Key Concepts About Identifying Laboratory Methods and CVs and their File Locations

General and specific laboratory information is available for each survey cycle. The method used to measure any given analyte, or the precision of a method may change over time. As a result, data users will find it important to review the information on these laboratory characteristics. The Laboratory Procedure manuals on the NHANES website provide the laboratory method and CV for each environmental chemical measured, as well as details on the laboratory performance, including:


Info iconWhen analyzing environmental chemical data, review the laboratory methods and CVs for each survey cycle to be analyzed.



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