Snow throwers - Safety requirements and test procedures - Part 4: Additional national and regional requirements (ISO 8437-4:2019)

This document provides additional national and regional requirements applicable to combustion engine powered pedestrian-controlled and ride-on snow throwers. It is intended to be used with ISO 8437-1, ISO 8437-2 and ISO 8437-3 to achieve the full requirements and means for pedestrian-controlled and ride-on snow throwers.
The ISO 8437 series deals with significant hazards, hazardous situations and events relevant to snow throwers used as intended and under the conditions reasonably foreseeable by the manufacturer.
It does not apply to the following:
— electrically powered and battery powered snow throwers;
— hand-held snow throwers;
— airport or highway snow removal machines and equipment;
— machines intended for use in potentially explosive atmospheres.
It does not deal with hazards related to the following:
— battery circuits exceeding 42 V;
— mains connected starting motor;
— magneto grounding circuits;
— working environment;
— electromagnetic compatibility.
The ISO 8437 series is not applicable to machines that were manufactured before the date of its publication.

Schneefräsen - Sicherheitsanforderungen und Prüfverfahren - Teil 4: Informationen zu nationalen und regionalen Bestimmungen (ISO 8437-4:2019)

Dieser Teil der ISO 8437 enthält Informationen zu nationalen und örtlichen Vorschriften, die für angetriebene, mitgängergesteuerte Schneefräsen und Schneefräsen mit aufsitzendem Maschinenführer gelten. Sie ist nicht für tragbare Schneefräsen gedacht oder für Schneeräummaschinen und Geräte, die auf Flughäfen, auf Autobahnen in der Landwirtschaft oder zu anderen Zwecken eingesetzt werden.
Diese Europäische Norm behandelt die für Schneefräsen zutreffenden signifikanten Gefährdungen, Gefährdungssituationen und -ereignisse, bei denen die Maschine bestimmungsgemäß genutzt wird und unter Bedingungen der fehlerhaften Nutzung, die vom Hersteller vernünftigerweise vorhersehbar sind.
Diese Internationale Norm behandelt keine Gefährdungen in Bezug auf:
   netzgespeiste, elektrische Schneefräsen
   batteriebetriebene Schneefräsen
Diese Internationale Norm behandelt keine Gefährdungen in Bezug auf:
   Batteriestromkreise, die 42 V überschreiten;
   Erdungsschaltkreise des Magnetzünders;
   Arbeitsumgebungen;
   die elektromagnetische Verträglichkeit
Diese Internationale Norm gilt nur für Maschinen, die nach dem Datum der Veröffentlichung dieser Norm hergestellt wurden.

Chasse-neige - Exigences de sécurité et essais - Partie 4: Exigences nationales et régionales additionnelles (ISO 8437-4:2019)

Le présent document fournit les exigences régionales et nationales supplémentaires qui s'appliquent aux chasse-neige à moteur à combustion à conducteur à pied et à conducteur porté. Il est destiné à être utilisé avec l'ISO 8437-1, l'ISO 8437-2 et l'ISO 8437-3 afin de se conformer pleinement aux exigences et mettre en œuvre tous les moyens de vérification pour les chasse-neige à conducteur à pied et à conducteur porté.
La série ISO 8437 traite des phénomènes dangereux, des situations dangereuses et des événements dangereux significatifs applicables aux chasse-neige lorsqu'ils sont utilisés comme prévu et dans des conditions raisonnablement prévisibles par le fabricant.
Elle ne s'applique pas:
— aux chasse-neige électriques et à batterie;
— aux chasse-neige portatifs;
— aux machines et au matériel de déneigement pour aéroports ou autoroutes;
— aux machines destinées à être utilisées dans des atmosphères explosibles.
Elle ne traite pas des phénomènes dangereux associés:
— aux circuits de batterie dépassant 42 V;
— aux démarreurs raccordés à l'alimentation secteur;
— aux circuits de mise à la masse de la magnéto;
— à l'environnement de travail;
— à la compatibilité électromagnétique.
La série ISO 8437 ne s'applique pas aux machines fabriquées avant sa date de publication.

