624B Internal / Surrogate Standard

1,2,3,5-Tetrachlorobenzene, 1000µg/ml in MeOH, 1ml

1H,1H-Perfluoroheptan-1-ol , 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 375-82-6

2,4-Dichlorophenol, 250mg