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IEC 61340-4-4:2018

Current
Current

The latest, up-to-date edition.

Electrostatics - Part 4-4: Standard test methods for specific applications - Electrostatic classification of flexible intermediate bulk containers (FIBC)
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English - French

Published date

01-30-2018

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Safe use of FIBC
6 Labelling
7 Requirements for FIBC
8 Atmosphere for conditioning, calibrating and testing
9 Test procedures
10 Test report
Annex A (informative) - Electrical breakdown voltage - Typical
        voltage/time graphs
Annex B (normative) - Polypropylene pellets for ignition testing
Annex C (informative) - Guidance on test methods for
        manufacturing quality control
Annex D (normative) - Classification of hazardous areas and zones
Annex E (informative) - Risks associated with cone discharges
Annex F (informative) - Explanation for resistance and resistivity
        limits, and thickness limits for insulating layers of
        inner liners
Bibliography

IEC 61340-4-4:2018 is also available as IEC 61340-4-4:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 61340-4-4:2018 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 can be created by the contents in the FIBC or can 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, inner liner, labels and document pockets;
– design and performance requirements for FIBC, inner liners, labels and document pockets;
– 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 can 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. This third edition cancels and replaces the second edition, published in 2012, and Amendment 1:2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) in light of experimental evidence, the maximum resistance to ground limit for Type C FIBC, and corresponding resistance limits for inner liners used in Type C FIBC has been increased from 10 M ohms to 100 M ohms;
b) the classification of Type L1 inner liners has been revised and extended to include Type L1C inner liners made from multi-layer materials with a conductive internal layer;
c) a labelling requirement to include a reference to IEC TS 60079-32-1 for guidance on earthing has been added.

Committee
TC 101
DevelopmentNote
Stability Date: 2022. (01/2018)
DocumentType
Standard
Pages
97
PublisherName
International Electrotechnical Committee
Status
Current
Supersedes

IEC 60243-1:2013 Electric strength of insulating materials - Test methods - Part 1: Tests at power frequencies
IEC 61340-2-3:2016 Electrostatics - Part 2-3: Methods of test for determining the resistance and resistivity of solid materials used to avoid electrostatic charge accumulation
IEC 60079-10-1:2015 Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres
ISO/IEC 80079-20-2:2016 Explosive atmospheres Part 20-2: Material characteristics Combustible dusts test methods
IEC 61340-2-1:2015 Electrostatics - Part 2-1: Measurement methods - Ability of materials and products to dissipate static electric charge
ISO 21898:2004 Packaging Flexible intermediate bulk containers (FIBCs) for non-dangerous goods
IEC 60243-2:2013 Electric strength of insulating materials - Test methods - Part 2: Additional requirements for tests using direct voltage
ISO 7000:2014 Graphical symbols for use on equipment Registered symbols
IEC TR 61340-1:2012 Electrostatics - Part 1: Electrostatic phenomena - Principles and measurements
CLC/TR 50404:2003 Electrostatics - Code of practice for the avoidance of hazards due to static electricity

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