ISO/FDIS 20599
(Main)Manually portable (hand-held) powered lawn and garden equipment and forest machinery — Engine performance and fuel consumption
Manually portable (hand-held) powered lawn and garden equipment and forest machinery — Engine performance and fuel consumption
Standardize a method for testing the performance and fuel consumption of internal combustion engines used to power manually portable (hand-held) powered lawn and garden equipment and forest machinery, including chain-saws, hedge trimmers, brush-cutters, grass-trimmers, pole-mounted pruners, and edgers. The document will replace ISO 7293:2021 and 8893:2021 when published.
Matériel pour jardins et pelouses et matériel forestier portatifs à main à moteur — Performance du moteur et consommation de carburant
General Information
Relations
Buy Standard
Standards Content (Sample)
FINAL DRAFT
International
Standard
ISO/TC 23/SC 17
Manually portable (hand-held)
Secretariat: SIS
powered lawn and garden
Voting begins on:
equipment and forest machinery —
2024-10-04
Engine performance and fuel
Voting terminates on:
consumption
2024-11-29
Matériel pour jardins et pelouses et matériel forestier portatifs à
main à moteur — Performance du moteur et consommation de
carburant
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
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
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.
Reference number
FINAL DRAFT
International
Standard
ISO/TC 23/SC 17
Manually portable (hand-held)
Secretariat: SIS
powered lawn and garden
Voting begins on:
equipment and forest machinery —
Engine performance and fuel
Voting terminates on:
consumption
Matériel pour jardins et pelouses et matériel forestier portatifs à
main à moteur — Performance du moteur et consommation de
carburant
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.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
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 Reference number
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Accuracy of measurements . 2
5 Correction factors . 2
5.1 General .2
5.2 Test atmospheric conditions .3
5.3 Determination of correction factor α .3
6 Conditions of measurement . 3
7 Operating method . . 4
7.1 General .4
7.2 Procedure .4
7.2.1 General .4
7.2.2 Determination of the maximum power speed and maximum torque speeds .4
7.2.3 Determination of the power and fuel consumption curves .4
8 Test report . 5
iii
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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 first edition of ISO 20599 cancels and replaces ISO 7293:2021 and ISO 8893:2021, which have been
technically revised.
The main changes are as follows:
— the requirements have been combined into a single International Standard.
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
FINAL DRAFT International Standard ISO/FDIS 20599:2024(en)
Manually portable (hand-held) powered lawn and garden
equipment and forest machinery — 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 manually portable (hand-held) powered lawn and garden equipment and forest
machinery, for example, chain-saws, hedge trimmers, brush-cutters, grass-trimmers, pole-mounted pruners,
and edgers.
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 6531, Machinery for forestry — Portable chain-saws — Vocabulary
ISO 7112, Machinery for forestry — Portable brush-cutters and grass-trimmers — Vocabulary
ISO 5163, Petroleum products — Determination of knock characteristics of motor and aviation fuels —
Motor method
ISO 5164, Petroleum products — Determination of knock characteristics of motor fuels — Research method
ISO 10517, Powered hand-held hedge trimmers — Safety
ISO 11680-1, Machinery for forestry — Safety requirements and testing for pole-mounted powered pruners —
Part 1: Machines fitted with an integral combustion engine
ISO 11681-1, Machinery for forestry — Portable chain-saw safety requirements and testing — Part 1: Chain-
saws for forest service
ISO 11789, Powered edgers with rigid cutting means — Definitions, safety requirements and test procedures
ISO 11806-1, Agricultural and forestry machinery — Safety requirements and testing for portable, hand-held,
powered brush-cutters and grass-trimmers — Part 1: Machines fitted with an integral combustion engine
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 6531, ISO 7112, ISO 10517,
ISO 11680-1, ISO 11681-1, ISO 11789 and ISO 11806-1 apply.
