EPA Method 507/525 Analyte Mix #6 Back Catalog number: 30087 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 14500-0390-100AN1 Cyclopenta(c,d)pyrene,100µg/ml in Acetonitrile, 1m Price on request 9386.21-K-ME (±)-trans-11-Nor-9-carboxy-delta-9-THC, 1000µg/ml in MeOH, 1ml Price on request 38333 WS Drinking Water Kit Price on request