EN ISO 22867:2021
(Main)Forestry and gardening machinery - Vibration test code for portable hand-held machines with internal combustion engine - Vibration at the handles (ISO 22867:2021)
Forestry and gardening machinery - Vibration test code for portable hand-held machines with internal combustion engine - Vibration at the handles (ISO 22867:2021)
This document specifies a vibration test code for determining, efficiently and under standardized conditions, the magnitude of vibration at the handles of portable hand-held, internal-combustion-engine-powered forest and garden machinery, including chain-saws, brush-cutters, grass-trimmers, edgers, pole-mounted powered pruners, hedge-trimmers and garden-blowers.
Although the magnitudes measured are obtained in an artificial operation, they nevertheless give an indication of the values to be found in a real work situation.
Vibration test codes, as described in this document, enable the manufacturer to verify the effort regarding low vibration design.
Forst- und Gartenmaschinen - Schwingungsmessnorm für handgehaltene Maschinen mit Verbrennungsmotor - Schwingungen an den Handgriffen (ISO 22867:2021)
Dieses Dokument legt ein Schwingungsmessverfahren zur effizienten Ermittlung der Schwingungen an den Handgriffen von handgehaltenen Forst- und Gartenmaschinen mit Verbrennungsmotor wie den folgenden unter einheitlichen Bedingungen fest: Kettensägen, Freischneider (Gestrüppschneider), Grastrimmer (Rasentrimmer), Kantenschneider, Hochentaster, Heckenscheren und Laubbläser.
Obwohl die Messwerte in einem Ersatz-Arbeitsverfahren ermittelt werden, sind sie ein Maß für die Werte, die unter praktischen Arbeitsbedingungen zu finden sind.
Die in diesem Dokument beschriebenen Schwingungsmessverfahren ermöglichen es dem Hersteller, schwin¬gungs¬reduzierte Konstruktionen zu verifizieren.
ACHTUNG — Einige der in diesem Dokument festgelegten Messabläufe enthalten Vorgehensweisen, die zu einer Gefährdung führen könnten. Alle Personen, die eine Messung nach diesem Dokument durch-führen, müssen in der auszuführenden Arbeit ausreichend geübt sein.
Machines forestières et machines de jardin - Code d'essai des vibrations pour machines portatives tenues à la main à moteur à combustion interne - Vibrations au niveau des poignées (ISO 22867:2021)
Le présent document spécifie un code d’essai vibratoire pour déterminer, avec efficacité et dans des conditions normalisées, l’amplitude des vibrations aux poignées des machines forestières et des machines de jardin portatives tenues à la main à moteur à combustion interne, telles que les scies à chaîne, les débroussailleuses, les coupe-herbe, coupe bordures, les perches élagueuses à moteur, les taille-haies et les souffleurs de jardin.
Bien que les grandeurs mesurées soient obtenues en fonctionnement artificiel, elles donnent cependant une indication des valeurs que l’on rencontre dans une situation de travail réelle.
Les codes d'essai de vibration tels que décrits dans le présent document permettent au fabricant de vérifier l'effort concernant la conception avec faible vibration.
Gozdarski in vrtnarski stroji - Standard za meritev tresenja ročno vodenih strojev, gnanih z motorjem z notranjim zgorevanjem - Tresenje na ročajih (ISO 22867:2021)
Ta dokument določa učinkovit in standardiziran preskus tresenja za ugotavljanje magnitude tresljajev na ročajih prenosnih, ročno vodenih gozdarskih in vrtnarskih strojih, gnanih z motorjem z notranjim zgorevanjem, vključno z verižnimi žagami, kosilnicami s prosto rezjo, opremljenimi z rezilno ploščo ali kosilno nitko, kosilnicami za robove trat, motornimi žagami za obvejevanje z drogom, škarjami za živo mejo in vrtnimi pihalniki.
Čeprav so izmerjene magnitude pridobljene pri simuliranem delovanju, podajajo vrednosti predvidene pri dejanski uporabi.
