EPA Method 624Mix #1 - Purgeables Back Catalog number: 40021 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 50778 Turbidity (2.0 NTU) Price on request 3420.12-100-AN Hexazinone, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 51235-04-2 Price on request 679890 2,4-Diaminoanisole, 100 µg/ml, Acetonitrile, 1ml Price on request