EPA Method 8240A Sys Perf Check Cmpds

2,3',4,4',5-Pentachlorobiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 446254-80-4

Para-phenylenediamine,neat,neat,100mg,

2,2,3,3,4,5,5,6,6-Nonachlorobiphenyl