EPA Method 502/524 Volatile Standard

1,4,5,6,7,7-Hexachlorobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid,50 µg/mL,toluene,1mL,

2-Ethylhexyl 4-methoxycinnamate, certified, 0.1g

Alternative Cleanup Standard Spiking Solution, 1.2ml, nonane