Kode za preskušanje tresljajev, kot so opisane v tem dokumentu, proizvajalcu omogočajo, da preveri zasnovo izdelkov z nizko stopnjo tresenja.
General Information
Relations
Overview
EN ISO 22867:2021 - "Forestry and gardening machinery - Vibration test code for portable hand-held machines with internal combustion engine - Vibration at the handles" - is a CEN-endorsed ISO standard that defines a harmonized vibration test code for portable, hand‑held forest and garden machines. It covers common equipment such as chain-saws, brush‑cutters, grass‑trimmers, edgers, pole‑mounted pruners, hedge‑trimmers and garden blowers. The standard provides a repeatable method to determine the magnitude of vibration at the handles under standardized (artificial) operating conditions, supplying indicative values relevant to real work situations and supporting low‑vibration design verification.
Key topics and requirements
- Scope and applicability: Portable hand‑held internal‑combustion‑engine machinery used in forestry and gardening.
- Vibration quantities: Specifies which vibration metrics are to be measured and reported (see Clause 4).
- Instrumentation: Requirements for accelerometers, fastening, calibration and speed‑indication systems (Clauses 5 and 6).
- Measurement location and direction: Defined positions on handles and measurement axes to reflect real handling (Clause 6; Annexes provide machine‑specific positions).
- Test and operating conditions: Standardized operating modes and engine speed conditions to ensure comparable results across tests (Clause 7).
- Measurement, calculation and data validity: Procedures for capturing, processing and validating measurement data (Clause 8).
- Reporting and verification: Mandatory information to be reported, methods for declaration and verification of vibration values (Clauses 9–10).
- Machine‑specific annexes: Normative annexes (A–E) for chain‑saws, brush‑cutters/edgers, pole‑mounted pruners, hedge trimmers and garden blowers; Annex F summarizes interlaboratory test results.
Practical applications and users
- Machine manufacturers use EN ISO 22867:2021 to test and verify low‑vibration design choices during product development and for technical documentation.
- Regulators, certification bodies and market surveillance authorities use the standard as a harmonized test method supporting compliance assessment and safety evaluations.
- Health & safety professionals and employers rely on standardized vibration data to assess occupational exposure risks and to inform selection, maintenance and work‑practice controls.
- Test laboratories and research organizations perform standardized measurements for comparative studies, type testing and interlaboratory validation.
Related standards and regulatory links
- Based on and related to ISO 20643 test principles; classified as a type‑C standard under ISO 12100.
- Supports conformity with EU Machinery Directive 2006/42/EC where cited; CEN has adopted ISO 22867:2021 as EN ISO 22867:2021.
- Contains normative and informative annexes for machine‑specific guidance and interlaboratory data.
Keywords: EN ISO 22867:2021, vibration test code, portable hand‑held machines, internal combustion engine, vibration at the handles, chain‑saw vibration testing, low vibration design, machinery safety, EU Machinery Directive.
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2022
Nadomešča:
SIST EN ISO 22867:2012
Gozdarski in vrtnarski stroji - Standard za meritev tresenja ročno vodenih strojev,
gnanih z motorjem z notranjim zgorevanjem - Tresenje na ročajih (ISO 22867:2021)
Forestry and gardening machinery - Vibration test code for portable hand-held machines
with internal combustion engine - Vibration at the handles (ISO 22867:2021)
Forst- und Gartenmaschinen - Schwingungsmessnorm für handgehaltene Maschinen mit
Verbrennungsmotor - Schwingungen an den Handgriffen (ISO 22867:2021)
Machines forestières et machines de jardin - Code d'essai des vibrations pour machines
portatives tenues à la main à moteur à combustion interne - Vibrations au niveau des
poignées (ISO 22867:2021)
Ta slovenski standard je istoveten z: EN ISO 22867:2021
ICS:
13.160 Vpliv vibracij in udarcev na Vibration and shock with
ljudi respect to human beings
65.060.80 Gozdarska oprema Forestry equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 22867
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2021
EUROPÄISCHE NORM
ICS 13.160; 65.060.80; C Supersedes EN ISO 22867:2011
English Version
Forestry and gardening machinery - Vibration test code for
portable hand-held machines with internal combustion
engine - Vibration at the handles (ISO 22867:2021)
Machines forestières et machines de jardin - Code Forst- und Gartenmaschinen - Schwingungsmessnorm
d'essai des vibrations pour machines portatives tenues für handgehaltene Maschinen mit Verbrennungsmotor
à la main à moteur à combustion interne - Vibrations - Schwingungen an den Handgriffen (ISO 22867:2021)
au niveau des poignées (ISO 22867:2021)
This European Standard was approved by CEN on 27 September 2021.