Snežne freze - Varnostne zahteve in preskusni postopki - 4. del: Dodatne nacionalne in regionalne zahteve (ISO 8437-4:2019)

General Information

Status
Published
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
21-Apr-2021
Completion Date
21-Apr-2021

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SLOVENSKI STANDARD
SIST EN ISO 8437-4:2021
01-junij-2021
Snežne freze - Varnostne zahteve in preskusni postopki - 4. del: Dodatne
nacionalne in regionalne zahteve (ISO 8437-4:2019)

Snow throwers - Safety requirements and test procedures - Part 4: Additional national

and regional requirements (ISO 8437-4:2019)

Schneefräsen - Sicherheitsanforderungen und Prüfverfahren - Teil 4: Informationen zu

nationalen und regionalen Bestimmungen (ISO 8437-4:2019)

Chasse-neige - Exigences de sécurité et essais - Partie 4: Exigences nationales et

régionales additionnelles (ISO 8437-4:2019)
Ta slovenski standard je istoveten z: EN ISO 8437-4:2021
ICS:
43.160 Vozila za posebne namene Special purpose vehicles
SIST EN ISO 8437-4:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 8437-4:2021
---------------------- Page: 2 ----------------------
SIST EN ISO 8437-4:2021
EN ISO 8437-4
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2021
EUROPÄISCHE NORM
ICS 43.160
English Version
Snow throwers - Safety requirements and test procedures
- Part 4: Additional national and regional requirements
(ISO 8437-4:2019)

Chasse-neige - Exigences de sécurité et essais - Partie Schneefräsen - Sicherheitsanforderungen und

4: Exigences nationales et régionales additionnelles Prüfverfahren - Teil 4: Informationen zu nationalen

(ISO 8437-4:2019) und regionalen Bestimmungen (ISO 8437-4:2019)
This European Standard was approved by CEN on 9 February 2019.

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 8437-4:2021 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 8437-4:2021
EN ISO 8437-4:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

---------------------- Page: 4 ----------------------
SIST EN ISO 8437-4:2021
EN ISO 8437-4:2021 (E)
European foreword

This document (EN ISO 8437-4:2021) 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 October 2021, and conflicting national standards shall

be withdrawn at the latest by October 2021.

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.

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 8437-4:2019 has been approved by CEN as EN ISO 8437-4:2021 without any

modification.
---------------------- Page: 5 ----------------------
SIST EN ISO 8437-4:2021
---------------------- Page: 6 ----------------------
SIST EN ISO 8437-4:2021
INTERNATIONAL ISO
STANDARD 8437-4
First edition
2019-07
Snow throwers — Safety requirements
and test procedures —
Part 4:
Additional national and regional
requirements
Chasse-neige — Exigences de sécurité et essais —
Partie 4: Exigences nationales et régionales additionnelles
Reference number
ISO 8437-4:2019(E)
ISO 2019
---------------------- Page: 7 ----------------------
SIST EN ISO 8437-4:2021
ISO 8437-4:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 8437-4:2021
ISO 8437-4:2019(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 National/regional provisions related to ISO 8437-1 ...................................................................................................... 2

4.1 EU ....................................................................................................................................................................................................................... 2

4.2 USA and Canada ..................................................................................................................................................................................... 3

5 National/regional provisions related to ISO 8437-2 ...................................................................................................... 3

5.1 EU ....................................................................................................................................................................................................................... 3

5.2 USA and Canada ..................................................................................................................................................................................... 4

6 National/regional provisions related to ISO 8437-3 ...................................................................................................... 5

6.1 EU ....................................................................................................................................................................................................................... 5

6.2 USA and Canada ..................................................................................................................................................................................... 6

Annex A (normative) Noise test code (Grade 2) ....................................................................................................................................... 7

Annex B (normative) Vibration test code — Whole-body vibration and hand-arm vibration .................9

Bibliography .............................................................................................................................................................................................................................15

© ISO 2019 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 8437-4:2021
ISO 8437-4:2019(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 on 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 the following

URL: www .iso .org/iso/foreword .html.

