Appendix IX Mix #2

2,2',5,5'-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Tetracosahydrocoronene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 54171-94-7

EPA Method 537 Surrogate Primary Dilution Standard (SUR PDS), 1.2ml, methanol