One 2 mL flame-sealed ampule in methanol requires spiking onto the provided ten grams of solid matrix before analysis. Use with EPA Methods 8021, 8260, or other applicable methods. Includes a subset of the analytes listed below at 20200 μg/kg (40400 μg/kg for total xylenes, 801000 for selected ketones, and 1001000 μg/kg for acetonitrile).