This document was prepared by Technical Committee is ISO/TC 23, Tractors and machinery for

agriculture and forestry, Subcommittee SC 13, Powered lawn and garden equipment.

This first edition of ISO 8437-4, together with ISO 8437-1, ISO 8437-2 and ISO 8437-3, cancels and

replaces ISO 8437:1989, which has been technically revised. It also incorporates the Amendment

ISO 8437:1989/Amd.1:1997.
A list of all parts in the ISO 8437 series can be found on the ISO website.

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 2019 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 8437-4:2021
ISO 8437-4:2019(E)
Introduction
The structure of safety standards in the field of machinery is as follows.

a) Type-A standards (basic standards) give basic concepts, principles for design and general aspects

that can be applied to machinery.

b) Type-B standards (generic safety standards) deal with one or more safety aspects or safeguards

that can be used across a wide range of machinery:

1) type-B1 standards on particular safety aspects (e.g. safety distances, surface temperature,

noise);

2) type-B2 standards on safeguards (e.g. two-handed controls, interlocking devices, pressure

sensitive devices, guards).

c) Type-C standards (machinery safety standards) deal with detailed safety requirements for a

particular machine or group of machines.
ISO 8437 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 organizations, 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 provisions of this type-C standard are different from those which are stated in type-A or type-B

standards, the provisions of this type-C standard shall take precedence over the provisions of the other

standards for machines that have been designed and built according to the provisions of this type-C

standard.
© ISO 2019 – All rights reserved v
---------------------- Page: 11 ----------------------
SIST EN ISO 8437-4:2021
---------------------- Page: 12 ----------------------
SIST EN ISO 8437-4:2021
INTERNATIONAL STANDARD ISO 8437-4:2019(E)
Snow throwers — Safety requirements and test
procedures —
Part 4:
Additional national and regional requirements
1 Scope

This document provides additional national and regional requirements applicable to combustion engine

powered pedestrian-controlled and ride-on snow throwers. It is intended to be used with ISO 8437-1,

ISO 8437-2 and ISO 8437-3 to achieve the full requirements and means for pedestrian-controlled and

ride-on snow throwers.

The ISO 8437 series deals with significant hazards, hazardous situations and events relevant to snow

throwers used as intended and under the conditions reasonably foreseeable by the manufacturer.

It does not apply to the following:
— electrically powered and battery powered snow throwers;
— hand-held snow throwers;
— airport or highway snow removal machines and equipment;
— machines intended for use in potentially explosive atmospheres.
It does not deal with hazards related to the following:
— battery circuits exceeding 42 V;
— mains connected starting motor;
— magneto grounding circuits;
— working environment;
— electromagnetic compatibility.

The ISO 8437 series is not applicable to machines that were manufactured before the date of its

publication.
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 3744, Acoustics — Determination of sound power levels and sound energy levels of noise sources using

sound pressure — Engineering methods for an essentially free field over a reflecting plane

ISO 4871, Acoustics — Declaration and verification of noise emission values of machinery and equipment

ISO 5008, Agricultural wheeled tractors and field machinery — Measurement of whole-body vibration of

the operator
© ISO 2019 – All rights reserved 1
---------------------- Page: 13 ----------------------
SIST EN ISO 8437-4:2021
ISO 8437-4:2019(E)

ISO 8437-1:2019, Snow throwers — Safety requirements and test procedures — Part 1: Terminology and

common tests

ISO 8437-2:2019, Snow throwers — Safety requirements and test procedures — Part 2: Pedestrian-

controlled snow throwers

ISO 8437-3:2019, Snow throwers — Safety requirements and test procedures — Part 3: Ride-on snow

throwers

ISO 11201, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound

pressure levels at a work station and at other specified positions in an essentially free field over a reflecting

plane with negligible environmental corrections

ISO 12100, Safety of machinery — General principles for design — Risk assessment and risk reduction

