SIST EN ISO 28927-13:2022

SLOVENSKI STANDARD
oSIST prEN ISO 28927-13:2019
01-maj-2019
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Hand-held portable power tools - Test methods for evaluation of vibration emission - Part
13: Fastener driving tools (ISO/DIS 28927-13:2019)
Handgehaltene motorbetriebene Maschinen - Messverfahren zur Ermittlung der
Schwingungsemission - Teil 13: Eintreibgeräte (ISO/DIS 28927-13:2019)
Machines à moteur portatives - Mesurage des vibrations au niveau des poignées - Partie
13: Machines à enfoncer les fixations (ISO/DIS 28927-13:2019)
Ta slovenski standard je istoveten z: prEN ISO 28927-13
ICS:
13.160 Vpliv vibracij in udarcev na Vibration and shock with
ljudi respect to human beings
25.140.01 5RþQDRURGMDQDVSORãQR Hand-held tools in general
oSIST prEN ISO 28927-13:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 28927-13:2019

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oSIST prEN ISO 28927-13:2019
DRAFT INTERNATIONAL STANDARD
ISO/DIS 28927-13
ISO/TC 118/SC 3 Secretariat: SIS
Voting begins on: Voting terminates on:
2019-03-22 2019-06-14
Hand-held portable power tools — Test methods for
evaluation of vibration emission —
Part 13:
Fastener driving tools
Machines à moteur portatives — Mesurage des vibrations au niveau des poignées —
Partie 13: Machines à enfoncer les fixations
ICS: 13.160; 25.140.10
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
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USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 28927-13:2019(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2019

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oSIST prEN ISO 28927-13:2019
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COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
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
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Published in Switzerland
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oSIST prEN ISO 28927-13:2019
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Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and symbols . 1
4 Symbols . 2
5 Basic standards and vibration test code . 2
6 Description of the family of machines. 2
7 Characterization of vibration . 4
7.1 Direction of measurement . 4
7.2 Location of measurements . 4
7.3 Magnitude of vibration. 6
7.4 Combination of vibration directions . 6
8 Instrumentation requirements . 7
8.1 General . 7
8.2 Mounting of transducers . 7
8.2.1 Specification of transducer . 7
8.2.2 Fastening of transducers . 7
8.2.3 Mechanical Filter . 8
8.3 Frequency weighting filter . 8
8.4 Integration time . 8
8.4.1 General. 8
8.4.2 Single sequential and contact actuation . 8
8.4.3 Continual contact actuation . 8
8.5 Auxiliary equipment . 8
8.6 Calibration of the measurement chain . 8
9 Testing and operating conditions of the machinery . 8
9.1 General . 8
9.2 Attached equipment, workpiece and task . 9
9.2.1 General. 9
9.2.2 Pneumatic machines . . 9
9.3 Attached equipment, workpiece . 9
9.4 Operators .10
9.5 Test procedure .10
9.5.1 Single sequential and contact actuation .10
9.5.2 Continual contact actuation .10
10 Measurement procedure and validity .11
10.1 Reported vibration values .11
10.2 Declaration and verification of the vibration emission value.11
11 Test report .12
Annex A (informative) Model test report for vibration emission of fastener driving tools .13
Annex B (normative) Determination of uncertainty .15
Bibliography .18
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Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
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. 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 www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on 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 the following URL: www .iso .org/iso/foreword .html.
The committee responsible for this document is Technical Committee ISO/TC 118, Compressors and
pneumatic tools, machines and equipment, Subcommittee SC 3, Pneumatic tools and machines.
This first edition of ISO 28927-13 cancels and replaces ISO 8662-11:1999 and ISO 8662-11 AMD 1:2001,
of which it constitutes a technical revision. The most important changes are
— vibration measurement in three axes and at both hand positions,
— new transducer positions,
— improved definition of transducer positions and orientation.
A list of all the parts in the ISO 28927- series can be found on the ISO website.
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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 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 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 EN 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.
In order to provide a method that gives good measurement reproducibility, this part of ISO 28927
adopts a procedure for testing impact and impulse machines using a test device based on break blocks
acting on the outer diameter of a test socket, and a free running test for other machines. The procedures
of ISO 5349 are required whenever exposure at the workplace is to be assessed.
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 will 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. It is therefore not recommended that emission values
below 2,5 m/s2 be used for estimating the vibration magnitude under real working conditions in such
cases, 2,5 m/s2 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)
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.
The vibration test codes given in ISO 28927 supersede those given in ISO 8662, whose parts have been
replaced by the corresponding parts of ISO 28927 (see Foreword).
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oSIST prEN ISO 28927-13:2019
DRAFT INTERNATIONAL STANDARD ISO/DIS 28927-13:2019(E)
Hand-held portable power tools — Test methods for
evaluation of vibration emission —
Part 13:
Fastener driving tools
1 Scope
This document specifies a laboratory method for measuring the vibration at the handle of continuous
operating fastener driving tools. It is a type test procedure for establishing the vibration value on the
handle of a hand-held power tool operating under a specified load.
This document is applicable for fastener driving tools, driven pneumatically or by other means (see
Figure 1). This document is applicable to fasteners comprising nails, staples, pins, etc.
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 5349 (all parts), Mechanical vibration — Measurement and evaluation of human exposure to hand-
transmitted vibration
ISO 5391, Pneumatic tools and machines — Vocabulary
ISO 17066, Hydraulic tools — Vocabulary
ISO 20643, 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/TS 15694, Mechanical vibration and shock — Measurement and evaluation of single shocks transmitted
from hand-held and hand-guided machines to the hand-arm system
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 terms, definitions and symbols, apply.
3.1
fastener driving tool
stapler
power tool for driving nails/staples with one or more strokes
3.1.2
continuous operation
is the operating state according to ISO 11148-13:2017, 3.2.7, 3.2.8, 3.2.9 and 3.2.10
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4 Symbols
Symbol Description Unit
2
a root-mean-square (r.m.s.) single-axis acceleration value of the frequency-weighted m/s
hw
hand-transmitted vibration
2
a vibration total value of frequency-weighted r.m.s. acceleration; root sum of squares m/s
hv
of a values for the three measured axes of vibration
hw
2
arithmetic mean value of a values of runs for one operator for one hand position m/s
hv
a
hv
2
a is the time averaged weighted single event vibration value normalised to one opera- m/s
hv, 3s
tion each three seconds
2
a is the time averaged weighted single for maximum Continuous operating m/s
hv, max
2
a m/s
h
a
hv
arithmetic mean value of values for all operators for one hand position

