BRITISH STANDARD

Food processing
machinery — Salad
dryers — Safety and
hygiene requirements

ICS 67.260

12&23<,1*:,7+287%6,3(50,66,21(;&(37$63(50,77('%<&23<5,*+7/$:

BS EN
13621:2004
+A1:2010


BS EN 13621:2004+A1:2010

National foreword
This British Standard is the UK implementation of
EN 13621:2004+A1:2010. It supersedes BS EN 13621:2004 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withdrawn.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
Strategy Committee on
11 August 2004

© BSI 2010

ISBN 978 0 580 63001 9

Amendments/corrigenda issued since publication
Date

Comments

30 June 2010

Implementation of CEN amendment A1:2010


EUROPEAN STANDARD

EN 13621:2004+A1


NORME EUROPÉENNE
EUROPÄISCHE NORM

April 2010

ICS 67.260

Supersedes EN 13621:2004

English Version

Food processing machinery - Salad dryers - Safety and hygiene
requirements
Machines pour les produits alimentaires - Essoreuses à
salade - Prescriptions relatives à la sécurité et à l'hygiène

Nahrungsmittelmaschinen - Salatschleudern - Sicherheitsund Hygieneanforderungen

This European Standard was approved by CEN on 6 May 2004 and includes Amendment 1 approved by CEN on 18 March 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

COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG

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 13621:2004+A1:2010: E


BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)

Contents
page
Foreword ...................................................................................................................................................................... 4
Introduction ................................................................................................................................................................. 5
1

Scope .............................................................................................................................................................. 6

2

Normative references .................................................................................................................................... 6

3
3.1

3.2
3.2.1
3.2.2

Terms and definitions – Description............................................................................................................ 7
Terms and definitions ................................................................................................................................... 7
Description ..................................................................................................................................................... 7
Classes of machines ..................................................................................................................................... 7
Principal elements of a salad dryer: ............................................................................................................ 8

4
4.1
4.2
4.2.1
4.2.2
4.2.3
4.2.4
4.3
4.4
4.5

List of significant hazards ............................................................................................................................ 8
General ............................................................................................................................................................ 8
Mechanical hazards ....................................................................................................................................... 9
Access to the danger zones ......................................................................................................................... 9
Loss of stability............................................................................................................................................ 10
Incorrect assembly and fitting.................................................................................................................... 10
Inadequacy of mechanical strength........................................................................................................... 10
Electrical hazards ........................................................................................................................................ 10
Hazards generated by neglecting hygiene in machine design ............................................................... 10

Hazards generated by neglecting ergonomic principles in machine design ........................................ 10

5
5.1
5.2
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.3
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.3.6
5.3.7
5.4
5.4.1
5.4.2
5.4.3
5.4.4
5.4.5
5.4.6
5.5

Safety and hygiene requirements and/or measures ................................................................................ 10
General .......................................................................................................................................................... 10
Mechanical hazards ..................................................................................................................................... 11

General .......................................................................................................................................................... 11
Access to the danger zones ....................................................................................................................... 11
Stability ......................................................................................................................................................... 12
Assembly and fitting ................................................................................................................................... 12
Inadequacy of mechanical strength........................................................................................................... 12
Electrical hazards ........................................................................................................................................ 12
General .......................................................................................................................................................... 12
Safety requirements related to electromagnetic phenomena !deleted text"
" ................................. 12
Protection against electric shock .............................................................................................................. 12
Power circuits !deleted text"
" .............................................................................................................. 12
!Protection against earth faults in control circuits"
" ......................................................................... 13
!Emergency stop"
" ................................................................................................................................ 13
!Motor enclosures"
" .............................................................................................................................. 13
Hygiene ......................................................................................................................................................... 13
General .......................................................................................................................................................... 13
Food area ...................................................................................................................................................... 13
Splash area ................................................................................................................................................... 14
Non food area ............................................................................................................................................... 14
Surface finish ............................................................................................................................................... 14
Cleanability ................................................................................................................................................... 14
Ergonomics .................................................................................................................................................. 15

