新的！IEC 61340-4-4:20 18作为IEC 61340-4-4:20 18 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。 IEC 61340-4-4:20 18规定了体积在0.25 m3至3 m3之间、用于危险爆炸性环境的柔性中型散货箱（FIBC）的要求。爆炸性环境可以由FIBC中的内容物产生，也可以存在于FIBC之外。要求包括: -FIBC的分类和标签； -内衬的分类； -每种FIBC、内衬、标签和文件袋的测试方法规范； -FIBC、内衬、标签和文件袋的设计和性能要求； -在为爆炸危险环境定义的不同区域内安全使用FIBC（包括带有内衬的FIBC），针对存在或可能存在可燃粉尘的区域进行了描述（IEC 60079-10-2)和爆炸性气体环境(IEC 60079-10-1)； -FIBC型式鉴定和认证程序，包括内衬的安全使用。第三版取消并取代了2012年发布的第二版和修正案1:20 14。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更: a)根据实验证据，C型FIBC的最大接地电阻限值以及C型FIBC中使用的内衬的相应电阻限值已从10 M欧姆增加到100 M欧姆； b)L1型内衬的分类已被修订并扩展至包括由具有导电内层的多层材料制成的L1C型内衬； c)增加了标签要求，包括参考IEC TS 60079-32-1的接地指南。

NEW!IEC 61340-4-4:2018 is 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.