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 D492901 Diquat-d8 Dibromide (dipyridine-d8), 10mg Price on request 677595 4-tert-Octylphenol-mono-ethoxylate, 100 µg/ml, Ac Price on request 71191 Triethanolamine Price on request