Metals Calibration Standard Revised Back Catalog number: 50189 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8913.14 5-Methyl-2,3',4,4'-tetrachlorodipehnylmethane, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. Price on request PFPRA Perfluoropropanoic acid, 50µg/ml in MeOH, 1,2ml Price on request X9016 Benzo(a)anthracene Price on request