EN IEC 61010-2-051:2021

Safety requirements for electrical equipment for measurement, control and laboratory use - Part 2-051: Particular requirements for laboratory equipment for mixing and stirring

NEW!IEC 61010-2-051:2018 is available as IEC 61010-2-051:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61010-2-051:2018 is applicable to electrically operated laboratory equipment and its accessories for mechanical mixing and stirring, where mechanical energy influences the shape or size or homogeneity of materials and their accessories. Such devices can contain heating elements. It has the status of a group safety publication in accordance with IEC Guide 104. This fourth edition cancels and replaces the third edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - adaptation of changes introduced by Amendment 1 of IEC 61010-1; - added tolerance for stability of AC voltage test equipment to Clause 6; - added required assessment for equipment intended to be used with flammable, hazardous, or toxic fluids to Clause 17. This Part 2-051 is intended to be used in conjunction with IEC 61010-1. It was established on the basis of the third edition (2010) and its Amendment 1 (2016).

Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte - Teil 2-051: Besondere Anforderungen an Laborgeräte zum Mischen und Rühren

Exigences de sécurité pour appareils électriques de mesurage, de régulation et de laboratoire - Partie 2-051 : Exigences particulières pour appareils de laboratoire utilisés pour mélanger et agiter

NEW!IEC 61010-2-051:2018 est disponible sous forme de IEC 61010-2-051:2018 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L’IEC 61010-2-051:2018 est applicable aux appareils de laboratoire électriques et à leurs accessoires, destinés à mélanger et à agiter, et qui, par l’énergie mécanique dispensée, modifient la forme, la taille ou l’homogénéité des matériaux et de leurs accessoires. De tels appareils peuvent contenir des éléments de chauffage. Elle a le statut d'une publication groupée de sécurité conformément au Guide IEC 104. Cette quatrième édition annule et remplace la troisième édition parue en 2015. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - adaptation des modifications introduites par l’Amendement 1 de l’IEC 61010-1; - ajout à l’Article 6 de la tolérance pour la stabilité du matériel d’essai en tension alternative; - ajout à l’Article 17 de l’appréciation du risque exigée pour le matériel destiné à être utilisé avec des fluides inflammables, dangereux ou toxiques. Cette partie 2-051 est destinée à être utilisée conjointement avec l'IEC 61010-1. Elle a été établie sur la base de la troisième édition (2010) et de son Amendement 1 (2016).

Varnostne zahteve za električno opremo za meritve, nadzor in laboratorijsko uporabo - 2-051. del: Posebne zahteve za laboratorijsko opremo za mešanje in premešavanje (IEC 61010-2-051:2018)

General Information

• Status: Published
• Publication Date: 09-Sep-2021
• ICS: 19.080 - Electrical and electronic testing
• ICS: 71.040.20 - Laboratory ware and related apparatus
• Technical Committee: CLC/TC 66X - Safety of measuring, control, and laboratory equipment
• Drafting Committee: IEC/TC 66 - IEC_TC_66
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 10-Sep-2021
• Completion Date: 10-Sep-2021
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Directive: 2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Ref Project: SIST EN IEC 61010-2-051:2021 - Safety requirements for electrical equipment for measurement, control and laboratory use - Part 2-051: Particular requirements for laboratory equipment for mixing and stirring (IEC 61010-2-051:2018)

Relations

• Replaces: EN 61010-2-051:2015 - Safety requirements for electrical equipment for measurement, control and laboratory use - Part 2-051: Particular requirements for laboratory equipment for mixing and stirring
• Effective Date: 14-Sep-2021
• Amended By: EN IEC 61010-2-051:2021/A11:2021 - Safety requirements for electrical equipment for measurement, control and laboratory use - Part 2-051: Particular requirements for laboratory equipment for mixing and stirring
• Effective Date: 03-Mar-2020

Overview

EN IEC 61010-2-051:2021 (Part 2-051) sets particular safety requirements for electrically operated laboratory equipment for mixing and stirring. This fourth edition updates the previous 2015 edition and aligns the Part 2-051 requirements with IEC 61010-1. It applies to devices where mechanical energy affects shape, size or homogeneity of materials and to accessories. Equipment covered can include heating elements and is intended for use in chemical and general laboratory environments.

This part is a group safety publication in accordance with IEC Guide 104 and is intended to be used in conjunction with IEC 61010-1. The standard clarifies testing, marking and documentation, protection against electrical and mechanical hazards, and introduces specific risk-assessment expectations for use with hazardous fluids.

Key Topics

• Scope and applicability: Electrically operated laboratory mixers, stirrers, impellers and related accessories; devices that may contain heating elements.
• Edition changes: Technical revisions include adaptation to Amendment 1 of IEC 61010-1, added tolerance for AC voltage test equipment stability, and a required risk assessment for use with flammable, hazardous or toxic fluids.
• Marking & documentation:
  • Warnings for hand‑held mixers where operation could cause a hazard.
  • Instructions for fixing stirring vessels when supplied as part of a system.
  • Warnings against use in hazardous atmospheres or with materials outside the equipment design.
• Electrical protection and tests:
  • AC voltage test equipment must maintain test voltage within ±5% during the test.
  • Clauses from Part 1 remain applicable except where this Part 2-051 adds or replaces requirements.
• Mechanical hazards:
  • Requirements addressing hazards from shafts, impellers and rotating parts extending into materials.
  • Speed control design: if a single fault in an electronic speed control could create a hazard, means are required to interrupt power or prevent the hazard.
  • Equipment (except hand‑held) should not change position during normal use.
• Risk assessment: New emphasis on assessing equipment intended for use with flammable, hazardous or toxic fluids.

