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ORDER OF THE GOVERNMENT OF THE RUSSIAN FEDERATION

of October 31, 2009 No. 879

About approval of the Regulations on units of the sizes allowed to application in the Russian Federation

(In edition of the Order of the Government of the Russian Federation of 15.08.2015 No. 847)

According to article 6 of the Federal law "About Ensuring Unity of Measurements" Government of the Russian Federation decides:

Approve the enclosed Regulations on units of the sizes allowed to application in the Russian Federation.

Russian Prime Minister

V. V. Putin

Approved by the Order of the Government of the Russian Federation of October 31, 2009 No. 879

Regulations on units of the sizes allowed to application in the Russian Federation

I. General provisions

1. This Provision establishes units of sizes allowed to application in the Russian Federation, their names and designation, and also the rule of their application and writing.

2. In the Russian Federation the units of sizes of the International System of Units (SI) accepted by the General conference on measures and scales and recommended for application of legislative metrology by the International organization are applied.

3. The concepts used in this Provision mean the following:

"size" - property of object, phenomenon or process which can be distinguishable qualitatively and determined quantitatively;

"stand-alone unit of size" - the size unit which is not entering the accepted system of units;

"size unit" - the fixed value of size which is accepted for unit of such size and is applied to quantitative expression of sizes, uniform with it;

"coherent unit of size" - derivative unit of size which represents the work of the main units built in degree with the proportionality coefficient equal 1;

"logarithmic unit of size" - logarithm of the dimensionless relation of size to the size of the same name accepted for initial;

"The International System of Units (SI)" - the system of units based on the International system of sizes;

"the main size" - the size which is conditionally accepted as the International system of sizes, independent of other sizes;

"the main SI" - unit of the main size in the International System of Units (SI);

"the relative size" - the dimensionless relation of size to the size of the same name accepted for initial;

"the derivative size" - the size determined through the main sizes of system;

"derivative SI" - unit of derivative size of the International System of Units (SI);

"system of units of the sizes SI" - set of the main and derivative SI, their decimal multiple and submultiple units, and also rules of their use.

II. Units of sizes allowed to application, their names and designation

4. In the Russian Federation the main SI, derivative SI and separate stand-alone units of sizes are allowed to application.

5. The main units of the International System of Units (SI) are given in appendix No. 1.

6. Derivative SI are formed through the main SI by mathematical rules and determined as the work of the main SI in the corresponding degrees. Separate derivative SI have special names and designations.

Derivative units of the International System of Units of the SI are given in appendix No. 2.

7. Stand-alone units of sizes are given in appendix No. 3. Relative and logarithmic units of sizes are given in appendix No. 4.

III. Rules of application of units of sizes

8. In the Russian Federation the multiple and submultiple units from the main SI, derivative SI and separate stand-alone units of sizes formed by means of decimal multipliers and prefixes are allowed to application.

Decimal multipliers, prefixes and designations of prefixes for formation of multiple and submultiple units of sizes are given in appendix No. 5.

9. In legal acts of the Russian Federation in case of establishment of mandatory requirements designation of units of sizes with use of letters of the Russian alphabet is applied to sizes, measurements and indicators of observance of accuracy (further - the Russian designation of units of sizes).

10. In technical documentation (design, technological and program documentation, specifications, documents on standardization, instructions, manuals, managements and provisions), in methodical, scientific and technical and other documentation on products of different types, and also in scientific and technical printing editions (including textbooks and education guidances) it is applied international (with use of letters of the Latin or Greek alphabet) or the Russian designation of units of sizes.

Simultaneous application of the Russian and international designations of units of sizes is not allowed, except as specified, such units connected with explanation of application.

11. When specifying units of sizes on technical means, devices and measuring instruments it is allowed to apply the international designation of units of sizes along with the Russian designation of units of sizes.

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