EPA Method 8240A - Purgeable Surr Std Back Catalog number: 20002 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 53009 Mercury (Hg) Price on request 674491 PSA-C18-Mix 1 Price on request DF-3467-S 3,4,6,7-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request