SIST EN ISO 28927-8:2010

Hand-held portable power tools - Test methods for evaluation of vibration emission - Part 8: Saws, polishing and filing machines with reciprocating action and saws with oscillating or rotating action (ISO 28927-8:2009)

This part of ISO 28927 specifies a laboratory method for measuring hand-transmitted vibration emission at the handles of hand-held, power-driven saws, polishing and filing machines with reciprocating action and small saws with oscillating or rotating action. It is a type-test procedure for establishing the magnitude of vibration in the gripping areas of a machine run under specified test conditions. It is intended that the results be used to compare different models of the same type of machine. This part of ISO 28927 is applicable to reciprocating files intended for surface finishing equipped with a file or polishing tool, saws intended for parting sheets, plaster for medical use or wood, or equipped with a saw blade for use on all kinds of materials, and small circular saws primarily intended for cutting metal or composite materials (see Clause 5), whether driven pneumatically or by other means. It is not applicable to files that are normally used with one hand on the file blade, nor to large circular saws intended for cutting wood.

Handgehaltene motorbetriebene Maschinen - Messverfahren zur Ermittlung der Schwingungsemission - Teil 8: Sägen, Feilen und Maschinen für Poliernadeln mit hin- und hergehender Bewegung sowie Sägen mit Schwing- oder Drehbewegung (ISO 28927-8:2009)

Dieser Teil von ISO 28927 legt ein Laborverfahren zur Messung der Hand-Arm-Schwingungen fest, die an
den Handgriffen von handgehaltenen Sägen, Feilen und Maschinen für Poliernadeln mit hin- und hergehender
Bewegung sowie kleinen Sägen mit Schwing- oder Drehbewegung hervorgerufen werden. Es handelt sich um
ein Messverfahren zur Ermittlung der Schwingungskennwerte (Schwingungsemissionswerte) an den Greifstellen
der Maschine.
Dieser Teil von ISO 28927 gilt für Feilen mit hin- und hergehender Bewegung zur Schlussbearbeitung von
Oberflächen mit einem Feilwerkzeug oder einer Poliernadel, für Sägen zum Schneiden von Blech, Pflaster in
der Medizin oder Holz mit einem Sägeblatt für alle Arten von Werkstoff sowie für kleine Kreissägen, die
hauptsächlich zum Schneiden von Metall und Verbundwerkstoffen vorgesehen sind.
Die Maschinen, die dieser Teil von ISO 28927 behandelt, können pneumatisch oder auf andere Weise
angetrieben sein. In den Bildern 1 bis 11 sind typische Maschinen dargestellt.
Dieser Teil von ISO 28927 gilt für die in Abschnitt 5 genannten Maschinen. Er gilt nicht für Feilen, bei denen
üblicherweise eine Hand das Feilwerkzeug berührt. Außerdem gilt er nicht für große Kreissägen zum
Schneiden von Holz.
Der Zweck besteht darin, dass die Kennwerte zum Vergleich verschiedener Modelle derselben Maschinenart
verwendet werden können.

Machines à moteur portatives - Méthodes d'essai pour l'évaluation de l'émission de vibrations - Partie 8: Scies, polisseuses et limes alternatives, et petites scies oscillantes ou circulaires (ISO 28927-8:2009)

L'ISO 28927-8:2009 spécifie une méthode de mesure en laboratoire des émissions de vibrations transmises aux mains s'exerçant au niveau des poignées des scies, des polisseuses et des limes alternatives, et des petites scies oscillantes ou circulaires portatives. Il s'agit d'une méthode d'essai de type définissant l'amplitude des vibrations aux zones de préhension des machines fonctionnant dans les conditions d'essai données. Il est prévu d'utiliser les résultats pour comparer différents modèles du même type de machine.
L'ISO 28927-8:2009 s'applique aux limes alternatives destinées au fini de surface, équipées d'une lime ou d'une polisseuse, aux scies destinées à sectionner des tôles, des emplâtres à usage médical ou des morceaux de bois, équipées d'une lame adaptée à tous les types de matériaux et aux petites scies circulaires destinées principalement à découper des métaux ou des matériaux composites, pneumatiques ou entraînées par un autre dispositif. Elle ne s'applique pas aux limes normalement utilisées avec une main placée sur la lame de la lime, ni aux grandes scies circulaires destinées à découper le bois.

