Bsi bs en 12851 2005 + a1 2010

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 na

Food processing

machinery — Catering

attachments for

machines having an

auxiliary drive hub —

Safety and hygiene

requirements

ICS 67.260

National foreword

This British Standard is the UK implementation of

EN 12851:2005+A1:2010 It supersedes BS EN 12851:2005 which is withdrawn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.

BS EN 12851:2005+A1:2010

This British Standard was

published under the authority

of the Standards Policy and

EUROPÄISCHE NORM

Machines pour les produits alimentaires - Accessoires pour

machines ayant une prise de mouvement auxiliaire -

Prescriptions relatives à la sécurité et à l'hygiène

Nahrungsmittelmaschinen - Großküchen-Vorsatzgeräte - Sicherheits- und Hygieneanforderungen

This European Standard was approved by CEN on 28 July 2005 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

EN 12851:2005+A1:2010 (E)

Contents

Foreword 3



Introduction 4



1





2





3





3.1





3.2





4





4.1





4.2





4.3





4.4





4.5





4.6





4.7





5





5.1





5.2





5.3





5.4





5.5





5.6





5.7





6





7





7.1





7.2





7.3





Annex A (normative) Principles of design to ensure the cleanability of catering attachments 27



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



BS EN 12851:2005+A1:2010

Foreword

This document (EN 12851:2005+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 12851:2005

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!"͘

!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 EU Directive(s)

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

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

 vegetable cutting machines;

 catering attachments for machines having an auxiliary drive hub;

 food processors and blenders;

 hand-held blenders and whisks;

 beam mixers;

 salad dryers;

 vegetable peelers;

 cooking kettles equipped with powered stirrer and/or mixer

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

!Their extensive use in numerous countries justifies the need of a standard covering both safety and the hazards

to food hygiene."

This European Standard is a type C standard as stated in EN ISO 12100-1

The machinery concerned and the extent to which hazards, hazardous situations and 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 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

BS EN 12851:2005+A1:2010

1 Scope

1.1 This European Standard specifies the safety and hygiene requirements for the design and manufacture of the following catering attachments intended to be connected to an auxiliary drive hub of machines used in catering (mainly but not exclusively planetary mixers) and to be used in the commercial and institutional catering industry:

 vegetable cutters and cheese graters;

 worm type attachments:

of jammed food, feeding and changing the tool (see Clause 4)

1.3 This European Standard is not applicable to:

 catering attachments which are exclusively part of the equipment of the machines they are intended for (as optional or standard equipment);

 the driving machines for which the attachments are intended (but the standard deals with the interface of the attachments with these machines);

 attachments including electrical equipment

1.4 Noise is not dealt with in this European Standard

1.5 This European Standard is not applicable to catering attachments which are manufactured before the date of its publication as EN

2 Normative references

The following referenced documents are indispensable for the application 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

!deleted text"

EN 12851:2005+A1:2010 (E)

EN 61310-1, Safety of machinery — Indication, marking and actuation — Part 1: Requirements for visual, auditory

and tactile signals (IEC 61310-1:1995)

EN ISO 4287, Geometrical product specifications (GPS) — Surface texture: Profile method — Terms, definitions

and surface texture parameters (ISO 4287:1997)

EN ISO 12100-1:2003, Safety of machinery — Basic concept, general principles for design — Part 1: Basic

terminology, methodology (ISO 12100-1:2003)

EN ISO 12100-2:2003, Safety of machinery — Basic concept, general principles for design — Part 2: Technical

principles (ISO 12100-2:2003)

!EN ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by the

upper limbs (ISO 13857:2008)"

3 Terms, definitions and description

3.1 Terms and definitions

For the purposes of this European Standard, the terms and definitions given in EN ISO 12100-1:2003 and the following apply

Attachments essentially consist of two parts:

a) A part common to all attachments which includes:

 a device which engages on a drive shaft from the driving machine;

 devices for fastening and positioning the attachment on the power drive machine either directly or via an adapter which allows the attachment to fit to other connecting systems (or to other machines)

b) A part specific to the attachment which includes the tools The main components of this part can be:

1) for vegetable cutting attachments and cheese grater (see Figure 1):

 a housing (5) into which a cutting device is inserted, the cutting device can be a blade (9) with or without a grid (3);

 a cover (4) incorporating the product feed device which is fixed to the housing;

 a feed device which may be a feed hopper (6) with pusher device (1) and/or plunger device (2);

 disc, cylinder or cone fitted with cutting/grating device of variable size (11) (the vegetable cutting attachment can be equipped with such tools), for cheese graters