2
arithmetic mean value of a values for one hand position on several machines m/s
h
a
h
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
N maximum possible drive sequence 1/s
max
2
K Uncertainty m/s
5 Basic standards and vibration test code
This document 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 and Annex B the means for determining the uncertainty, K.
6 Description of the family of machines
This document applies to hand-held machines intended for fastener driving tools.
Figures 1 to 5 show examples of typical fastener driving tools covered by this document.
Figure 1 — Gas fastener driving tool
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Figure 2 — Battery fastener Driving tool
Figure 3 — Electric fastener driving tool
Figure 4 — Pneumatic fastener driving tool
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Figure 5 — Powder — driven (cartridges) fastener driving tool
7 Characterization of vibration
7.1 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 6 to 10.
7.2 Location of measurements
Measurements 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.
Tools of a mass of 2 kg or more may be operated using both hands, and so measurements shall be made
in two positions. For tools without a side handle, the second-hand position is on the front housing, or —
if that is not possible — on the housing, see Figures 6 to 10. For battery tools, the weight includes the
standard battery.
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Figure 6 — Measurement locations — Gas fastener driving tool
Figure 7 — Measurement locations — Battery fastener driving tool
Figure 8 — Measurement locations — Electric fastener driving tool
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Figure 9 — Measurement locations — Pneumatic fastener driving tool
Key
1 prescribed location
2 secondary location
3 Example of an additional location for a gripping zone.
Figure 10 — Measurement locations — Powder-driven (cartridges) fastener driving tool
7.3 Magnitude of vibration
The magnitude of vibration shall be in accordance with ISO 20643:2005, 7.3.
7.4 Combination of vibration directions
The vibration total value in accordance with ISO 20643:2005, 6.4, shall be reported for both hand
positions, as applicable. It is acceptable to report and carry out tests on the hand position having the
highest reading. The vibration total value at that hand position shall be at least 30 % higher than at the
other. This result may be obtained during a preliminary test carried out by a single operator during five
test ruins.
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To obtain the vibration total value, a , for each test run, the results in each direction shall be combined
hv
using Equation (1):
22 2
aa=+ aa+ (1)
hv hwxhwy hwz
The a value for each operator shall be calculated as the arithmetic mean of the a values for the five
hv hv
tests. For each hand position, the results from the three operators should be combined to one value, a ,
h
using the arithmetic mean of the three a values.
hv
However, there are some situations where triaxial measurement may not be possible or necessary. In
such situations ISO 5349-1 requires that an appropriate multiplication factor is applied to a single-axis
measurement result to give an estimated vibration total value.
The multiplication factor used should be between 1,0 for highly dominant single-axis tools and 1,7
where the measured axis represents the vibration in all three axes. (A vibration axis is dominant when
both non-dominant axis vibration values are each less than 30 % of the dominant axis vibration value.)
Where single-axis measurements are to be used, the single axis shall be the dominant axis.
EXAMPLE Initial measurements on a nailer show that the vertical axis vibration is dominant and
that the vibration in the other axes is always less than 30 % ((Value to be checked and changed later.))
of the acceleration in the dominant axis, ahw,dominant. In this case the estimated vibration total value
is given by
22 2
aa=+(,03aa)(+ 03,)
hv hw,dominanthw,dominant hw,dominant
2
=+1 220×=,,31aa086
hw,dominanthw,dominant