6

Verification of the safety and hygiene requirements and/or measures ................................................. 15


7
7.1
7.2
7.3

Information for use ...................................................................................................................................... 16
General .......................................................................................................................................................... 16
Instruction handbook .................................................................................................................................. 16
Marking ......................................................................................................................................................... 18

2


BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)

Annex
A.1
A.2
A.3
A.4
A.5
A.6
A.7
A.8

A (normative) Noise test code for salad dryers (Grade 2) ...................................................................... 19
Emission sound pressure level determination ......................................................................................... 19
Installation and mounting conditions........................................................................................................ 19

Operating conditions................................................................................................................................... 19
Measurement ................................................................................................................................................ 19
Measurement uncertainties ........................................................................................................................ 19
Information to be recorded ......................................................................................................................... 20
Information to be reported .......................................................................................................................... 20
Declaration and verification of noise emission values............................................................................ 20

Annex B (normative) Additional principles of design to ensure the cleanability of salad dryers ................. 21
B.1
Terms and definitions ................................................................................................................................. 21
B.2
Materials of construction ............................................................................................................................ 21
B.3
Design ........................................................................................................................................................... 22
B.3.1 Connections of internal surfaces ............................................................................................................... 22
B.3.2 Surface assemblies and overlaps .............................................................................................................. 26
B.3.3 Attaching means .......................................................................................................................................... 31
B.3.4 Feet, support and bases for cleaning the machines underneath ........................................................... 32
B.3.5 Ventilation openings ................................................................................................................................... 37
B.3.6 Hinges ........................................................................................................................................................... 37
B.3.7 Control panel ................................................................................................................................................ 38
B.4
Verification ................................................................................................................................................... 39
B.4.1 Materials ....................................................................................................................................................... 39
B.4.2 Design ........................................................................................................................................................... 39
B.5
Information for use ...................................................................................................................................... 40
B.5.1 Installation handbook.................................................................................................................................. 40
B.5.2 Instruction handbook .................................................................................................................................. 40
B.5.3 Maintenance handbook ............................................................................................................................... 40

Annex ZA (informative) !Relationship between this European Standard and the Essential
Requirements of EU Directive 98/37/EC"
" ............................................................................................... 41
Annex ZB (informative) !Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC"
" ........................................................................................... 42
Bibliography .............................................................................................................................................................. 43

3


BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)

Foreword
This document (EN 13621:2004+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 October 2010, and conflicting national standards shall be withdrawn at the latest
by October 2010.
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 includes Amendment 1, approved by CEN on 2010-03-18.
This document supersedes EN 13621:2004.
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 the catering, as:


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 stirrer and/or mixer.

!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 Directives.

For relationship with EU Directive(s), 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, 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.

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BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)

Introduction
The use of salad dryers involves various mechanical and other hazards.
!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."
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.

5


BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)


1

Scope

1.1 This document specifies the safety and hygiene requirements for the design and manufacture of salad dryers
taking account of installation, cleaning, removal of jammed food, feeding, maintenance and decommissioning. The
spinning function is obtained by the rotation of a perforated basket in which the product being processed is placed.
It applies to machines:


which are intended for use in the commercial and institutional catering industry;



having a rotation speed between 300 rpm and 900 rpm;



having a nominal output below 2 kW;



having a nominal volume of the basket less than 100 l.

These machines can be stationary or movable.
The machines concerned by this document are those appliances which are intended for eliminating by spinning the
water present on salad after washing. These machines can also be used for spinning other vegetables such as
spinach, watercress, radish, French beans, etc.
The machines covered by this document are not intended to be cleaned with water jet.