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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22867:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the
requirements of EU Directive 2006/42/EC aimed to be covered . 4
European foreword
This document (EN ISO 22867:2021) has been prepared by Technical Committee ISO/TC 23 "Tractors
and machinery for agriculture and forestry" in collaboration with Technical Committee CEN/TC 144
“Tractors and machinery for agriculture and forestry” the secretariat of which is held by AFNOR.
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 2022, and conflicting national standards shall be
withdrawn at the latest by June 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 22867:2011.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation(s).
For the relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral
part of this document.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 22867:2021 has been approved by CEN as EN ISO 22867:2021 without any modification.
Annex ZA
(informative)
Relationship between this European Standard and the requirements of EU
Directive 2006/42/EC aimed to be covered
This European Standard has been prepared under Commission’s standardization request "M/396
mandate to CEN and CENELEC for standardisation in the field of machinery" to provide one voluntary
means of conforming to essential requirements of the Directive 2006/42/EC of the European
Parliament and of the Council of 17 May 2006 on machinery.
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding Essential Requirements
of that Directive, and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Annex I of Directive
2006/42/EC amended by Directive 2009/127/EC
Relevant Essential Clause(s)/sub-clause(s) Remarks/Notes
Requirements of Directive of this EN
2006/42/EC
1.5.9 Vibrations 4, 6, 7, 8, 9 and Annexes A to E
2.2.1.1 Instructions 10 and Annexes A to E
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
INTERNATIONAL ISO
STANDARD 22867
Third edition
2021-11
Forestry and gardening machinery —
Vibration test code for portable
hand-held machines with internal
combustion engine — Vibration at the
handles
Machines forestières et machines de jardin — Code d'essai des
vibrations pour machines portatives tenues à la main à moteur à
combustion interne — Vibrations au niveau des poignées
Reference number
ISO 22867:2021(E)
ISO 22867:2021(E)
© ISO 2021
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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 22867:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Vibration quantities to be measured and determined. 2
5 Instrumentation . 2
5.1 General . 2
5.2 Accelerometer . 2
5.3 Fastening of accelerometer . 2
5.4 Calibration . 2
5.5 Speed indicator. 3
6 Measurement direction and location . 3
7 Test and operating conditions of machine . 3
8 Measurement and calculation .4
8.1 General . 4
8.2 Validity of measured data . . 5
9 Information to be reported . 5
10 Declaration and verification of vibration values . 6
Annex A (normative) Chain-saws . 8
Annex B (normative) Brush-cutters, grass-trimmers and hand-held edgers .12
Annex C (normative) Pole-mounted powered pruners .16
Annex D (normative) Hedge trimmers .19
Annex E (normative) Garden blowers/vacuums .24
Annex F (informative) Summary of results from interlaboratory tests (2007-2008) on a
chain-saw, brush saw and grass-trimmer .28
Bibliography .29
iii
ISO 22867:2021(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.
