EPA Method 524.2 - Revision 4.0 Back Catalog number: 33001 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 674044 Celiprolol, 50mg Price on request MET-11754A-25MG Dimethachlor ESA sodium salt, 25mg Price on request 12157.6-100-NN Pentachloronitrobenzene-13C6,100 µg/mL,n-nonane,1mL, Price on request