Calibration Standard Set Back Catalog number: 53042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1124.18-200-T Benzo[1,2-b;4,5-b']bisbenzofuran, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 208-37-7 Price on request 70292 1,1,2-Trichloroethane Price on request 1308.32-K-IO n-Dotriacontane-d66, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 62369-68-0 Price on request