EPA Method 507/525 Analyte Mix #5

3-Perfluoropropyl propanoic acid (3:3), 50µg/ml in MeOH, 1,2ml

2,2,6,6-Tetrachlorobiphenyl (BZ-54)

GC-IRMS Standards (C15 (?13C: -30.22); C20 (?13C: -33.06); C25 (?13C: -28.21)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no.