ISO 16063, Methods for the calibration of vibration and shock transducers

ISO 20643:2005, Mechanical vibration — Hand-held and hand-guided machinery — Principles for

evaluation of vibration emission

EN 1032:2003+A1: 2008, Mechanical vibration — Testing of mobile machinery in order to determine the

vibration emission value

EN 14982:2009, Agricultural and forestry machinery — Electromagnetic compatibility — Test methods

and acceptance criteria

ASTM G 152, Standard practice for operating open flame carbon arc light apparatus for exposure of non-

metallic materials

ASTM G 155, Standard practice for operating xenon arc light apparatus for exposure of non-metallic

materials
SAE J594, Reflex Reflectors
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 12100 and ISO 8437-1 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 http: //www .electropedia .org/
4 National/regional provisions related to ISO 8437-1
4.1 EU
See Table 1.
2 © ISO 2019 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 8437-4:2021
ISO 8437-4:2019(E)
Table 1 — Additional requirements to ISO 8437-1 specific to the EU
Subclause of EU provision(s)
ISO 8437-1:2019

5.1 All snow throwers shall be marked legibly and indelibly with the following minimum

information:
— business name and address of the manufacturer or, where appropriate, the
manufacturer’s authorized representative;
The address can be simplified as long as the manufacturer (and, where appli-
cable, the manufacturer’s authorized representative) can be identified. In any

event, the address on the plaque shall be sufficient for mail to reach the company.

— designation of the machine;

The designation of the machinery can be achieved by a combination of letters and/

or numbers.
— year of construction, i.e. the year in which the manufacturing process is
completed;
— designation of the series or type;

The designation of the series or type is to allow the technical identification of

the product and this can be achieved by a combination of letters and/or numbers
and can be combined with the designation of the machinery.
— the machine mass with empty fuel tanks in kilograms;
— the nominal power in kilowatts;
— the serial number.
4.2 USA and Canada
See Table 2.
Table 2 — Additional requirements to ISO 8437-1 specific to the USA and Canada
Subclause of USA and Canada provision(s)
ISO 8437-1:2019

5.1 All snow throwers shall be marked legibly and indelibly with the following minimum

information:
— name of the manufacturer or supplier;
— markings that uniquely identify the machine (such as, model and/or serial
number);
— contact information for a source of replacement parts.

5.3 A 2 000 h carbon-arc test in accordance with ASTM G152 (Cycle 1) or a 2 000 h

xenon-arc test in accordance with ASTM G155 (Cycle 1) are accepted alternative test

methods.
5 National/regional provisions related to ISO 8437-2
5.1 EU
See Table 3.
© ISO 2019 – All rights reserved 3
---------------------- Page: 15 ----------------------
SIST EN ISO 8437-4:2021
ISO 8437-4:2019(E)
Table 3 — Additional requirements to ISO 8437-2 specific to the EU
Subclause of EU provision(s)
ISO 8437-2:2019
4.2.2.5 4.2.2.5 Engine speed

The snow thrower shall be designed in such a way that it is not possible to sustain an

engine speed greater than the maximum operating engine speed by the use of any
control or by simple adjustments made
— without tools, or
— with standard tools, or
— without breaking a manufactures seal.
Compliance shall be checked by inspection.

4.3.1 Fixed guards shall be fixed by systems that can be opened or removed only with tools.

A fixed guard, that has to be removed as a part of maintenance procedures as described

in the instruction handbook, shall be retained by a fixing system that shall remain

attached to the guard or to the machinery when the guard is removed. Where possible,

a fixed guard shall be incapable of remaining in place without its fixing system.

