Calibration Std. #1 Back Catalog number: 59964X Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended BPF 4,4'-Dihydroxydiphenylmethane, 1.2ml x 50ug/ml, methanol Price on request 30277 EPA Method 548.1 Analyte Price on request 91757 MA - VPH Primary Calibration Spike Price on request