EPA Method 8270C Mix #1 - BNS

Di-n-butyl-carbonate,neat,neat,1g,

Stigmasterol, 100µg/mL, Solvent-n-hexane, Unit 1mL, # of units-1, Cas.no. 83-48-7

17 alpha(H),21ß(H)-30-Norhopane, 50µg/mL in Isooctane, 1ml