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**Part Per Hundred Million**

**Part Per Hundred Million (pphm)**is a unit in the category of

*Fraction*. It is also known as parts per hundred million. This unit is commonly used in the INT unit system. Part Per Hundred Million (pphm) 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-008.

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 Thousand (ppht), Part Per Million (ppm), Part Per Quadrillion (ppq), Part Per Tera (ppt), and Part Per Thousand (ppt).

**Additional Information**

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**Related Glossary Pages**

Glossary: Units: Permeability Coefficient: Perm-Inch (23°C)

Glossary: Units: Volume: Cubic Meter

Glossary: Units: Length: A.u. of Length

Glossary: Units: Pressure: Kilogram Force Per Square Millimeter

Glossary: Units: Volume: Hectoliter

Glossary: Units: Power (Heat Flow): Kilowatt

Glossary: Units: Mass: Grain (apothecary)

Glossary: Units: Energy: Tce (tonne Coal Equivalent)

Glossary: Units: Area: Square Millimeter

Glossary: Units: Pressure: Kilopound Force Per Square Inch

Glossary: Units: Volume: Cubic Meter

Glossary: Units: Length: A.u. of Length

Glossary: Units: Pressure: Kilogram Force Per Square Millimeter

Glossary: Units: Volume: Hectoliter

Glossary: Units: Power (Heat Flow): Kilowatt

Glossary: Units: Mass: Grain (apothecary)

Glossary: Units: Energy: Tce (tonne Coal Equivalent)

Glossary: Units: Area: Square Millimeter

Glossary: Units: Pressure: Kilopound Force Per Square Inch

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