Wisconsin DNR PVOC Standard Back Catalog number: 90586 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-B40 Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request 2141.6-150K-RF tert-Butyl ethyl ether + blank RFA, 15Wt%, Solvent-neat, Unit 10mL, # of units-2+1, Cas.no. 637-92-3 Price on request 2048.7-10K-MEX5 alpha alpha alpha-Trifluorotoluene, Calibration (Surrogate) Standard, 10000µg/mL, Solvent-methanol, Unit 1mL, # of units-5, Cas.no. 98-08-8 Price on request