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