EN 61340-4-4:2012
(Main)Electrostatics - Part 4-4: Standard test methods for specific applications - Electrostatic classification of flexible intermediate bulk containers (FIBC)
Electrostatics - Part 4-4: Standard test methods for specific applications - Electrostatic classification of flexible intermediate bulk containers (FIBC)
IEC 61340-4-4:2012 specifies requirements for flexible intermediate bulk containers (FIBC) between 0,25 m3 and 3 m3 in volume, intended for use in hazardous explosive atmospheres. The explosive atmosphere may be created by the contents in the FIBC or may exist outside the FIBC. The requirements include: - classification and labelling of FIBC; - classification of inner liners; - specification of test methods for each type of FIBC and inner liner; - design and performance requirements for FIBC and inner liners; - safe use of FIBC (including those with inner liners) within different zones defined for explosion endangered environments, described for areas where combustible dusts are, or may be, present (IEC 60079-10-2), and for explosive gas atmospheres (IEC 60079-10-1); - procedures for type qualification and certification of FIBC, including the safe use of inner liners. The requirements of this standard are applicable to all types of FIBC and inner liners, tested as manufactured, prior to use and intended for use in hazardous explosive atmospheres: Zones 1 and 2 (Groups IIA and IIB only) and Zones 21 and 22. For some types of FIBC, the requirements of this standard apply only to use in hazardous explosive atmospheres with minimum ignition energy of 0,14 mJ or greater and where charging currents do not exceed 3,0 μA. Compliance with the requirements specified in this standard does not necessarily ensure that hazardous electrostatic discharges, e.g. cone discharges, will not be generated by the contents in FIBC. Compliance with the requirements of this standard does not mitigate the need for full risk assessment. For example, metal and other conductive powders and toner powders may require additional precautions to prevent hazardous discharges from the powders. Test methods included in this standard may be used in association with other performance requirements, for example when a risk assessment has shown the minimum ignition energy of concern is less than 0,14 mJ, charging currents are greater than 3,0 μA, or the ambient conditions are outside of the range specified in this standard. Compliance with the requirements specified in this standard does not necessarily ensure that electric shocks to personnel will not occur from FIBC during normal use. This second edition cancels and replaces the first edition, published in 2005, and constitutes a technical revision. The main changes with respect to the first edition are listed below: a) Adoption of a type classification system for FIBC based on four types: A, B, C and D. b) Guidance for safe use of FIBC in relation to hazardous areas and hazardous zones defined in IEC 60079-10-1 and IEC 60079-10-2 is added. c) Resistance to groundable points and electrical breakdown voltage measurements on FIBC shall be measured at low humidity only. d) Requirements for labelling FIBC are changed to improve clarity and ease of recognition by end users. e) Classification, performance requirements and guidance for safe use of inner liners in combination with FIBC are added. f) An informative annex giving guidance on test methods for quality control and inspection testing is added.
Elektrostatik - Teil 4-4: Normprüfverfahren für spezielle Anwendungen - Einordnung flexibler Schüttgutbehälter (FIBC) in elektrostatischer Hinsicht
Electrostatique - Partie 4-4: Méthodes d'essai normalisées pour des applications spécifiques - Classification électrostatique des grands récipients pour vrac souples (GRVS)
