Solids (EPA Methods 160.1,.2,.3)

Daily Quality Control Standard (with Internal Standard) 15 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% n-Hexane 11 Ethylbenzene

Acrylamide, 100µg/ml in Acetonitrile, 5ml

4,4'-Difluorobiphenyl, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 398-23-2