EPA Method 8240A - Purgeable Surrogate Std

Dinaphtho[2,1,8,7-defg;2',1',8',7'-opqr]pentacene, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 188-91-0

2,3,4,4',6-Pentachlorobiphenyl ,100 µg/mL,isooctane,1mL,

3-Ethylcarbazole, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 5599-49-5