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You searched for “standard”
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Developing Educational Standards, an annotated list of Internet sites
A comprehensive list of links to US websites that provided educational standards and curriculum materials and frameworks.
National Institute of Standards and Technology
A very wide-ranging site, with sections for industry, researchers, media, general public and children, explaining how measurements and standards are developed and applied. In the 'general public' ...
US National Institute of Standards and Technology
A reference site from the US National Institute of Standards and Technology linking to their nanotechnology, biophysics and quantum information research, and to the Official US time.
National Physical Laboratory
In its role as the UK?s national standards laboratory, NPL maintains the nation's standards for most physical measurements, including time, length, mass, density and force.
Standard Deviation
Definition of standard deviation, with links to related definitions.
Standard Deviation
A page explanation of standard deviation that includes examples.
Measuring Light
An introduction to the standards of measurement for light.
US National Institute of Standards and Technology constants page
The fundamental physical constants are listed along with their uncertainty, including older and non-SI values.
NPL Beginners Guide to Measurement - Mass
How do you define a kilogram? An introduction to the standards set for mass measurement.
NPL Beginners Guides to Measurement - Ionising Radiation
An introduction to ionising radiation and the measurement standards involved.



