SIST EN ISO 10472-2:2008

Safety requirements for industrial laundry machinery - Part 2: Washing machines and washer-extractors (ISO 10472-2:1997)

Covers together with ISO 10472-1, most significant hazards associated with washing machines and washer-extractors of all configurations having a net usable cage volume 60 l. This part does not cover particular hazards for drawer-type washer extractors. This part does not cover the hazards caused by processing work which may create an explosive or flammable atmosphere inside the machine. This part complements the basic requirements as laid down in ISO/TR 12100-1 and ISO/TR 12100-2. It also gives guidance to the designer on assessing the risks associated with the hazards (see EN 1050) and on selecting measures for attaining the required safety level.

Sicherheitsanforderungen für industrielle Wäschereimaschinen - Teil 2: Wasch- und Waschschleudermaschinen (ISO 10472-2:1997)

Dieser Teil der ISO 10472 behandelt, zusammen mit ISO 10472-1, die meisten wesentlichen Gefährdungen,
die auftreten bei der Verwendung von Wasch- und Waschschleudermaschinen jeder Art, deren Trommel ein
Nettonutzvolumen > 60 l hat.
Dieser Teil der ISO 10472 berücksichtigt nicht die besonderen Gefährdungen bei Schubladen-Waschschleudermaschinen.
Dieser Teil der ISO 10472 behandelt nicht die Gefährdungen, die bei der Bearbeitung von Waschgut
verursacht werden, das eine explosionsfähige oder brennbare Atmosphäre in der Maschine erzeugen kann.
Dieser Teil der ISO 10472 ergänzt die grundlegenden Sicherheitsanforderungen von ISO/TR 12100-1 und
ISO/TR 12100-2. Er gibt dem Konstrukteur auch Anleitung bei der Einschätzung der mit den Gefährdungen
(siehe EN 1050) verbundenen Risiken und bei der Auswahl von Maßnahmen zur Erreichung des
erforderlichen Sicherheitsniveaus.
Zusatzeinrichtungen, z. B. Dosierpumpen für Chemikalien, Dampfventile und Zuleitungen, Entlüftungssysteme
sowie Zufuhr- und Entnahmesysteme für das Waschgut und Ableitung ins Freie, werden in diesem Teil der
ISO 10472 nicht berücksichtigt.

Exigences de sécurité pour les machines de blanchisserie industrielle - Partie 2: Machines à laver et laveuses-essoreuses (ISO 10472-2:1997)

La présente partie de l'ISO 10472 couvre, avec l'ISO 10472-1, la plupart des phénomènes dangereux significatifs associés aux machines à laver et laveuses-essoreuses de tous types dont le tambour a un volume net utile supérieur à 60 l. La présente partie de l'ISO 10472 ne couvre pas les risques particuliers liés à l'utilisation des laveuses-essoreuses à tiroirs. La présente partie de l'ISO 10472 ne couvre pas les risques engendrés par le traitement du linge pouvant générer une atmosphère explosive ou inflammable à l'intérieur de la machine. La présente partie de l'ISO 10472 vient en complément des exigences fondamentales spécifiées dans l'ISO/TR 12100-1 et l'ISO/TR 12100-2. Elle guide également le concepteur dans l'évaluation des risques liés aux phénomènes dangereux (voir l'EN 1050) et dans le choix des mesures à prendre pour atteindre le niveau de sécurité requis. La présente partie de l'ISO 10472 n'est pas applicable au matériel connexe (par exemple stockage et pompes d'alimentation des produits chimiques, vannes vapeur et tuyauteries d'alimentation, systèmes d'évent et systèmes de chargement et de déchargement et d'évacuation dans l'air).

Varnostne zahteve za industrijske stroje za nego perila - 2. del: Pralniki in ožemalniki (ISO 10472-2:1997)

General Information

• Status: Published
• Publication Date: 02-Nov-2008
• ICS: 97.060 - Laundry appliances
• Technical Committee: VSN - Safety of machinery
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 30-Oct-2008
• Due Date: 04-Jan-2009
• Completion Date: 03-Nov-2008
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Directive: 89/392/EEC - Machinery - Safety of machinery: general essential health and safety requirements
• Directive: 98/37/EC - Machinery
• Mandate: M/079 - Mandate to CEN and CENELEC for standardization in the field of machines
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: EN ISO 10472-2:2008 - Safety requirements for industrial laundry machinery - Part 2: Washing machines and washer-extractors (ISO 10472-2:1997)

