EPA Method 528 Internal Standard

Daily Quality Control Standard (without Internal Standard) 13 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name: Wt. % Name Wt. % 1232.6 n-Hexane

Methyl tridecanoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1731-88-0

Benzene