EPA Method 548.1 Analyte Back Catalog number: 30177 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended WP-CS4 Dioxin-Like PCBs Individual Calibration Sol. CS4., in Nonane, 500µl Price on request 679749 Estrone, 250mg Price on request 679724 1,3-Propanediol, 250mg Price on request