CLP Calibration Standard Back Catalog number: 52155A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72764 Heptachlor epoxide Price on request 3750.6-K-IO 1,2,3,4-Tetrachlorobenzene, 1000µg/mL in Isooctane, 1ml Price on request 672894 Chlorbenside, 100mg Price on request