EPA Method 515.1 Underivatized Back Catalog number: 30040 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-H Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane Price on request C16610000 Pyrazophos, 250mg Price on request E1264 4''-Ethyl-2'-fluoro-4-propyl-1,1':4',1''-terphenyl, >98%, 1g Price on request