Parts-per notation
Parts-per notation
Set of units to describe small values.
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Fluorescein
Synthetic organic compound used as dye and fluorescent tracer.
21%
Basis point
One hundredth of one percentage point.
8.3%
International System of Units
Modern form of the metric system.
6.1%
Engineering
Applied science and research.
4.6%
Per mille
Unit for parts per thousand.
4.1%
Molar mass
Mass per amount of substance.
2.9%
Science
Systematic endeavour to gain knowledge.
1.9%
Percentage
Number or ratio expressed as a fraction of 100.
0.96%
Unit of measurement
Quantity standard.
0.88%
10,000
Natural number.
0.8%
Readers come from
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Percent sign
Symbol for the fraction of a hundred.
7.5%
Argon
Chemical element with atomic number 18 (Ar).
5.6%
Per mille
Unit for parts per thousand.
4.9%
Permian–Triassic extinction event
Earth's most severe extinction event.
4.5%
Saline water
Water that contains a high concentration of dissolved salts.
3.7%
Basis point
One hundredth of one percentage point.
2.8%
Carbon dioxide in the atmosphere of Earth
Atmospheric constituent and greenhouse gas.
2.5%
Brackish water
Water with salinity between freshwater and seawater.
2.5%
Potassium-40
Radioactive isotope of potassium.
2.4%
Ozone layer
Region of the stratosphere.
2.3%