TX TPH Calibration Standard (High End) Back Catalog number: 95155 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0220.20-200-T Perylene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 198-55-0 Price on request 30182 EPA Method 507 Analyte Mix #1 Price on request 70202 Indeno(1,2,3-cd)pyrene Price on request