SIST EN 61010-2-020:2007
(Main)Safety requirements for electrical equipment for measurement, control, and laboratory use -- Part 2-020: Particular requirements for laboratory centrifuges
Safety requirements for electrical equipment for measurement, control, and laboratory use -- Part 2-020: Particular requirements for laboratory centrifuges
This Part 2 is applicable to electrically powered LABORATORY CENTRIFUGES. 1.1.2 Equipment excluded from scope Addition: Add the following new item: aa) IEC 60034 (Rotating electrical machinery); 1.2 Object 1.2.1 Aspects included in scope Addition: Add the following five new items: aa) contact with moving parts (see 7.2); bb) LABORATORY CENTRIFUGE movement during any DISRUPTION (see 7.3.101); cc) high energy chemical reaction after ROTOR DISRUPTION (see 7.6.101.2 l)); dd) ineffectiveness of BIOSEALS (see 13.101) 1.2.2 Aspects excluded from scope Addition: Add the following two new items: aa) additional precautions which may need to be observed when centrifuging materials which are flammable or explosive (see 5.4.101); bb) additional precautions which may need to be observed when centrifuging materials that could react chemically with sufficient vigour to cause a HAZARD (see 5.4.101).
Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte -- Teil 2-020: Besondere Anforderungen an Laborzentrifugen
Règles de sécurité pour appareils électriques de mesurage, de régulation et de laboratoire -- Partie 2-020: Exigences particulières pour centrifugeuses de laboratoire
La présente partie 2 est applicable aux CENTRIFUGEUSES DE LABORATOIRE alimentées en énergie électrique.
Varnostne zahteve za električno opremo za meritve, nadzor in laboratorijsko uporabo - 2-020. del: Posebne zahteve za laboratorijske centrifuge (IEC 61010-2-020:2006)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 61010-2-020:2007
01-februar-2007
1DGRPHãþD
SIST EN 61010-2-020:1999
SIST EN 61010-2-020:1999/A1:1999
9DUQRVWQH]DKWHYH]DHOHNWULþQRRSUHPR]DPHULWYHQDG]RULQODERUDWRULMVNR
XSRUDERGHO3RVHEQH]DKWHYH]DODERUDWRULMVNHFHQWULIXJH,(&
Safety requirements for electrical equipment for measurement, control, and laboratory
use -- Part 2-020: Particular requirements for laboratory centrifuges
Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte -- Teil
2-020: Besondere Anforderungen an Laborzentrifugen
Règles de sécurité pour appareils électriques de mesurage, de régulation et de
laboratoire -- Partie 2-020: Exigences particulières pour centrifugeuses de laboratoire
Ta slovenski standard je istoveten z: EN 61010-2-020:2006
ICS:
19.080 (OHNWULþQRLQHOHNWURQVNR Electrical and electronic
SUHVNXãDQMH testing
71.040.10 Kemijski laboratoriji. Chemical laboratories.
Laboratorijska oprema Laboratory equipment
SIST EN 61010-2-020:2007 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 61010-2-020:2007
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SIST EN 61010-2-020:2007
EUROPEAN STANDARD
EN 61010-2-020
NORME EUROPÉENNE
August 2006
EUROPÄISCHE NORM
ICS 19.080; 71.040.10 Supersedes EN 61010-2-020:1994 + A1:1996
English version
Safety requirements for electrical equipment
for measurement, control, and laboratory use
Part 2-020: Particular requirements
for laboratory centrifuges
(IEC 61010-2-020:2006)
Règles de sécurité pour appareils Sicherheitsbestimmungen für
électriques de mesurage, de régulation elektrische Mess-, Steuer-, Regel- und
et de laboratoire Laborgeräte
Partie 2-020: Exigences particulières Teil 2-020: Besondere Anforderungen
pour centrifugeuses de laboratoire an Laborzentrifugen
(CEI 61010-2-020:2006) (IEC 61010-2-020:2006)
This European Standard was approved by CENELEC on 2006-07-01. CENELEC 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 Central Secretariat or to any CENELEC 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 CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61010-2-020:2006 E
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SIST EN 61010-2-020:2007
EN 61010-2-020:2006 - 2 -
Foreword
The text of document 66/367/FDIS, future edition 2 of IEC 61010-2-020, prepared by IEC TC 66, Safety
of measuring, control, and laboratory equipment, was submitted to the IEC-CENELEC parallel vote and
was approved by CENELEC as EN 61010-2-020 on 2006-07-01.
