EPA Method 507 Analyte Mix #10

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-

Nonafluoro-1-butanesulfonic acid, 100mg

d4 C28 alpha alpha alpha (20R)/C29 alpha alpha alpha (20R)-Methyl/Ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.