EPA Method 8240A Calibration Check Compounds Back Catalog number: 82412 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678378 4,4'-DDD, 100 µg/ml, Acetonitrile, 5ml Price on request 59213 Anion Mix #4 Price on request F-7144-1G 2-Methoxy-1-propanol Price on request