I am glad people find plausibility checking of lab data interesting !!
Here is a good readme file (with results of the study; partial results submitted to AMIA; working of follow up) : https://github.com/vojtechhuser/DataQuality/tree/master/extras/DqdResults
And the key file would be this one https://github.com/vojtechhuser/DataQuality/blob/master/extras/DqdResults/S01-benchmark-kb-subset.csv
For that test (3007461 and 8848 unit) P01 (percentile 1) is 20. One check we envision is to see if your data percentile p01 for that lab-unit pair is in the same range (to be yet determined the width of that range, maybe ±SD; )
(in your lab test the SD is too big 1480, I would say to be used a good indicator)
I have to admin that reaching DQD developers consensus on these things is challenging…
(we can simply use mean P01 as the threshold and specify some value for records that we are OK with (well 1% would make some sense) being off that mark