SHARE WITH FRIENDS:
What is a benchmark?
We know that in the standardization of instruments used to measure weight, standards of different exact masses are used. I wonder how these standards are standardized? Of course with a standard. Currently, there are standards for units in the 7 international system of units, which are stored in SEVR, France.
In the photo you can see the standard for kilograms.
📊@jahon_statistikalar