1.44 | base quantity | ||
Quantity in a conventionally chosen subset of a given system of quantities, where no subset quantity can be expressed in terms of the others. | |||
Note 1: | The subset mentioned in the definition is termed the “set of base quantities”. | ||
Example: | The set of base quantities in the International System of Quantities (ISQ). | ||
Note 2: | Base quantities are referred to as being mutually independent since a base quantity cannot be expressed as a product of powers of the other base quantities. | ||
Note 3: | ‘Number of entities’ can be regarded as a base quantity in any system of quantities. | ||
Source: [VIM 1.4]. |
1.44 | base quantity | ||
Quantity in a conventionally chosen subset of a given system of quantities, where no subset quantity can be expressed in terms of the others. | |||
Note 1: | The subset mentioned in the definition is termed the “set of base quantities”. | ||
Example: | The set of base quantities in the International System of Quantities (ISQ). | ||
Note 2: | Base quantities are referred to as being mutually independent since a base quantity cannot be expressed as a product of powers of the other base quantities. | ||
Note 3: | ‘Number of entities’ can be regarded as a base quantity in any system of quantities. | ||
Source: [VIM 1.4]. |