EPA Method 8260 Internal Standard - Revised Back Catalog number: 21013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680925 Antipyrine, 10.0 µg/ml, Acetonitrile, 10ml Price on request 93998 Dibenzo(a,h)anthracene Price on request C15605500 N-Nitroso-methylethylamine, 100mg Price on request