Food product is loaded into the feed device and held against to the cutting device by manual pressure

on the pusher or plunger When the food is cut, it falls from the housing via the delivery chute (10) into a receptacle which is not part of the machine

BS EN 12851:2005+A1:2010

Figure 1 — Description of a vegetable cutting attachment and a cheese grater

2) for worm type attachments (see Figure 2):

 body (3) with a tray (2) equipped with a plunger device(1);

 worm with sieve (4) for worm-type fruit squeezers;

 worm and knife (5) which rotates in relation to a fixed grid (6) for meat mincer;

 worm which directly provides coffee feed and grinding for coffee grinders;

3) for strip cutters (see Figure 3):

 a body with a feed hopper (1) and a delivery chute (3) including sets of circular counter rotating knives (2)

Figure 3 — Description of strip cutter

4) for planetary mixers and whippers (see Figure 4):

 a head (1) supporting tools (2) working with planetary movement in a bowl (3)

BS EN 12851:2005+A1:2010

Key

1 Head

2 Tool

3 Bowl

Figure 4 — Description of planetary mixers and whippers attachment

5) for potato-mashers (see Figure 5):

 a rotating tool (2) above a fixed grid (3) inside a body (1)

Figure 5 — Description of a potato-masher

4 List of significant hazards

4.1 General

This clause contains all the significant hazards, hazardous situations and events, as far as they are dealt with in this document, identified by a risk assessment as significant for catering attachments, and which require action to eliminate or reduce the risk

Before using this document, it is important to carry out a risk assessment of the catering attachment to check that its significant hazards are identified in this clause

4.2 Mechanical hazards

4.2.1 For vegetable cutters and cheese graters

 Access to cutting/grating tool through the hopper and discharge area

Hazard of cutting and abrasion for hand and fingers

 Access to cutting/grating tool when the cover is opened

Hazard of cutting and abrasion for hand and fingers

BS EN 12851:2005+A1:2010

4.2.2 For worm type attachments

 Access to the worm through the hopper and the delivery chute

Hazard of cutting and crushing for hand and fingers

4.2.3 For strip cutters

 Access to the rotating blades through the hopper and the delivery chute

Hazard of cutting for hand and fingers

4.2.4 For milling systems

 Access to the mills through the hopper

Hazard of crushing for hand and fingers

4.2.5 For planetary mixers and whippers

 Access to the zone between rotating tool and bowl

Hazard of crushing, drawing in or trapping for hand and fingers

 Access to the zone between tool and body

Hazard of crushing for hand and fingers

4.3 Incorrect assembly and fitting

Hazard of cutting and impact for fingers or hands

4.4 Handling, cleaning and storage of cutting devices

Hazard of cutting and impact

4.5 Hazards generated by neglecting hygiene principles in the attachment design

Inability to clean food and splash areas effectively and thoroughly

Contamination of the food by undesirable materials including residues of food, microbiological material and residues of cleaning and disinfecting fluids

4.6 Hazards generated by neglecting ergonomic principles in attachment design

Lack of ergonomic principles can lead to errors in operation of controls, physical damage due to over-reaching, heavy loads, awkward posture, etc

4.7 Compatibility of the attachment with the driving machine

NOTE For hazards which are to be reduced by the application of type B standard such as !EN ISO 13857", EN 614-1,

EN 61310-1 and EN ISO 12100, the manufacturer should carry out a risk assessment to establish the requirements of the standard which are to be applied This specific risk assessment is part of the general risk assessment of the machine

Where the means of reducing the risk is by the physical arrangement or positioning of the installed machine, the manufacturer shall include in the instruction handbook a reference to the reduction means to be provided, and to any limiting value of the requirement, and, if appropriate, to the means of verification

Where the means of reducing the risk is by a safe system of working the machinery, the manufacturer shall include

in the instruction handbook details of the system and of the elements of training required by the operating personnel

5.2 Mechanical hazards

5.2.1 Vegetable cutters and cheese graters

5.2.1.1 Safeguards against access through feed chute and hopper

Access to the cutting/grating tool through each of the feed chutes and hoppers shall be prevented or the risk of access reduced by one of the following measures:

5.2.1.1.1 Mechanical interlocking between the rotation of the tool and opening of devices which shall allow access to the tool (e g pusher devices) by a device integrated in the attachment (e g clutch system) for stopping the movement in case of opening of the feed hopper within 4 s

5.2.1.1.2 A mechanically interlocked shutter plate which shall be brought in the position preventing the access to the blade at the base of the hopper, before the hinged pusher can be opened for permitting loading (see example

in Figure 6) It shall only be possible to open the shutter plate for processing of the product when the pusher is again entering the hopper

