EPA Method 8315 Calibration Mix #1 Back Catalog number: 83509 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681380 6-Benzylaminopurine, 100mg Price on request P-326S 2-Hydroxyatrazine, 100µg/mL in MeOH:AC (98:2),1ml Price on request 73442 1,2-Benzofluorene Price on request