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IEVref: | 113-03-07 | ID: | |

Language: | en | Status: Standard | |

Term: | mass density | ||

Synonym1: | density [Preferred] | ||

Synonym2: | volumic mass [Preferred] | ||

Synonym3: | |||

Symbol: | ρ
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Definition: | at a given point within a three-dimensional domain of quasi-infinitesimal volume dV, scalar quantity equal to the mass dm within the domain divided by the volume dV, thus ρ = dm/dVNOTE 1 Mass density is an intensive quantity describing a local property of a substance. NOTE 2 The concept of mass density may also be applied to the mass NOTE 3 The coherent SI unit of mass density is kilogram per cubic metre, kg/m | ||

Publication date: | 2011-04 | ||

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Internal notes: | 2017-06-02: Cleanup - Remove Attached Image 113-03-07en.gif | ||

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NOTE 1 Mass density is an intensive quantity describing a local property of a substance.

NOTE 2 The concept of mass density may also be applied to the mass *m* in a domain D with volume *V*, leading to the average density ${\rho}_{\text{av}}=\frac{m}{V}=\frac{1}{V}\underset{\text{D}}{\int}\rho dV$.

NOTE 3 The coherent SI unit of mass density is kilogram per cubic metre, kg/m^{3}. Other units are tonne per cubic metre, t/m^{3} (1 t/m^{3} = 1 000 kg/m^{3} = 1 g/cm^{3}), and kilogram per litre, kg/l (1 kg/l = 1 000 kg/m^{3}).