EPA Method 1657 Analytes Back Catalog number: 31784 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677550 Etridiazole, 10.0 µg/ml, Cyclohexane, 10ml Price on request 676882 Praziquantel, 250mg Price on request 57005 Boron (B) Price on request