WS Disinfection By-Products - Cal Check 1 Back Catalog number: 92894 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 54559 Nitrite (NO2-) as N Price on request 60035 Canadian Drinking Water Volatiles Price on request MFOET 2-Perfluorooctyl-[1,1-2H2]-[1,2-13C2]-ethanol (8:2), 50µg/ml in MeOH, 1,2ml Price on request