01611oam 2200421Ia 450 991069965370332120230902161814.0(CKB)5470000002404399(OCoLC)668400726(EXLCZ)99547000000240439920101006d1992 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierMethod 509[electronic resource] determination of ethylene thiourea (ETU) in water using gas chromatography with a nitrogen-phosphorus detector /D.J. Munch ... [and others]Rev. 1.0.Cincinnati, Ohio :Environmental Monitoring Systems Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,[1992]1 online resource (22 unnumbered pages) illustrationsTitle from PDF title screen (EPA, viewed Sept. 7, 2010)."December 1992.""EPA 600/R-93/042."Includes bibliographical references.Method 509 WaterPollutionUnited StatesMeasurementDrinking waterContaminationUnited StatesMeasurementWaterPollutionMeasurement.Drinking waterContaminationMeasurement.Munch D. J(David J.)1405923Environmental Monitoring Systems Laboratory (Cincinnati, Ohio)GPOGPOGPOBOOK9910699653703321Method 5093483462UNINA