EPA Method 527 Surrogate Standard Back Catalog number: 95053 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676303 Chlorothalonil, 100 µg/ml, Cyclohexane, 1ml Price on request 54231 Conductance @ 20°C Price on request 677013 1-Isopropyl-3-phenylurea, 25mg Price on request