EPA Method 8260B Surrogate Standard Back Catalog number: 23112 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677160 Di-n-octyltin dichloride, 1000 µg/ml, Methanol, Price on request 72241 L-Proline Price on request 19149 2,3,7,8-Tetrachlorodibenzo-p-dioxin Price on request