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 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 23, Tractors and machinery for agriculture
and forestry, Subcommittee SC 17, Manually portable forest machinery, in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 144, Tractors and machinery for
agriculture and forestry, in accordance with the Agreement on technical cooperation between ISO and
CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 22867:2011), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the scope has been expanded to include hand-held edgers;
— Clause 9 (Information to be reported) has been amended to include “method used for in situ check
of the instrumentation system”;
— the accelerometer position for pole-mounted powered pruners and long-reach hedge trimmers has
been newly defined to better reflect handling of the machine in use;
— the engine speed tolerance for the operation mode “full load” for chain-saws has been broadened
-1 -1
from 3,5 s to 4,5 s , to account for feasibility when cutting wood;
— hand-held edgers have been included in Annex B;
— the definition of the position of the accelerometer on the front handle of pole mounted pruners in
Annex C has been improved and Figure C.1 has been modified accordingly;
— the definition of the position of the accelerometer on the front handle of long reach hedge trimmers
in Annex D has been improved and Figure D.3 has been modified accordingly.
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
ISO 22867:2021(E)
Introduction
This document is a type-C standard as stated in ISO 12100:2010.
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 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 code specified in this document is based on ISO 20643:2008, which gives general
specifications for the measurement of the vibration emission of hand-held machinery. It differs from
ISO 20643:2008 in the number of operators required to be involved in the test, with ISO 20643:2008
requiring at least three operators and this document only one. Another difference is that this document
primarily positions the transducers next to the hand in the area between the thumb and the index
finger, where they present the least disturbance to the operator gripping the machine.
The determination of vibration characteristics is primarily used for
— manufacturer's declarations,
— comparing data between machines in the machine family concerned,
— development work at the design stage, and
— the estimation of the vibration risk considering the specific conditions (parameters).
The use of this vibration test code ensures reproducibility of the determination of the vibration
characteristics. Measurements made during particular operating modes are of interest for assessment
of the vibration exposure, for example, over a typical working day.
The work cycles chosen for this test code are based on the following considerations of application:
a) chain-saws with an engine displacement of < 80 cm are used for various operations, including
felling, bucking and delimbing;
b) chain-saws with an engine displacement of ≥ 80 cm are normally used for felling and bucking.
Delimbing causes the saw to run at racing speed; therefore, racing is included only for saws with an
engine displacement < 80 cm .
v
ISO 22867:2021(E)
For brush-cutters, grass-trimmers, hedge-trimmers and pole-mounted powered pruners, the cutting
mode (full load) is estimated to be valid only for short periods, and racing and idling are the two
dominant modes. Moreover, the cutting mode has also been found to be diverse and not able to be
performed under repeatable conditions.
For grass-trimmers, the full-load and racing modes are integrated into a single mode, owing to the
loading effect of the flexible line.
For brush-cutters, hedge-trimmers, edgers and pole-mounted powered pruners, it is not possible to
simulate the full-load mode in a feasible way, since there are no constant load conditions comparable
to those of chain-saws. Since the operating mode “racing” is the worst case, it is taken as being
representative.
For garden-blowers, full load and idling are the two dominant modes.
In either of these cases, transport and other tasks between operations cause the machine to run at
idling. Experience has led to the conclusion that equal duration for the different working modes is a
good estimation of daily exposure. The values obtained are values intended to be representative of
the average of typical vibration magnitudes in real-world use of the machines. However, the actual
magnitudes varies considerably from time to time and depends on many factors, including operator,
task and cutting attachment. The state of maintenance of the machine itself might also be of importance.
vi
INTERNATIONAL STANDARD ISO 22867:2021(E)
Forestry and gardening machinery — Vibration test
code for portable hand-held machines with internal
combustion engine — Vibration at the handles
CAUTION — Some of the test procedures specified in this document involve processes which
could lead to a hazardous situation. Any person performing tests in accordance with this
document shall be appropriately trained in the type of work to be carried out.
1 Scope
This document specifies a vibration test code for determining, efficiently and under standardized
conditions, the magnitude of vibration at the handles of portable hand-held, internal-combustion-
engine-powered forest and garden machinery, including chain-saws, brush-cutters, grass-trimmers,
edgers, pole-mounted powered pruners, hedge-trimmers and garden-blowers.
Although the magnitudes measured are obtained in an artificial operation, they nevertheless give an
indication of the values to be found in a real work situation.
