{"id":239538,"date":"2024-10-19T15:40:12","date_gmt":"2024-10-19T15:40:12","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-61340-4-42018\/"},"modified":"2024-10-25T10:22:34","modified_gmt":"2024-10-25T10:22:34","slug":"bs-en-iec-61340-4-42018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-61340-4-42018\/","title":{"rendered":"BS EN IEC 61340-4-4:2018"},"content":{"rendered":"<p>This part of <span class=\"std\"> <span class=\"std-ref\">IEC&nbsp;61340<\/span> <\/span> specifies requirements for flexible intermediate bulk containers (FIBC) between 0,25&nbsp;m <sup>3<\/sup> and 3&nbsp;m <sup>3<\/sup> 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.<\/p>\n<p>The requirements include:<\/p>\n<ul>\n<li>\n<p>classification and labelling of FIBC;<\/p>\n<\/li>\n<li>\n<p>classification of inner liners;<\/p>\n<\/li>\n<li>\n<p>specification of test methods for each type of FIBC, inner liner, labels and document pockets;<\/p>\n<\/li>\n<li>\n<p>design and performance requirements for FIBC, inner liners, labels and document pockets;<\/p>\n<\/li>\n<li>\n<p>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 ( <span class=\"std\"> <span class=\"std-ref\">IEC&nbsp;60079\u201110\u20112<\/span> <\/span>), and for explosive gas atmospheres ( <span class=\"std\"> <span class=\"std-ref\">IEC&nbsp;60079\u201110\u20111<\/span> <\/span>);<\/p>\n<\/li>\n<li>\n<p>procedures for type qualification and certification of FIBC, including the safe use of inner liners.<\/p>\n<\/li>\n<\/ul>\n<div class=\"non-normative-note\">\n<div class=\"note-label\">\n  NOTE&nbsp;1\n <\/div>\n<p>Guidance on test methods that can be used for manufacturing quality control is given in <span class=\"xref\">Annex&nbsp;C<\/span>.<\/p>\n<\/div>\n<p>The requirements of this document 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 (see <span class=\"xref\">Annex&nbsp;D<\/span> for classification of hazardous areas and explosion groups). For some types of FIBC, the requirements of this document apply only to use in hazardous explosive atmospheres with minimum ignition energy of 0,14&nbsp;mJ or greater and where charging currents do not exceed 3,0&nbsp;\u00b5A.<\/p>\n<div class=\"non-normative-note\">\n<div class=\"note-label\">\n  NOTE&nbsp;2\n <\/div>\n<p>0,14&nbsp;mJ represents a realistic minimum ignition energy for a Group IIB gas or vapour atmosphere. Although more sensitive materials exist, 0,14&nbsp;mJ is the lowest minimum ignition energy of any material that is likely to be present when FIBC are emptied. 3,0&nbsp;\u00b5A is the highest charging current likely to be found in common industrial processes. This combination of minimum ignition energy and charging current represents the most severe conditions that might be expected in practice.<\/p>\n<\/div>\n<p>FIBC are not normally used in Zone 0 or Zone 20. If FIBC are used in Zone 0 or Zone 20, the requirements of this document are applicable, together with additional requirements that are beyond the scope of this document to define.<\/p>\n<p>The volume contained within FIBC can be designated as Zone 20, in which case the requirements of this document are applicable.<\/p>\n<p>Solids containing residual solvent can result in a hazardous explosive atmosphere within FIBC, possibly resulting in the volume being designated as Zone 1 or Zone 2; in which case the requirements of this document are applicable.<\/p>\n<p>Compliance with the requirements specified in this document does not necessarily ensure that hazardous electrostatic discharges, for example cone discharges, will not be generated by the contents in FIBC. Information on the risks associated with cone discharges is given in <span class=\"xref\">Annex&nbsp;E<\/span>.<\/p>\n<p>Compliance with the requirements of this document does not mitigate the need for full risk assessment. For example, metal and other conductive powders and toner powders can require additional precautions to prevent hazardous discharges from the powders.