Material's own size
A substance's own quantity is a physical quantity that describes a substance's property and can therefore be assigned to a pure substance and can also be tabulated for this.
If a substance's own quantity is independent of factors other than the type of substance , it is also referred to as a substance constant ; this applies in particular to all molar and specific intensive quantities of state of pure substances.
The counterpart to a substance's own quantity is a native quantity .