Open-File Report 2006–1350

U.S. GEOLOGICAL SURVEY
Open-File Report 2006–1350

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Conversion Factors, Datums, and Abbreviations and Acronyms

Conversion Factors

Multiply By To obtain
centimeter (cm) 0.3937 inch
gram (g) 0.03527 ounce, avoirdupois
square kilometer (km2) 0.38611 square mile
kilogram per day 0.0010 metric ton per day
kilometer (km) 0.6214 mile
kilometer (km) 0.5400 mile, nautical
liter (L) 61.02 cubic inch
liter (L) 0.2642 gallon
liter (L) 33.82 ounce, fluid
liter (L) 2.113 pint
liter (L) 1.057 quart
milliliter (mL) 0.00026 milliliter
millimeter (mm) 0.03937 inch
meter (m) 1.094 yard (yd)
square centimeter (cm2) 0.1550 square inch
square meter (m2) 10.76 square foot

Temperature in degrees Celsius (°C) may be converted to degrees Fahrenheit (°F) as follows:

°F=(1.8×°C)+32

Temperature in degrees Fahrenheit (°F) may be converted to degrees Celsius (°C) as follows:

°C=(°F-32)/1.8

Concentrations of chemical constituents in water are given either in milligrams per liter (mg/L) or micrograms per liter (µg/L).

Datums

Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29).

Horizontal coordinate information is referenced to the North American Datum of 1927 (NAD27).

Abbreviations and Acronyms

Abbreviation or acronym Meaning
AAE Alkali and alkaline earth
AVS Acid volatile sulfide
CERC (USGS) USGS Columbia Environmental Research Center
DI de-ionized water
HPDE high density polyethylene
IAEA International Atomic Energy Association
ICP-MS inductively coupled plasma-mass spectrometry
ILOD instrumental limit of detection
L&A lanthanide and actinide
LOI loss on ignition
NIST National Institute of Science and Technology
NRCC National Research Council of Canada
RPD relative percent difference
rpm revolutions per minute
SRM standard reference material
USGS U.S. Geological Survey

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