Description: accumulated span of uptime from the object's initial startup or from recovery to failure; Name: uptime to failure
Description: Operating time accumulated from the first use, or from restoration, until failure ; Name: Operating time to failure
Description: Speed that characterizes a pump in terms of its speed, flow rate per impeller eye, i.e. total flow for single-flow impeller, half flow for double-flow impeller, at the best efficiency point and head per stage at maximum impeller diameter ; Name: Specific speed