Bsi bs en 12854 2003 + a1 2010

Unknown BRITISH STANDARD BS EN 12854 2003 Food processing machinery — Beam mixers — Safety and hygiene requirements ICS 67 260 ����������� � ��� � ������������������� ��������� ��� ���������� ��� +A1[.]

This British Standard is the UK implementation of

EN 12854:2003+A1:2010 It supersedes BS EN 12854:2003 which is withdrawn

The start and finish of text introduced or altered by amendment is indicated in the text by tags Tags indicating changes to CEN text carry the number of the CEN amendment For example, text altered by CEN amendment A1 is indicated by !"

The UK participation in its preparation was entrusted by Technical Committee MCE/3, Safeguarding of machinery, to Subcommittee MCE/3/5, Food industry machines

A list of organizations represented on this subcommittee can be obtained on request to its secretary

This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was

published under the authority

of the Standards Policy and

EUROPÄISCHE NORM March 2010

English Version

Food processing machinery - Beam mixers - Safety and hygiene

requirements

Machines pour les produits alimentaires - Broyeurs

verticaux à moteur montés sur chariot - Prescriptions

relatives à la sécurité et à l'hygiène

Nahrungsmittelmaschinen - Rüsselmixer - Sicherheits- und

Hygieneanforderungen

This European Standard was approved by CEN on 17 January 2003 and includes Amendment 1 approved by CEN on 17 January 2010 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, Croatia, 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

C O M I T É E U R O P É E N D E N O R M A L I S A T I O N

E U R O P Ä I S C H E S K O M I T E E FÜ R N O R M U N G

Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2010 CEN All rights of exploitation in any form and by any means reserved

worldwide for CEN national Members

Ref No EN 12854:2003+A1:2010: E

2

Contents

Page

Foreword 3

Introduction 4

1 Scope 5

2 Normative references 6

3 Terms and definitions - Description 6

4 List of significant hazards 9

5 Safety and hygiene requirements and/or measures 10

6 Verification of the safety and hygiene requirements and/or measures 16

7 Information for use 17

Annex A (normative) Noise test code for beam mixers (Grade 2 of accuracy) 20

Annex B (normative) Principles of design to ensure the cleanability of beam mixers 22

Annex ZA (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC" 40

Annex ZB (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC" 41

Bibliography 42

Foreword

This document (EN 12854:2002+A1:2010) has been prepared by Technical Committee CEN/TC 153 "Machinery intended for use with foodstuffs and feed", the secretariat of which is held by DIN

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 September 2010, and conflicting national standards shall be withdrawn at the latest by September 2010

This document includes Amendment 1, approved by CEN on 2010-01-17

This document supersedes EN 12854:2003

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

The start and finish of text introduced or altered by amendment is indicated in the text by tags!"͘

It is one of a series of standards on the design and construction of machines used in catering:

 vegetable cutting machines;

 catering attachments for machines having an auxiliary drive hub;

 food processors and blenders;

 hand-held blenders and whisks;

 salad dryers;

 vegetable peelers;

 cooking kettles equipped with stirrer and/or mixer

European Free Trade Association, and supports essential requirements of EU Directive(s)

For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document."

!deleted text"

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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom

4

Introduction

The use of beam mixers generates various mechanical and other hazards

!Their extensive use justifies the need of a standard covering both safety and the hazards of food hygiene."

!deleted text"

!This European Standard is a type C standard as stated in EN ISO 12100."

The machinery concerned and the extent to which hazards, hazardous situations and events are covered are indicated in the scope of this standard

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

 portable hand-held blenders and whisks which are covered by a specific standard !(see EN 12853)"

1.3 !This European Standard deals with all significant hazards, hazardous situations and events relevant to

beam mixers, when they are used as intended and under conditions of misuse which are reasonably foreseeable

by the manufacturer (see Clause 4)."

1.4 This European standard does not deal with the vibration hazard

1.5 !This European Standard is not applicable to beam mixers which are manufactured before the date of its

publication as EN."

