EPA Method 8020 Analytes Back Catalog number: 19214 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 83562 2,4-D Price on request 676953 Heptafluorobutyric acid, 100mg Price on request 679112 Tetrachlorvinphos, 10.0 µg/ml, Cyclohexane, 10ml Price on request