EPA Method 528 Internal Standard Back Catalog number: 93188 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C12677540 Dimethenamid-oxalamid, 25mg Price on request FRS-010N FR-651A Pentabromochlorocyclohexane, 10mg Price on request MT4CPME Tris(4-chlorophenyl)methanol-[13C19], 1.2ml x 50ug/ml, nonane Price on request