6

references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies

EN 614-1:2006, Safety of machinery — Ergonomic design principles — Part 1: Terminology and general principles

EN 1088:1995, Safety of machinery — Interlocking devices associated with guards — Principles for design and selection

EN 1672-2:2005, Food processing machinery — Basic concepts — Part 2: Hygiene requirements

EN 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General requirements (IEC 60204:2005, modified)

EN 60529:1991, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989)

EN ISO 3744:1995, Acoustics — Determination of sound power levels of noise sources — Engineering method employing an enveloping measurement surface in an essentially free field over a reflecting plane (ISO 3744:1994)

EN ISO 4287:1998, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Terms, definitions and surface texture parameters (ISO 4287:1997)

EN ISO 4871:1996, Acoustics — Declaration and verification of noise emission values of machinery and equipment (ISO 4871:1996)

EN ISO 11201:1995, Acoustics — Noise emitted by machinery and equipment — Measurement of emission sound pressure levels at the work station and at other specified positions — Engineering method in an essentially free field over a reflecting plane (ISO 11201:1995)

EN ISO 12100-1:2003, Safety of machinery — Basic concepts, general principles for design — Part 1: Basic terminology, methodology (ISO 12100-1:2003)

EN ISO 12100-2:2003, Safety of machinery — Basic concepts, general principles for design — Part 2: Technical principles and specifications (ISO 12100-2:2003)

EN ISO 13849-1:2008, Safety of machinery — Safety related parts of control systems — Part 1: General principles for design (ISO 13849-1:2006)"

3 Terms and definitions - Description

3.1 Terms and definitions

!For the purposes of this document, the terms and definitions given in EN ISO 12100-1:2003 and the following apply."

head protecting device

fixed guard protecting the rotating tool

3.1.9

beam

assembly of the head carrier, the work head, the motor and the operating handle

3.2 Description of beam mixers

Beam mixers usually consist of the following parts as shown in Figure 1

8

Key

Figure 1 — Example of a typical beam mixer

4 List of significant hazards

4.2.1 Access to the danger zones

Mechanical hazards arise from contact with the rotating tool (see Figure 1, item 9 and 3.1.7)

The hazards may arise in (Figure 2):

 Zone 1: working zone

Hazard of cutting fingers

 Zone 2: motor and drive mechanism

Hazard of crushing or trapping hands

 Zone 3: hinge area of the beam

Hazards of crushing and entanglement of hands and fingers

 Zone 4: ejection of the tool in the event of breakage

Hazard of cutting or penetration to body

10

4.2.2 Loss of stability

Hazards of crushing and impact to the body

4.2.3 Incorrect assembly and fitting of tool

Hazards of cutting and impact to fingers and hands

4.3 Electrical hazards

Hazards of shock by direct or indirect contact with live parts and unexpected start up from restoration of energy supply after interruption

Emission of EMC disturbances interfering with safety arrangements of other machines

4.4 Hazards generated by neglecting hygiene in machine design

4.4.1 Hazards to the operator

Hazards from the food being processed, e.g inhalation of flour, sugar, … and from the cleaning agents used to disinfect the machine

4.4.2 Hazards to the consumer

Inability to clean food and splash areas effectively and thoroughly

Contamination of the food by undesirable materials including residues of food, microbiological organisms as well as residues of cleaning and disinfecting fluids

4.5 Hazards generated by neglecting ergonomic principles in machine design

Neglecting ergonomic principles can cause mistake in operation of controls and physical injury to the operator due

to over-reaching, heavy loads, akward posture, etc

4.6 Noise

Noise can be a hazard resulting in:

 permanent loss of hearing;

 tinnitus;

 tiredness, stress, etc

5 Safety and hygiene requirements and/or measures

5.1 General

!Machinery shall comply with the safety requirements and/or protective measures of this clause

In addition, the machine shall be designed according to the principles of EN ISO 12100-2 for relevant but not significant hazards, which are not dealt with by this European Standard

For hazards which are to be reduced by the application of the type B-standards such as EN 614-1, EN 1088,

EN 60204-1, EN 60529, EN ISO 12100 and EN ISO 13849-1, the manufacturer shall carry out a risk assessment to establish the requirements of the type B-standard This specific risk assessment shall be part of the general risk assessment of the machine."

5.2 Mechanical hazards

5.2.1 !General

All the interlocking devices associated with guards shall comply with EN 1088

The safety related parts of the control systems shall meet at least performance level c and at least category 1 in accordance with EN ISO 13849-1:2008."