Relations

• Replaces: SIST EN ISO 10472-2:2000 - Safety requirements for industrial laundry machinery - Part 2: Washing machines and washer-extractors (ISO 10472-2:1997)
• Effective Date: 01-Dec-2008

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 10472-2:2008
01-december-2008
1DGRPHãþD
SIST EN ISO 10472-2:2000
Varnostne zahteve za industrijske stroje za nego perila - 2. del: Pralniki in
ožemalniki (ISO 10472-2:1997)

Safety requirements for industrial laundry machinery - Part 2: Washing machines and

washer-extractors (ISO 10472-2:1997)

Sicherheitsanforderungen für industrielle Wäschereimaschinen - Teil 2: Wasch- und

Waschschleudermaschinen (ISO 10472-2:1997)

Exigences de sécurité pour les machines de blanchisserie industrielle - Partie 2:

Machines à laver et laveuses-essoreuses (ISO 10472-2:1997)
Ta slovenski standard je istoveten z: EN ISO 10472-2:2008
ICS:
97.060 Aparati za nego perila Laundry appliances
SIST EN ISO 10472-2:2008 en,fr

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

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SIST EN ISO 10472-2:2008
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SIST EN ISO 10472-2:2008
EUROPEAN STANDARD
EN ISO 10472-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2008
ICS 97.060 Supersedes EN ISO 10472-2:1997
English Version
Safety requirements for industrial laundry machinery - Part 2:
Washing machines and washer-extractors (ISO 10472-2:1997)

Exigences de sécurité pour les machines de blanchisserie Sicherheitsanforderungen für industrielle

industrielle - Partie 2: Machines à laver et laveuses- Wäschereimaschinen - Teil 2: Wasch- und

essoreuses (ISO 10472-2:1997) Waschschleudermaschinen (ISO 10472-2:1997)
This European Standard was approved by CEN on 12 October 2008.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European

Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national

standards may be obtained on application to the CEN Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the

official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,

Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10472-2:2008: E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 10472-2:2008
EN ISO 10472-2:2008 (E)
Contents Page

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

Annex ZA (informative) Relationship between this European Standard and the Essential

Requirements of EU Directive 98/37/EC ..............................................................................................4

Annex ZB (informative) Relationship between this European Standard and the Essential

Requirements of EU Directive 2006/42/EC .........................................................................................5

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SIST EN ISO 10472-2:2008
EN ISO 10472-2:2008 (E)
Foreword

The text of ISO 10472-2:1997 has been prepared by Technical Committee ISO/TC 72 “Textile machinery and

machinery for dry-cleaning and industrial laundering” of the International Organization for Standardization

(ISO) and has been taken over as EN ISO 10472-2:2008 by Technical Committee CEN/TC 214 “Textile

machinery and accessories” the secretariat of which is held by SNV.

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 April 2009, and conflicting national standards shall be withdrawn at the

latest by December 2009.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 10472-2:1997.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association, and supports essential requirements of EC Directives.

For relationship with EC Directives, see informative Annexes ZA and ZB, which are integral parts of this

document.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following

countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech

Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,

Sweden, Switzerland and the United Kingdom.
Endorsement notice

The text of ISO 10472-2:1997 has been approved by CEN as a EN ISO 10472-2:2008 without any

modification.
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SIST EN ISO 10472-2:2008
EN ISO 10472-2:2008 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 98/37/EC

This European Standard has been prepared under a mandate given to CEN by the European Commission

and the European Free Trade Association to provide a means of conforming to Essential Requirements of the

New Approach Directive Machinery 98/37/EC, amended by 98/79/EC.

Once this standard is cited in the Official Journal of the European Communities under that Directive and has

been implemented as a national standard in at least one Member State, compliance with the normative

clauses of this standard confers, within the limits of the scope of this standard, a presumption of conformity

with the relevant Essential Requirements of that Directive and associated EFTA regulations.

WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling within

the scope of this standard.
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SIST EN ISO 10472-2:2008
EN ISO 10472-2:2008 (E)
Annex ZB
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC

This European Standard has been prepared under a mandate given to CEN by the European Commission

and the European Free Trade Association to provide a means of conforming to Essential Requirements of the

New Approach Directive Machinery 2006/42/EC.

