ISO 2941:2009规定了一种验证液压流体动力过滤器滤芯的坍塌/破裂压力额定值的方法，即过滤器滤芯在正常（即预期）流动方向上承受指定压差的能力，通过泵送污染液体通过滤芯，直到发生坍塌/破裂或达到最大预期压差，而不会导致滤芯故障。

ISO 2941:2009 specifies a method for verifying the collapse/burst pressure rating of a hydraulic fluid power filter element, i.e. the capability of a filter element to withstand a designated differential pressure at the normal (i.e., intended direction of) flow, by means of pumping contaminated fluid through the filter element until either collapse/burst occurs or the maximum expected differential pressure is reached without element failure.