EPA Method 8260B Internal Standard Back Catalog number: 22213 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674040 Haloxyfop-P, 100 µg/ml, Acetonitrile, 5ml Price on request 50631 Ammonia as (NH4+) Price on request 673480 Bifenthrin, 10.0 µg/ml, Ethyl acetate, 10ml Price on request