EPA Method 524.2 - Revision 4.0 Back Catalog number: 33001 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 50450 Custom Metals Standard Price on request XA10331100AC Atrazine-desethyl D6, 100 ng/µl, 1.1ml Price on request 79215 Acetonitrile Price on request