Reorganizing the use of unit of mass standards

Conclusions

Despite the fact that since the establishment of the new copies and working standards of mass made of stainless steel type Kh18N9T only four years have passed, it is possible to draw conclusions on the great importance of the reorganization in the sphere of standard units of mass.

The advantages of the above reorganization consist of the following:

• 1. The necessity of using the basic USSR standard of mass for checking purposes has been greatly reduced. As a result, the basic standard will be preserved for a long time.

• 2. The stability of the mass of the working standards has been raised. The variations in the mass of the stainless steel working standards for one year's use amounts on an average to 0.02–0.03 mg as against variations in the mass of the old bronze standards amounting to 0.7 mg. This has made it possible to check working standards once every 2 years instead of every year.

• 3. The checking of working standards of mass has been simplified and at the same time its accuracy and reliability has been increased. The time required for checking has been reduced to 2/3–1/2 of the time formerly required.