5.2.2 Access to the danger zones

5.2.2.1 Zone 1

Access to the lower part of the work head shall be prevented by complying with the following measures specified in

!5.2.2.1.1" and !5.2.2.1.2" depending on the operating stage

5.2.2.1.1 During the work

The lower part of the work head shall be configured in such a manner that the distance between the head protecting device and the point nearest to the rotating part is over 90 mm, measured in accordance with Figure 3

The vertical height (x), between the rotating part and the head protecting device shall be greater than 50 mm

!Dimensions in millimetres"

Figure 3 — Safety dimensions of the head protecting device 5.2.2.1.2 During transport or removal of the tool

One of the following two measures shall be adopted:

 an interlocking device which prohibits the operation of the work head outside the working zone between

300 mm and 900 mm inclusive (see Figure 4a) from the level of access (ground for example) Out of this zone, operation by means of a hold-to-run control is permitted in order e.g to finish a process;

 a hold-to-run control device located on the control panel in such a manner that the operator has a clear view of the work head in all positions, see Figure 4a !(see 3.26.3 of EN ISO 12100-1:2003)"

In the instruction handbook there shall be an explicit requirement for instructions to be given on tool change For transport, the instructions shall state that the machine shall be locked in a safe position outside the operational area (see Figure 4b)

Figure 4a −−−− Working position Figure 4b −−−− Transport position

Figure 4 −−−− Working and transport positions and direction 5.2.2.2 Zone 2

Protection shall be by fixed guards covering the full length of the head carrier (removable only with the aid of tools)

Machines shall not roll or topple over when used in accordance with the manufacturer's intended use

Machines fitted with three castors shall have a locking device on at least one wheel to prevent it rolling

Machines fitted with four castors shall have at least two locking devices

Machines shall meet the test specified in, clause 6, Table 1

5.2.4 Incorrect assembly and fitting of the tool

The design of the machine shall ensure that detachable tools cannot be put in a wrong way

5.2.5 Handling, cleaning and storage of cutting devices

The manufacturer shall provide suitable instructions for the safe handling, cleaning and storage of the cutting devices

5.3 Electrical hazards

5.3.1 !General

Electrical equipment, for example switches, that may be exposed to water, e.g during cleaning, shall be protected

to an appropriate IP rating according to EN 60529 and EN 60204-1

Electrical equipment shall comply with EN 60204-1, with the following precision

5.3.2 Safety requirements related to electromagnetic phenomena

The machines shall have sufficient immunity to electromagnetic disturbances to enable them to operate safely as intended and not fail to danger when exposed to the levels and types of disturbances foreseeable in use

The manufacturer of the machines shall design, install and wire the equipment and sub-assemblies taking into account the recommendations of the suppliers of these sub-assemblies

5.3.3 Protection against electric shock

The electrical equipment shall comply with Clause 6 of EN 60204-1:2006

5.3.4 Power circuits

Devices for detection and interruption of over-current shall be applied to each live conductor in compliance with

EN 60204-1:2006, 7.2.3 In case of single phase machines, no such device is required for the earthed neutral conductor

5.3.5 Protection against earth faults in control circuits

For machinery supplied from a single-phase conductor and an earthed neutral conductor, there is no requirement for double pole interruption of the control circuit The single pole interruption shall be in the phase conductor (see 9.4.3.1 of EN 60204-1:2006)

5.3.6 Emergency stop

Machines shall be fitted with at least one emergency stop (see 10.7 of EN 60204-1:2006), as far as the risk assessment carried out by the manufacturer doesn't allow to establish that such a device would not reduce the stopping time, or would not enable the special measures, required to deal with the risk, to be taken

In general no emergency stop is required for beam mixers In this case particular attention shall be given to the accessibility of the normal OFF switch from the operator position

5.3.7 Motor enclosures

Where a motor has a degree of protection lower than IP23 it shall be mounted inside an enclosure (see 14.2 of

EN 60204-1:2006) that guarantees a minimum degree of protection of IP23."

