2,3,3’,4,4’-Pentachlorobiphenyl (105)

N-Nitroso-L-proline

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

EPA Method 533 Isotope Performance Standard PDS, 1.2ml, methanol