Vibration test codes, as described in this document, enable the manufacturer to verify the effort
regarding low vibration design.
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 5349-2:2001, Mechanical vibration — Measurement and evaluation of human exposure to hand-
transmitted vibration — Part 2: Practical guidance for measurement at the workplace
ISO 6531:2017, Machinery for forestry — Portable chain-saws — Vocabulary
ISO 7112:2018, Machinery for forestry — Portable brush-cutters and grass-trimmers — Vocabulary
ISO 7293:1997, Forestry machinery — Portable chain saws — Engine performance and fuel consumption
ISO 8041-1:2017, Human response to vibration — Measuring instrumentation — Part 1: General purpose
vibration meters
ISO 8893:1997, Forestry machinery — Portable brush-cutters and grass-trimmers — Engine performance
and fuel consumption
ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 16063-1:1998, Methods for the calibration of vibration and shock transducers — Part 1: Basic concepts
ISO 20643:2008, Mechanical vibration — Hand-held and hand-guided machinery — Principles for
evaluation of vibration emission
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 6531:2017, ISO 7112:2018,
ISO 12100:2010 and ISO 20643:2008 apply.
ISO 22867:2021(E)
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
4 Vibration quantities to be measured and determined
The quantities to be measured are the frequency-weighted accelerations in the three perpendicular
directions, a , a and a .
hwx hwy hwz
The quantities to be determined are the vibration total values, a , and the equivalent vibration total
hv
values, a , for each handle. See the calculations in Annexes A to E.
hv,eq
NOTE Mathematically, a is the root sum of the squares of the three root-mean-square (r.m.s.) single-axis
hv
acceleration values of the frequency-weighted hand transmitted vibration values a , a and a .
hwx hwy hwz
5 Instrumentation
5.1 General
The vibration measurement system shall be in accordance with ISO 8041-1:2017.
5.2 Accelerometer
The total mass of the vibration accelerometer giving the acceleration in the three directions at each
measuring position shall be as low as possible, and shall not in any case exceed 25 g, including the
mounting but excluding the cable. For further information, see ISO 5349-2:2001, 6.1.5.
NOTE The accelerometer is a sensitive element intended to pick up the vibration and to convert it into
electrical signals. A tri-axial accelerometer permits simultaneous measurements in the x, y and z axes.
5.3 Fastening of accelerometer
The accelerometer shall be mounted firmly on the handle by means of a fastening device, in accordance
with ISO 5349-2:2001.
For measurement on handles with resilient covers (e.g. cushioned handle), mount the accelerometer in
accordance with ISO 5349-2:2001, 6.1.4.2, and perform one or the other of the following actions:
— remove the resilient material from the area beneath the transducers;
— fix the transducers using a force which fully compresses the resilient material.
Mountings shall be in accordance with ISO 5349-2:2001, D.2.2 and D.2.3. The method given in
ISO 5349-2:2001, D.2.4, shall not be used.
5.4 Calibration
The accelerometer shall be calibrated in accordance with ISO 16063-1:1998.
The whole measuring chain, including the accelerometer, shall be checked before and after a sequence
of measurements using a calibrator which produces known accelerations at a known frequency. These
in-situ checks shall be carried out in accordance with ISO 8041-1:2017.
ISO 22867:2021(E)
5.5 Speed indicator
The rotational frequency of the engine shall be measured with an accuracy of ±1,0 % of the reading.
The speed indicator and its engagement with the machine shall not affect the operation of the machine
under test.
6 Measurement direction and location
Measurements shall be made at each hand-grip at which the operator normally holds the machine.
Measurements shall be made simultaneously in the three directions x, y and z.
The centre of gravity of the accelerometer shall be positioned as close as possible to, but at a maximum
distance of 20 mm from the handle contour. One of the axes of the accelerometer shall be parallel to the
axis of the handle.
The position of the accelerometer shall be as near as possible to the hand without obstructing normal
grip.
NOTE The specific conditions for each type of machine are given in Annexes A to E.