Ročna prenosna električna orodja - Preskusne metode za vrednotenje oddajanja vibracij - 8. del: Žage, polirni stroji in pile s povratnim gibanjem ter žage z nihajnim ali krožnim gibanjem (ISO 28927-8:2009)

Ta del ISO 28927 določa laboratorijsko metodo merjenja emisij ročnega oddajanja vibracij na ročajih ročnih električnih žagah, polirnih strojih in pilah s povratnim gibanjem ter žagah z nihajnim ali krožnim gibanjem. To je postopek tipskega preskusa za vzpostavljanje razsežnosti vibracij v območju držanja stroja, ko deluje pod določenimi preskusnimi pogoji. Namenjen je temu, da se rezultati uporabijo za primerjavo različnih modelov strojev istega tipa. Ta del ISO 28927 velja za batne pile, namenjene za opremo za apreturo površine, opremljene s pilo ali polirnim orodjem, žage, namenjene za ločevanje slojev, mavca za medicinsko uporabo ali lesa, ali opremljene z žaginim listom za uporabo na vseh vrstah materialov, in majhne krožne žage, namenjene predvsem za rezanje kovin ali sestavljenih materialov (glej Klavzulo 5), pnevmatično ali kako drugače gnane. Ne velja za pile, ki so običajno uporabljene z eno roko na rezilu pile, niti za velike krožne žage, namenjene rezanju lesa.

General Information

• Status: Published
• Public Enquiry End Date: 31-Aug-2008
• Publication Date: 18-Jan-2010
• ICS: 13.160 - Vibration and shock with respect to human beings
• ICS: 25.140.01 - Hand-held tools in general
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 22-Dec-2009
• Due Date: 26-Feb-2010
• Completion Date: 19-Jan-2010
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Directive: 98/37/EC - Machinery
• Mandate: M/079 - Mandate to CEN and CENELEC for standardization in the field of machines
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: EN ISO 28927-8:2009 - Hand-held portable power tools - Test methods for evaluation of vibration emission - Part 8: Saws, polishing and filing machines with reciprocating action and saws with oscillating or rotating action (ISO 28927-8:2009)

Relations

• Replaces: SIST EN ISO 8662-12:2000 - 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 (ISO 8662-12:1997)
• Effective Date: 01-Feb-2010
• Amended By: SIST EN ISO 28927-8:2010/A1:2016 - Hand-held portable power tools - Test methods for evaluation of vibration emission - Part 8: Saws, polishing and filing machines with reciprocating action and small saws with oscillating or rotating action - Amendment 1: Polishing machines, modified feed forces (ISO 28927-8:2009/Amd 1:2015)
• Effective Date: 01-Mar-2016
• Amended By: SIST EN ISO 28927-8:2010/A2:2019 - Hand-held portable power tools - Test methods for evaluation of vibration emission - Part 8: Saws, polishing and filing machines with reciprocating action and small saws with oscillating or rotating action - Amendment 2: Oscillating knives (vibrating screen removal tools) (ISO 28927-8:2009/Amd 2:2019)
• Effective Date: 26-Apr-2017

