EPA Method 8151 Standard Back Catalog number: 94509 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended M4H29 2',4',5'-Trichloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene Price on request PCB-IS-C Mass-Labelled PCB Syringe Spike Solution, 1.2ml, nonane Price on request 70217 Metolachlor Price on request