EPA method 633 Analytes Back Catalog number: 40048 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2729.13-K-IO 1-Isopropylnaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 6158-45-8 Price on request 55062 WP & DMRQA Total Residual Chlorine Price on request 71478 p-Chlorophenyl methyl sulfone Price on request