quality control - eqas - urine chemistry - Narcotic drugs in human urine, qualitative and quantitative, 2 lyophilized urine samples, 1 evaluation report, Qualicont®, analytes: Amphetamine, Methamphetamine, MDMA (Ecstasy), Barbiturate-Phenobarbital, Benzodiazepin-Lorazepam, Cannabinoids(11-nor-Delta-9-THC-COOH), Benzoylecgonine, Buprenorphine, EDDP, Methadone, Morphine, LSD, code 178, survey in 2025.05