VPH Primary Calibration Spike Rev 1.0 Back Catalog number: 92109 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11751.12-100-IO 2,3,3',4,5,5'-Hexachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request 95004 Desisopropylatrazine & Pendimethalin Price on request 72081 2-Methyl-4,6-dinitrophenol-d2 Price on request