EPA 8240B Calibration Standard Back Catalog number: 98430 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0934.5-100MG 2-Methylthiophene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 554-14-3 Price on request 681772 Octocrylene, 100 µg/ml, Acetonitrile, 1ml Price on request SC-258725 1-Chloroperfluorohexane, 5g Price on request