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Colorimetric Determination of Nitrate Plus Nitrite ... - USGS
Water by Enzymatic Reduction, Automated Discrete Analyzer Methods Chapter 8 Section B, Methods of the National Water Quality Laboratory Book 5, Laboratory Analysis U.S. Department of the Interior U.S. Geological Survey Techniques and Methods 5–B8
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Status of Groundwater Levels and Storage Volume …
pubs.usgs.govvolume in the Equus Beds aquifer near Wichita, south-central Kansas, predevelopment to winter 2014 ...
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pubs.usgs.govGems are named for their color, type locality, outstanding physical property, or persons. The most popular gem cuts are the cabochon, rose, brilliant, step, and mixed. The carat, one-fifth of a gram or 200 milligrams, is the unit of weight measure ... PRECIOUS GEMS. GEM STONES OF THE UNITED STATES. GEM STONES OF THE UNITED STATES. GEM STONES ...
U.S. Department of the Interior U.S. Geological Survey ...
pubs.usgs.govU.S. Department of the Interior U.S. Geological Survey Natural Gemstones Searching for gemstones in the United States is a popular recreational activity for collectors and hobbyists ... Gems, when present at all, tend to be scat tered sparsely throughout a large body of
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assets.nexperia.com2002 Feb 27 3 NXP Semiconductors Product data sheet Voltage regulator diodes BZX79 series IR reverse current BZX79-B/C2V4 VR = 1 V 50 μA BZX79-B/C2V7 VR = 1 V 20 μA BZX79-B/C3V0 VR = 1 V 10 μA BZX79-B/C3V3 VR = 1 V 5 μA BZX79-B/C3V6 VR = 1 V 5 μA BZX79-B/C3V9 VR = 1 V 3 μA BZX79-B/C4V3 VR = 1 V 3 μA BZX79-B/C4V7 VR = 2 V 3 μA BZX79 …