TOC Calibration Standard Back Catalog number: 50110F Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3519.6-100MG 1,2,4-Trichlorobenzene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 120-82-1 Price on request HPCHLOR-NEP Heptachlor-endo-epoxide (isomer A), 1.2mL x 100ug/mL, nonane Price on request L20018900IO PCB No. 189, 10µg/ml in Isooctane, 10ml Price on request