EPA Method 8250/8250A System Performance Check

2378-TCDD Specificity Mix for DB5/BP5/HP2/Rtx-5/SPB-5 , 1.2ml, nonane

2,3,5,6-Tetrachlorobiphenyl, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 33284-54-7

1,2,4,6-Tetrachloronaphthalene, 1.2mL x 50ug/mL, nonane