This European Standard supersedes EN 61010-2-020:1994 + A1:1996.
It has been updated to provide more specific wording for some of the instructions or subclauses, and the
language has been updated to reflect current terminology used in the industry today.
This Part 2-020 is to be used in conjunction with EN 61010-1:2001, Safety requirements for electrical
equipment for measurement, control and laboratory use – Part 1: General requirements. Consideration
may be given to future editions of, or amendments to, EN 61010-1.
This Part 2-020 supplements or modifies the corresponding clauses of EN 61010-1:2001 so as to convert
it into the European Standard "Safety requirements for laboratory centrifuges".
Where a particular clause or subclause of Part 1 is not mentioned in this Part 2-020, that clause or
subclause applies as far as is reasonable. Where this part states "addition", "modification" or
"replacement", the relevant text of Part 1 is to be adapted accordingly.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2007-04-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-07-01
In this standard:
1) the following print types are used:
– requirements: in roman type;
– NOTES: in small roman type;
– conformity and tests: italic type;
– terms used throughout this standard which have been defined in Clause 3: SMALL ROMAN
CAPITALS;
2) subclauses, figures, tables and notes which are additional to those in Part 1 are numbered starting
from 101; additional annexes are lettered AA, BB, etc.
Annex ZA has been added by CENELEC.
____________
Endorsement notice
The text of the International Standard IEC 61010-2-020:2006 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 60034 NOTE Harmonized as EN 60034 (Series) (not modified).
__________
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- 3 - EN 61010-2-020:2006
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
Addition to annex ZA of EN 61010-1:
Publication Year Title EN/HD Year
ISO 3864 Series Graphical symbols - Safety colours and safety - -
signs
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SIST EN 61010-2-020:2007
NORME CEI
INTERNATIONALE
IEC
61010-2-020
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2006-05
PUBLICATION GROUPÉE DE SÉCURITÉ
GROUP SAFETY PUBLICATION
Règles de sécurité pour appareils électriques
de mesurage, de régulation et de laboratoire –
Partie 2-020:
Exigences particulières pour centrifugeuses
de laboratoire
Safety requirements for electrical equipment
for measurement, control, and laboratory use –
Part 2-020:
Particular requirements for laboratory centrifuges
IEC 2006 Droits de reproduction réservés Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photo-copie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
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Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
U
Commission Electrotechnique Internationale
PRICE CODE
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue
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61010-2-020 IEC:2006 – 3 –
CONTENTS
FOREWORD.5
1 Scope and object.9
2 Normative references .11
3 Terms and definitions .11
4 Tests .15
5 Marking and documentation.15
6 Protection against electric shock .21
7 Protection against mechanical HAZARDS.21
8 Mechanical resistance to shock and impact .35
9 Protection against the spread of fire .35
10 Equipment temperature limits and resistance to heat.35
11 Protection against HAZARDS from fluids .35
12 Protection against radiation, including laser sources, and against sonic and
ultrasonic pressure .37
13 Protection against liberated gases, explosion and implosion.37
14 Components .39
15 Protection by interlocks .39
16 Test and measurement equipment.39
Annexes .41
Annex H Index of defined terms .41
Annex AA (normative) Dynamic microbiological test method for BIOSEALS .43
Annex BB (informative) General guidance and rationale for particular subclauses .51
Bibliography.59
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT FOR
MEASUREMENT, CONTROL, AND LABORATORY USE –
Part 2-020: Particular requirements for laboratory centrifuges
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61010-2-020 has been prepared by IEC technical committee 66,
Safety of measuring, control and laboratory equipment.
This second edition cancels and replaces the first edition published in 1992 and its
Amendment 1 (1996). It constitutes a technical revision. This second edition has been updated
to provide more specific wording for some of the instructions or subclauses, and the language
has been updated to reflect current terminology used in the Industry today.
It has the status of a group safety publication in accordance with IEC Guide 104.
