Interference Standard 1 Back Catalog number: 52039 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71790 Aroclor 5432 Price on request 0622.27-K-IO alpha alpha alpha (20R)-Cholestane, 1000µg/mL in Isooctane, 1ml Price on request 38158 RCRA Carbamates Price on request