Encyclopedia
Physical quantity
Physical quantity - one of the properties of a physical object (physical system, phenomenon or process), common in qualitative terms for many physical objects, but individual in quantitative terms for each of them
Source: "RECOMMENDATIONS ON INTERSTATE STANDARDIZATION. STATE SYSTEM FOR ENSURING THE UNIFORMITY OF MEASUREMENTS. METROLOGY. BASIC TERMS AND DEFINITIONS. РМГ 29-99"
(introduced by the Decree of the State Standard of Russia dated May 17, 2000 No. 139-st)