EPA Method 507 - Internal Standard

Aromatics Quantitative Calibration Standards (without Internal Standard) 2 Analytes, each Vol.% as listed in isooctane; unit: 7x25mL one of each Std. Analyte Analyte Std. 1 Std. 2 Std. 3 Std. 4 Std. 5 Std. 6 Std. 7

1-Octanethiol, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 111-88-6

Sodium 1H,1H,2H,2H-perfluorododecane sulfonate (10:2), 50µg/ml in MeOH, 1,2ml