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The text of this standard is based on the following documents:
FDIS Report on voting
66/367/FDIS 66/371/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This Part 2-020 is intended to be used in conjunction with IEC 61010-1. It was established on
the basis of the second edition (2001). Consideration may be given to future editions of, or
amendments to, IEC 61010-1.
This Part 2-020 supplements or modifies the corresponding clauses in IEC 61010-1 so as to
convert that publication into the IEC standard: Safety requirements for laboratory centrifuges.
Where a particular subclause of Part 1 is not mentioned in this Part 2, that subclause applies
as far as is reasonable. Where this part states "addition", "modification" or "replacement", the
relevant requirement, test specification or note in Part 1 should be adapted accordingly.
In this standard:
1) the following print types are used:
– requirements: in roman type;
– NOTES: in small roman type;
– conformity and tests: in italic type;
– terms used throughout this standard which have been defined in Clause 3: SMALL ROMAN
CAPITALS.
2) subclauses, tables or figures which are additional to those in Part 1 are numbered starting
from 101; additional annexes are lettered AA, BB, etc.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
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SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT FOR
MEASUREMENT, CONTROL, AND LABORATORY USE –
Part 2-020: Particular requirements for laboratory centrifuges
1 Scope and object
This clause of Part 1 is applicable except as follows:
1.1 Scope
Replacement:
This Part 2 is applicable to electrically powered LABORATORY CENTRIFUGES.
NOTE If all or part of the equipment falls within the scope of one or more other Part 2 standards of IEC 61010 as
well as within the scope of this standard, it will also need to meet the requirements of those other Part 2 standards.
1.1.2 Equipment excluded from scope
Addition:
Add the following new item:
aa) IEC 60034 (Rotating electrical machinery);
1.2 Object
1.2.1 Aspects included in scope
Addition:
Add the following five new items:
aa) contact with moving parts (see 7.2);
bb) LABORATORY CENTRIFUGE movement during any DISRUPTION (see 7.3.101);
cc) high energy chemical reaction after ROTOR DISRUPTION (see 7.6.101.2 l));
dd) ineffectiveness of BIOSEALS (see 13.101)
1.2.2 Aspects excluded from scope
Addition:
Add the following two new items:
aa) additional precautions which may need to be observed when centrifuging materials
which are flammable or explosive (see 5.4.101);
bb) additional precautions which may need to be observed when centrifuging materials that
could react chemically with sufficient vigour to cause a HAZARD (see 5.4.101).
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1.4 Environmental conditions
1.4.1 Normal environmental conditions
Modification:
Modify item c) as follows:
c) temperature 2 °C to 40 °C;
1.4.2 Extended environmental conditions
Modification:
Modify item c) as follows:
c) ambient temperatures below 2 °C or above 40 °C;
2 Normative references
This clause of Part 1 is applicable except as follows:
Addition:
ISO 3864 (all parts), Graphical symbols – Safety colours and safety signs.
3 Terms and definitions
This clause of Part 1 is applicable except as follows:
3.1 Equipment and states of equipment
Additions:
Add the following three new definitions:
3.1.101
LABORATORY CENTRIFUGE:
apparatus intended for laboratory use that applies a centrifuging effect to sample materials
3.1.102
CENTRIFUGE-ROTOR COMBINATION
LABORATORY CENTRIFUGE and ROTOR ASSEMBLY that are intended to operate together and which
have to be evaluated together
3.1.103
DISRUPTION
event in which the ROTOR ASSEMBLY, or part of it, fails or becomes detached during rotation
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3.2 Parts and accessories
Additions:
Add the following eight new definitions:
3.2.101
CHAMBER
enclosed space within a LABORATORY CENTRIFUGE in which the ROTOR ASSEMBLY rotates
3.2.102
ROTOR
primary component of a LABORATORY CENTRIFUGE which holds the material to be subjected to
centrifugal force and which is rotated by the DRIVE SYSTEM
3.2.103
BUCKET
sub-assembly of a ROTOR designed to support one or more containers
3.2.104
PROTECTIVE CASING
casing which completely surrounds the ROTOR ASSEMBLY and which includes the LID and its
securing devices
3.2.105
LID
access cover of the CHAMBER
3.2.106
ROTOR ASSEMBLY
ROTOR carrying a combination of ROTOR accessories specified by the manufacturer
NOTE In the context of a ROTOR ASSEMBLY, ROTOR accessories include all components used with or in the
CENTRIFUGE ROTOR for the purpose of holding samples, including adaptors, tubes and bottles.
