1,2,3,5,7-Pentachloronaphthalene,,,,

Formic acid, 1000mg

3 Fluorinated Internal Standard Mix 3 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% Fluorobenzene 39.7 1-Fluoronaphthalene 20.9 4-Ethyl-

17?,18?(H),21ß(H),17-methyl-28-norhopane,neat,neat,ca. 5 µg,