EPA Method 508 - Performance Check Solution Back Catalog number: 19132 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-13512A1-1ML Terbuthylazine, 100µg/ml in Acetonitrile, 1ml Price on request C10861320 2,3-Butanediol, certified, 0.25g Price on request MT4CPM Tris(4-chlorophenyl)methane-[13C19], 1.2ml x 50ug/ml, nonane Price on request