BS ISO 19973-2:2015+A1:2019提供了评估气动定向泵可靠性的测试程序 控制阀的试验方法和报告试验结果的方法。一般试验条件 ISO 19973-1中提供了计算方法。ISO 19973-1中规定的方法适用于 使用三点移动平均法（3PMA）获得的第一次故障，无需维修，但 排除异常值。交叉引用:ISO 80000-1IEC 60050-191ISO 13849-2ISO 8778ISO 12238ISO 19973-1ISO 1219-1ISO 13849-1ISO 5598ISO 12100ISO 6358-1ISO 4414ISO 4413包含以下内容:修订，2019年2月

BS ISO 19973-2:2015+A1:2019 provides test procedures for assessing the reliability of pneumatic directional control valves by testing and the methods of reporting the results of testing. General test conditions and the calculation method are provided in ISO 19973-1. The methods specified in ISO 19973-1 apply to the first failure, as obtained with the three-points moving average (3PMA) method, without repairs, but excluding outliers.Cross References:ISO 80000-1IEC 60050-191ISO 13849-2ISO 8778ISO 12238ISO 19973-1ISO 1219-1ISO 13849-1ISO 5598ISO 12100ISO 6358-1ISO 4414ISO 4413Incorporates the following:Amendment, February 2019