La CEI 61340-4-4:2012 spécifie les exigences relatives aux grands récipients pour vrac souples (GRVS) dont le volume est compris entre 0,25 m3 et 3 m3, destinés à être utilisés dans des atmosphères explosives dangereuses. L'atmosphère explosive peut être créée par le contenu du GRVS ou peut exister à l'extérieur du GRVS. Les exigences comportent: - la classification et l'étiquetage des GRVS; - la classification des revêtements protecteurs intérieurs; - la spécification des méthodes d'essai pour chaque type de GRVS et de revêtement protecteur intérieur; - les exigences de conception et de performance des GRVS et des revêtements protecteurs intérieurs; - l'utilisation sûre des GRVS (incluant ceux qui comportent des revêtements protecteurs intérieurs) dans des zones différentes définies pour des environnements présentant un danger d'explosion, décrite pour des zones où des poussières combustibles sont présentes ou peuvent être présentes (CEI 60079-10-2) et pour des atmosphères explosives gazeuses (CEI 60079-10-1); - les procédures de qualification de type et de certification des GRVS, incluant l'utilisation sûre des revêtements protecteurs intérieurs. Les exigences de la présente norme sont applicables à tous les types de GRVS et de revêtements protecteurs intérieurs, testés dans leurs conditions de fabrication, avant utilisation, et destinés à être utilisés dans des atmosphères explosives dangereuses: zones 1 et 2 (Groupes IIA & IIB seulement) et zones 21 & 22. Pour certains types de GRVS, les exigences de la présente norme s'appliquent uniquement à une utilisation dans des atmosphères explosives dangereuses avec une énergie d'allumage minimale de 0,14 mJ ou plus et où les courants de charge ne dépassent pas 3,0 μA. La conformité avec les exigences spécifiées dans la présente norme ne garantit pas nécessairement que des décharges électrostatiques dangereuses, par exemple des décharges de cônes, ne seront pas générées par le contenu des GRVS. La conformité avec les exigences de la présente norme ne réduit pas la nécessité d'une évaluation complète des risques. Par exemple les poudres conductrices et les poudres de toner peuvent nécessiter des précautions supplémentaires pour empêcher des décharges dangereuses des poudres. Les méthodes d'essai comprises dans la présente norme peuvent être utilisées en association avec d'autres exigences de performance; par exemple lorsqu'une évaluation des risques a montré que l'énergie d'allumage minimale concernée est inférieure à 0,14 mJ, que des courants de charge sont supérieurs à 3,0 μA ou que les conditions ambiantes sont à l'extérieur de la plage spécifiée par la présente norme. La conformité avec les exigences spécifiées dans la présente norme ne garantit pas nécessairement que des chocs électriques sur le personnel ne se produiront pas à partir du GRVS au cours d'une utilisation normale. Cette seconde édition annule et remplace la première édition, publiée en 2005, et elle en constitue une révision technique. Les principales modifications par rapport à la première édition sont énumérées ci-dessous: a) Adoption du système de classification des GRVS basé sur quatre types: A, B, C et D. b) Des conseils sont ajoutés pour l'utilisation sûre de GRVS par rapport aux secteurs dangereux et des zones dangereuses définies dans la CEI 60079-10-1 et IEC 60079-10-2. c) La résistance aux points de mise à la terre et des mesures de tension de claquage électrique sur GRVS sera mesurée seulement lors de f
Elektrostatika - 4-4. del: Standardne preskusne metode za posebne aplikacije - Elektrostatična razvrstitev prožnih vmesnih vsebnikov (FIBC)
Ta del standarda IEC 61340 določa zahteve za prožne vmesne vsebnike (FIBC) s prostornino med 0,25 m3 in 3 m3 za uporabo v nevarnih eksplozivnih atmosferah. Eksplozivna atmosfera lahko nastane zaradi vsebine v prožnih vmesnih vsebnikih ali pa obstaja zunaj prožnih vmesnih vsebnikov. Zahteve vključujejo: – razvrstitev in označevanje prožnih vmesnih vsebnikov; – razvrstitev notranjih oblog; – specifikacijo preskusnih metod za vsako vrsto prožnih vmesnih vsebnikov in notranjih oblog; – varno uporabo prožnih vmesnih vsebnikov (tudi tistih z notranjimi oblogami) v različnih conah, opredeljenih za eksplozijsko ogroženo okolje, za območja, kjer je ali je lahko prisoten gorljiv prah (IEC 60079-10-2), ter za eksplozivne plinske atmosfere (IEC 60079-10-1); – postopke za kvalifikacijo in certificiranje vrst prožnih vmesnih vsebnikov, vključno z varno uporabo notranjih oblog. Zahteve tega standarda se uporabljajo za vse vrste prožnih vmesnih vsebnikov in notranjih oblog, ki so bili pred uporabo preizkušeni v takšni obliki, kot so bili izdelani, za uporabo v nevarnih eksplozivnih atmosferah: coni 1 in 2 (samo skupini IIA in IIB) ter coni 21 in 22 (glejte dodatek D za razvrstitev nevarnih območij in eksplozijskih skupin). Za nekatere vrste prožnih vmesnih vsebnikov se zahteve tega standarda nanašajo le na uporabo v nevarnih eksplozivnih atmosferah z najmanjšo vžigno energijo 0,14 mJ ali več, v katerih napajalni tokovi ne presegajo 3,0 μA. Skladnost z zahtevami iz tega standarda morda ne zagotavlja, da vsebina v prožnih vmesnih vsebnikih ne bo povzročila nevarnih elektrostatičnih razelektritev, npr. razelektritve nakopičenega prahu. Informacije o tveganjih, povezanih z razelektritvijo nakopičenega prahu, so v dodatku E. Skladnost z zahtevami tega standarda ne zmanjšuje potrebe po oceni celotnega tveganja. Kovinski in drug prevodni prah ter prah za tonerje lahko na primer zahteva dodatne preventivne ukrepe za preprečevanje nevarnih razelektritev prahu. Preskusne metode iz tega standarda se lahko uporabljajo z drugimi zahtevami glede zmogljivosti, na primer če v okviru ocene tveganja dobimo najmanjšo energijo vžiga, nižjo od 0,14 mJ, če so napajalni tokovi višji od 3,0 μA ali okoljski pogoji niso zajeti v tem standardu. Skladnost z zahtevami iz tega standarda morda ne zagotavlja, da med običajno uporabo prožnih vmesnih vsebnikov ne bo prišlo do električnih udarov osebja.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2012
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Electrostatics - Part 4-4: Standard test methods for specific applications - Electrostatic
classification of flexible intermediate bulk containers (FIBC)
Elektrostatik - Teil 4-4: Normprüfverfahren für spezielle Anwendungen - Einordnung
flexibler Schüttgutbehälter (FIBC) in elektrostatischer Hinsicht
Electrostatique - Partie 4-4: Méthodes d'essai normalisées pour des applications
spécifiques - Classification électrostatique des grands récipients pour vrac souples
(GRVS)
Ta slovenski standard je istoveten z: EN 61340-4-4:2012
ICS:
17.220.99 Drugi standardi v zvezi z Other standards related to
elektriko in magnetizmom electricity and magnetism
55.180.99 Drugi standardi v zvezi z Other standards related to
distribucijo blaga s prevozom freight distribution of goods
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 61340-4-4
NORME EUROPÉENNE
March 2012
EUROPÄISCHE NORM
ICS 17.220.99; 29.020; 55.080 Supersedes EN 61340-4-4:2005
English version
Electrostatics -
Part 4-4: Standard test methods for specific applications -
Electrostatic classification of flexible intermediate bulk containers (FIBC)
(IEC 61340-4-4:2012)
Electrostatique - Elektrostatik -
Partie 4-4: Méthodes d'essai normalisées Teil 4-4: Normprüfverfahren für spezielle
pour des applications spécifiques - Anwendungen -
Classification électrostatique des grands Einordnung flexibler Schüttgutbehälter
récipients pour vrac souples (GRVS) (FIBC) in elektrostatischer Hinsicht
(CEI 61340-4-4:2012) (IEC 61340-4-4:2012)
This European Standard was approved by CENELEC on 2012-02-22. 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland, Turkey and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61340-4-4:2012 E
Foreword
The text of document 101/346/FDIS, future edition 2 of IEC 61340-4-4, prepared by IEC TC 101,
"Electrostatics" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
(dop) 2012-11-22
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2015-02-22
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61340-4-4:2005.
4:2005:
a) Adoption of a type classification system for FIBC based on four types: A, B, C and D.
b) Guidance for safe use of FIBC in relation to hazardous areas and hazardous zones defined in
EN 60079-10-1 and EN 60079-10-2 is added.
c) Resistance to groundable points and electrical breakdown voltage measurements on FIBC shall be
measured at low humidity only.
d) Requirements for labelling FIBC are changed to improve clarity and ease of recognition by end users.
e) Classification, performance requirements and guidance for safe use of inner liners in combination with
FIBC are added.
f) An informative annex giving guidance on test methods for quality control and inspection testing is
added.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 61340-4-4:2012 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 61340-2-1 NOTE Harmonized as EN 61340-2-1.
