Showing 1 - 12 results of 12 for search '"United States."', query time: 0.19s Refine Results
  1. 1
    Quality-assurance results for field pH and specific-conductance measurements, and for laboratory analysis, National Atmospheric Deposition Program and National Trends Network--January 1980-September 1984 /
    Published 1986
    Subjects: “...Precipitation (Meteorology) United States Analysis....”
    Government Document Book
  2. 2
    Precision and bias of selected analytes reported by the National Atmospheric Deposition Program and National Trends Network : 1983 and January 1980 through September 1984 /
    by Schroder, L. J.
    Published 1985
    Subjects: “...Acid deposition United States....”
    Government Document Book
  3. 3
    Results of external quality-assurance program for the National Atmospheric Deposition Program and National Trends Network during 1985 /
    by Brooks, Myron H.
    Published 1988
    Subjects: “...Quality assurance United States....”
    Government Document Book
  4. 4
    Summary of the National Atmospheric Deposition Program/National Trends Network intersite-comparison program, November 1978-November 1989 /
    by Gordon, J. D.
    Published 1991
    Subjects: “...Acid precipitation (Meteorology) United States Measurement....”
    Government Document Book
  5. 5
    Stability of nitrate-ion concentrations in simulated deposition samples used for quality-assurance activities by the U.S. Geological Survey /
    by Willoughby, Timothy C.
    Published 1989
    Subjects: “...Acid deposition United States....”
    Government Document Book
  6. 6
    USGS tracks acid rain /
    by Gordon, J. D.
    Published 1995
    Subjects: “...Acid deposition United States....”
    Get full text
    OCLC Digital Archive
    Government Document eBook
  7. 7
    Bias and precision of selected analytes reported by the National Atmospheric Deposition Program and National Trends Network, 1984 /
    by Brooks, Myron H.
    Published 1987
    Subjects: “...Water quality United States....”
    Government Document Book
  8. 8
    Summary of the U.S. Geological Survey National Field Quality Assurance Program from 1979 through 1997 /
    by Stanley, Daniel L.
    Published 1998
    Subjects: “...Water quality United States Measurement Quality control....”
    Government Document Microform Book
  9. 9
    Guidelines for preparing a quality assurance plan for district offices of the U.S. Geological Survey /
    by Schroder, L. J.
    Published 1992
    Subjects: “...Quality assurance United States....”
    Government Document Microform Book
  10. 10
    Contamination studies and testing protocol for polyethylene bottles /
    by Schroder, L. J.
    Published 1980
    Subjects: “...Trace elements in water United States Experiments....”
    Government Document Book
  11. 11
    Precision of the measurement of pH and specific conductance at National Atmospheric Deposition Program monitoring sites, October 1981 - November 1983 /
    by Schroder, L. J.
    Published 1985
    Subjects: “...Hydrogen-ion concentration Environmental aspects United States....”
    Government Document Book
  12. 12
    External quality-assurance results for the National Atmospheric Deposition Program and the National Trends Network during 1987 /
    by See, Randolph B.
    Published 1989
    Subjects: “...Acid deposition United States Testing....”
    Government Document Book
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