EPA Method 509 Internal Standard Back Catalog number: 30097 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0033.34-10MG Dibenzo[cd,pg]bisanthene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 187-94-0 Price on request X9202 1,2,4-Trichlorobenzene Price on request 71226 m-Terphenyl Price on request