Morning-
I'm trying to nail this down and you seem like most knowledgeable cobber. Hope you don't mind a little early AM brain pick!
I use a test strip which indicates that a negative on the strip means I'm below 25n/ml concentration (per the insert that came with the strips). Assuming probation is a zero tolerance environment, is this good enough? I don't know whether I/A or GC/MS, nor do I know cut-off used by lab (BI). Bet my P.O. won't share!
Help?