EPA Method 508 Pesticide Standard Back Catalog number: 92961 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50460 Copper AA Standard (Cu) Price on request 675306 Metribuzin, 100 µg/ml, Acetonitrile, 5ml Price on request 51162 Sulfur in Isooctane - 0.01 Wt% Price on request