WS Disinfection By-Products - Cal Check 3 Back Catalog number: 93985 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71165 Trichlorphon, 1000µg/ml in MeOH, 1ml Price on request PN-72S 1,2,4,5,7,8-Hexachloronaphthalene, 1.2ml x 50ug/ml, nonane Price on request 56148 Cadmium (Cd) Price on request