3.2.107
DRIVE SYSTEM
all components of the CENTRIFUGE associated with the provision of torque to, or the rotational
support of, the ROTOR ASSEMBLY
3.2.108
BIOSEAL
device or mechanism additional to, or integral with, a ROTOR or BUCKET and a closure
assembly, and which is designed to prevent the escape of contents, for example micro-
biological material, during centrifuging.
3.5 Safety terms
Additions:
Add the following two new definitions:
3.5.101
CLEARANCE ENVELOPE
space around a LABORATORY CENTRIFUGE which is needed for safety
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3.5.102
MCA (MAXIMUM CREDIBLE ACCIDENT)
a planned event chosen to represent worst-case conditions for a test that will evaluate the
inherent mechanical safety of a CENTRIFUGE-ROTOR COMBINATION (see 7.6 and Annex BB).
4 Tests
This clause of Part 1 is applicable, except as follows.
4.3.1 Environmental conditions
Addition:
Add the following new note:
NOTE Consideration should be given to operating refrigerated centrifuges at the maximum humidity specified in
1.4.1 d) and 1.4.2 d) because of condensation concerns (see 11.101).
5 Marking and documentation
This clause of Part 1 is applicable except as follows.
5.1.2 Identification
Modification:
Modify item b) as follows:
b) serial number or other means to identify the production batch of the equipment.
Addition:
Add the following new subclause:
5.1.101 ROTORS and accessories
All OPERATOR-replaceable ROTORS and ROTOR ASSEMBLIES, including ROTOR ACCESSORIES, shall
be marked with the manufacturer's or supplier's name or registered trade mark, and
identification code.
If components are too small, or are not suitable for such marking, the required information
shall be marked on the original packaging, as well as being stated in the documentation.
NOTE 1 Packaging can be the outer box, an insert, etc.
NOTE 2 Each ROTOR should be marked with a serial number or with other means to identify uniquely the
production batch.
NOTE 3 Where the manufacturer specifies that an individual part, for example a BUCKET, is to be fitted only to a
specific ROTOR or in specific ROTOR positions for balance or some other reason, each BUCKET and ROTOR position
should be identified by marking with corresponding numbers or letters;
NOTE 4 ROTOR accessories designed to be used together as a set, for example in terms of weight, should be
marked with an identification of that same set.
Conformity is checked by inspection.
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5.4.2 Equipment ratings
Addition:
Add the following three new items:
aa) a list of all ROTORS and ROTOR accessories specified for use with a LABORATORY
CENTRIFUGE, together with their RATED rotational frequencies;
bb) any restrictions by the manufacturer warning against the use of particular materials to
be centrifuged;
cc) density and volume limits for ROTOR ASSEMBLY loading and, if applicable, derating
instructions.
5.4.3 Equipment installation
Addition:
Add, after item a), the following five sub-items:
i) floor or bench area required for the CLEARANCE ENVELOPE for the intended use (see
7.3.101);
NOTE Subclause 7.3.101 limits the permitted movement of a LABORATORY CENTRIFUGE to 300 mm,
in the event of a DISRUPTION. The manufacturer's instructions should therefore include a requirement for
the user to mark this boundary around the CENTRIFUGE, or that laboratory management procedures should
require that no person or any hazardous materials be within such a boundary while the LABORATORY
CENTRIFUGEis operating.
ii) total weight of the CENTRIFUGE;
iii) instructions for site preparation;
iv) methods for levelling of the CENTRIFUGE;
v) means for securing to the mounting surface.
