How to test drugs using reagent

Here is an instructions video on how to use reagents made by Energy Control

For a chart of possible results check out this image made by DanceSafe.org http://imgur.com/RK5EPhG
Or this Reagent test result charts – album created by the sub-reddit https://www.reddit.com/r/ReagentTesting : http://imgur.com/a/F7POl
For an up to date list visit the wiki of /r/ReagentTesting at https://www.reddit.com/r/ReagentTesting/wiki/nps