IEC 61340-4-4:2005 静电第4-4部分:特殊应用的标准试验方法.柔性中间散装容器（FIBC）的静电分类

标准编号：IEC 61340-4-4:2005

中文名称：静电第4-4部分:特殊应用的标准试验方法.柔性中间散装容器（FIBC）的静电分类

英文名称：Electrostatics — Part 4-4: Standard test methods for specific applications - Electrostatic classification of flexible intermediate bulk containers (FIBC)

发布日期：2005-10-28

标准范围

描述了评估FIBC静电放电对易燃易爆环境的点火风险的程序。本标准的要求适用于所有类型的FIBC，这些FIBC在使用前按制造方式进行测试，拟在易燃或易爆环境中使用，且最小点火能量超过0.14 mJ，充电电流不超过3.0 A。注-0,14 mJ是甲醇通常引用的最小点火能量。尽管存在更敏感的材料，但在排空FIBC时，甲醇的最小点火能量最低。3,0 uA是常见工业过程中可能发现的最高充电电流。最小点火能量和充电电流的组合代表了实践中可能出现的最严重情况。遵守本标准的要求并不能减轻全面风险评估的需要。本标准中包含的试验方法可与其他性能要求结合使用，例如，当风险评估显示所关注的最小点火能量小于0.14 mJ或存在大于3.0 uA的充电电流时。

Describes procedures for evaluating the ignition risk presented by electrostatic discharges from FIBC to flammable or explosive environments.

The requirements of this standard are applicable to all types of FIBC, tested as manufactured, prior to usage, intended for use without liners in flammable or explosive environments with minimum ignition energy of more than 0,14 mJ, and where the charging currents do not exceed 3,0 A.

NOTE - 0,14 mJ is the minimum ignition energy normally quoted for methanol. Although more sensitive materials exist, methanol has the lowest minimum ignition energy of any material that is likely to be present when FIBC are emptied. 3,0 uA 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.

Compliance with the requirements of this standard does not mitigate the need for full risk assessment.

The 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 or charging currents greater than 3,0 uA are present.

标准预览图