ISO 7293:2021
(Main)Forestry machinery — Portable chain-saws — Engine performance and fuel consumption
Forestry machinery — Portable chain-saws — Engine performance and fuel consumption
This document specifies a method for testing the performance and fuel consumption of internal combustion engines used to power portable chain-saws.
Machines forestières — Scies à chaîne portatives — Puissance et consommation de carburant du moteur
Le présent document spécifie une méthode de mesure de la puissance et de la consommation de carburant des moteurs à combustion interne utilisés sur les scies à chaîne portatives.
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INTERNATIONAL ISO
STANDARD 7293
Third edition
2021-10
Corrected version
2022-01
Forestry machinery — Portable chain-
saws — Engine performance and fuel
consumption
Machines forestières — Scies à chaîne portatives — Puissance et
consommation de carburant du moteur
Reference number
ISO 7293:2021(E)
© ISO 2021
---------------------- Page: 1 ----------------------
ISO 7293:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© 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 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 7293:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Accuracy of measurements . 1
5 Power correction factors . 2
5.1 Definition . 2
5.2 Reference atmospheric conditions . 2
5.3 Test atmospheric conditions . 2
5.4 Determination of correction factor α . 2
6 Conditions of measurement .3
7 Operating method . .3
7.1 General . 3
7.2 Procedure . 4
7.2.1 Determination of the peak power and peak torque engine speed . 4
7.2.2 Determination of the power curve and fuel consumption curve . 4
8 Test report . 4
iii
© ISO 2021 – All rights reserved
---------------------- Page: 3 ----------------------
ISO 7293:2021(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 (hand-held) powered lawn and garden equipment
and forest machinery.
This third edition cancels and replaces the second edition (ISO 7293:1997), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the normative references have been updated:
— the mandatory terms and definitions clause has been inserted and subsequent clauses have been
renumbered;
— the "Apparatus" clause has been replaced with "Accuracy of measurements";
— the "Test conditions" clause has been replaced with "Power correction factors";
— the conditions of measurement have been revised;
— the operating method has been revised;
— a new Table 1, Sample test data record sheet, has been added.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete list of these bodies can be found at www.iso.org/members.html.
This corrected version of ISO 7293:2021 incorporates the following corrections:
— Formula (2) has been corrected.
iv
© ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 7293:2021(E)
Introduction
This document is a type-C standard as stated in ISO 12100.
This document is of relevance, in particular, for the following stakeholder groups representing the
market players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organisations, market surveillance, etc.).
Others can be affected by the level of machinery safety achieved with the means of the document by the
above-mentioned stakeholder groups:
— machine users/employers (small, medium and large enterprises);
— machine users/employees (e.g. trade unions, organizations for people with special needs);
— service providers, e. g. for maintenance (small, medium and large enterprises);
— consumers (in case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate at the drafting
process of this document.
The machinery concerned and the extent to which hazards, hazardous situations or hazardous events
are covered are indicated in the scope of this document.
When requirements of this type-C standard are different from those which are stated in type A or type
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.
v
© ISO 2021 – All rights reserved
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 7293:2021(E)
Forestry machinery — Portable chain-saws — Engine
performance and fuel consumption
1 Scope
This document specifies a method for testing the performance and fuel consumption of internal
combustion engines used to power portable chain-saws.
2 Normative references
The following documents are referred to in the text in such a way that
...
INTERNATIONAL ISO
STANDARD 7293
Third edition
2021-10
Forestry machinery — Portable chain-
saws — Engine performance and fuel
consumption
Machines forestières — Scies à chaîne portatives — Puissance et
consommation de carburant du moteur
Reference number
ISO 7293:2021(E)
© ISO 2021
---------------------- Page: 1 ----------------------
ISO 7293:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© 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 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 7293:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Accuracy of measurements . 1
5 Power correction factors . 2
5.1 Definition . 2
5.2 Reference atmospheric conditions . 2
5.3 Test atmospheric conditions . 2
5.4 Determination of correction factor α . 2
6 Conditions of measurement .3
7 Operating method . .3
7.1 General . 3
7.2 Procedure . 4
7.2.1 Determination of the peak power and peak torque engine speed . 4
7.2.2 Determination of the power curve and fuel consumption curve . 4
8 Test report . 4
iii
© ISO 2021 – All rights reserved
---------------------- Page: 3 ----------------------
ISO 7293:2021(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 (hand-held) powered lawn and garden equipment
and forest machinery.
This third edition cancels and replaces the second edition (ISO 7293:1997), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the normative references have been updated:
— the mandatory terms and definitions clause has been inserted and subsequent clauses have been
renumbered;
— the "Apparatus" clause has been replaced with "Accuracy of measurements";
— the "Test conditions" clause has been replaced with "Power correction factors";
— the conditions of measurement have been revised;
— the operating method has been revised;
— a new Table 1, Sample test data record sheet, has been added.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete list of these bodies can be found at www.iso.org/members.html.
iv
© ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 7293:2021(E)
Introduction
This document is a type-C standard as stated in ISO 12100.
This document is of relevance, in particular, for the following stakeholder groups representing the
market players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organisations, market surveillance, etc.).
Others can be affected by the level of machinery safety achieved with the means of the document by the
above-mentioned stakeholder groups:
— machine users/employers (small, medium and large enterprises);
— machine users/employees (e.g. trade unions, organizations for people with special needs);
— service providers, e. g. for maintenance (small, medium and large enterprises);
— consumers (in case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate at the drafting
process of this document.
The machinery concerned and the extent to which hazards, hazardous situations or hazardous events
are covered are indicated in the scope of this document.
When requirements of this type-C standard are different from those which are stated in type A or type
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.
v
© ISO 2021 – All rights reserved
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 7293:2021(E)
Forestry machinery — Portable chain-saws — Engine
performance and fuel consumption
1 Scope
This document specifies a method for testing the performance and fuel consumption of internal
combustion engines used to power portable chain-saws.
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 documen
...
NORME ISO
INTERNATIONALE 7293
Troisième édition
2021-10
Machines forestières — Scies à
chaîne portatives — Puissance et
consommation de carburant du
moteur
Forestry machinery — Portable chain-saws — Engine performance
and fuel consumption
Numéro de référence
ISO 7293:2021(F)
© ISO 2021
---------------------- Page: 1 ----------------------
ISO 7293:2021(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2021
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: +41 22 749 01 11
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse
ii
© ISO 2021 – Tous droits réservés
---------------------- Page: 2 ----------------------
ISO 7293:2021(F)
Sommaire Page
Avant-propos .iv
Introduction .v
1 Domaine d'application .1
2 Références normative . 1
3 Termes et définitions . 1
4 Exactitude des mesures . 1
5 Coefficients de correction de puissance . 2
5.1 Définition . 2
5.2 Conditions atmosphériques de référence . 2
5.3 Conditions atmosphériques d'essai . 2
5.4 Détermination du coefficient de correction α . 2
6 Conditions de mesure .3
7 Méthode de fonctionnement .3
7.1 Généralités . 3
7.2 Mode opératoire . 4
7.2.1 Détermination de la vitesse du moteur à la puissance maximale et au
couple maximal . 4
7.2.2 Détermination de la courbe de puissance et de la courbe de consommation
de carburant . 4
8 Rapport d'essai . 4
iii
© ISO 2021 – Tous droits réservés
---------------------- Page: 3 ----------------------
ISO 7293:2021(F)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes
nationaux de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est
en général confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude
a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,
gouvernementales et non gouvernementales, en liaison avec l'ISO participent également aux travaux.
L'ISO collabore étroitement avec la Commission électrotechnique internationale (IEC) en ce qui
concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a
été rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir
www.iso.org/directives).
L'attention est attirée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable
de ne pas avoir identifié de tels droits de propriété et averti de leur existence. Les détails concernant
les références aux droits de propriété intellectuelle ou autres droits analogues identifiés lors de
l'élaboration du document sont indiqués dans l'Introduction et/ou dans la liste des déclarations de
brevets reçues par l'ISO (voir www.iso.org/brevets).
Les appellations commerciales éventuellement mentionnées dans le présent document sont données
pour information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un
engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l'ISO liés à l'évaluation de la conformité, ou pour toute information au sujet de l'adhésion
de l'ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles
techniques au commerce (OTC), voir www.iso.org/avant-propos.
Le présent document a été élaboré par le comité technique ISO/TC 23, Tracteurs et matériels agricoles
et forestiers, sous-comité SC 17, Matériel pour jardins et pelouses et matériel forestier portatifs à main à
moteur.
Cette troisième édition annule et remplace la seconde édition (ISO 7293:1997), qui a fait l'objet d'une
révision technique.
Les principales modifications sont les suivantes:
— les références normatives ont été mises à jour ;
— l’article sur les termes et définitions a été ajouté et les articles suivant ont été renumérotés ;
— l’article «Appareillage» a été remplacé par «Exactitude des mesures» ;
— «conditions d'essai» a été remplacé par «Coefficients de correction de puissance» ;
— les conditions de mesure ont été révisées ;
— la méthode de fonctionnement a été révisée ;
— un nouveau Tableau 1, Exemple de fiche d'enregistrement des données d'essai a été ajouté.
Il convient que l’utilisateur adresse tout retour d’information ou toute question concernant le présent
document à l’organisme national de normalisation de son pays. Une liste exhaustive desdits organismes
se trouve à l’adresse www.iso.org/fr/members.html.
iv
© ISO 2021 – Tous droits réservés
---------------------- Page: 4 ----------------------
ISO 7293:2021(F)
Introduction
Le présent document est une norme de type C tel que mentionné dans l'ISO 12100.
