Interference Standard 1 Back Catalog number: 52039 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9080 trans-1,3-Dichloro-1-propene Price on request 96869 Heptachlor epoxide Price on request 675684 1,1,2-Trichloro-1,2,2-trifluoroethane, 250mg Price on request