title: Challenge test. Suggested method for pharmaceutical preparations.
mesh_terms: D000391:Air Microbiology; D002626:Chemistry, Pharmaceutical; D004355:Drug Stability; D004356:Drug Storage; D004777:Environment; D008722:Methods; D009824:Ointments / Q000592:standards; D009883:Ophthalmic Solutions / Q000592:standards; D011549:Pseudomonas / Q000302:isolation & purification; D012996:Solutions / Q000592:standards
chemical_list: D009824:Ointments; D009883:Ophthalmic Solutions; D012996:Solutions