4.8 4.8 Electromagnetic immunity
All electronic components used in the systems to control the machine shall meet
the acceptance criteria of EN 14982:2009, 6.3 and 6.6 concerning electromagnetic
immu
...

SLOVENSKI STANDARD
oSIST prEN ISO 8437-4:2016
01-junij-2016
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Snow throwers - Safety requirements and test procedures - Part 4: Information on
national and regional provisions (ISO/DIS 8437-4:2016)

Schneefräsen - Sicherheitsanforderungen und Prüfverfahren - Teil 4: Informationen über

nationale und regionale Bestimmungen (ISO/DIS 8437-4:2016)
Chasse-neige - Exigences de sécurité et essais - Partie 4: Informations sur les
dispositions nationales et régionales (ISO/DIS 8437-4:2016)
Ta slovenski standard je istoveten z: prEN ISO 8437-4
ICS:
43.160 Vozila za posebne namene Special purpose vehicles
oSIST prEN ISO 8437-4:2016 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 8437-4:2016
---------------------- Page: 2 ----------------------
oSIST prEN ISO 8437-4:2016
DRAFT INTERNATIONAL STANDARD
ISO/DIS 8437-4
ISO/TC 23/SC 13 Secretariat: ANSI
Voting begins on: Voting terminates on:
2016-04-07 2016-07-06
Snow throwers — Safety requirements and test
procedures —
Part 4:
Information on national and regional provisions
Chasse-neige — Exigences de sécurité et essais —
Partie 4: Informations sur les dispositions nationales et régionales
ICS: 43.160
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
To expedite distribution, this document is circulated as received from the
BEING ACCEPTABLE FOR INDUSTRIAL,
committee secretariat. ISO Central Secretariat work of editing and text
TECHNOLOGICAL, COMMERCIAL AND
composition will be undertaken at publication stage.
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 8437-4:2016(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2016
---------------------- Page: 3 ----------------------
oSIST prEN ISO 8437-4:2016
ISO/DIS 8437-4:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland

All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 8437-4:2016
Contents

Foreword................................................................................................................................................................................... 3

Introduction ............................................................................................................................................................................ 4

1 Scope ....................................................................................................................................................................................... 5

2 Normative references...................................................................................................................................................... 5

3 Terms and definitions ..................................................................................................................................................... 6

4 National/regional provisions related to ISO 8437-1 – Terminology and common tests - EU ........ 6

5 National/regional provisions related to ISO 8437-2 – Pedestrian controlled snow throwers...... 7

6 National/regional provisions related to ISO 8437-3 – Ride-on snow throwers ................................... 8

Annex A (normative) Noise test code (Grade 2) ..................................................................................................10

A.1 General .............................................................................................................................................................................10

A.2 A-weighted sound power level determination ..............................................................................................10

A.3 A-weighted emission sound pressure level measurement at the operator position ...................10

A.4 Installation, mounting and operating conditions.........................................................................................10

A.5 Measurement uncertainties and declaration of noise emission values .............................................11

A.6 Information to be recorded and reported .......................................................................................................11

Annex B (normative) Vibration test code - Whole-body vibration and hand-arm vibration ..........11

B.1 General .............................................................................................................................................................................11

B.2 Quantities to be measured ......................................................................................................................................11

B.3 Instrumentation...........................................................................................................................................................11

B.4 Measurement procedure .........................................................................................................................................14

B.5 Measurement procedure .........................................................................................................................................15

B.6 Determination of the measurement result......................................................................................................16

B.7 Measurement uncertainties and declaration of vibration values.........................................................16

B.8 Information to be recorded and reported .......................................................................................................16

Bibliography ..........................................................................................................................................................................17

---------------------- Page: 5 ----------------------
oSIST prEN ISO 8437-4:2016
ISO/DIS 8437-4:2016(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. 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. www.iso.org/patents

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO's adherence to the WTO principles in the Technical

Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information

The committee responsible for this document is ISO/TC

ISO 8437 was prepared by Technical Committee ISO/TC 23, Tractors and Machinery for Agriculture and

Forestry, Subcommittee SC 13, Powered lawn and garden equipment.