7 Test and operating conditions of machine
Measurements shall be carried out on a new machine, featuring standard equipment as provided by the
manufacturer, and with the fuel and oil tank(s) at least half-filled.
The engine shall be run-in prior to the test according to the manufacturer's recommendations. The
engine shall be at a stable normal operating temperature before the test is commenced.
The carburettor shall be set, where applicable, according to the instructions of the manufacturer.
-1
Unless otherwise specified, the engine speed for all test modes shall be kept constant to within ±3,5 s
during testing. No alteration to the initial settings is permitted once measurements have commenced. If
adjustment becomes necessary, the test shall be restarted after the adjustment.
The measured vibration of the machine is influenced by the operator. The operator shall therefore be
skilled and able to operate the machine properly. The machine shall be held in a manner consistent with
day-long use of the machine. Hand-held machines, except those suspended by harness, shall be held so
that there is no contact with the operator's body during measurements.
A test to obtain the required data for a given operating mode shall consist of a minimum of four
measurements, with a short break and a significant change of engine speed (to idling or racing speed,
-1
as applicable) between measurements. Stable speed conditions (constant to within ±3,5 s ) shall be
obtained before testing is continued.
At least four separate periods of vibration data shall be obtained, totalling at least 20 s.
Each signal duration used shall be at least 2 s, during which the engine speed shall be maintained within
-1
±3,5 s (unless otherwise specified).
The measurements shall be continued until the validity requirements given in Clause 8 are fulfilled.
The collection of data for the different operating modes need not be carried out in any particular
sequence.
NOTE The specific conditions for each type of machine are given in Annexes A to E.
ISO 22867:2021(E)
8 Measurement and calculation
8.1 General
The following measurements and calculations shall be made and are generally performed in the
sequence given here and as illustrated by Figure 1.
a) Measure the weighted acceleration of an operating mode in the three directions, a , a and
hwx,J hwy,J
a , for the left and right handles, where J is the operating mode idling (Id), full load (Fl) or racing
hwz,J
(Ra).
b) Calculate the root sum of squares of accelerations a of the three directions x, y and z for the
hvJ
operating mode selected.
c) Repeat a) and b) at least three more times.
d) Calculate the arithmetic mean of the operating mode, a .
hvJ
e) Repeat a), b) and d) until the coefficient of
...
Frequently Asked Questions
EN ISO 22867:2021 is a standard published by the European Committee for Standardization (CEN). Its full title is "Forestry and gardening machinery - Vibration test code for portable hand-held machines with internal combustion engine - Vibration at the handles (ISO 22867:2021)". This standard covers: This document specifies a vibration test code for determining, efficiently and under standardized conditions, the magnitude of vibration at the handles of portable hand-held, internal-combustion-engine-powered forest and garden machinery, including chain-saws, brush-cutters, grass-trimmers, edgers, pole-mounted powered pruners, hedge-trimmers and garden-blowers. Although the magnitudes measured are obtained in an artificial operation, they nevertheless give an indication of the values to be found in a real work situation. Vibration test codes, as described in this document, enable the manufacturer to verify the effort regarding low vibration design.
This document specifies a vibration test code for determining, efficiently and under standardized conditions, the magnitude of vibration at the handles of portable hand-held, internal-combustion-engine-powered forest and garden machinery, including chain-saws, brush-cutters, grass-trimmers, edgers, pole-mounted powered pruners, hedge-trimmers and garden-blowers. Although the magnitudes measured are obtained in an artificial operation, they nevertheless give an indication of the values to be found in a real work situation. Vibration test codes, as described in this document, enable the manufacturer to verify the effort regarding low vibration design.
EN ISO 22867:2021 is classified under the following ICS (International Classification for Standards) categories: 13.160 - Vibration and shock with respect to human beings; 65.060.80 - Forestry equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
EN ISO 22867:2021 has the following relationships with other standards: It is inter standard links to EN ISO 22867:2011. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN ISO 22867:2021 is associated with the following European legislation: EU Directives/Regulations: 2006/42/EC; Standardization Mandates: M/079, M/396. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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