VPH Primary Calibration Rev 1.1 Back Catalog number: 97386 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675517 Nitrapyrin, 10 µg/ml, Ethyl acetate, 10ml Price on request 38071 PT Semi-Volatiles in Non-Potable Water - CLP Price on request T-PFOA Technical Ammonium Perfluorooctanoate, 1.2ml x 50ug/ml, methanol Price on request