!This European Standard deals with all significant hazards, hazardous situations and events relevant to salad
dryers, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the
manufacturer (see Clause 4)."
NOTE
If the machine is not used under above conditions, the manufacturer should verify, when he is informed of such
situation, if the preventive measures remain valid (see 3.22 of EN ISO 12100-1:2003).

The feeding principle of the machine can be notably:


manual loading into the basket left in position in the machine;



placing in and withdrawal from the machine of the loaded basket.

1.2 Noise is not considered to be a significant hazard with salad dryers. This does not mean that the
manufacturer of these machines is absolved from reducing noise and making a noise declaration. Therefore a
noise test code is proposed in Annex A.
1.3

Vibrations are not considered as a hazard with these machines.

1.4 This document is not applicable to the machines which are manufactured before the date of publication of
this document by CEN.

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

6


BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)

EN 953, Safety of machinery — Guards — General requirements for the design and construction of fixed and
movable guards
EN 954-1:1996, Safety of machinery — Safety-related parts of control systems — Part 1: General principles for
design
EN 1088, 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, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989)
EN ISO 3744:2009, Acoustics — Determination of sound power levels of noise sources using sound pressure —
Engineering method 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, Acoustics — Declaration and verification of noise emission values of machinery and equipment (ISO
4871:1996)
EN ISO 11201:2009, Acoustics — Noise emitted by machinery and equipment — Measurement of emission sound
pressure levels at a work station and at other specified positions — Engineering method in an essentially free field
over a reflecting plane (ISO 11201:1995, including Cor 1:1997)

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 (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)
EN ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by upper and
lower limbs (ISO 13857:2008)"

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 in
!EN 1672-2:2005" and the following apply.
3.1.1
nominal load
mass of unsoaked lettuce, in kilograms, intended by the manufacturer to be processed

3.2

Description

3.2.1

Classes of machines


For those machines, two classes are defined:


class 1: machines having a rotation speed up to 500 rpm;
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BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)



class 2: machines having a rotation speed above 500 rpm up to 900 rpm.

3.2.2

Principal elements of a salad dryer:

Salad dryers are made up as show in Figure 1 of:


tank (1) for receiving the spinning water;



perforated basket (generally removable) (2) in which the product to be spun is placed;




basket drive device (3);



rotation generating device (4);



electrical equipment (5);



water evacuation device (6);



if necessary: a cover (7) intended to prevent from splashes. This cover is not a safeguard against mechanical
hazards, excepted for class 2.

Figure 1.a – Dryer with a cover

Figure 1.b – Dryer without a cover

Figure 1 — Example of a dryer

4
4.1

List of significant hazards
General


!This clause contains all the significant hazards, hazardous situations and events, as far as they are dealt with in this
standard, identified by risk assessment as significant for this type of machinery, and which require action to eliminate or reduce
the risk."

8


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EN 13621:2004+A1:2010 (E)

4.2

Mechanical hazards

4.2.1

Access to the danger zones

Mechanical hazards arise from the risk of contact with the rotating parts.

Key
1 Zone 1
2 Zone 2
3 Zone 3

4 Zone 4
5 Zone 5
6 Zone 6


Figure 2.a — Dryer with a cover

Figure 2.b — Dryer without a cover
Figure 2 — Hazard zones

In the example in Figure 2, the hazard zones are:


Zone 1: basket
Hazard of impact or abrasion to fingers;



Zone 2: space between the tank and the rotating basket
Hazard of drawing in fingers;



Zone 3: basket drive device
Hazard of impact or entanglement of fingers;



Zone 4: rotation generating device
Hazard of crushing or drawing in fingers;
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BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)




Zone 5: access to the rotation zone of the basket through the water evacuation device
Hazard of impact and abrasion to fingers;



Zone 6: space between the lid of the tank and the cover in case of falling down of the cover
Hazard of crushing fingers.

4.2.2

Loss of stability

Hazard of crushing and impact.
4.2.3

Incorrect assembly and fitting

Hazard of impact for fingers and hands.
4.2.4

Inadequacy of mechanical strength

Hazard of breakage and ejection of parts especially when processing other vegetables than salad.

