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**Part Per Billion**

**Part Per Billion (ppb)**is a unit in the category of

*Fraction*. It is also known as parts per billion. This unit is commonly used in the INT unit system. Part Per Billion (ppb) 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-009.

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 Hundred (pph, %), Part Per Hundred Million (pphm), Part Per Hundred Thousand (ppht), Part Per Million (ppm), Part Per Quadrillion (ppq), Part Per Tera (ppt), and Part Per Thousand (ppt).

**Additional Information**

N/A

**Related Glossary Pages**

Glossary: Units: Length: Pica

Glossary: Units: Length: Kilometer

Glossary: Units: Length: Nail (UK)

Glossary: Units: Mass Flow Rate: Slug Per Second

Glossary: Units: Force: A.u. of Force

Glossary: Units: Length: Yottameter

Glossary: Units: Data (Binary): Gigabinarybyte (gibibyte)

Glossary: Units: Force: Pound Force Foot Per Inch

Glossary: Units: Time: Microsecond

Glossary: Units: Mass: Pound (UK, Straw)

Glossary: Units: Length: Kilometer

Glossary: Units: Length: Nail (UK)

Glossary: Units: Mass Flow Rate: Slug Per Second

Glossary: Units: Force: A.u. of Force

Glossary: Units: Length: Yottameter

Glossary: Units: Data (Binary): Gigabinarybyte (gibibyte)

Glossary: Units: Force: Pound Force Foot Per Inch

Glossary: Units: Time: Microsecond

Glossary: Units: Mass: Pound (UK, Straw)

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