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 https:// www .electropedia .org/
4 Accuracy of measurements
The following accuracy of measurements apply:
a) Torque: ±2 % of measured torque. The torque measuring system shall be calibrated to take friction
losses into account.
b) Engine speed: ±2 % of measured speed.
c) Fuel consumption: ±2 % of measured consumption.
d) Fuel temperature: ±2 °C.
e) Engine inlet air temperature: ±2 °C.
f) Barometric pressure: ±100 Pa.
5 Correction factors
5.1 General
An engine’s torque, power and fuel consumption will vary based on ambient temperature and pressure
conditions. To address test variances, this clause prescribes allowable test atmospheric conditions and
establishes a correction factor coefficient. This correction factor coefficient correlates the test atmospheric
conditions to reference atmospheric conditions. The test atmospheric conditions are specified in 5.2. The
reference atmospheric conditions and the calculation of the correction factor are specified in 5.3.
The corrected torque can be calculated using Formula (1):
T = αT (1)
o
where
T is the corrected torque (i.e. power under reference atmospheric conditions);
o
T is the measured torque (test torque).
The corrected power can be calculated using Formula (2):
PP=α (2)
o
where
P is the corrected power (i.e. power under reference atmospheric conditions);
o
α is the correction factor;
P is the power calculated from the measured torque (test power).
The corrected specific fuel consumption may be calculated using Formula (3):
F = F /P (3)
SCo C o
where
F is the corrected specific fuel consumption (i.e. specific fuel consumption under reference atmos-
SCo
pheric conditions);
F is the measured fuel consumption (test fuel consumption);
C
5.2 Test atmospheric conditions
The following atmospheric conditions shall be maintained throughout the test:
a) Temperature (T): 14,85 °C ≤ T ≤ 34,85 °C
b) Dry atmospheric pressure (P ): 90 kPa<
s s
5.3 Determination of correction factor α
The test atmospheric conditions shall be corrected to a temperature of 298 K and a dry pressure of 99 kPa.
The dry pressure is based on a total pressure of 100 kPa and a water vapour pressure of 1 kPa. The correction
factor α is obtained by applying Formula (4):
12,
06,
99 T +273,15
α= × (4)
P 298
s
where
P is the dry atmospheric pressure in kilopascals (kPa); i.e. the total barometric pressure minus water
s
vapour pressure;
T is the absolute temperature in degree Celsius (°C) of the air drawn in by the engine.
Conditions are complied with in the laboratory.
For a test to be valid, the correction factor shall be such that:
09,,31≤≤α 07
If these limits are exceeded, the corrected value obtained shall be given and the test conditions (temperature
and pressure) precisely stated in the test report.
6 Conditions of measurement
The following conditions of measurements apply.
a) Measurements shall be carried out on a machine with its standard equipment.
b) The machine shall be complete, except as noted in this clause, with all standard production auxiliaries
for its operation (filter, silencer, cooling system, etc.).
c) Chain-saws shall be tested without the cutting attachment.
d) Hedge trim
...
Style Definition
...
First edition
Formatted: French (Switzerland)
Formatted: French (Switzerland)
Date: 2024-08-05
Formatted: zzCover large, Left, Indent: Left: 0 cm,
Right: 0 cm
ISO/TC 23/SC 17
Secretariat: SIS
Formatted: Font: Not Bold, Font color: Auto, English
(United Kingdom)
Formatted: Left, Indent: Left: 0 cm, Right: 0 cm
Formatted
Date: 2024-09-19 .
Formatted: Cover Title_A1, Indent: Left: 0 cm, Right: 0
Manually Portableportable (hand-held) Powered Lawnpowered lawn and
cm
Garden Equipmentgarden equipment and Forest Machinery forest
machinery — Engine performance and fuel consumption
Machines forestières — SciesMatériel pour jardins et pelouses et matériel forestier portatifs à
Formatted
...
chaîne portatives — Puissancemain à moteur — Performance du moteur et consommation de
carburant du moteur
FDIS stage
ISO 20599: XXXX
Formatted: English (United Kingdom)
Formatted: Default Paragraph Font, English (United
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of
Kingdom)
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
Formatted: English (United Kingdom)
permission. Permission can be requested from either ISO at the address below or ISO’s member body in the
Formatted: Adjust space between Latin and Asian text,
country of the requester.
Adjust space between Asian text and numbers
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Formatted: French (Switzerland)
EmailE-mail: copyright@iso.org
Formatted: French (Switzerland)
Website: www.iso.orgwww.iso.org
Formatted: French (Switzerland)
Published in Switzerland
Formatted: French (Switzerland)
Formatted: English (United Kingdom)
iii
Formatted: Font: 11 pt
Formatted: HeaderCentered
Formatted: Font: 11 pt
Foreword . 4
Formatted: Left: 1.5 cm, Right: 1.5 cm, Top: 1.4 cm,
Bottom: 1 cm, Width: 21 cm, Height: 29.7 cm, Footer
1 Scope . 1
distance from edge: 0.5 cm
2 Normative references . 1
3 Terms and definitions . 1
4 Accuracy of measurements . 2
5 Correction factors . 2
5.1 General. 2
5.2 Test atmospheric conditions . 3
5.3 Determination of correction factor α . 3
6 Conditions of measurement . 3
7 Operating method . 4
7.1 General. 4
7.2 Procedure . 5
8 Test report . 5
Table 1 — Sample test data record sheet . 7
Formatted: FooterPageRomanNumber
iv © ISO 2023 – All rights reserved
iv
Formatted: Font: 11 pt
Formatted: HeaderCentered, Left
Formatted: Font: 11 pt
Formatted: FooterPageRomanNumber
v
Formatted: Font: 11 pt
Formatted: HeaderCentered
Formatted: Font: 11 pt
Contents
Foreword . vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Accuracy of measurements . 2
5 Correction factors . 2
6 Conditions of measurement . 4
7 Operating method . 5
8 Test report . 6
Formatted: FooterPageRomanNumber
vi © ISO 2023 – All rights reserved
vi
Formatted: Font: 11 pt
Formatted: HeaderCentered, Left
Formatted: Font: 11 pt
Foreword
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
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
Formatted: Adjust space between Latin and Asian text,
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of
Adjust space between Asian text and numbers
ISO documentsdocument 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).
Formatted: English (United Kingdom)
Field Code Changed
Attention is drawnISO draws attention to the possibility that some of the elementsimplementation of this
document may beinvolve the subjectuse of (a) patent(s). ISO takes no position concerning the evidence,
validity or applicability of any claimed patent rights. in respect thereof. As of the date of publication of this
document, ISO had not received notice of (a) patent(s) which may be required to implement this document.
However, implementers are cautioned that this may not represent the latest information, which may be
obtained from the patent database available at www.iso.org/patents. 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.htmlwww.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 first edition of ISO 20599 cancels and replaces ISO 7293:2021 and ISO 8893:2021, for which have been
Formatted: Default Paragraph Font
technically revised.
Formatted: Default Paragraph Font
Formatted: Default Paragraph Font
The main changes are as follows:
— the requirements have been combined here into a single International Standard for Manually Portable
Formatted: List Continue 1, Adjust space between Latin
(hand-held) Powered Lawn and Garden Equipment and Forest Machinery — Engine performance and fuel
and Asian text, Adjust space between Asian text and
consumption. numbers
Any feedback or questions on this document should be directed to the user’s national standards body. A
Formatted: English (United Kingdom)
complete listlisting of these bodies can be found at www.iso.org/members.html.
Field Code Changed
Formatted: Font: Cambria, 11 pt, English (United
Kingdom)
Formatted: Tab stops: Not at 7.99 cm
Formatted: FooterPageRomanNumber
vii
FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 20599:2024(E)
Formatted: Main Title 1, Adjust space between Latin
Manually Portableportable (hand-held) Powered Lawnpowered lawn
and Asian text, Adjust space between Asian text and
and Garden Equipmentgarden equipment and Forest Machinery forest
numbers
machinery — 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 manually portable (hand-held) powered lawn and garden equipment and forest
machinery, for example, chain-saws, hedge trimmers, brush-cutters, grass-trimmers, pole-mounted pruners,
and edgers.
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 6531, Machinery for forestry — Portable chain-saws — Vocabulary
Formatted: Default Paragraph Font
Formatted
...
ISO 7112, Machinery for forestry — Portable brush-cutters and grass-trimmers — Vocabulary
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers, Tab
ISO 5163, Petroleum products — Determination of knock characteristics of motor and aviation fuels — Motor
stops: Not at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm +
method
3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
ISO 5164, Petroleum products — Determination of knock characteristics of motor fuels — Research method
Formatted
...
Formatted
...
ISO 10517, Powered hand-held hedge trimmers — Safety
Formatted
...
ISO 11680--1, Machinery for forestry — Safety requirements and testing for pole-mounted powered pruners —
Formatted
...
Part 1: Machines fitted with an integral combustion engine
Formatted
...
ISO 11681--1, Machinery for forestry — Portable chain-saw safety requirements and testing — Part 1: Chain-
Formatted
...
saws for forest service
ISO 11789, Powered edgers with rigid cutting means — Definitions, safety requirements and test procedures
Formatted
...
ISO 11806--1, Agricultural and forestry machinery — Safety requirements and testing for portable, hand-held,
Formatted
...
powered brush-cutters and grass-trimmers — Part 1: Machines fitted with an integral combustion engine
3 Terms and definitions
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
For the purposes of this document, the terms and definitions given in ISO 6531, ISO 7112, ISO 10517, ISO
Formatted
...
11680-1, ISO 11681-1, ISO 11789 and ISO 11806-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
Formatted: Adjust space between Latin and Asian text,
— — ISO Online browsing platform: available at https://www.iso.org/obphttps://www.iso.org/obp
Adjust space between Asian text and numbers, Tab
stops: Not at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm +
3.5 cm + 4.2 cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
ISO/DISFDIS 20599:2023(E2024(en)
Formatted: Font: 11 pt
Formatted: Font: 11 pt
Formatted: HeaderCentered
— — IEC Electropedia: available at https://www.electropedia.org/https://www.electropedia.org/
Formatted: Font: 11 pt
4 Accuracy of measurements
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
The following accuracy of measurements apply for the standard:
a) a) Torque: ±2 % of measured torque. The torque measuring system shall be calibrated to take friction
Formatted: Numbered + Level: 1 + Numbering Style: a,
losses into account.
b, c, … + Start at: 1 + Alignment: Left + Aligned at: 0 cm
+ Indent at: 0 cm, Adjust spa
...
PROJET FINAL
Norme
internationale
ISO/TC 23/SC 17
Matériel pour jardins et pelouses et
Secrétariat: SIS
matériel forestier portatifs à main à
Début de vote:
moteur — Performance du moteur
2024-10-04
et consommation de carburant
Vote clos le:
2024-11-29
Manually portable (hand-held) powered lawn and garden
equipment and forest machinery — Engine performance and fuel
consumption
LES DESTINATAIRES DU PRÉSENT PROJET SONT
INVITÉS À PRÉSENTER, AVEC LEURS OBSERVATIONS,
NOTIFICATION DES DROITS DE PROPRIÉTÉ DONT ILS
AURAIENT ÉVENTUELLEMENT CONNAISSANCE ET À
FOURNIR UNE DOCUMENTATION EXPLICATIVE.
OUTRE LE FAIT D’ÊTRE EXAMINÉS POUR
ÉTABLIR S’ILS SONT ACCEPTABLES À DES FINS
INDUSTRIELLES, TECHNOLOGIQUES ET COM-MERCIALES,
AINSI QUE DU POINT DE VUE DES UTILISATEURS, LES
PROJETS DE NORMES
INTERNATIONALES DOIVENT PARFOIS ÊTRE CONSIDÉRÉS
DU POINT DE VUE DE LEUR POSSI BILITÉ DE DEVENIR DES
NORMES POUVANT
SERVIR DE RÉFÉRENCE DANS LA RÉGLEMENTATION
NATIONALE.
Numéro de référence
PROJET FINAL
Norme
internationale
ISO/TC 23/SC 17
Matériel pour jardins et pelouses et
Secrétariat: SIS
matériel forestier portatifs à main à
Début de vote:
moteur — Performance du moteur
2024-10-04
et consommation de carburant
Vote clos le:
2024-11-29
Manually portable (hand-held) powered lawn and garden
equipment and forest machinery — Engine performance and fuel
consumption
LES DESTINATAIRES DU PRÉSENT PROJET SONT
INVITÉS À PRÉSENTER, AVEC LEURS OBSERVATIONS,
NOTIFICATION DES DROITS DE PROPRIÉTÉ DONT ILS
AURAIENT ÉVENTUELLEMENT CONNAISSANCE ET À
FOURNIR UNE DOCUMENTATION EXPLICATIVE.
DOCUMENT PROTÉGÉ PAR COPYRIGHT
OUTRE LE FAIT D’ÊTRE EXAMINÉS POUR
ÉTABLIR S’ILS SONT ACCEPTABLES À DES FINS
© ISO 2024 INDUSTRIELLES, TECHNOLOGIQUES ET COM-MERCIALES,
AINSI QUE DU POINT DE VUE DES UTILISATEURS, LES
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
PROJETS DE NORMES
INTERNATIONALES DOIVENT PARFOIS ÊTRE CONSIDÉRÉS
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
DU POINT DE VUE DE LEUR POSSI BILITÉ DE DEVENIR DES
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
NORMES POUVANT
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
SERVIR DE RÉFÉRENCE DANS LA RÉGLEMENTATION
NATIONALE.
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 Numéro de référence
ii
Sommaire Page
Avant-propos .iv
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Exactitude des mesures . 2
5 Coefficients de correction . 2
5.1 Généralités .2
5.2 Conditions atmosphériques d’essai .3
5.3 Détermination du coefficient de correction α .3
6 Conditions de mesurage . 3
7 Méthode de fonctionnement . 4
7.1 Généralités .4
7.2 Mode opératoire .4
7.2.1 Généralités .4
7.2.2 Détermination de la vitesse à la puissance maximale et aux vitesses maximales
de couple .4
7.2.3 Détermination de la courbe de puissance et de la courbe de consommation de
carburant.5
8 Rapport d’essai . 5
iii
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’ISO attire l’attention sur le fait que la mise en application du présent document peut entraîner l’utilisation
d’un ou de plusieurs brevets. L’ISO ne prend pas position quant à la preuve, à la validité et à l’applicabilité de
tout droit de brevet revendiqué à cet égard. À la date de publication du présent document, l’ISO n'avait pas
reçu notification qu’un ou plusieurs brevets pouvaient être nécessaires à sa mise en application. Toutefois,
il y a lieu d’avertir les responsables de la mise en application du présent document que des informations
plus récentes sont susceptibles de figurer dans la base de données de brevets, disponible à l'adresse
www.iso.org/brevets. L’ISO ne saurait être tenue pour responsable de ne pas avoir identifié tout ou partie de
tels droits de propriété.
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 première édition annule et remplace l’ISO 7293:2021 et l’ISO 8893:2021, qui ont fait l’objet d’une
révision technique.
Les principales modifications sont les suivantes:
— les exigences ont été regroupées dans une unique Norme internationale.
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
PROJET FINAL Norme internationale ISO/FDIS 20599:2024(fr)
Matériel pour jardins et pelouses et matériel forestier
portatifs à main à moteur — Performance du moteur et
consommation de carburant
1 Domaine d’application
Le présent document spécifie une méthode de vérification de la performance et de la consommation de
carburant des moteurs à combustion interne utilisés pour le fonctionnement des matériels pour jardins
et pelouses et matériels forestiers portatifs à main à moteur tels que les scies à chaîne, les taille-haies, les
débroussailleuses, les coupe-herbes, les perches élagueuses à moteur et les coupe-bordures.
2 Références normatives
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 6531, Matériel forestier — Scies à chaîne portatives — Vocabulaire
ISO 7112, Matériel forestier — Débroussailleuses et coupe-herbe portatifs — Vocabulaire
ISO 5163, Produits pétroliers — Détermination des caractéristiques antidétonantes des carburants pour
moteurs automobiles et aviation — Méthode moteur
ISO 5164, Produits pétroliers — Détermination des caractéristiques antidétonantes des carburants pour
moteurs — Méthode de recherche
ISO 10517, Taille-haies portatifs à moteur — Sécurité
ISO 11680-1, Matériel forestier — Exigences de sécurité et essais pour les perches élagueuses à moteur — Partie
1: Machines équipées d'un moteur à combustion interne intégré
ISO 11681-1, Matériel forestier — Exigences de sécurité et essais des scies à chaîne portatives — Partie 1: Scies
à chaîne pour travaux forestiers
ISO 11789, Coupe-bordures à moteur avec organe de coupe rigide — Définitions, exigences de sécurité et modes
opératoires d'essai
ISO 11806-1, Matériel agricole et forestier — Exigences de sécurité et essais pour débroussailleuses et coupe-
herbe portatifs à moteur — Partie 1: Machines équipées d'un moteur à combustion interne intégré
3 Termes et définitions
Pour les besoins du présent document, les termes et définitions de L’ISO 6531, l’ISO 7112, l’ISO 10517,
l’ISO 11680-1, l’ISO 11681-1, l’ISO 11789 et de l’ISO 11806-1 s’appliquent.
L’ISO et l’IEC tiennent à jour des bases de données terminologiques destinées à être utilisées en normalisation,
consultables aux adresses suivantes:
— ISO Online browsing platform: disponible à l’adresse https:// www .iso .org/ obp
— IEC Electropedia: disponible à l’adresse https:// www .electropedia .org/
4 Exactitude des mesures
Les mesures suivantes s’appliquent:
a) Couple: ±2 % du couple mesuré. Le système de mesure du couple doit être étalonné pour tenir compte
des pertes par frottement.
b) Vitesse du moteur: ±2 % de la vitesse mesurée.
c) Consommation de carburant: ±2 % de la consommation mesurée.
d) Température du carburant: ±2 °C.
e) Température d’air d’admission du moteur: ±2 °C.
f) Pression barométrique: ±100 Pa.
5 Coefficients de correction
5.1 Généralités
Le couple, la puissance et la consommation de carburant d'un moteur varient en fonction de la température
et de la pression ambiantes. Pour tenir compte des écarts entre les essais, cet article prescrit les conditions
atmosphériques admissibles pour les essais et établit un coefficient de correction. Ce coefficient de correction
permet de corréler les conditions atmosphériques d'essai aux conditions atmosphériques de référence. Les
conditions atmosphériques de l'essai sont spécifiées au 5.2. Les conditions atmosphériques de référence et le
calcul du coefficient de correction sont spécifiés au 5.3.
Le couple corrigé peut être calculé à l’aide de la Formule (1):
T = αT (1)
o
où
T est le couple corrigé (c’est-à-dire la puissance dans des conditions atmosphériques de référence);
o
T est le couple mesuré (couple d’essai).
La puissance corrigée peut être calculée à l’aide de la Formule (2):
PP=α (2)
o
où
P est la puissance corrigée (c’est-à-dire la puissance dans des conditions atmosphériques de référence);
o
α est le coefficient de correction;
P est la puissance calculée à partir du couple mesuré (puissance d’essai).
La consommation spécifique de carburant corrigée peut être calculée à l'aide de la formule (3):
F = F /P (3)
SCo C o
où
F est la consommation spécifique de carburant corrigée (c'est-à-dire la consommation spécifique de
SCo
carburant dans les conditions atmosphéri
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.