Acetal (1,1-Diethoxyethane), 1g

2,3,3',4',5,5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

2,4,6-Trichlorophenol, 10µg/ml in MeOH, 10ml

EPA Method 533 Native Primary Std. (br/linear mix), 500ng/ml in MeOH, 1,2ml