EPA Method 525.2 Standard Back Catalog number: 92693 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 682696 Isonicotinic acid, 1000mg Price on request 676888 Oxamyl-oxime, 10.0 µg/ml, Acetonitrile, 1ml Price on request 674814 Prothoate, 10mg Price on request