ISO 8437 consists of the following parts under the general title Snow thrower – Safety requirements

and test procedures.
Part 1: Terminology and common tests
Part 2: Pedestrian controlled snow throwers
Part 3: Ride-on snow throwers
Part 4: National and regional provision
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Introduction
The structure of safety standards in the field of machinery is as follows:

a) Type-A standards (basic standards) give basic concepts, principles for design, and general aspects

that can be applied to machinery;

b) Type-B standards (generic safety standards) deal with one or more safety aspects or safeguards

that can be used across a wide range of machinery:

 type-B1 standards on particular safety aspects (e.g. safety distances, surface temperature, noise);

 type-B2 standards on safeguards (e.g. two-handed controls, interlocking devices, pressure sensitive

devices, guards);

c) Type-C standards (machinery safety standards) deal with detailed safety requirements for a

particular machine or group of machines.
This international standard is a type-C standard as stated in ISO 12100.

When provisions of this type-C standard are different from those which are stated in type-A or type-B

standards, the provisions of this type-C standard shall take precedence over the provisions of the other

standards for machines that have been designed and built according to the provisions of this type-C

standard.
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Snow throwers – Safety requirements and test procedures – Part
4: Information on national and regional provisions
1 Scope

This part of ISO 8437 provides information on national and regional provisions applicable to powered

pedestrian controlled and ride-on snow throwers. It is not intended to apply to hand-held snow

throwers nor to airport, highway, agricultural or other types of snow removal machines and equipment.

This standard deals with significant hazards, hazardous situations and events relevant to snow

throwers used as intended and under the conditions foreseen by the manufacturer.
This international standard does not deal with hazards related to:
 mains-operated electrical, snow throwers
 battery powered snow throwers
This international standard does not deal with hazards related to:
 battery circuits exceeding 42 V;
 magneto grounding circuits;
 working environment;
 electromagnetic compatibility

This international standard is not applicable to machines which are manufactured before the date of its

publication.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 3767 – 1 1998 Tractors, machinery for agriculture and forestry, powered lawn and

garden equipment -- Symbols for operator controls and other displays --
Part 1: Common symbols

ISO 3864 2002 Graphical symbols -- Safety colours and safety signs -- Part 1: Design

principles for safety signs in workplaces and public areas

ISO 5673 - 1 2004 Agricultural tractors and machinery -- Power take-off drive shafts and

power-input connection -- Part 1: General manufacturing and safety
requirements

ISO 8437 – 1 201x Snow throwers – Safety requirements and test procedures – Part 1:

Terminology and common tests

ISO 8437 – 2 201x Snow throwers – Safety requirements and test procedures – Part 2:

Pedestrian controlled snow throwers
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ISO 8437 - 3 201x Snow throwers – Safety requirements and test procedures – Part 3: Ride-

on snow throwers
EN ISO 11688 2009 Acoustics — Recommended practice for the design of low-noise
machinery and equipment

ISO 11684 1995 Tractors, machinery for agriculture and forestry, powered lawn and

garden equipment – Safety signs and hazard pictorials – General
principles
Safety of machinery - Basic concepts, general principles for design -
ISO 12100 2010
Part 1: Basic terminology, methodology

ISO 13857 2008 Safety of machinery - Safety distances to prevent hazard zones being

reached by upper and lower limbs

EN ISO 14982 2009 Agricultural and forestry machinery — Electromagnetic compatibility —

Test methods and acceptance criteria
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 12100 and ISO 8437-1 apply.

