EPA Method 525.2 Standard Back Catalog number: 92693 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676908 Pentadecafluorooctanoic acid, 100 µg/ml, Methanol Price on request EPA-23SS Surrogate Standard Solution, 1.2ml, nonane Price on request 70650 Diflubenzuron Price on request