Calibration Std. #2 Back Catalog number: 59967X Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11715.12-100-IO 2,2',3,5,6-Pentachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 3443.2-100-CY Methamidophos Price on request DFP-IS-B10 Mass-Labelled PCDD & PCB Internal Standard Solution, 1.2ml, nonane Price on request