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 28927-8:2010
01-februar-2010
1DGRPHãþD
SIST EN ISO 8662-12:2000
5RþQDSUHQRVQDHOHNWULþQDRURGMD3UHVNXVQHPHWRGH]DYUHGQRWHQMHRGGDMDQMD
YLEUDFLMGHOäDJHSROLUQLVWURMLLQSLOHVSRYUDWQLPJLEDQMHPWHUåDJH]QLKDMQLP
DOLNURåQLPJLEDQMHP,62
Hand-held portable power tools - Test methods for evaluation of vibration emission - Part
8: Saws, polishing and filing machines with reciprocating action and saws with oscillating
or rotating action (ISO 28927-8:2009)
Handgehaltene motorbetriebene Maschinen - Messverfahren zur Ermittlung der
Schwingungsemission - Teil 8: Sägen, Feilen und Maschinen für Poliernadeln mit hin-
und hergehender Bewegung sowie Sägen mit Schwing- oder Drehbewegung (ISO 28927
-8:2009)
Machines à moteur portatives - Méthodes d'essai pour l'évaluation de l'émission de
vibrations - Partie 8: Scies, polisseuses et limes alternatives, et petites scies oscillantes
ou circulaires (ISO 28927-8:2009)
Ta slovenski standard je istoveten z: EN ISO 28927-8:2009
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
SIST EN ISO 28927-8:2010 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 28927-8:2010

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SIST EN ISO 28927-8:2010


EUROPEAN STANDARD
EN ISO 28927-8

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2009
ICS 13.160; 25.140.10 Supersedes EN ISO 8662-12:1997
English Version
Hand-held portable power tools - Test methods for evaluation of
vibration emission - Part 8: Saws, polishing and filing machines
with reciprocating action and saws with oscillating or rotating
action (ISO 28927-8:2009)
Machines à moteur portatives - Méthodes d'essai pour Handgehaltene motorbetriebene Maschinen -
l'évaluation de l'émission de vibrations - Partie 8: Scies, Messverfahren zur Ermittlung der Schwingungsemission -
polisseuses et limes alternatives, et petites scies Teil 8: Sägen, Feilen und Maschinen für Poliernadeln mit
oscillantes ou circulaires (ISO 28927-8:2009) hin- und hergehender Bewegung sowie kleine Sägen mit
Schwing- oder Drehbewegung (ISO 28927-8:2009)
This European Standard was approved by CEN on 14 December 2009.

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 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 Management Centre has the same status as the
official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 28927-8:2009: E
worldwide for CEN national Members.

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SIST EN ISO 28927-8:2010
EN ISO 28927-8:2009 (E)
Contents Page
Foreword .3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 98/37/EC, amended by Directive 98/79/EC .4
Annex ZB (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC .5

2

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SIST EN ISO 28927-8:2010
EN ISO 28927-8:2009 (E)
Foreword
This document (EN ISO 28927-8:2009) 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 June 2010, and conflicting national standards shall be withdrawn at
the latest by June 2010.
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 supersedes EN ISO 8662-12:1997.
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 Directives.
For relationship with EU Directives, see informative Annex ZA and ZB, which are integral parts 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, 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 28927-8:2009 has been approved by CEN as a EN ISO 28927-8:2009 without any
modification.
3

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SIST EN ISO 28927-8:2010
EN ISO 28927-8:2009 (E)
Annex ZA
(informative)

Relationship between this European Standard and the Essential
Requirements of EU Directive 98/37/EC, amended by Directive 98/79/EC
This European 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 98/37/EC, Machinery, amended by Directive 98/79/EC.
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 normative 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, except ER 1.7.4 d) and 2.2, and associated EFTA
regulations.
WARNING — Other requirements and other EU Directives may be applicable to the products falling
within the scope of this standard.

4

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SIST EN ISO 28927-8:2010
EN ISO 28927-8:2009 (E)
Annex ZB
(informative)

Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC
This European Standard has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association to provide one 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 normative clauses of
this standard confers, within the limits of the scope of this standard, a presumption of conformity with the
corresponding Essential Requirement of that Directive, except 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.



