EPA Method 418.1 - TPH IR Standard Back Catalog number: 98245 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677299 Tepraloxydim, 100mg Price on request 673186 Aclonifen, 10.0 µg/ml, Acetonitrile, 10ml Price on request C587462 Cloxacillin-13C4 Sodium Salt, 1mg Price on request