Calibration Standard Kit Back Catalog number: 53089 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96768 Sodium Benzoate & Potassium Sorbate (0.2%) Price on request 8499.12-100 Dapsone, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 80-08-0 Price on request 73547 Chlormephos Price on request