EPA Method 508A DCB Stock Solution

2,3-Dibromo-7,8-dichlorodibenzofuran, 1.2ml x 50ug/ml, toluene

1,2,3,4-Tetrachlorobenzene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 634-66-2

EPA Method 508 Standard