EPA Method 502/524 Surrogate Standard #1 Back Catalog number: 30070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11903.6-K-ME Metronidazole,1000 µg/mL,MeOH,1mL, Price on request X9017 Benzo(b)fluoranthene Price on request 673287 Fenoxycarb, 100 µg/ml, Acetonitrile, 5ml Price on request