EPA Method 507 Pesticide Standard

2-Methyl-3,3',4,4'-tetrachlorodiphenylmethane

4-Chlorophenyl phenyl ether

Daily Quality Control Standard (with 4 Fluorinated Compounds Internal Standard) 14 Analytes + 4 ISTD, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% n-Hexane 12 Toluene 9 n-Heptane 17