Methyl orange as a screening reagent for organic bases.

and develop comparable regulatory programs for their state or (b) require intrastate clinical laboratories providing toxicological services to participate in the toxicology proficiency program now being separately developed by the National Center for Disease Control or the College of American Pathologists. The failure to provide adequate safeguards by mandatory drug-abuse proficiency testing opens the door to unacceptable medical, as well as social, repercussions.