标准摘要
[中文适用范围]: 本部分IEC 61340规定了体积在0.25 m³至3 m³之间的柔性中间散装容器(FIBC)的要求,旨在用于危险爆炸性环境中。爆炸性环境可能由FIBC内的内容物产生,也可能存在于FIBC外部。要求包括:FIBC的分类和标记;内衬的分类;每种类型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;在不同爆炸危险环境区域中安全使用FIBC(包括带有内衬的FIBC);FIBC的类型认证和认证程序。本文件的要求适用于所有类型的FIBC和内衬,在制造时进行测试,适用于危险爆炸性环境:1区和2区(仅限IIA和IIB组)以及21区和22区。对于某些类型的FIBC,本文件的要求仅适用于最小点火能量为0.14 mJ或更高且充电电流不超过3.0 μA的危险爆炸性环境。 [外文原描述]: IEC 61340-4-4:2018 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its 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.
英文名称Electrostatics - Part 4-4: Standard test methods for specific applications - Electrostatic classification of flexible intermediate bulk containers (FIBC)