Once this standard is cited in the Official Journal of the European Communities under that Directive and has

been implemented as a national standard in at least one Member State, compliance with the normative

clauses of this standard confers, within the limits of the scope of this standard, a presumption of conformity

with the relevant Essential Requirements (except 1.4.2.1 § 2, 1.7.3, 1.7.4.2 t) and u)) of that Directive and

associated EFTA regulations.

WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling within

the scope of this standard.
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SIST EN ISO 10472-2:2008
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SIST EN ISO 10472-2:2008
INTERNATIONAL ISO
STANDARD 10472-2
First edition
1997-12-15
Safety requirements for industrial laundry
machinery —
Part 2:
Washing machines and washer-extractors
Exigences de sécurité pour les machines de blanchisserie industrielle —
Partie 2: Machines à laver et laveuses-essoreuses
Reference number
ISO 10472-2:1997(E)
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SIST EN ISO 10472-2:2008
ISO 10472-2:1997(E)
Contents
Page

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

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

3 Definitions ................................................................................................................................. 2

4 Hazards...................................................................................................................................... 4

5 Safety requirements and/or measures for the hazards identified in clause 4..................... 5

5.1 General ...................................................................................................................................... 5

5.2 Mechanical hazards.................................................................................................................. 6

5.2.1 Rotating cage ............................................................................................................................ 6

5.2.2 Manual drum doors.................................................................................................................. 6

5.2.3 Doors (cage and drum) ............................................................................................................ 6

5.2.4 Cage doors ................................................................................................................................ 6

5.2.5 Power-operated drum doors ................................................................................................... 6

5.2.6 Loss of stability......................................................................................................................... 7

5.2.7 Suspended washer-extractors................................................................................................. 8

5.2.8 Falling load and loading devices............................................................................................. 8

5.3 Electrical hazards...................................................................................................................... 8

5.4 Thermal hazards ....................................................................................................................... 8

5.4.1 Hot liquor................................................................................................................................... 8

5.4.2 Hot surfaces .............................................................................................................................. 9

5.4.3 Heat energy............................................................................................................................... 9

5.4.4 Viewing panels.......................................................................................................................... 9

Hazards generated by noise .................................................................................................... 9

5.5

5.6 Hazards associated with materials and substances.............................................................. 9

5.6.1 Aggressive chemical action..................................................................................................... 9

5.6.2 Fire and explosion .................................................................................................................... 9

5.6.3 Biological hazards .................................................................................................................... 10

5.7 Hazards due to neglect of ergonomic principles in machines design................................. 10

5.8 Failure of energy supply and control systems....................................................................... 10

5.8.1 Failure of energy supply .......................................................................................................... 10

5.8.2 Failure of control systems ....................................................................................................... 10

5.9 Hazards caused by unexpected ejection of machine parts................................................... 10

5.10 Particular hazards associated with barrier machines............................................................ 11

5.11 Particular hazards associated with tilting machines ............................................................. 11

5.11.1 Tilting controlled manually...................................................................................................... 11

5.11.2 Automatic tilting ....................................................................................................................... 11

5.11.3 Loading and unloading............................................................................................................ 11

5.11.4 Overturning............................................................................................................................... 12

5.11.5 Maintenance.............................................................................................................................. 12

6 Verification of safety requirements and/or measures........................................................... 12

7 Information concerning machine use..................................................................................... 19

© ISO 1997

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic

or mechanical, including photocopying and microfilm, without permission in writing from the publisher.

International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet [e-mail]
X.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
---------------------- Page: 10 ----------------------
SIST EN ISO 10472-2:2008
ISO ISO 10472-2:1997(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.

Draft International Standards adopted by the technical committees are circulated to the member bodies for

voting. Publication as an International Standard requires approval by at least 75 % of the member bodies

casting a vote.

International Standard ISO 10472-2 was prepared by Technical Committee ISO/TC 72, Textile machinery and

machinery for dry-cleaning and industrial laundering, Subcommittee SC 5, Industrial laundry and

dry-cleaning machinery.

ISO 10472 consists of the following parts, under the general title Safety requirements for industrial laundry

machinery:
— Part 1: Common requirements
— Part 2: Washing machines and washer-extractors
— Part 3: Washing tunnel lines including component machines
— Part 4: Air dryers
— Part 5: Flatwork ironers, feeders and folders
— Part 6: Ironing and fusing presses
iii
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SIST EN ISO 10472-2:2008
ISO 10472-2:1997(E) ISO
Introduction

This part of ISO 10472 is intended to instruct the designer of industrial laundry machinery in a systematic

manner, focusing on his particular type of machine, regarding the relevant essential safety requirements,

and to suggest possible state-of-the-art safety solutions.

The extent to which hazards are covered is indicated in the scope of this part of ISO 10472. In addition,

machinery should comply as appropriate with ISO/TR 12100-1 and ISO/TR 12100-2 for hazards which are not

specifically referred to in this part of ISO 10472.

All examples given in this part of ISO 10472 represent the state of the art. Equivalent solutions are

acceptable, provided they attain at least the same safety level.

The designer is presumed to have taken into account all the provisions of ISO 10472-1 before considering

this part of ISO 10472.
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SIST EN ISO 10472-2:2008
INTERNATIONAL STANDARD ISO ISO 10472-2:1997(E)
Safety requirements for industrial laundry machinery —
Part 2:
Washing machines and washer-extractors
1 Scope

This part of ISO 10472 covers, together with ISO 10472-1, most significant hazards associated with washing

machines and washer-extractors of all configurations having a net usable cage volume > 60 l.

This part of ISO 10472 does not cover particular hazards for drawer-type washer-extractors.

This part of ISO 10472 does not cover the hazards caused by processing work which may create an

explosive or flammable atmosphere inside the machine.

This part of ISO 10472 complements the basic requirements as laid down in ISO/TR 12100-1 and

ISO/TR 12100-2. It also gives guidance to the designer on assessing the risks associated with the hazards

(see EN 1050) and on selecting measures for attaining the required safety level.

This part of ISO 10472 does not apply to ancillary equipment, e.g. chemical supply pumps, steam valves

and supply pipe work, vent systems, work feed systems and discharge systems and ducting to the

atmosphere.
2 Normative references

The following standards contain provisions which, through reference in this text, constitute provisions of

this part of ISO 10472. At the time of publication, the editions indicated were valid. All standards are subject

to revision, and parties to agreement based on this part of ISO 10472 are encouraged to investigate the

possibility of applying the most recent editions of the standards indicated below. Members of IEC and

ISO maintain registers of currently valid International Standards.

ISO 10472-1:1997, Safety requirements for industrial laundry machinery — Part 1: Common requirements.

ISO/TR 12100-1:1992, Safety of machinery — Basic concepts, general principles for design — Part 1: Basic

terminology, methodology.

ISO/TR 12100-2:1992, Safety of machinery — Basic concepts, general principles for design — Part 2:

Technical principles and specifications.

ISO 13849-1:— , Safety of machinery — Safety-related parts of control systems — Part 1: General principles

for design.

ISO 13852:1996, Safety of machinery — Safety distances to prevent danger zones being reached by the

upper limbs.

ISO 13853:— , Safety of machinery — Safety distances to prevent danger zones being reached by the lower

limbs.
To be published.
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SIST EN ISO 10472-2:2008
ISO 10472-2:1997(E) ISO

ISO 14119:— , Safety of machinery — Interlocking devices associated with guards — Principles for design

and selection.

IEC 335-1:1991, Safety of household and similar electrical appliances — Part 1: General requirements.

IEC 335-2-7:1993, Safety of household and similar electrical appliances — Part 2: Particular requirements for

washing machines.

EN 349:1993, Safety of machinery — Minimum gaps to avoid crushing of parts of the human body.

EN 953:1997, Safety of machinery — General requirements for the design and construction of guards (fixed,

movable).
EN 1037:1995, Safety of machinery — Prevention of unexpected start-up.
EN 1050:1996, Safety of machinery — Risk assessment.

EN 1760-1:1997, Safety machinery — Pressure sensitive protective devices — Part 1: General principles for

the design and testing of pressure sensing mats and floors.

EN 1760-2:— , Safety of machinery — Pressure sensitive protective devices — Part 2: General principles for

the design and testing of pressure sensitive edges and pressure sensitive bars.

EN 60204-1:1992, Safety of machinery — Electrical equipment of machines — Part 1: General requirements.

