EPA Method 525 - Phthalate Standard

Sodium Nitrate as Nitrate [NO3]

Daily Quality Control Standard (without Internal Standard) 14 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% n-Hexane 12 Toluene 9 n-Heptane

N-(3-dimethylaminopropan-1-yl)perfluoro-1-hexanesulfonamide, 1.2ml x 50ug/ml, methanol