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: Pennyweight (troy)
Glossary: Units: Permeability: Grain Per Hour Per Square Foot Per Inch of Mercury (0°C)
Glossary: Units: Length: League (US, Naut.)
Glossary: Units: Length: Foot
Glossary: Units: Mass Moment of Inertia: Pound Mass-Square Inch
Glossary: Units: Power (Heat Flow): Watt
Glossary: Units: Mass: Assay Ton
Glossary: Units: Mass: Slug (geepound)
Glossary: Units: Energy: Kilojoule
Glossary: Units: Electric Charge Surface Density: Coulomb Per Square Centimeter
Glossary: Units: Permeability: Grain Per Hour Per Square Foot Per Inch of Mercury (0°C)
Glossary: Units: Length: League (US, Naut.)
Glossary: Units: Length: Foot
Glossary: Units: Mass Moment of Inertia: Pound Mass-Square Inch
Glossary: Units: Power (Heat Flow): Watt
Glossary: Units: Mass: Assay Ton
Glossary: Units: Mass: Slug (geepound)
Glossary: Units: Energy: Kilojoule
Glossary: Units: Electric Charge Surface Density: Coulomb Per Square Centimeter
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