EPA Method 552.2 - Surrogate Standard Back Catalog number: 30108 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95174 Herbicide Acid Standard Price on request 684330 2-[3-(Trifluoromethyl)phenoxy]nicotinic acid, 10mg Price on request 680830 2-Chlorobenzonitrile, 250mg Price on request