Carbon-13C1-tetrachloride,2000 µg/mL,MeOH,1mL,

p,p'-(13C12)Methoxychlor, 100µg/ml in Nonane, 1,2ml

1,2,3,4,8,9-Hexachloro(13C12)dibenzofuran, 1.2mL x 50ug/mL, toluene

EPA Method 502/524 High Conc VOC Mix #7, 2000µg/ml in MeOH,1ml