have a mass of u15 kg (inserted tool excluded when measured). Rock drills >15 kg are
defined as heavy rock drills.
3.1.2
rotary hammer
rotary percussive drill with spiral drill bit and without air flushing
[ISO 5391:2003, definition 2.3.2]
3.1.3
breaker
percussive machine for breaking up concrete, rock, brickwork and asphalt, etc.
NOTE 1 Adapted from ISO 5391:2003, definition 2.2.12.
NOTE 2 This type of machine is generally used in a vertical position and is characterized by a “T-handle” with the body
of the machine.
3.1.4
plug hole drill
rotating percussive machine with spiral or straight drill mainly intended for drilling in concrete, rock, bricks, etc.
NOTE Adapted from ISO 5391:2003, definition 2.3.3.
3.1.5
chipping hammer
chiselling hammer
percussive machine for chipping, caulking, trimming or fettling castings, welds, etc., normally using chisels or
inserted cutting/shaped tools
NOTE Adapted from ISO 5391:2003, definition 2.2.1.
3.1.6
riveting hammer
percussive machine for forming rivet heads
NOTE Adapted from ISO 5391:2003, definition 3.4.1.
3.1.7
pick hammer
percussive machine for light demolition or mine work
NOTE Adapted from ISO 5391:2003, definition 2.2.10.
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SIST EN ISO 28927-10:2012
ISO 28927-10:2011(E)
3.2 Symbols
Symbol Description Unit
root-mean-square (r.m.s.) single-axis acceleration value of the
2
a m/s
hw
frequency-weighted hand-transmitted vibration
vibration total value of frequency-weighted r.m.s. acceleration; is the

2
a root sum of squares of the a values for the three measured axes of m/s
hv hw
vibration
arithmetic mean value of a values of runs for one operator for one
hv
2
m/s
a
hv
hand position
arithmetic mean value of values for all operators for one hand
a
2
hv
a m/s

h
position
arithmetic mean value of a values for one hand position on several
h 2
m/s
a
h
machines
2
a declared vibration emission value m/s
hd
2
s standard deviation for a test series (for a sample, s) m/s
n−1
2
σ standard deviation of reproducibility (for a population, σ) m/s
R
C coefficient of variation for a test series —
v
2
K uncertainty m/s

4 Basic standards and vibration test codes
This part of ISO 28297 is based on the requirements of ISO 20643 and corresponds to its structure in respect
of clause subjects and numbering, except for the annexes.
Annex A presents a model test report, Annex B the means for determining the uncertainty, K, and Annex C
presents the design of a steel ball absorber.
5 Description of the family of machines
This part of ISO 28927 applies to hand-held machines for rotary percussive tools intended for making holes in
hard materials, such as rock and concrete. It also applies to breakers intended to work downwards to break
hard materials (concrete, rock, pavement, asphalt, etc.) and to hammers intended to work in any direction to
perform riveting or chiselling work.
Typical examples of breakers, hammers and drills covered by this part of ISO 28297 are shown in Figures 1
to 7.
© ISO 2011 – All rights reserved 3

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SIST EN ISO 28927-10:2012
ISO 28927-10:2011(E)

Figure 1 — Breaker/rock drill

Figure 2 — Rotary hammer
4 © ISO 2011 – All rights reserved

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SIST EN ISO 28927-10:2012
ISO 28927-10:2011(E)

Figure 3 — Large chipping hammer/plug hole drill

Figure 4 — Small chipping hammer
© ISO 2011 – All rights reserved 5

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SIST EN ISO 28927-10:2012
ISO 28927-10:2011(E)

Figure 5 — Pick hammer

Figure 6 — Chiselling hammer
6 © ISO 2011 – All rights reserved

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SIST EN ISO 28927-10:2012
ISO 28927-10:2011(E)

NOTE This example shows pistol grip.
Figure 7 — Riveting hammer
6 Characterization of vibration
6.1 Direction of measurement
The vibration transmitted to the hand shall be measured and reported for three directions of an orthogonal
coordinate system. At each hand position, the vibration shall be measured simultaneously in the three
directions shown in Figures 8 to 14.
6.2 Location of measurements
Measurement shall be made at the gripping zones, where the operator normally holds the machine and
applies the feed force. For machines intended for one-handed operation, it is only necessary to measure at a
single point.
The prescribed transducer location shall be as close as possible to the hand between the thumb and index
finger. This shall apply to both hand positions, with the machine held as in normal operation. Whenever
possible, measurements shall be made at the prescribed locations.
A secondary location is defined as being on the side of, and as close as possible to, the inner end of the
handle where the prescribed location is found. If the prescribed location of the transducer cannot be used, this
secondary location shall be used instead.
For breakers and rock drills with anti-vibration T-shaped handles of pivoting design, the transducer shall be
positioned in the middle of the handle. Due to the pivoting action, vibration values vary a lot along the length of
the handle and the centre of the handle is therefore regarded as being the most representative measurement
point. The
...