EPA Method 551Mix “A” Back Catalog number: 30194 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0602.27-100-IO alphaßß (20R)-Cholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 69483-47-2 Price on request 33961 Ethyl-t-butyl ether Price on request 53159 CLP CRI Standard Price on request