EPA 1620 Standard 2 Back Catalog number: 52140 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678512 Tolclofos-methyl, 100 µg/ml, Acetonitrile, 1ml Price on request 72352 3,5-Dichloroaniline Price on request 680646 Pyrifluquinazon, 100 µg/ml, Acetonitrile, 1ml Price on request