Le présent document est particulièrement important pour les groupes de parties prenantes suivants,
qui représentent les acteurs du marché en matière de sécurité des machines:
— les fabricants de machines (petites, moyennes et grandes entreprises);
— les organismes de santé et de sécurité (autorités réglementaires, organismes de prévention des
risques professionnels, surveillance du marché, etc.).
D'autres peuvent être affectés par le niveau de sécurité des machines atteint avec les moyens du
document par les groupes de parties prenantes susmentionnés:
— les utilisateurs de machines/employeurs (petites, moyennes et grandes entreprises);
— les utilisateurs de machines/employés (par exemple: syndicats, organisations pour les personnes
ayant des besoins spéciaux);
— les prestataires de services, par exemple pour la maintenance (petites, moyennes et grandes
entreprises);
— les consommateurs (dans le cas de machines destinées à être utilisées par les consommateurs).
Les groupes de parties prenantes susmentionnés ont eu la possibilité de participer au processus de
rédaction du présent document.
Les machines concernées et la mesure dans laquelle les risques, les situations dangereuses ou les
événements dangereux sont couverts sont indiquées dans le domaine d'application du présent
document.
Lorsque les exigences de la présente norme de type C sont différentes de celles qui sont énoncées dans
les normes de type A ou de type B, les exigences de la présente norme de type C l'emportent sur celles
des autres normes pour les machines qui ont été conçues et construites conformément aux exigences de
la présente norme de type C.
v
© ISO 2021 – Tous droits réservés
---------------------- Page: 5 ----------------------
NORME INTERNATIONALE ISO 7293:2021(F)
Machines forestières — Scies à chaîne portatives —
Puissance et consommation de carburant du moteur
1 Domaine d'application
Le présent document spécifie une méthode de mesure de la puissance et de la consommation de
carburant des moteurs à combustion interne utilisés sur les scies à chaîne portatives.
2 Références normative
Les documents suivants sont cités dans le texte de sorte qu’ils constituent, pour tout ou partie de leur
contenu, des exigences du présent document. Pour les références datées, seule l’édition citée s’applique.
Pour les références non datées, la dernière édition du document de référence s'applique (y compris les
éventuels amendements).
ISO 5164, Produits pétroliers — Détermination des caractéristiques antidétonantes des carburants pour
moteurs — Méthode de recherche
ISO 12100, Sécurité des machines — Principes généraux de conception — Appréciation du risque et
réduction du risque
3 Termes et définitions
Pour les besoins du présent do
...
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 7293
ISO/TC 23/SC 17
Forestry machinery — Portable chain-
Secretariat: SIS
saws — Engine performance and fuel
Voting begins on:
20210722 consumption
Voting terminates on:
Machines forestières — Scies à chaîne portatives — Puissance et
20210916
consommation de carburant du moteur
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
ISO/FDIS 7293:2021(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN
DARDS TO WHICH REFERENCE MAY BE MADE IN
©
NATIONAL REGULATIONS. ISO 2021
---------------------- Page: 1 ----------------------
ISO/FDIS 7293:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© 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
CH1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/FDIS 7293:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative reference . 1
3 Terms and definitions . 1
4 Accuracy of measurements . 1
5 Power correction factors . 2
5.1 Definition . 2
5.2 Reference atmospheric conditions . 2
5.3 Test atmospheric conditions . 2
5.4 Determination of correction factor α . 2
6 Conditions of measurement . 3
7 Operating method . 3
7.1 General . 3
7.2 Procedure . 4
7.2.1 Peak power and peak torque engine speed determination . 4
7.2.2 Determination of the power curve and fuel consumption curve . 4
8 Test report . 4
© ISO 2021 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/FDIS 7293:2021(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 nongovernmental, 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.
This third edition cancels and replaces the second edition (ISO 7293:1997), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the normative references has been updated:
— the mandatory terms and definitions clause has been inserted and subsequent clauses have been
renumbered;
— the "Apparatus" clause has been replaced with "Accuracy of measurements";
— the "Test conditions" clause has been replaced with "Power correction factors";
— the conditions of measurement has been revised;
— the operating method has been revised;
— a new Table 1, Sample test data record sheet, has been added.
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 2021 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/FDIS 7293:2021(E)
Introduction
This document is a type-C standard as stated in ISO 12100.
This document is of relevance, in particular, for the following stakeholder groups representing the
market players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organisations, market surveillance, etc.)
Others can be affected by the level of machinery safety achieved with the means of the document by the
abovementioned 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 type
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.
© ISO 2021 – All rights reserved v
---------------------- Page: 5 ----------------------
FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 7293:2021(E)
Forestry machinery — Portable chain-saws — Engine
performance and fuel consumption
1 Scope
This document specifi
...
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