The DO limits are not fixed, but are calculated relative to the DO measurement... somehow. I'll let NEMS take it from here:
Therefore the usual deviation plot (currently in the style of a process control chart) doesn't work. We would need to implement some clever sort of squiggly plot to indicate the actual QC limits.
The DO limits are not fixed, but are calculated relative to the DO measurement... somehow. I'll let NEMS take it from here:
Therefore the usual deviation plot (currently in the style of a process control chart) doesn't work. We would need to implement some clever sort of squiggly plot to indicate the actual QC limits.