EPA Method 8240A Calibration Check Compounds Back Catalog number: 82412 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675440 D-Melibiose, 250mg Price on request 50466 ICP Mix - 20 µg / mL Price on request LA11457530CY Chloroparaffin C12 45.32% Cl, 10μg/mL in CY, 1ml Price on request