4.3

Electrical hazards


Hazard of shock by direct or indirect contact with live parts.

4.4

Hazards generated by neglecting hygiene in machine design

Inability to clean food contact and splash areas effectively and thoroughly.
Contamination of the food by undesirable materials including residues of food, microbiological hazards as well as
residues of cleaning and disinfecting fluids.
NOTE

4.5

See also EN 1672-2 which deals with hygiene risks to the operator.

Hazards generated by neglecting ergonomic principles in machine design

Lack of applying ergonomic principles can be anything that causes wrong operation of controls, physical damage
due to over-reaching, heavy loads, awkward posture, etc.

5
5.1

Safety and hygiene requirements and/or measures
General

Salad dryers shall comply with the safety requirements and/or protective measures of this Clause. In addition, they
shall be designed according to the principles of EN ISO 12100 for hazards relevant but not significant, which are
not dealt with by this document (e.g. sharp edges).

!NOTE For hazards which are to be reduced by the application of another standard such as EN 1672-2, EN 60204-1 and
EN ISO 13857, the manufacturer should carry out a risk assessment to establish the requirements of that standard which are to
be applied. This specific risk assessment is part of general risk assessment of the salad dryer."

!When fixed guards, or parts of the machine acting as such, are not permanently fixed e.g. by welding, their
fixing systems shall remain attached to the guards or to the machine when the guards are removed."
Where the means of reducing the risk is by the physical arrangement or positioning of the installed dryer the
manufacturer shall include in the information for use 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.
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BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)

Where the means of reducing the risk is by a safe system of working the dryer, the manufacturer shall include in
the information for use details of the system and of the elements of training required by the operating personnel.

5.2

Mechanical hazards

5.2.1

General

For the machines covered by this document, the safety shall be in the first place intrinsically ensured by the design,
the shape and the choice of materials, according to the requirements given below.
5.2.2


Access to the danger zones

5.2.2.1
5.2.2.1.1

Machines of class 1
Zone 1: basket

The inside and outside of the basket shall not present any sharp parts, roughness or raised parts likely to create a
hazard of impact or abrasion.
If the impact or abrasion hazards is not withdrawn by design, the rotating basket shall disconnect itself immediately,
as soon as its rotation becomes blocked, e.g. by using a frictional drive.
5.2.2.1.2

Zone 2: space between the tank and the basket

In any case the space between the tank and the basket shall be less than 8 mm or greater than 20 mm.
5.2.2.1.3

Zone 3: basket drive device

By design, the drive device shall not present any sharp parts, nor create impact or entanglement.
5.2.2.1.4

Zone 4: rotation generating device

Access to the danger zone shall be prevented by fixed guards complying with EN 953.
5.2.2.1.5

Zone 5: access to the rotation zone of the basket through the water evacuation device


The spinning water evacuation device shall be designed in such a manner that the introduction of a finger or of the
hand into the pipe opening does not cause any jamming of the operator's fingers between the basket and the
bottom of the tank (Table 4 of !EN ISO 13857:2008" shall apply). In addition, this device shall be unable to be
dismantled without the use of tools.
5.2.2.1.6

Zone 6: space between the tank and the cover

The cover shall be stable in full opening position (e.g. at least 10° over the limit of stability).
5.2.2.2

Machines of class 2

The requirements of 5.2.2.1.1 to 5.2.2.1.6 apply with the following additional requirements for zones 1, 2 and 3.
These machines shall have a stopping time less than 4 s or be equipped with an interlocked cover with guard
locking.
!All the interlocking devices associated with guards shall comply with EN 1088.
The parts of the control system related to the interlocking shall meet at least category 1 of 6.2.2 of
EN 954-1:1996 or present at least a performance level c defined in accordance with
EN ISO 13849-1:2008."
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BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)

