Total Residual Free Chlorine (Cl) Back Catalog number: 54224 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675957 1-(3,4-Dichlorophenyl)-3-methylurea, 100 µg/ml, A Price on request 675932 D5-Propachlor OA, 5mg Price on request 680784 Propyzamide, 10 µg/ml, Cyclohexane, 10ml Price on request