EPA Method 8260B Mix #4 Back Catalog number: 82466 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677922 Pyrethrins, 100 µg/ml, Ethyl acetate, 1ml Price on request M4H159 2',3,3',4',5,5'-Hexachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene Price on request 93984 WS Disinfection By-Products - Cal Check 2 Price on request