BS EN 12851:2005+A1:2010

Key

1 shutter plate with pusher device out of feed hopper

2 shutter plate with pusher device into feed hopper

3 Feed hopper

4 pusher device

5 cam interlocked shutter plate

Figure 6 — Example of access prevented by a mechanically interlocked shutter plate

5.2.1.1.3 Design for reducing the risk by all of the following combination of measures (see Figure 7):

 a cutter depth (e) of maximum 8 mm A permanent sign shall be affixed to the attachment for reminding that

the cutter depth shall not be higher than 8 mm;

 a cutter diameter (D) of maximum 230 mm;

 a feed inlet circumscribed diameter (d) of maximum 150 mm;

 the provision of a pusher device that descends by gravity for covering the feed inlet and that is shaped to the contours of the hoppers with a maximum clearance of 4 mm For feed inlet circumscribed diameters of maximum 80 mm the pusher can be replaced with a plunger;

EN 12851:2005+A1:2010 (E)

Key

e cutter depth reduced to less than or equal to 8 mm

D cutter diameter reduced to less than or equal to 230 mm

d feed inlet circumscribed diameter restricted to less than or equal to 150 mm

L safety reach distance

Figure 7 — Maximum dimensions of vegetable cutting attachments

 a safety distance in accordance with Table 1:

Table 1

Dimensions in millimetres Diameter of feed inlet Safety reach distance

55 < d ≤ 60 L ≥ 130

60 < d ≤ 80 L ≥ 150

80 < d ≤ 150 L ≥ 150 with pusher device

 clearly visible and permanent safety signs shall be fitted to indicate the remaining hazard when introducing the hand into the hopper (see Figure 8) For their characteristics, EN 61310-1 applies

BS EN 12851:2005+A1:2010

 limiting the severity of the risk as set out in the firsts two indents of 5.2.1.1.3 and the following:

 either a tool shall be required for the cover removal;

 or the design shall impose the operator to adopt a safe system at work and prevent impulsive opening of the cover, e g by requiring the use of both hands for the opening (see an example in Figure 9) The information for use shall include a warning about the dangers of removing the cover before the machine is

at stand still

EN 12851:2005+A1:2010 (E)

Figure 9 — Use of both hand for opening the cover 5.2.1.3 Measures against access through the discharge opening

The risk shall be reduced by design For rotating disc machines this could be achieved by contouring the underside

of the cutter device or ejector plate such that the only contact would be with a smooth surface or one which would tend to deflect the fingers away from the area of the blade or other hazard (see Figure 10) The ejector shall have a radiused end to eliminate any trap between it and the machine casing

For cheese grater with cylindrical or conical grating device, the internal part shall be without sharp edges and the

distance between the grating device and the housing shall be d ≤ 4 mm (see Figure 1b)

5.2.2 Worm type attachments

To reduce the risk of access from hopper to the worm the dimensions given in Table 2 shall be used (see Figure 11) and a plunger device shall be provided with the fruit squeezer The instruction handbook shall draw the attention to the need of using the plunger device

The requirements of 5.2.2.1 apply

Due to the weight in relation to stability, these attachments shall be limited (diameter of the grid) to a size ≤ 90 mm The diameter of the holes in the last grid towards the outlet shall be less than or equal to 8 mm

EN 12851:2005+A1:2010 (E)

The requirements of 5.2.2.1 apply

The risk of crushing of the fingers at the feed chute shall be reduced by at least one of the following solutions:

 the design of the worm with a maximum height h of the worm thread of 3 mm and a smooth surface of the

worm, or

 compliance with Table 2

5.2.3 Strip cutter

Openings (inlet and outlet) of the strip cutter shall comply with dimensions of Table 4 of !EN ISO 13857:2008"

5.2.4 Planetary mixer and whipper

To limit the level of hazard, the bowl capacity shall be less than 10 l

The minimum vertical distance between the upper edge of the bowl and the tool or between the upper edge of a bowl extension and the tool shall be at least 120 mm If a bowl extension is used, it shall be fixed or hinged In the latter case, it shall return by gravity to its normal safety position

2 shape for finger deflector

3 non cutting edge

Figure 12

5.3 Incorrect assembly and fitting

The design of the attachment shall ensure that it cannot be assembled in a wrong way

In addition, conditions of proper assembly and fitting shall be provided in the instruction handbook

5.4 Handling, cleaning and storage of cutting devices

The risk is from cutting by the sharp edge and the manufacturer shall provide suitable devices and instructions for the safe handling, cleaning and storage of the cutting devices

Where there is a foreseeable risk of cutting or impact the manufacturer shall provide a rack