<\/p>\n<div class=\"non-normative-note\">\n<div class=\"note-label\">\n  NOTE&nbsp;3\n <\/div>\n<p>In the examples mentioned in the paragraph above, additional precautions can be necessary in the case of metal or other conductive powder because if the powder is isolated and becomes charged, incendiary sparks can occur, and in the case of toner powders, incendiary discharges can occur during rapid filling and emptying operations. <span class=\"std\"> <span class=\"std-ref\">IEC&nbsp;TS&nbsp;60079\u201132\u20111<\/span> <\/span> <span class=\"xref\">[1]<\/span> <span class=\"xref\"> <sup>1<\/sup> <\/span> gives guidance on additional precautions that can be necessary.<\/p>\n<\/div>\n<p>Test methods included in this document can 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&nbsp;mJ, charging currents are greater than 3,0&nbsp;\u00b5A, or the ambient conditions are outside of the range specified in this document.<\/p>\n<p>Compliance with the requirements specified in this document does not necessarily ensure that electric shocks to personnel will not occur from FIBC during normal use.<\/p>\n<h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>2<b><\/td>\n<td>undefined  <\/td>\n<\/tr>\n<tr>\n<td><b>7<b><\/td>\n<td>English  <br \/> CONTENTS  <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>FOREWORD  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>INTRODUCTION  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>1 Scope  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>2 Normative references  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>3 Terms and definitions  <\/td>\n<\/tr>\n<tr>\n<td><b>17<b><\/td>\n<td>4 Classification <br \/> 4.1 Classification for FIBC <br \/> 4.1.1 Principles of classification <br \/> 4.1.2 Type A <br \/> 4.1.3 Type B <br \/> 4.1.4 Type C <br \/> 4.1.5 Type D <br \/> 4.2 Principles of classification and requirements for inner liners <br \/> 4.2.1 Components of inner liners  <\/td>\n<\/tr>\n<tr>\n<td><b>18<b><\/td>\n<td>4.2.2 Surface resistivity measurements for inner liners <br \/> 4.2.3 Breakdown voltage measurements for inner liners <br \/> Figures  <br \/> Figure 1 \u2013 Examples of inner liners in FIBC    <\/td>\n<\/tr>\n<tr>\n<td><b>19<b><\/td>\n<td>4.2.4 Type L1 <br \/> Tables  <br \/> Table 1 \u2013 Permissible configurations and requirements for Type L1 inner liners(without conductive internal layers)  <\/td>\n<\/tr>\n<tr>\n<td><b>20<b><\/td>\n<td>4.2.5 Type L1C <br \/> 4.2.6 Type L2 <br \/> Table 2 \u2013 Permissible configurations and requirements for Type L1C inner liners (with conductive internal layersa)  <\/td>\n<\/tr>\n<tr>\n<td><b>21<b><\/td>\n<td>4.2.7 Type L3 <br \/> Table 3 \u2013 Permissible configurations and requirements for Type L2 inner liners  <\/td>\n<\/tr>\n<tr>\n<td><b>22<b><\/td>\n<td>4.3 Combination of FIBC and inner liners <br \/> 5 Safe use of FIBC <br \/> Table 4 \u2013 Permissible configurations and requirements for Type L3 inner liners <br \/> Table 5 \u2013 Use of different types of FIBC  <\/td>\n<\/tr>\n<tr>\n<td><b>23<b><\/td>\n<td>Table 6 \u2013 Inner liners and FIBC: combinations that are permissible and not permissible in hazardous explosive atmospheres  <\/td>\n<\/tr>\n<tr>\n<td><b>24<b><\/td>\n<td>6 Labelling  <\/td>\n<\/tr>\n<tr>\n<td><b>25<b><\/td>\n<td>Figure 2 \u2013 Example of a label for Type B FIBC <br \/> Figure 3 \u2013 Example of a label for Type C FIBC  <\/td>\n<\/tr>\n<tr>\n<td><b>26<b><\/td>\n<td>Figure 4 \u2013 Example of a label for Type D FIBC <br \/> Figure 5 \u2013 Example of labels for Type C FIBC designated earth bonding points  <\/td>\n<\/tr>\n<tr>\n<td><b>27<b><\/td>\n<td>7 Requirements for FIBC <br \/> 7.1 General remarks <br \/> 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)  <\/td>\n<\/tr>\n<tr>\n<td><b>28<b><\/td>\n<td>7.3 Requirements for vapour and gas atmospheres and for dust environments with ignition energies of 3 mJ or less <br \/> 7.3.1 Type C FIBC <br \/> 7.3.2 Type D FIBC  <\/td>\n<\/tr>\n<tr>\n<td><b>29<b><\/td>\n<td>8 Atmosphere for conditioning, calibrating and testing <br \/> 8.1 Conditioning time <br \/> 8.2 Electrical breakdown voltage, surface resistivity and resistance to groundable point testing <br \/> 8.3 Surface resistivity testing <br \/> 8.4 Ignition testing <br \/> 9 Test procedures <br \/> 9.1 Sampling <br \/> 9.2 Electrical breakdown voltage  <\/td>\n<\/tr>\n<tr>\n<td><b>30<b><\/td>\n<td>9.3 Ignition testing <br \/> 9.3.1 Apparatus  <\/td>\n<\/tr>\n<tr>\n<td><b>31<b><\/td>\n<td>Figure 6 \u2013 Ignition probe  <\/td>\n<\/tr>\n<tr>\n<td><b>32<b><\/td>\n<td>Figure 7 \u2013 Perforated metal plate for use in ignition probe <br \/> Table 7 \u2013 Volume concentrations of flammable gas mixture  <\/td>\n<\/tr>\n<tr>\n<td><b>33<b><\/td>\n<td>Figure 8 \u2013 Gas control and mixing apparatus (schematic)  <\/td>\n<\/tr>\n<tr>\n<td><b>35<b><\/td>\n<td>Figure 9 \u2013 FIBC filling rig (schematic)  <\/td>\n<\/tr>\n<tr>\n<td><b>36<b><\/td>\n<td>Figure 10 \u2013 Corona charging unit (schematic)  <\/td>\n<\/tr>\n<tr>\n<td><b>37<b><\/td>\n<td>9.3.2 Establishing correct charging current <br \/> 9.3.3 Ignition tests  <\/td>\n<\/tr>\n<tr>\n<td><b>40<b><\/td>\n<td>9.4 Resistance to groundable point <br \/> 9.4.1 Apparatus <br \/> 9.4.2 Test procedure  <\/td>\n<\/tr>\n<tr>\n<td><b>41<b><\/td>\n<td>10 Test report <br \/> 10.1 General  <\/td>\n<\/tr>\n<tr>\n<td><b>42<b><\/td>\n<td>10.2 For all types of testing <br \/> 10.3 For electrical breakdown voltage testing <br \/> 10.4 For ignition testing <br \/> 10.5 For resistance to groundable point testing <br \/> 10.6 For surface resistivity testing of inner liners, labels and document pockets <br \/> 10.7 For test reports issued by accredited testing authorities  <\/td>\n<\/tr>\n<tr>\n<td><b>43<b><\/td>\n<td>Table 8 \u2013 Example of full sample descriptionto be included in the test report  <\/td>\n<\/tr>\n<tr>\n<td><b>44<b><\/td>\n<td>Annexes  <br \/> Annex A (informative) Electrical breakdown voltage \u2013 Typical voltage\/time graphs <br \/> Figure A.1 \u2013 Example of voltage\/time graph for materialshowing distinct breakdown <br \/> Figure A.2 \u2013 Example of voltage\/time graph for material showing reduction in rate of voltage rise because of conduction within the test material  <\/td>\n<\/tr>\n<tr>\n<td><b>45<b><\/td>\n<td>Annex B (normative) Polypropylene pellets for ignition testing <br \/> Table B.1 \u2013 Particle size distributionof polypropylene pellets  <\/td>\n<\/tr>\n<tr>\n<td><b>46<b><\/td>\n<td>Annex C (informative) Guidance on test methods for manufacturing quality control <br \/> C.1 Introductory remarks <br \/> C.2 Test methods <br \/> C.2.1 Resistance measurements  <\/td>\n<\/tr>\n<tr>\n<td><b>47<b><\/td>\n<td>C.2.2 Charge decay measurements <br \/> C.2.3 Charge transfer measurements  <\/td>\n<\/tr>\n<tr>\n<td><b>48<b><\/td>\n<td>Annex D (normative) Classification of hazardous areas and zones <br \/> Table D.1 \u2013 Classification of hazardous areas in IEC 60079-10-1and IEC 60079-10-2 <br \/> Table D.2 \u2013 Classification of zones in IEC 60079-10-1and IEC 60079-10-2  <\/td>\n<\/tr>\n<tr>\n<td><b>49<b><\/td>\n<td>Annex E (informative) Risks associated with cone discharges  <\/td>\n<\/tr>\n<tr>\n<td><b>50<b><\/td>\n<td>Annex F (informative) Explanation for resistance and resistivity limits, and thickness limits for insulating layers of inner liners <br \/> F.1 Resistance to groundable point limit for Type C FIBC <br \/> F.2 Resistivity of inner liners <br \/> F.3 Thickness of insulating layers of inner liners  <\/td>\n<\/tr>\n<tr>\n<td><b>52<b><\/td>\n<td>Bibliography  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Electrostatics &#8211; Standard test methods for specific applications. Electrostatic classification of flexible intermediate bulk containers (FIBC)<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2018<\/td>\n<td>54<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":239540,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-239538","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/239538","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/239540"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=239538"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=239538"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=239538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}