EPA Method 8141/1657 Surrogate Standard Back Catalog number: 92357 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678425 gamma-HCH, 100 µg/ml, Acetonitrile, 5ml Price on request C14867050 Mepanipyrim-2-hydroxypropyl, 10mg Price on request A14670000AL-100 Maduramicin ammonium, 100µg/mL in Acetonitrile, 1ml Price on request