5

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SIST EN ISO 28927-8:2010

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SIST EN ISO 28927-8:2010

INTERNATIONAL ISO
STANDARD 28927-8
First edition
2009-12-15


Hand-held portable power tools — Test
methods for evaluation of vibration
emission —
Part 8:
Saws, polishing and filing machines with
reciprocating action and small saws with
oscillating or rotating action
Machines à moteur portatives — Méthodes d'essai pour l'évaluation de
l'émission de vibrations —
Partie 8: Scies, polisseuses et limes alternatives, et petites scies
oscillantes ou circulaires





Reference number
ISO 28927-8:2009(E)
©
ISO 2009

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SIST EN ISO 28927-8:2010
ISO 28927-8:2009(E)
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©  ISO 2009
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
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ii © ISO 2009 – All rights reserved

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SIST EN ISO 28927-8:2010
ISO 28927-8:2009(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.2
4 Basic standards and vibration test codes .3
5 Description of the family of machines .3
6 Characterization of vibration.6
6.1 Direction of measurement .6
6.2 Location of measurements.6
6.3 Magnitude of vibration.11
6.4 Combination of vibration directions.11
7 Instrumentation requirements.11
7.1 General .11
7.2 Mounting of transducers .11
7.2.1 Specification of transducer .11
7.2.2 Fastening of transducers.12
7.3 Frequency weighting filter.12
7.4 Integration time.12
7.5 Auxiliary equipment .12
7.6 Calibration.12
8 Testing and operating conditions of the machinery.13
8.1 General .13
8.2 Operating conditions .13
8.2.1 Pneumatic machines.13
8.2.2 Hydraulic machines.13
8.2.3 Electrical machines .13
8.3 Other quantities to be specified.13
8.4 Attached equipment, work piece and task.13
8.4.1 General .13
8.4.2 Test set-up, conditions and procedures.14
8.5 Operators.17
9 Measurement procedure and validity.17
9.1 Reported vibration values .17
9.2 Declaration and verification of the vibration emission value .18
10 Measurement report .18
Annex A (informative) Model test report for vibration emission of saws and files.20
Annex B (normative) Determination of uncertainty.22
Bibliography.24

© ISO 2009 – All rights reserved iii

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SIST EN ISO 28927-8:2010
ISO 28927-8:2009(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 28927-8 was prepared by Technical Committee ISO/TC 118, Compressors and pneumatic tools,
machines and equipment, Subcommittee SC 3, Pneumatic tools and machines.
This first edition of ISO 28927-8 cancels and replaces ISO 8662-12:1997, 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, and
⎯ improved definition of transducer positions and orientation.
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
4)
⎯ Part 4: Straight grinders

1) Together with Part 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 nut runners with impact, impulse and ratcheting 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.
4) Together with Part 1, replaces ISO 8662-4, Hand-held portable power tools — Measurement of vibrations at the
handle — Part 4: Grinders.
iv © ISO 2009 – All rights reserved

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SIST EN ISO 28927-8:2010
ISO 28927-8:2009(E)
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
rotating action
8)
⎯ Part 9: Scaling hammers and needle scalers
9)
⎯ Part 10: Percussive drills, hammers and breakers
10)
⎯ Part 11: Stone hammers


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) Together with Part 11, replaces ISO 8662-14, Hand-held portable power tools — Measurement of vibrations at the
handle — Part 14: Stone-working tools and needle scalers.
9) Replaces ISO 8662-2, Hand-held portable power tools — Measurement of vibrations at the handle — Part 2: Chipping
hammers and riveting hammers, ISO 8662-3, Hand-held portable power tools — Measurement of vibrations at the
handle — Part 3: Rock drills and rotary hammers, and ISO 8662-5, Hand-held portable power tools — Measurement of
vibrations at the handle — Part 5: Pavement breakers and hammers for construction work. Chipping and riveting hammers,
rock drills and rotary hammers all covered.
10) Together with Part 9, replaces ISO 8662-14, Hand-held portable power tools — Measurement of vibrations at the
handle — Part 14: Stone-working tools and needle scalers.
© ISO 2009 – All rights reserved v

