title: Environmental Lead Proficiency Analytical Testing (ELPAT) Program September 1999.
authors.affiliation: HHS/PHS/CDC/NIOSH, Cincinnati, OH 45226, USA.
authors.forename: H A
authors.initials: HA
authors.lastname: Feng
authors.forename: P
authors.initials: P
authors.lastname: Schlecht
mesh_terms: D004391:Dust / Q000032:analysis; D004784:Environmental Monitoring / Q000592:standards*; D004785:Environmental Pollutants / Q000032:analysis*; D007854:Lead / Q000032:analysis* / Q000592:standards; D009314:National Institute for Occupational Safety and Health, U.S.; D012015:Reference Standards; D012989:Soil Pollutants / Q000032:analysis / Q000592:standards; D014481:United States
chemical_list: D004391:Dust; D004785:Environmental Pollutants; D012989:Soil Pollutants; D007854:Lead