[IEC 204-1:1992, modified]
3 Definitions
For the purposes of this part of ISO 10472, the following definitions apply.
3.1
washing machine
Machine performing only those operations required for washing textiles.
3.2
washer-extractor

Machine which combines the functions of textile washing and moisture extraction by centrifugal action.

3.2.1
fixed washer-extractor
Washer-extractor in which the drum is rigidly mounted in the frame.
3.2.2
suspended washer-extractor

Washer-extractor in which the drum is not rigidly connected to the frame but is secured by means of a

vibration-reducing system.
3.2.3
tilting washer-extractor

Fixed or suspended washer-extractor in which the drum tilts during loading and/or unloading.

To be published.
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SIST EN ISO 10472-2:2008
ISO ISO 10472-2:1997(E)
3.2.4
drawer-type washer-extractor

Fixed or suspended washer-extractor in which two halfcages slide horizontally out from the frame, in the

low position for loading and the high position for unloading.
3.2.5
top-loading, vertical axis washer-extractor

Washer-extractor in which the plane of the loading door is at a right angle to the vertical axis of the rotation

of the cage.
3.3
front-loading machine

Washing machine or washer-extractor in which the plane of the loading door is at a right angle to the

horizontal axis of rotation of the cage.
3.4
side-loading machine

Washing machine or washer-extractor in which the plane of the loading door is parallel to the horizontal

axis of rotation of the cage.
3.5
barrier machine

Washing machine or washer-extractor without direct contact between the loading and unloading positions

(e.g. separated by a wall).
3.6
aseptic machine
Washing machine or washer-extractor used for processing infected work.
3.7
infected work

Work which has been in contact with persons suffering or suspected of suffering from infectious diseases.

3.8
cage (basket)
Rotating container within which the work is held during the washing process.

NOTE — Generally the cage is fabricated from perforated stainless steel and supported on rigidly or flexibly mounted

bearings. The cage can be either undivided (open-pocket machines) or divided into two or more compartments (multi-

pocket machines).
3.9
drum

Container within which the cage operates, generally having the access door as an integral component.

3.10
G-factor

Dimensionless quotient of the centrifugal acceleration at the outer cage diameter and the gravitational

acceleration, obtained by the formula:
 n
G=⋅56, ⋅d
 
1000
 
where n is the rotational frequency, in reciprocal minutes;
d is the cage diameter, in centimetres.
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SIST EN ISO 10472-2:2008
ISO 10472-2:1997(E) ISO
4 Hazards
4.1 General

The hazards common to most industrial laundry machinery are listed in ISO 10472-1. Significant particular

hazards found in washers and washer-extractors are listed in 4.2 to 4.11.
4.2 Mechanical hazards
4.2.1 Rotating cage: crushing, shearing, entanglement, drawing-in and trapping.
4.2.2 Manual drum doors: crushing and trapping by falling door.

4.2.3 Doors (cage and drum): drawing-in, trapping, crushing and shearing caused by intended or

unintended rotation of the cage during loading or unloading, e.g. while positioning the cage.

4.2.4 Cage doors: crushing, shearing, impact due to incorrectly secured cage door leading to ejection of

machine parts.
4.2.5 Power-operated drum doors: crushing, shearing (closing), impact (opening).
4.2.6 Loss of stability (due to out-of-balance): impact.

4.2.7 Suspended washer-extractors: crushing between the suspended drum or attached components and

fixed elements of the machine, such as the frame.
4.2.8 Falling load and loading devices: impact, crushing.
4.3 Electrical hazards
See ISO 10472-1:1997, 4.2
4.4 Thermal hazards
4.4.1 Hot liquor: scalding from spillage and splashing.
4.4.2 Hot surfaces around the loading and unloading door(s): burns.

4.4.3 Heat energy: burns and scalding from unintended supply with open door or insufficient water level.

4.4.4 Viewing panels: scalding from hot liquor due to broken panels.
4.5 Hazards generated by noise
The extraction cycle may create a noise hazard.
4.6 Hazards associated with materials and substances
4.6.1 Aggressive chemical action: harmful malfunction of the machine.
4.6.2 Fire and explosion
4.6.2.1 Explosive vapour contained in the load: burns.
4.6.2.2 Gas- and oil-fired heating: burns.
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SIST EN ISO 10472-2:2008
ISO ISO 10472-2:1997(E)
4.6.3 Biological hazards
4.6.3.1 Contact with infected work.

