EPA Method 525 Internals & Surrogates Back Catalog number: 91161 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680292 Cyanophos, 25mg Price on request 675373 Triflumizole Metabolite FM-6-1, 10mg Price on request 677918 Novaluron, 10.0 µg/ml, Acetonitrile, 10ml Price on request