Metals Calibration Standard Back Catalog number: 50071 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675714 Pyraflufen monohydrate (free acid), 10mg Price on request C587462 Cloxacillin-13C4 Sodium Salt, 1mg Price on request 676528 Methyl-1,2,3,6-tetrahydrophthalic Anhydride (mixtu Price on request