5.4 Hygiene

5.4.1 General

The machine shall be designed in accordance with EN 1672-2 and the requirements given below It shall be designed in accordance with annex B

The following parts shall be considered to be in the food area as defined in EN 1672-2

 the stator and the sieve if exists;

 the rotating tool;

 the blade;

 the body of the work head;

 the head carrier (lower part)

Non food area

Splash area

Food area

However some parts of the food area, for example cutting devices, fixed plates and the components are not easy to clean and special instructions shall be provided for cleaning !(see 7.2)"

5.4.3 Splash area

The upper parts of the head carrier including ON/OFF controls shall be considered in the splash area as defined in

EN 1672-2

5.4.4 Non food area

The non food area includes any other areas other than splash areas and food areas outlined above

5.4.5 Surface finish

The maximum roughness values shall comply with the requirements of EN 1672-2 and annex B

5.4.6 Cleanability

All food and splash areas shall be easily cleanable and where necessary capable of being disinfected

In food contact and splash areas, fixings such as screws, bolts and rivets shall be avoided unless technically necessary Where technically necessary they shall be chosen from those of Figure B.17 of annex B

The manufacturer shall give in the instruction handbook detailed information regarding the cleaning procedures, intervals and products recommended to be used

NOTE Because of the problem of contamination the machines are not intended to be cleaned with water jet

!(see 7.2 e))"

5.5 Ergonomics

Regard shall be given to the safeguards set out !in 4.8 of EN ISO 12100-2:2003 and EN 614-1:2006" Any information necessary to achieve the ergonomic objectives which the user shall follow shall be included in the instruction handbook

16

6 Verification of the safety and hygiene requirements and/or measures

This clause contains the methods of testing for the presence and adequacy of the safety requirements stated in

clause 5 All safety measures contain self-evident criteria of acceptance

Verification of the requirements can be made by means of inspection, calculation, or testing These shall be applied to a machine in a fully commissioned condition but partial dismantling may be necessary for the purpose of some checks Such partial dismantling shall not invalidate the result of the verification

Methods of verification are given in Table 1

!Table 1 Clause Method of verification

5.2.3 Machine with the beam in the worst position shall be tilted 10° from the horizontal plane

in the worst direction

It shall be possible to apply a force of 25 N on a handle in the worst direction, if necessary, without causing the machine to topple over or rolling from a horizontal plane when the wheel(s) is (are) locked

Visual inspection

5.3 Verification shall be in accordance with Clause 18 of EN 60204-1:2006

7 Information for use

7.1 General

Information for use shall meet the requirements of !Clause 6 of EN ISO 12100-2:2003" An instruction handbook shall be provided

7.2 Instruction handbook

!The instruction handbook shall meet the requirements of 6.5 of EN ISO 12100-2:2003."

It shall indicate to the user the conditions of installation, use and maintenance to be met in order to achieve the electromagnetic compatibility

It shall include at least the following information:

a) information relating to transport, handling and storage:

 assembly and mounting conditions;

 information about prevention measures which have to be taken by the user including warning to use suitable flooring to prevent slipping;

 indication of how to connect the beam mixer to the power supply (particularly about protection against electrical overloading);

 indication on how to connect the power supply cord in order to avoid tripping over and falling

c) information relating to the equipment itself, in particular:

 detailed description of the equipment, its fittings, its guards and/or safety devices;

 comprehensive range of applications for which the beam mixers are intended, and prohibited usages

if any;

 machine weight and component weights if the machine is supplied in parts;

 declared noise emission values, following the requirements of annex A;

 data about electrical equipment (see 3.2 of EN 60204-1:1992) and electrical wiring diagram;

 value of the overcurrent protective device in the case of machines concerned by 5.3.4

d) information relating to the intended operating conditions:

 recommended dimensions of cooking pot;

18

 description of controls;

 modes and means for stopping the power drive unit;

 all normal operations indicating how to use the safeguards provided and any residual safeguards or safe systems of work which the user has to follow, and the appropriate training requirements including requirements of the pan;

 particular risks which may be generated by handling, cleaning and storing certain tools, and about specific safeguards which are necessary for such applications;

 prohibited applications;

 arrangements which the user has to take to ensure the machine is stable as required in 5.2.2;

 any limitation on hosing the machine;

 any ergonomic considerations which the user may take account of (see 5.4);

 dismantling of the tool (with regard to safety considerations);

 method of cleaning food areas, splash areas and non-food areas;

 dismantling of guards and their components including the fasteners and the correct method of cleaning (with regard to safety considerations);

 the instruction handbook (and any sales literature describing the performances of the machine) shall contain the following information on airborne noise emissions, determined and declared in accordance with Annex A:

 the A-weighted emission sound pressure level at workstations, where this exceeds 70 dB(A); where this level does not exceed 70 dB(A), this fact shall be indicated;

 the peak C-weighted instantaneous sound pressure value at workstations, where this exceeds 63

Pa (130 dB in relation to 20 µPa);

 the A-weighted sound power level emitted by the machinery, where the A-weighted emission sound pressure level at workstations exceeds 80 dB(A)

Whenever sound emission values are indicated the uncertainties "K" surrounding these values shall

be specified The operating conditions of the machinery during measurement and the measuring methods used shall be described."

