SRCS (san rafael chemical services) used to test gear for people but the DEA raided them during operation raw deal and confiscated every test ever done. they charged 100$ per single compound. a compound like sust was of course alot more and tabs were the same 100$ but you had to send them at least 10 tabs. that is who everybody used to use william llewellyn included but now I do not know anywhere who tests gear in the USA. I have heard of guys overseas who can get tests done but there has to be somewhere in the states that tests quality as william still gets lab tests done. If anybody knows a legit reputable place PM me.