5.4.4 Equipment operation
Addition:
Add the following five new items:
aa) loading and balancing procedures;
bb) ROTOR changing procedure;
cc) any specific requirement for an OPERATOR to be present at stated phases of the
centrifuging procedure;
dd) necessary safeguards for personnel. Examples of instructions include:
– not to lean on a LABORATORY CENTRIFUGE;
– not to stay within the CLEARANCE ENVELOPE longer than necessary for operational
reasons;
– not to deposit any potentially hazardous materials within the CLEARANCE ENVELOPE;
– methods for safe operation during open LID procedures (see 7.2.102.2);
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ee) instructions for use of BIOSEALS and other biocontainment components, including the
proper closure techniques. These instructions shall make clear to the OPERATOR that
BIOSEALS and related components are intended to be part of biocontainment systems
such as are specified in international and national biosafety guidelines, and cannot be
relied on as the only means of safeguarding workers and the environment when
handling pathogenic micro-organisms.
5.4.5 Equipment maintenance
Addition:
Renumber the note to the first paragraph as Note 1 and add the following new second
paragraph and Note 2:
Where applicable, the instructions shall specify:
aa) inspection of any means of fixing the equipment to the mounting surface and the
condition of the mounting surface itself;
bb) safeguards for the OPERATOR during cleaning;
cc) inspection of the PROTECTIVE CASING;
dd) inspection of the ROTOR ASSEMBLY, and safety considerations;
ee) checking the continuity of the PROTECTIVE BONDING;
ff) frequency of inspection and the method of replacement of BIOSEALS and other
biocontainment components.
NOTE 2 These instructions should make clear to the OPERATOR that regular maintenance of BIOSEALS and other
biocontainment components as specified in the instructions is especially important to ensure safety in day-to-day
use.
Addition:
Add the following three new subclauses:
5.4.101 Hazardous substances
The instructions for use shall state the precautions to be observed when the materials to be
used with a LABORATORY CENTRIFUGE are known to be toxic, radioactive, or contaminated with
pathogenic micro-organisms.
NOTE 1 This information is relevant to the safety of both OPERATORS and service personnel.
The use within the LABORATORY CENTRIFUGE of the following materials shall be prohibited in
the instructions for use:
a) flammable or explosive materials;
b) materials which could react chemically with sufficient vigour to cause a HAZARD.
NOTE 2 CENTRIFUGES may be specifically designed to be safe when handling such materials, but such
centrifuges are not within the scope of this standard.
Conformity is checked by inspection.
5.4.102 Cleaning and decontamination
Documentation shall include:
a) a statement that, if hazardous material is spilt on or inside the equipment, the user has
responsibility for carrying out appropriate decontamination;
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b) manufacturer's recommendations for cleaning and, where necessary, decontamination,
together with the recognized generic names of recommended materials for cleaning and
decontaminating:
c) the following statement:
"Before using any cleaning or decontamination methods except those recommended by
the manufacturer, users should check with the manufacturer that the proposed method will
not damage the equipment”
Conformity is checked by inspection.
5.4.103 Effects of chemicals and environmental influences
To ensure continued safe use of a LABORATORY CENTRIFUGE the documentation shall identify
damage which could result from, for example:
a) the effect of chemicals;
b) environmental influences, including natural ultra-violet radiation likely to be encountered;
c) corrosion, and other weakening of construction materials that are part of the PROTECTIVE
CASING or other safety components.
NOTE Assessment may be based on existing data, for example that supplied by a materials supplier. The
manufacturer may have to arrange for additional tests with regard to the intended use of the LABORATORY
CENTRIFUGE.
Conformity is checked by inspection of the documentation and the relevant data.
6 Protection against electric shock
This clause of Part 1 is applicable.
7 Protection against mechanical HAZARDS
This clause of Part 1 is applicable except as follows.
7.1 General
Addition:
Renumber the existing note as Note 1 and add the following new Note 2:
NOTE 2 A DISRUPTION, resulting in damage to a part of the PROTECTIVE CASING, for example a LID-locking
mechanism, is considered to be a SINGLE FAULT CONDITION
7.2 Moving parts
Addition:
Add the following four new subclauses.
7.2.101 LID
7.2.101.1 Requirements
The LID shall be locked closed when the ROTOR drive is energized, and shall remain locked
until the circumferential velocity of the ROTOR ASSEMBLY is not more than 2 m/s (see
Annex BB).
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In the event of a power failure, the LID-locking mechanism shall not release, and subsequent
release shall require the use of a TOOL.
The LID shall be held closed with sufficient strength to
...
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