EPA Method 8260B Surrogate Standard Back Catalog number: 23004 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675994 Fenthion-sulfoxide, 100 µg/ml, Toluene, 5ml Price on request 684246 D5-Nitrobenzene, 1000mg Price on request 70013 Anthracene, 1000ug/mL in methylene chloride Price on request