EPA 8240B Calibration Standard

B-One® High-Efficiency Recombinant b-glucuronidase, >12,000 PS-U/mL, All-in-one, 10ml

Bromocyclen, 100 µg/ml, Ethyl acetate, 5ml

1,4,5,8-Tetrachloronaphthalene (96%), 1.2ml x 48ug/ml, nonane