The maintenance manual shall include:

 the lubrication drawing, frequency of operations and list of products to be used;

 the recommended technique for cleaning the machine, including recommendations for cleaning materials;

 instructions to isolate the machine in a safe condition in the event of the need to repair or maintain it;

 a list and identification of spare parts;

 electrical diagrams

!

f) accident or breakdown of the machine:

 the operating method to be followed in the event of accident or breakdown; if a blockage is likely to occur, the operating method to be followed so as to enable the equipment to be safely unblocked." The manufacturer shall draw the attention of the operator during maintenance to the hazard of residual voltage especially on capacitors

 the year of construction, that is the year in which the manufacturing process is completed;"

 designation of series or type;

 serial number, if any;

 rating information (voltage in volts, frequency in hertz, power rating in kilowatts)

20

Annex A

(normative)

Noise test code for beam mixers (Grade 2 of accuracy)

A.1 Sound measurements

A.1.1 Emission sound pressure level determination

EN ISO 11201 shall be used for the determination of the emission sound pressure level

Measurement shall be taken with the microphone, at a distance of 1 m from the vertical axis of the machine and at

a height of 1,6 m above the floor on that side where the highest value of the A-weighted sound pressure level is observed

A.1.2 Sound power level determination

If it is required !deleted text" to determine the sound power level of beam mixers, EN ISO 3744 shall be

applied In that case a parallelepipeded measurement surface shall be used

A.2 Installation and mounting conditions

The test environment shall comply with clause 6 of EN ISO 11201:1995 It shall be qualified according to the annex A of EN ISO 3744:1995

NOTE For tests in open site, it is assumed that the environmental correction K2 is less than or equal to 0,5 dB and is therefore negligible

The machine under test shall be standing on a reflecting ground plane

A.3 Operating conditions

The test shall be carried out with the work head of the beam mixer immersed in a pan of about 100 l filled with water 200 mm above the tool

A.4 Measurement

The measuring instruments shall be in compliance with clause 5 and 10.2.1 of EN ISO 11201:1995

The measuring time shall be at least 15s

A.5 Measurement uncertainty

A standard deviation of reproducibility of 0,5 dB to 2,5 dB is expected for the A-weighted emission sound pressure level determined according to EN ISO 11201 Regarding the application of EN ISO 3744 when determining the sound power level, a standard deviation of reproducability of 0,5 to 1,5 dB is expected

A.6 Information to be recorded

The information to be recorded covers all of the technical requirements of this noise test code, see e.g clause 12

of EN ISO 11201:1995 respectively clause 9 of EN ISO 3744:1995 Any deviations from this noise test code or from the basic standards upon which it is based shall be recorded together with the technical justification for such deviations

A.7 Information to be reported

The information to be included in the test report shall be at least that which the manufacturer of beam mixers requires to prepare a noise declaration or the user requires to verify the declared values

As a minimum the following information shall be included:

 reference to the basic noise emission standards used;

 descriptions of the mounting and operating conditions used;

 location of work stations and other specified positions;

 the noise emission values obtained

It shall be confirmed that all requirements of the noise test code have been fulfilled, or, if this is not the case, any unfulfilled requirements shall be identified Deviations from the requirements shall be stated and technical justification for the deviations shall be given

A.8 Declaration and verification of noise emission values

The declaration of the noise emission values shall be made as a dual number noise emission declaration according

to EN ISO 4871

!It shall declare the noise emission values L (LpA and LWA) and the respective uncertainty K (KpA and KWA) according to 7.2."

The uncertainty KpA and KWA are expected to have a value of 2,5 dB

The declared noise emission values shall be rounded to the nearest whole decibel The noise declaration shall state that the noise emission values have been obtained according to this noise test code and to the basic standards EN ISO 11201 and EN ISO 3744 If this statement is not true, the noise declaration shall indicate clearly what the deviations are from this noise test code (Annex A of this standard) and/or from this basic standards

If undertaken, verification shall be done according to EN ISO 4871 by using the same mounting, installation and operating conditions as those used for the initial determination of noise emission values