Glossary » Units » Fraction » Part Per Million
Part Per Million (ppm) is a unit in the category of Fraction. It is also known as parts per million. This unit is commonly used in the INT unit system. Part Per Million (ppm) has a dimension of nil (fraction) where L is length, T is time, N is amount of substance, and I is electric current. It can be converted to the corresponding standard SI unit by multiplying its value by a factor of 1E-006.
Note that the seven base dimensions are M (Mass), L (Length), T (Time), Q (Temperature), N (Aamount of Substance), I (Electric Current), and J (Luminous Intensity).
Other units in the category of Fraction include Carat (karat) (ct, Kt), Part Per Billion (ppb), Part Per Hundred (pph, %), Part Per Hundred Million (pphm), Part Per Hundred Thousand (ppht), Part Per Quadrillion (ppq), Part Per Tera (ppt), and Part Per Thousand (ppt).
Additional Information
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Related Glossary Pages
Glossary: Units: Mass: Ounce (avoirdupois)
Glossary: Units: Energy: Cubic Centimeter-Atm
Glossary: Units: Velocity: Foot Per Second
Glossary: Units: Area: Hectare
Glossary: Units: Length: Ems (pica)
Glossary: Units: Length: Mile (nautical, UK, US)
Glossary: Units: Power (Heat Flow): Horsepower (electric)
Glossary: Units: Mass: Ounce (troy)
Glossary: Units: Volume Flow Rate: Cubic Yard Per Minute
Glossary: Units: Electric Potential: A.u. of Electric Potential
Glossary: Units: Energy: Cubic Centimeter-Atm
Glossary: Units: Velocity: Foot Per Second
Glossary: Units: Area: Hectare
Glossary: Units: Length: Ems (pica)
Glossary: Units: Length: Mile (nautical, UK, US)
Glossary: Units: Power (Heat Flow): Horsepower (electric)
Glossary: Units: Mass: Ounce (troy)
Glossary: Units: Volume Flow Rate: Cubic Yard Per Minute
Glossary: Units: Electric Potential: A.u. of Electric Potential
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