EPA Method 552,552.1,552.2 Internal Std Back Catalog number: 30105 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678377 2,4'-DDD, 100 µg/ml, Acetonitrile, 5ml Price on request 90796 N-Nitrosodimethylamine Price on request 673450 Thiabendazole, 10 µg/ml, Acetonitrile, 10ml Price on request