These guards shall comply with EN 953 and Table 4 of !EN ISO 13857:2008".
Instructions about the use and the maintenance of these devices shall be provided in the instruction handbook.
5.2.3


Stability

Salad dryers shall be designed and manufactured to not slip or topple over during intended operating conditions
and shall satisfy to the tests specified in Table 1 of Clause 6.
If the machine cannot comply with the tests of Table 1, Clause 6, it shall be fixed and the instruction handbook shall
indicate the value of forces and sizes of the fixing points.
A machine fitted with three castors shall have at least one castor fitted with a locking device to prevent at minimum
rolling.
A machines fitted with four castors shall have at least two castors (or sets of castors) fitted with a locking device.
5.2.4

Assembly and fitting

The design of the basket and drive device shall ensure that the basket cannot be assembled in a wrong way.
In addition, conditions of proper assembly and fitting shall be provided in the instruction handbook.
5.2.5

Inadequacy of mechanical strength

The strength of the basket and its driving device shall be sufficient to avoid breakage in all intended operating
conditions (e.g. load, speed).

5.3
5.3.1

Electrical hazards
General

!Controls shall have a minimum degree of protection of IP55 as defined in EN 60529:1991 and the whole

machine shall have a minimum degree of protection of IP34.
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.
The electrical equipment shall comply with EN 60204-1:2006, with the following precision."
5.3.2

Safety requirements related to electromagnetic phenomena !deleted text"
"

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 intended by the
manufacturer. The manufacturer of the machines shall design, install and wire the requirement and subassemblies 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 !deleted text"

Devices for detection and interruption of overcurrent shall be applied to each live conductor in compliance with
!7.2.3 of EN 60204-1:2006". In case of single phase machines, no such device is required for the earthed
neutral conductor.
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EN 13621:2004+A1:2010 (E)


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 salad dryers. 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 1672-2:2005" and the requirements given below. It
shall also be designed in accordance with Annex B.
Hygiene zones, as defined in !3.4 of EN 1672-2:2005", are shown in Figure 3.
5.4.2

Food area

The following parts are considered to be in the food area as defined in !EN 1672-2:2005".


the spinning basket;



inner side of the cover;



all the cover if this is a grid.

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BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)

Key


Food area

Splash area

Non food area

Figure 3.a — Dryer with a cover

Figure 3.b — Dryer without a cover

Figure 3 — Definition of areas

5.4.3

Splash area

The following parts are considered to be in the splash areas as defined in !EN 1672-2:2005":


inside of the tank;



outside of the tank if there is no cover.

5.4.4

Non food area

The remainder of the appliance.

5.4.5

Surface finish

The maximum roughness values shall comply with the requirements of !EN 1672-2:2005" and Annex B.
5.4.6

Cleanability

All food and splash areas shall be easily cleanable and capable of disinfection.
In food and splash areas, fasteners such as screws, bolts, rivets etc shall be avoided unless technically necessary.
These should be chosen from those of Figure B.17 of Annex B.
NOTE
Because of the problem of contamination the machines are not intended to be cleaned with high pressure waterjet
(see 7.2.d).

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EN 13621:2004+A1:2010 (E)

5.5

Ergonomics

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


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 of Clause 5 contain self-evident criteria of acceptance.
Verification of the requirements (see Table 1) 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.

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BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)

Table 1 – Verification methods
Clause

Method of verification

5.2.2

By visual inspection and measurement.

5.2.2.1.6

By measurement.

5.2.3


The machine is inclined at an angle of 10° in relation to the horizontal plane.
However, if, when the machine is inclined at an angle of 10°, a part of the machine
comes into contact with the support surface, the machine shall be placed on an
accessory support, which will be inclined at an angle of 10° in the most
unfavourable direction. The machine shall return to the horizontal plane.
If the machine is to be fixed to the ground, the manufacturer shall indicate in his
instruction manual the value of the fixation force.

