VPH Primary Calibration Rev 1.1 Back Catalog number: 97386 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50201 Fluoride (F-) Price on request 679350 4-Chloronitrobenzene, 100 µg/ml, Methanol, 1ml Price on request M8PFOS Sodium perfluoro-[13C8]octanesulfonate, 1.2ml x 50ug/ml, methanol Price on request