Applications

EN IEC 61010-2-051:2021 is directly applicable to manufacturers, test engineers and laboratory managers responsible for:

• Design and production of laboratory mixers and stirrers (bench, overhead, and system-integrated units).
• Manufacturing and testing of accessories and stirring vessels that interface with mixers.
• Laboratory safety compliance in chemical, pharmaceutical and research facilities.
• Performing hazard analyses and conformity assessment to the IEC 61010 series requirements.

Benefits include clearer safety expectations, improved conformity testing, and reduced risk from electrical faults, mechanical failures, heating elements and misuse with hazardous fluids.

Related Standards

• IEC 61010-1 - General requirements for safety of electrical laboratory equipment (used in conjunction with Part 2-051).
• IEC 61010-2-010 - Particular requirements for equipment containing heating devices (relevant when mixers include heaters).
• IEC Guide 104 - Group safety publication guidance.

Manufacturers and laboratories should apply EN IEC 61010-2-051:2021 together with Part 1 to ensure comprehensive electrical and mechanical safety for mixing and stirring equipment.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2021
Nadomešča:
SIST EN 61010-2-051:2015
Varnostne zahteve za električno opremo za meritve, nadzor in laboratorijsko
uporabo - 2-051. del: Posebne zahteve za laboratorijsko opremo za mešanje in
premešavanje (IEC 61010-2-051:2018)
Safety requirements for electrical equipment for measurement, control and laboratory
use - Part 2-051: Particular requirements for laboratory equipment for mixing and stirring
(IEC 61010-2-051:2018)
Sicherheitsbestimmungen für elektrische Mess-, Steuer-, Regel- und Laborgeräte - Teil 2
-051: Besondere Anforderungen an Laborgeräte zum Mischen und Rühren
(IEC 61010-2-051:2018)
Exigences de sécurité pour appareils électriques de mesurage, de régulation et de
laboratoire - Partie 2-051 : Exigences particulières pour appareils de laboratoire utilisés
pour mélanger et agiter (IEC 61010-2-051:2018)
Ta slovenski standard je istoveten z: EN IEC 61010-2-051:2021
ICS:
19.080 Električno in elektronsko Electrical and electronic
preskušanje testing
71.040.10 Kemijski laboratoriji. Chemical laboratories.
Laboratorijska oprema Laboratory equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61010-2-051

NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2021
ICS 19.080; 71.040.20 Supersedes EN 61010-2-051:2015 and all of its
amendments and corrigenda (if any)
English Version
Safety requirements for electrical equipment for measurement,
control and laboratory use - Part 2-051: Particular requirements
for laboratory equipment for mixing and stirring
(IEC 61010-2-051:2018)
Exigences de sécurité pour appareils électriques de Sicherheitsbestimmungen für elektrische Mess-, Steuer-,
mesurage, de régulation et de laboratoire - Partie 2-051 : Regel- und Laborgeräte -Teil 2-051: Besondere
Exigences particulières pour appareils de laboratoire Anforderungen an Laborgeräte zum Mischen und Rühren
utilisés pour mélanger et agiter (IEC 61010-2-051:2018)
(IEC 61010-2-051:2018)
This European Standard was approved by CENELEC on 2018-11-09. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61010-2-051:2021 E

European foreword
The text of document 66/642/CDV, future edition 4 of IEC 61010-2-051, prepared by IEC/TC 66
"Safety of measuring, control and laboratory equipment" was submitted to the IEC-CENELEC parallel
vote and approved by CENELEC as EN IEC 61010-2-051:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022-08-02
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-08-02
document have to be withdrawn
This document supersedes EN 61010-2-051:2015 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a Standardization Request given to CENELEC by the
European Commission and the European Free Trade Association, and supports essential
requirements of EU Directive(s) / Regulation(s).
For the relationship with EU Directive(s) / Regulation(s), see informative Annex ZZ, which is an
integral part of EN IEC 61010-2-051:2021/A11:2021.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61010-2-051:2018 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 61010-2-010 NOTE Harmonized as EN IEC 61010-2-010
IEC 62061 NOTE Harmonized as EN 62061
ISO 13849 (series) NOTE Harmonized as EN ISO 13849 (series)
IEC 61010-2-051 ®
Edition 4.0 2018-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
GROUP SAFETY PUBLICATION
PUBLICATION GROUPÉE DE SÉCURITÉ

Safety requirements for electrical equipment for measurement, control, and

laboratory use –
Part 2-051: Particular requirements for laboratory equipment for mixing and

stirring
Exigences de sécurité pour appareils électriques de mesurage, de régulation, et

de laboratoire –
Partie 2-051: Exigences particulières pour appareils de laboratoire utilisés pour

mélanger et agiter
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 19.080; 71.040.20 ISBN 978-2-8322-6061-6

– 2 – IEC 61010-2-051:2018 © IEC 2018
CONTENTS
FOREWORD . 3
1 Scope and object . 5
2 Normative references. 5
3 Terms and definitions . 5
4 Tests . 5
5 Marking and documentation . 5
6 Protection against electric shock . 6
7 Protection against mechanical HAZARDS . 6
8 Resistance to mechanical stresses . 7
9 Protection against the spread of fire . 8
10 Equipment temperature limits and resistance to heat . 8
11 Protection against HAZARDS from fluids and solid foreign objects . 8
12 Protection against radiation, including laser sources, and against sonic and
ultrasonic pressure . 8
13 Protection against liberated gases and substances, explosion and implosion . 8
14 Components and subassemblies . 8
15 Protection by interlocks . 8
16 HAZARDS resulting from application . 9
17 RISK assessment . 9
Annexes . 9
Bibliography . 10

IEC 61010-2-051:2018 © IEC 2018 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT FOR
MEASUREMENT, CONTROL, AND LABORATORY USE –

Part 2-051: Particular requirements for laboratory
equipment for mixing and stirring

FOREWORD
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