en.wikipedia.org/wiki/SI_base_unit

The International System of Units (SI) defines seven units of measure as a basic
set from which .... 16th CGPM (1979, Resolution 3; CR, 100), The candlepower,
which is based on the light emitted fro...

www.nist.gov/pml/wmd/metric/mass.cfm

Mar 30, 2011 ... The kilogram is the SI base unit of mass and is equal to the mass of the ... In 1999
, the 21st CGPM recommended that national measurement ...

physics.nist.gov/cuu/Units/units.html

The SI is founded on seven SI base units for seven base quantities assumed to
be ... 1 for quantities of dimension 1 such as mass fraction is generally omitted.

www.french-metrology.com/en/si/units-measurement.asp

Presentation of units of measurement and the International System of Units (SI):
base units of measurement and derived units, definitions, prefixes, abbreviations.
... kilogram (kg), The kilogram is the mass of the platinum-iridium prototype ...

chemwiki.ucdavis.edu/Core/Analytical_Chemistry/Quantifying_Nature/Units_of_Measure/SI_Units

Mass is usually measured by a sensitive balance machine. 1 kilograms = 2.205
lbs. (Remember that 1 kg = 1000 grams)

www.npl.co.uk/reference/measurement-units/si-base-units/the-kilogram

Oct 8, 2010 ... The kilogram is the International System of Units (SI) unit for mass. It is the only
remaining base unit to be defined by a physical object.

www.unc.edu/~rowlett/units/sipm.html

A Dictionary of Units of Measurement ... The International System of Units (SI) ...
the SI unit of force, the newton, is defined to be the force that accelerates a mass
...

hyperphysics.phy-astr.gsu.edu/hbase/mass.html

The usual symbol for mass is m and its SI unit is the kilogram. While the mass is
normally ... You can view the weight as a measure of the mass in kg times the
intensity of the gravity field, 9.8 Newtons/kg under standard conditions. Data can
be ...

www.athropolis.com/popup/c-metric.htm

DECIMALS in MEASUREMENT. Prefixes for units of length, volume, and mass in
the metric system: Prefix, Multiply by. milli-, 0.001 (1/1000). centi-, 0.01 (1/100).

www.mathsisfun.com/measure/metric-system.html

The metric system is a system of measuring based on the meter, kilogram and
second. ... (Correctly called "SI") ... kg, the kilogram for mass ... We can also
combine the meter, kilogram and second to make new Units of Measurement!