Total Residual Chlorine (Cl) Back Catalog number: 59379 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0045.20-100-T 1-Nitroperylene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 35337-20-3 Price on request 30003 EPA Method 500 Series Internal Std #4 Price on request 94129 Pesticide Standard Price on request