Total Residual Chlorine (Cl) Back Catalog number: 59379 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 54597 WP Total Hardness Price on request 9489.24-K-ME Tris(2-ethylhexyl)phosphate, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 78-42-2 Price on request 1667.11-100-IO 1,2-Dichloroundecane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 81246-86-8 Price on request