ISO/TS 11155的本部分规定了颗粒过滤试验，包括设备的关键特性， 试验程序和报告格式，用于实验室试验台中过滤器元件的一致性评估 颗粒尺寸大于0.3μm。适用于从外部或外部去除颗粒物的过滤器 用于机动车辆乘客舱或驾驶室通风的循环空气。 ISO/TS 11155本部分规定的试验能够评估滤芯的压力损失， 针对标准化实验室的分级过滤效率和加速颗粒保持能力 微粒挑战。 因为测试方法排除了所有可能的微粒挑战和 由于环境影响，过滤器的相对等级可能会在使用中发生变化。 注1:只有形状、尺寸和位置相同的滤芯才可能具有绝对可比性 在测试管道中。 注2:根据供应商和客户之间的协议，测试程序允许计算 重量分析效率作为质量控制的单一参数。有关重量分析效率测试，请参考ISO 5011。

This part of ISO/TS 11155 specifies a particulate filtration test, including the critical characteristics of equipment, test procedure and report format, for the consistent assessment of filter elements in a laboratory test rig with particle sizes larger than 0,3 μm. It is applicable to filters for removing particulate matter from external or recirculated air used for ventilating motor vehicle passenger compartments or cabins. The test specified in this part of ISO/TS 11155 enables an assessment of filter elements for pressure loss, fractional filtration efficiency and accelerated particulate holding capability against standardized laboratory particulate challenges. Because the test methods exclude the full range of possible particulate challenges and environmental effects, the relative ranking of filters may change in service. NOTE 1 Absolute comparability is only possible with filter elements of the same shape and size as well as the same position in the test duct. NOTE 2 Subject to agreement between supplier and the customer, the test procedure allows for the calculation of gravimetric efficiency as a single parameter for quality control purposes. For gravimetric efficiency tests refer to ISO 5011.