5.2.4

By visual inspection.

5.2.5

By calculation.

!5.3

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

5.4

In accordance with Annex B.

5.5

By measurement of distances.
By visual inspection.
By functional test.


7
7.1

Information for use
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 and advice of 6.5 of EN ISO 12100-2:2003. It shall include at
least the following information:


the indications to the user for the conditions of installation, use and maintenance (generally defined by the
supplier of the electric/electronic equipment) to be met in order to achieve the electromagnetic compatibility.

a)

information relating to transport, handling and storage:


of the machine;

!


b)

16

the limits that shall be respected and the measures to be taken for ensuring stability during use,
transportation, assembly, dismantling when out of service, testing or foreseeable breakdowns;"

information relating to commissioning in particular:


assembly and mounting conditions;



size and position of drainage connection;



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


BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)

c)

information to the equipment itself, in particular:



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



dimensions of the basket;



nominal load;



comprehensive range of applications for which the machines are intended and prohibited usage if any;



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

 !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 of this European Standard:


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."

d)



data about electrical equipment and electrical wiring diagram;



values for the fixation forces when the machine is to be fixed in the ground.

information relating to the normal operating conditions:


description of controls;



modes and means for stopping the machine;




prohibited applications;



elements of training to be provided to the operator for the safe operation of the machine;



recommended use including the types of foods which can be fed, and safeguards and any limitations on
the use;



arrangements which the user has to take to ensure the machine is stable as required in 5.2.3;



any limitation on hosing the machine;



any ergonomic considerations which the user should take (see 5.5);



proper removal and fitting of the basket (with regard to safety considerations);




method of cleaning food areas, splash areas and non-food areas and the recommended cleaning
products;

 !if need be: the description of the adjustment and maintenance operations to be carried out by the user
and the preventive maintenance measures to be observed;
17


BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)



if need be: instructions designed to enable adjustment and maintenance to be carried out safely, including
the protective measures to be taken during these operations."

e)

information for maintenance



The maintenance manual shall include:


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

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


!the specification of the spare parts to be used, when these affect health or safety;"



electrical diagrams;

 the manufacturer shall draw the attention of the operator during maintenance on the hazard of residual
voltage especially on capacitors.
!
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."

7.3

Marking

!The machinery shall be marked permanently and legibly with at least the following:"


!the business name and full address of the manufacturer and, where applicable, his authorised
representative;"



!designation of the machinery;"




mandatory marking1) ;



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



weight of the machine;



designation of series or type;



serial number, if any;



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

1)

18

For the EU and members of the EEA, the CE marking should be used.



BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)

Annex A
(normative)
Noise test code for salad dryers (Grade 2)

A.1 Emission sound pressure level determination
EN ISO 11201 shall be used for the determination of the emission sound pressure level.
The measurement shall be made at a microphone position located 1 m away from the outer surface of the salad
dryer at a height 1,55 m ± 0,075 m above the ground plane. The microphone shall be orientated towards the centre
of the machine and located on the side where the highest value of the A-weighted sound pressure level is
observed.

A.2 Installation and mounting conditions
The test environment shall comply with Clause 6 of !EN ISO 11201:2009". It shall be qualified according to the
Annex A of !EN ISO 3744:2009".
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.

Salad dryers usually placed on a Table shall be, for the purpose of measurement, installed on the test table
according to !Annex B of EN ISO 11201:2009", whereas salad dryers designed to be standing on a floor shall
be installed on a sound reflecting floor.

A.3 Operating conditions
The test shall be carried out at the maximal speed, basket unloaded.

A.4 Measurement

The time averaged emission sound pressure level LpA shall be measured at the specified position.


tests shall be repeated to obtain the required grade of accuracy, and until three consecutive results give values
which differ of not more than 2 dB(A);



LpA is the arithmetical average of the three values.

The measuring time shall be at least 15 s, the stopping time being excluded.

