Answer
Yes,the apparent increase in the mass of the copies of the international standard kilogram is of significant importance.
Work Step by Step
The national standard kilogram is gaining mass at an average rate of about 1micro grams per year when compared every 10 years or so to the standard international kilogram.
This is of great importance because this affects the precise nature of measurement in scientific experiments. The act of measuring is the same as the act of comparing to a standard, if the standard changes then all the measurements are also affected. .
