TX TPH Calibration Standard (High End) Back Catalog number: 95155 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90611 525/526 Internal Standard Price on request 95942 8141 Pesticides - NPD Price on request 3353.8-100-AN 2,4-D, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 94-75-7 Price on request