EPA Method 552,552.1,552.2 Internal Std Back Catalog number: 30105 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 684291 Hexachlorobenzene, 10.0 µg/ml, Acetonitrile, 10m Price on request 8CL-PFOS Sodium 8-chloroperfluoro-1-octanesulfonate, 1.2ml x 50ug/ml, methanol Price on request 673372 Methiocarb, 10.0 µg/ml, Acetonitrile, 10ml Price on request