EPA Method 8240A Mix #2 Back Catalog number: 82492 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91951 Paraquat Price on request 34371 Hexachlorobutadiene, 2000µg/ml in MeOH, 1ml Price on request 50210 Total Phosphorus (P), 100µg/ml in Water, 100ml Price on request