EPA Method 550 Analytes Back Catalog number: 31051 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678279 Chlorthion, 100 µg/ml, Acetonitrile, 5ml Price on request 8646.12-50-NN 1,2,3,4,7-Pentachlordibenzo-p-dioxin,50 µg/mL,n-nonane,1mL, Price on request 40022 EPA Method 627 - Analytes Price on request