A multiplication factor of 1,086 (rounded to 1,1) is therefore appropriate. The estimated vibration total
value will therefore be 1,1 times the dominant axis vibration value.
8 Instrumentation requirements
8.1 General
The instrumentation shall be in accordance with ISO 20643:2005, 8.1.
8.2 Mounting of transducers
8.2.1 Specification of transducer
The specification for the transducer given in 20643:2005, 7.2.1, applies.
The total mass of the transducers and mounting device shall be small enough, compared with that of
the machine, handle, etc., so as not to influence the measurement result.
This is particularly important for low-mass plastic handles (see ISO 5349-2).
8.2.2 Fastening of transducers
The transducer or mounting block used shall be rigidly attached to the surface of the handle.
In case of soft grip handles the resilient material shall be removed to attach the transducer on the rigid
surface.
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Ideally for triaxial measurements, integrated triaxial transducers shall be used. For the two axes
aligned parallel to the vibrating surface, the measurement axes of the two transducers — or the two
transducer elements in a triaxial transducer — shall be a maximum of 10 mm from the gripping surface.
8.2.3 Mechanical Filter
It is normally necessary to use mechanical filters for measurements in accordance with this part of
ISO 28927 to prevent dc shifts. For the application of mechanical filter see ISO 5349-2:2001, Annex C.
8.3 Frequency weighting filter
Frequency-weighting shall be in accordance with ISO 5349-1.
8.4 Integration time
8.4.1 General
The integration time shall be in accordance with ISO 20643:2005, 7.4.
8.4.2 Single sequential and contact actuation
Actuation shall be performed 10 times regularly distributed over an integral time of 30 s.
8.4.3 Continual contact actuation
The machine shall be set to 80 % of its maximum repetition speed of operation. If this is not possible, the
machine shall be set to its maximum repetition speed of operation. The measurement shall be carried
out over a duration of at least 8 s.
8.5 Auxiliary equipment
For pneumatic machines, the air pressure shall be measured using a pressure gauge with an accuracy
equal to or better than 0,1 bar.
For electrical machines, the voltage shall be measured using a volt meter with accuracy equal to or
better than 3 % of the actual value.
8.6 Calibration of the measurement chain
The specifications for calibration given in ISO 20643:2005+A1: 2010, 7.6 apply.
9 Testing and operating conditions of the machinery
9.1 General
Measurements shall be carried out on a new, properly serviced and lubricated fastener driving tool.
The fastener driving tool shall be operated perpendicularly to the workpiece.
A suitable feed force shall be applied to ensure stable and smooth operation of the power tool and to
give rated performance in accordance with the manufacturer's specification.
During the test, the power tool shall be arranged so that the operator can have an upright, or almost
upright, posture and work with his forearm and upper arm at an angle between 100° and 160°. The
operator shall be able to hold the power tool comfortably during the test. See Figure 11.
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Figure 11 — Fastener driving tool — Working position of operator
9.2 Attached equipment, workpiece and task
9.2.1 General
The pressure of compressed-air-operated fastener driving tools shall be adjusted so that the fasteners
used are driven into the workpiece. Special cases shall be reported. The pressure used shall assure
proper function of the fastener driving tool.
Non-compressed-air-operated fastener driving tools which are equipped with an impact force
adjustment shall be regulated using this device.
The power setting shall be adjusted to ensure that the fastener (staplers, nailers, etc.) are driven flush
to the surface.
9.2.2 Pneumatic machines
The pressure of pneumatically powered fastener driving tools or other data related to the power supply
shall be measured
...