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Data Quality Assurance - Laboratory duplicates

This dataset includes data quality assurance information concerning the Relative Percent Difference (RPD) of laboratory duplicates. No laboratory duplicate information exists for 2010. The formula for calculating relative percent difference is: ABS(2*[(A-B)/(A+B)]). An RPD of less the 10% is considered acceptable.

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Author(s) Nicole M Herman-Mercer orcid
Publication Date 2016
Beginning Date of Data 2009
Ending Date of Data present
Data Contact
Nicole Herman-Mercer
DOI http://dx.doi.org/10.5066/F77D2S7B
Citation Herman-Mercer, N.M., 2016, Data Quality Assurance - Laboratory duplicates: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F77D2S7B.
Metadata Contact
Nicole Herman-Mercer
Metadata Date 2020-08-31
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License http://www.usa.gov/publicdomain/label/1.0/
Harvest Source: ScienceBase
Harvest Date: 2024-02-24T09:44:24.901Z