COD Calibration Standard Back Catalog number: 50451 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677542 cis-1,2,3,6-Tetrahydrophthalimide, 100 µg/ml, Ace Price on request 93595 EPA Method 8141 Standard Price on request 91738 o-Terphenyl Price on request