A.5 Measurement uncertainties
A standard deviation with a 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.

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BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)

A.6 Information to be recorded
Information shall comply with Clause 12 of !EN ISO 11201:2009".
Any deviations from this noise test code and from EN ISO 11201 shall be recorded together with the technical
justification for such deviations.

A.7 Information to be reported
The information to be reported shall comply with Clause 13 of !EN ISO 11201:2009"..
The information shall include at least:



reference to EN ISO 11201;



description of the mounting and operating conditions used;



location of the microphone position for the determination of the emission sound pressure level at the work
station;



the noise emission value obtained;



declaration that all requirements of the noise test code have been fulfilled or if this is not the case, any
unfulfilled requirements shall be identified;

The 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 value shall be made as a dual-number noise emission declaration according
to EN ISO 4871.
It shall declare the noise emission value LpA and the uncertainty KpA.
The uncertainty KpA is expected to have a value of 2,5 dB.
The noise declaration shall state that the noise emission value has been obtained according to this test code and to

the basic standard EN ISO 11201. If this statement is not true, the noise declaration shall indicate clearly what the
deviations are from this noise test code and/or from the 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 the noise emission values.

20


BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)

Annex B
(normative)
Additional principles of design to ensure the cleanability of salad dryers

B.1 Terms and definitions
For the purpose of this Annex, the terms and definitions given in !EN 1672-2:2005" and the following apply.
B.1.1
easily cleanable
designed and constructed to permit the elimination of soil by a simple cleaning method (e.g. manual cleaning)
B.1.2
fitted surfaces
surfaces separated by a distance less than or equal to 0,5 mm
B.1.3
joined surfaces
surfaces between which no particle of product becomes trapped in small crevices, thus becoming difficult to
dislodge and so introduce a contamination hazard

B.2 Materials of construction
!


B.2.1 Type of materials
Materials of construction for food area shall comply with 5.2 of EN 1672-2:2005.
Some materials (e.g. plastics) shall be the subject to overall or specific migration tests.
NOTE
European Directives give the list of materials in contact with food and foods intended for human consumption (see
also CEN/TR 15623). Materials not mentioned in the European Directives are accepted as long as food compatibility is proven.

B.2.2 Surface conditions
The surface finish of materials used on surfaces shall permit easy cleaning under satisfactory conditions. The
roughness values Rz according to EN ISO 4287:1998 shall comply with the values given in Table B.1.

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BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)

Table B.1
Values in micrometres
Roughness (Rz)
Vegetable origin products

Technique of construction

Food area

Splash area

Drawn - rolled - spun


≤ 22

≤ 34

Molded - cast

≤ 34

≤ 40

Machined

≤ 22

≤ 40

- metal

≤ 27

≤ 40

- plastics

≤ 27

≤ 40

Injected


Netting - nets - Perforated metal

according to manufacturer cleaning specifications

Coating
- paint

≤ 22

≤ 34

- plastics

≤ 22

≤ 34

- glass

≤ 22

≤ 34

- metal

≤ 22

≤ 34


"

B.3 Design
B.3.1 Connections of internal surfaces
B.3.1.1

General

Connections shall have the same roughness as the connected surfaces.
These shall be designed to avoid any dead space, see EN 1672-2.
B.3.1.2

Connections of internal surfaces for food area

Two surfaces shall be connected according to:


22

rounded edge having a radius greater than a curve of minimum radius r1 of 3 mm obtained by:


machining (cutting into material mass);



bending the sheet metal (bending and forming);




design (in moulds, shells of foundry, injection and blasting ...) (see Figure B.1).


BS EN 13621:2004+A1:2010
EN 13621:2004+A1:2010 (E)

Key
1

Food area
Figure B.1

 or by welded assembly with grinding and polishing (see Figure B.2).

Key
1

Food area
Figure B.2



for an internal angle α1 greater than or equal to 135° there are no special requirements for the radius (see
Figure B.3)

23