Yah i realize that but i have done lots of experimenting with these reagent tests and by getting a feel by testing known quality against unknown you can also get a general idea of wether the dose is atleast close. Its just one way amd one example to knowing wether you have what you want other than jabbing an uknown substance or inert oil.
Colorimetric tests do not --and are not intended to-- provide qualitative or quantitative analysis. They're neither validated, nor reliable in such an attempt, as demonstrated in several threads and articles here at Meso.
They're intended solely to show (subjectively) positive hits for a general class of compounds in expedient field testing by LE to provide probably cause for seizure, whereupon the samples are forwarded to an analytical lab for qualification.
Frankly, I think Labmax is incorrectly --if not deceptively-- marketed.
The only way to validate the contents of your AAS is lab analysis.