- 3 - EN 61340-4-4:2012
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
IEC 60079-10-1 - Explosive atmospheres - EN 60079-10-1 -
Part 10-1: Classification of areas - Explosive
gas atmospheres
IEC 60079-10-2 - Explosive atmospheres - EN 60079-10-2 -
Part 10-2: Classification of areas -
Combustible dust atmospheres
IEC 60243-1 1998 Electrical strength of insulating materials - EN 60243-1 1998
Test methods -
Part 1: Tests at power frequencies
IEC 60243-2 - Electric strength of insulating materials - Test EN 60243-2 -
methods -
Part 2: Additional requirements for tests using
direct voltage
IEC 60417 Data- Graphical symbols for use on equipment - -
base
IEC 61241-2-3 - Electrical apparatus for use in the presence of - -
combustible dust -
Part 2: Test methods - Section 3: Method for
determining minimum ignition energy of
dust/air mixtures
IEC 61340-2-3 - Electrostatics - EN 61340-2-3 -
Part 2-3: Methods of test for determining the
resistance and resistivity of solid planar
materials used to avoid electrostatic charge
accumulation
ISO 7000 2004 Graphical symbols for use on equipment - - -
Index and synopsis
ISO 21898 - Packaging - Flexible intermediate bulk EN ISO 21898 -
containers (FIBCs) for non-dangerous goods
ASTM E582 - Standard test method for minimum ignition - -
energy and quenching distance in gaseous
mixtures
IEC 61340-4-4 ®
Edition 2.0 2012-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electrostatics –
Part 4-4: Standard test methods for specific applications – Electrostatic
classification of flexible intermediate bulk containers (FIBC)
Électrostatique –
Partie 4-4: Méthodes d'essai normalisées pour des applications spécifiques –
Classification électrostatique des grands récipients pour vrac souples (GRVS)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX X
ICS 17.220.99; 29.020; 55.080 ISBN 978-2-88912-851-8
– 2 – 61340-4-4 IEC:2012
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 8
3 Terms and definitions . 8
4 Classification . 10
4.1 Principles of classification for FIBC . 10
4.1.1 Type A . 10
4.1.2 Type B . 10
4.1.3 Type C . 10
4.1.4 Type D . 10
4.2 Principles of classification and requirements for inner liners . 11
4.2.1 Surface resistivity measurements for inner liners . 11
4.2.2 Special cases . 11
4.2.3 Type L1 . 11
4.2.4 Type L2 . 11
4.2.5 Type L3 . 12
4.3 Combination of FIBC and inner liners . 12
5 Safe use of FIBC . 13
6 Labelling . 14
7 Requirements for FIBC . 17
7.1 General remarks. 17
7.2 Requirements for dust environments with ignition energies greater than 3 mJ
(apply to Type B FIBC, Type C FIBC and Type D FIBC) . 17
7.3 Requirements for vapour and gas atmospheres and for dust environments
with ignition energies of 3 mJ or less . 17
7.3.1 Type C FIBC . 17
7.3.2 Type D FIBC . 18
8 Atmosphere for conditioning, calibrating and testing . 18
8.1 Conditioning time . 18
8.2 Electrical breakdown voltage and resistance to groundable point testing . 18
8.3 Ignition testing . 18
9 Test procedures . 18
9.1 Electrical breakdown voltage . 18
9.2 Ignition testing . 19
9.2.1 Apparatus . 19
9.2.2 Establishing correct charging current . 26
9.2.3 Ignition tests . 26
9.3 Resistance to groundable point . 28
9.3.1 Apparatus . 28
9.3.2 Test procedure . 29
10 Report . 30
10.1 For all types of testing . 30
10.2 For electrical breakdown voltage testing . 31
10.3 For ignition testing . 31
61340-4-4 IEC:2012 – 3 –
10.4 For resistance to groundable point testing . 31
10.5 For surface resistivity testing of inner liners . 31
10.6 For test reports issued by accredited testing authorities . 31
Annex A (normative) Electrical breakdown voltage – Typical voltage/time graphs . 33
Annex B (normative) Polypropylene pellets for ignition testing .
...
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