VPH Primary Calibration Spike Rev 1.0 Back Catalog number: 92109 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0013.16-100-T 1,3-Dinitropyrene, 100µg/ml in Toluene, 1ml Price on request 10556.12-1ML tert-Dodecylthiol (isomer mix.) Price on request 57719 Potassium (K) Price on request