EPA Method 509 Internal Standard Back Catalog number: 30097 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1134.14-K-ME n-Tetradecane Price on request DF-1238-S 1,2,3,8-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 52163A ILM 05.3 ICP-AES ICV Mix, Varied µg/mL in 5%-HNO3 / Water, 4x25ml Price on request