4.6.3.2 Biological or chemical contamination of the public water supply arising from back-flow from the

machine.
4.7 Hazards due to neglect of ergonomic principles in machine design

Unhealthy posture due to inadequate height of the loading door of washing machines and of the hopper for

adding chemicals; excessive effort when unloading the washer-extractors.
4.8 Hazards caused by failure of energy supply and control systems

Mechanical hazard occurring if the operator reaches the cage during run down or enters the danger zone

during tilting (e.g. for maintenance).
4.8.1 Failure of energy supply.
4.8.2 Failure of control systems.
4.9 Hazards caused by unexpected ejection of machine parts
For instance, overspeed of power transmission.
4.10 Particular hazards associated with barrier machines

Entanglement, drawing-in and trapping by the cage or shearing or crushing by the closing power-operated

door due to required interaction of two operators, one on each side of a wall.
Contamination, when used as an aseptic machine (see 4.6.3.1).
4.11 Particular hazards associated with tilting machines

4.11.1 Tilting controlled manually: crushing and shearing between the tilting machine and fixed

elements.

4.11.2 Automatic tilting (unexpected start-up): crushing and shearing between the tilting machine and

fixed elements.
4.11.3 Loading and unloading: entanglement.
4.11.4 Overturning: crushing.
4.11.5 Maintenance: drawing-in or trapping.
5 Safety requirements and/or measures for the hazards identified in clause 4
5.1 General

The designer shall consider the common safety requirements and measures described in ISO 10472-1 in

addition to the particular hazards and measures described in this part of ISO 10472.

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SIST EN ISO 10472-2:2008
ISO 10472-2:1997(E) ISO
5.2 Mechanical hazards
5.2.1 Rotating cage

The drum doors of horizontal and vertical axis washer-extractors shall prevent access to the rotating cage

and shall be interlocked with guard locking (see ISO 10472-1:1997, 5.1.2). This interlock shall be arranged so

that door opening is prevented while the cage is rotating. This guard locking device may include, for

example, time-delay shut-off to drive-motor, power released spring loaded mechanical brake or motion

sensors.

The instruction handbook shall contain details of the testing and maintenance of the braking if used in

conjunction with a time-delay.

Hoppers for the manual addition of washing chemicals shall be fitted with means to prevent access to the

rotating cage. Such means shall be in accordance with ISO 13852:1996, table 4 (e.g. safety bars at the base

of the hopper and a fixed guard in the form of a weir allowing fluid flow but not access).

5.2.2 Manual drum doors

Upward opening doors shall be fitted with a device (e.g. a catch or damping cylinders) to prevent accidental

falling back of the door which could generate crushing or trapping hazards. The device shall operate even in

case of power failure.

This does not apply to top-loaded vertical axis washer-extractors where the light-weight door (less than

2 kg) opens over the centre.
5.2.3 Doors (cage and drum)

It shall not be possible to position the cage of multi-pocket or of side-loading machines using power when

any drum door is open. This requirement does not apply if the machine is automatically loaded or unloaded

and access to the danger zone is completely prevented.

For multi-pocket machines where rotation by gravity may create a hazard, measures shall be taken to

prevent this rotation while the cage and drum doors are open (e.g. mechanical brake, adequate to support

the static out-of-balance load in the maximum load case).
5.2.4 Cage doors

Measures shall be taken to prevent cage doors opening after the drum door has been closed and the

machine started.
Such measures may include, for example:
— ensuring adequate machine rigidity to prevent component flexing;

— providing a mechanical trapped-key system that cannot be removed from the cage door until the locking

mechanism is correctly engaged.

The instruction handbook shall include detailed advice concerning the inspection and maintenance of the

cage door locking means.
5.2.5 Power-operated drum doors
5.2.5.1 Door closing

The hazard due to the automatic closing of doors shall be prevented by one of the following means:

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SIST EN ISO 10472-2:2008
ISO ISO 10472-2:1997(E)

a) where practical, by limitation of force to less than 150 N, and kinetic energy at any door position to less

than 10 J and pressure less than 0,5 N/mm², until the gap is less than 8 mm (see EN 953:1997, 6.2.5);

b) access prevention by guards (see ISO 10472-1:1997
...