EPA Method 525.2Mix #1 Back Catalog number: 92207 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 682554 alpha,alpha,alpha-Trichlorotoluene, 1000mg Price on request DF-IS-D40 Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request 71871 n-Pentacontane Price on request