EPA Method 515.2 Analytes - Underivatized Back Catalog number: 83597 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673368 Isofenphos-oxon, 10 µg/ml, Acetonitrile, 10ml Price on request 72553 See Part # 72551 Price on request 681201 TFNG, 100 µg/ml, Acetonitrile, 1ml Price on request