Medical Marijuana Heavy Metals Calibration Back Catalog number: 50712 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 15900-0826-10AN5 Chloridazon-methyl-desphenyl, 10µg/ml in Acetonitrile, 5ml Price on request 93586 Semi-Volatile Standard Price on request 21061 CLP Pesticide Lab Control Standard Price on request