VPH Primary Calibration Rev 1.1 Back Catalog number: 51167 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended L13645500AL Fipronil-sulfone, 10 ng/µl, 10ml Price on request 681360 (R)-(+)-Limonene, 250mg Price on request 66017 2,2',4-Trichlorobiphenyl (17) Price on request