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SIST EN ISO 28927-8:2010
ISO 28927-8:2009(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 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.
It has been found that vibrations generated by files and saws vary considerably in typical use. For
reciprocating saws and files, the motion of reciprocation is the prime source of vibration. The variation is
largely due to variations in the handling of the machine and the characteristics of the material worked on,
while differences in the support of the material and counterbalancing of the machine also cause differences in
vibration.
This part of ISO 28927 uses a working process where the machine is used to cut sheet metal or wood. In
order to achieve good reproducibility, it is important that the material have good support and that the files or
saw blades used be in good condition. 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.
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) 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 working situations, depending on the characteristics of
the material being worked on, the condition of the inserted tool and the handling of the machine.
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).
NOTE ISO 8662-11, Hand-held portable power tools — Measurement of vibrations at the handle — Part 11: Fastener
driving tools, and ISO 8662-13, Hand-held portable power tools — Measurement of vibrations at the handle — Part 13:
Die grinders, could be replaced by future parts of ISO 28927.
vi © ISO 2009 – All rights reserved

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SIST EN ISO 28927-8:2010
INTERNATIONAL STANDARD ISO 28927-8:2009(E)

Hand-held portable power tools — Test methods for evaluation
of vibration emission —
Part 8:
Saws, polishing and filing machines with reciprocating action
and small saws with oscillating or rotating action
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 saws, polishing and filing machines with reciprocating action and small
saws with oscillating or rotating action. It is a type-test procedure for establishing the magnitude of vibration in
the gripping areas of a machine run under specified test conditions. It is intended that the results be used to
compare different models of the same type of machine.
This part of ISO 28927 is applicable to reciprocating files intended for surface finishing equipped with a file or
polishing tool, saws intended for parting sheets, plaster for medical use or wood, or equipped with a saw blade
for use on all kinds of materials, and small circular saws primarily intended for cutting metal or composite
materials (see Clause 5), whether driven pneumatically or by other means. It is not applicable to files that are
normally used with one hand on the file blade, nor to large circular saws intended for cutting wood.
NOTE To avoid confusion with the terms “power tool” and “inserted tool”, machine is used for the former throughout
this document.
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 2787:1984, Rotary and percussive pneumatic tools — Performance tests
ISO 5349:2001 (all parts), Mechanical vibration — Measurement and evaluation of human exposure to hand-
transmitted vibration
ISO 5391:2003, Pneumatic tools and machines — Vocabulary
ISO 17066:2007, Hydraulic tools — Vocabulary
ISO 20643:2005, Mechanical vibration — Hand-held and hand-guided machinery — Principles for evaluation
of vibration emission
EN 12096:1997, Mechanical vibration — Declaration and verification of vibration emission values
ISO 16893-1:2008, Wood-based panels — Particleboard — Part 1: Classifications
© ISO 2009 – All rights reserved 1

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SIST EN ISO 28927-8:2010
ISO 28927-8:2009(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 terms, definitions and symbols, apply.
3.1 Terms and definitions
3.1.1
circular saw
machine equipped with a rotary saw blade
NOTE Adapted from ISO 5391:2003, definition 2.1.8.1.
3.1.2
oscillation saw
machine equipped with a saw blade that moves with an angular reciprocating movement
3.1.3
reciprocating saw
sabre saw
hack saw
machine with a rotary or reciprocating motor, adapted to drive a saw blade in a reciprocating motion
[ISO 5391:2003, definition 2.1.8.3]
3.1.4
jig saw
saw with a reciprocating and pendulum motion
[ISO 5391:2003, definition 2.1.8.5]
3.1.5
reciprocating filing and polishing machine
machine with a rotary and reciprocation motor that drives a file or polishing inserted tool in an angular or
straight reciprocating motion
3.2 Symbols
Symbol Description Unit
2
a root-mean-square (r.m.s.) single-axis acceleration value of the frequency- m/s
hw
weighted hand-transmitted vibration
2
a vibration total value of frequency-weighted r.m.s. acceleration; root sum of m/s
hv
squares of a values for the three measured axes of vibration
hw
2
a arithmetic mean value of a values of runs for single operator using one m/s
hv hv
hand position
2
a arithmetic mean value of a values for all operators for one hand position m/s
h hv
2
a arithmetic mean value of a values for one hand position on several m/s
h 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
n1−
2
σ standard deviation o
...