ive been testing for over 25 years ive used powder at quest five times and i have tested this stuff myself with both validation ( Creatinine, Glutaraldehyde, Nitrites, Oxidants / Pyridinium Chlorochromate, PH, Specific Gravity
..) and UA sticks looking at Urobilinogen, Bilirubin,Ketone,Creatinine,Blood,Protein, Micro Albumin,Nitrite,Leukocytes,Glucose.Specific Gravity, pH,Ascorbate,Calcium.. NOTHING and i mean NOTHING but all normal human levels . yet i can find plenty of folks who have been detected using liquid products. BIOCIDE as in peroxides and other oxidizing agents (e.g. Glutaraldehyde , nitrites) , easy to look up patent info on liquid products and you can see what they put in it regarding these agents that are needed to keep it looking fake yellow color on the shelf .
the thing is not all places are LABS many are collection centers that use e cups and only send to lab if it says positive.
as well as it also matters WHO is collecting, whats the SOP? some karen may lok at it and see its flat and odorless as most liquides are and toss it and reequest another. you can pass with liquide IF they dont care how it looks or doesnt smell and the validation ( if one is ran ) doesnt detect soemthing that should not be thier . i know off top of my head i have seen upass and quick fix and few others users mention failing a number of times. but i have never heard of same issues regardign powdered .