EPA Method 8240A Sys Perf Check Cmpds

Benz[a]anthracene-d12, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 1718-53-2

n-Eicosane, ?13C: -33.06, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 112-95-8

2,2',4,4',6-Pentabromo-6'-methoxy[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane