What is PMA? Will the kit screen for it?
PMA, or paramethoxyamphtamine, is a drug that has been found in some fake "ecstasy" tablets, and has been responsible for a large number of deaths. For more information on PMA, visit the London Toxicology Group's PMA page.
Ecstasy testing kits are effective in screening against PMA because they do not change color in its presence.
taken from:
http://www.dancesafe.org/testingkits/
Its a little misleading. You can't say you are testing for something because nothing happens, although this and other sites do. Another interpetation is:
"If the substance does not go one of the colours shown on the chart, all that it means is that it is definantly not <insert substance>. Therefore it could be PMA, Pasta, A cargo liner, 3 headed monkey"
[ 19 March 2002: Message edited by: Soma ]