4 National/regional provisions related to ISO 8437-1 – Terminology and common
tests - EU
See table 1.

Table 1 – Amendments, exceptions, and requirements additional to ISO 8437-1 specific to EU

Sub clause of EU provision(s)
ISO 8437-1

A.1 All snow throwers shall be marked legibly and indelibly with the following minimum

information:
 business name and address of the manufacturer or where appropriate, his
authorised representative;
The address can be simplified as long as the manufacturer (and where
applicable, his authorised representative) can be identified. In any event, the
address on the plaque shall be sufficient for mail to reach the company.
 designation of the machine;
The designation of the machinery can be achieved by a combination of letters
and/or numbers.
 year of construction that is the year in which the manufacturing process is
completed;
 designation of the series or type;

The designation of the series or type is to allow the technical identification of

the product and this can be achieved by a combination of letters and/or
numbers and can be combined with the designation of the machinery.
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 the mass in kilograms of the machine with empty tanks;
 the nominal power in kilowatts;
 the serial number.
5 National/regional provisions related to ISO 8437-2 – Pedestrian controlled
snow throwers
5.1 EU
See table 2.

Table 2 – Amendments, exceptions, and requirements additional to ISO 8437-2 specific to EU

Sub clause of EU provision(s)
ISO 8437-2
4.2.2.5 Engine Speed

The snow thrower shall be designed in such a way that it is not possible to sustain an

engine speed greater than the maximum operating engine speed by the use of any control

or by simple adjustments made:
 Without tools, or
 With standard tools, or
 Without breaking a manufactures seal
Compliance to be checked by inspection.
4.9 4.9 Electromagnetic Immunity

All electronic components used in the systems to control the machine shall meet the

acceptance criteria of 6.3 and 6.6 in EN ISO 14982:2009 concerning electromagnetic

immunity.
4.10 4.10 Noise
4.10.1 Reduction by design, at source and by protective measures

Noise reduction shall be an integral part of the design process thus specifically taking into

account measures at the source. The success of the applied noise reduction measures is

assessed on the basis of the actual noise emission values.

The main sources causing and influencing noise are generally the air intake system, engine

cooling system, engine exhaust system, cutting system, and vibrating surfaces. EN ISO

11688-1:2009 gives general technical information and guidance for the design of low-

noise machines. Special care shall be taken in the acoustical design of machines.

4.10.2 Noise measurements

Emission sound pressure levels and sound power levels including the uncertainties shall

be determined in accordance with ISO 8437-4:—, Annex A.
4.11 4.11 Vibration
4.11.1 Reduction by design, at source and by protective measures

Vibration reduction shall be an integral part of the design process thus specifically taking

into account measures at the source. The success of the applied vibration reduction

measures is assessed on the basis of the actual vibration values.

The main sources causing and influencing vibration are generally the dynamic forces from

the engine, cutting means, unbalanced moving parts, impact in gear sprockets, bearings

and other mechanisms, travelling surface, speed, tyre pressure and the interaction

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between operator, machine and material being worked.
4.11.2 Vibration measurements

the vibration total value to which the hand-arm system is subjected and the uncertainty of

measurement shall be determined in accordance with ISO 8437-4:—, Annex B
5.2 USA and Canada
See table 3.

Table 3 – Amendments, exceptions, and requirements additional to ISO 8437-2 specific to USA &

Canada
Sub clause of USA and Canada provision(s)
ISO 8437-2

A 1 Use a grounded three-wire plug-in for all units with electric starting motors except for

double insulated starting motors.
6 National/regional provisions related to ISO 8437-3 – Ride-on snow throwers
6.1 EU
See table 4.

Table 4 – Amendments, exceptions, and requirements additional to ISO 8437-3 specific to EU

Sub clause of EU provision(s)
ISO 8437-3

4.1.2 The snow thrower shall be designed in such a way that it is not possible to sustain an

engine speed greater than the maximum operating engine speed by the use of any control

or by simple adjustments made:
 Without tools, or
 With standard tools, or
 Without breaking a manufactures seal
Compliance to be checked by inspection.
4.9 4.9 Electromagnetic Immunity
All electronic components used
...

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