EPA Method 625 Base/Neutrals Mix #4 Back Catalog number: 19317 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 6:6PFPI Sodium bis(perfluorohexyl)phosphinate, 1.2ml x 50ug/ml, methanol Price on request 673996 Bentazone, 100 µg/ml, Acetonitrile, 5ml Price on request ALD Aldrin, 1.2mL x 100ug/mL, nonane Price on request