Total Residual Free Chlorine (Cl) Back Catalog number: 54224 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90577 1,4-Dioxane Price on request 11701.12-100-IO 2,3',4',5-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 14060-100AN5 PAH - Mix 18, 100µg/ml in Acetonitrile, 5ml Price on request