VPH Primary Calibration Spike Rev 1.1 Back Catalog number: 51166 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50652 200.8Low Intermediate Standard - Parent Price on request 0172.18-500-IO 2-Phenyldibenzofuran, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 78210-31-8 Price on request 96730 Diethylene glycol Price on request