Method 525.2 Solution A

Daily Quality Control Standard (with 3 Fluorinated Compounds Internal Standard) 14 Analytes + 3 ISTD, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% n-Hexane 12 Toluene

Isopropylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 696-29-7

Simple Cyanide (CN-)