EPA Method 8260B Mix #5 Back Catalog number: 82445 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended M4H61 2',3',4',5'-Tetrachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene Price on request 674874 Difloxacin hydrochloride, 100mg Price on request 674762 Quinoxyfen, 100mg Price on request