EPA Method 502.1 - Liquids Back Catalog number: 30008 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-B40 Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request 59565 Arsenic (As) Price on request 674472 Bromoxynil-octanoate, 10.0 µg/ml, Acetonitrile, Price on request