EPA Method 8240A - Purgeable Surr Std Back Catalog number: 20002 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677896 Quinalphos, 100 µg/ml, Ethyl acetate, 1ml Price on request 10684.12-100-IO 2,3',5',6-Tetrachlorobiphenyl Price on request 93620 Sugars Standard Price on request