GOST 2.105-95

Random Section of GOST 2.105-95

4.2.6 The list of allowed word abbreviations is established by GOST 2.316.

If a document has an adopted special system of word and item abbreviations, the list of accepted abbreviations located at the end of the document before the list of terms shall be provided.

4.2.7 Conventional letter symbols, images and signs shall comply with the existing legislation and state standards. Before designating a parameter in the document text, its explanation shall be provided, e.g. “Rupture strength”.

When it is necessary to use conventional designations, images and signs not established by the existing standards, they shall be explained in the text or the list of designations.

4.2.8 Standardized physical quantities, their titles and designations shall be used in the document in accordance with GOST 8.417.

Along with SI units, where necessary, units of previously used systems allowed for application shall be indicated in brackets. The usage of different systems of physical quantities designation in the same document is not allowed.

4.2.9 Numeric values of units with the indication of physical quantities and units of count shall be written down in numbers in the document text; and digits without the designation of physical quantities and units of count from one to nine – in words.

Examples

1 Conduct pressure testing of five pipes the length of each equal 5 m.

2 Select 15 pipes for pressure testing.

4.2.10 The unit of physical quantity of one and the same parameter within one document shall be permanent. If a text contains a number of figure values shown in one and the same unit of physical quantity, then it is shown only after the last figure value, e.g. 1.50; 1.75; 2.00 m.

4.2.11 If a text contains a range of figure values of physical quantities shown in one and the same unit of physical quantity, then the designation of physical quantity unit is made after the last figure value of the range.

Examples

1 From 1 to 5 mm.

2 From 10 to 100 kg.

3 From plus 10 to minus 40°С.

From plus 10 to plus 40°С.

It is not allowed to separate the unit of physical quantity from the figure value (transfer them to different lines or pages) except those units of physical quantities put in the type-written tables.

4.2.12 Combining the largest and smallest values of it is, phrase “shall be not more (not less) than” shall be used.

Combining allowable values of deviations from established norms, requirements, phrase “shall be not more (not less) than” shall be used.

E.g., weight ratio of sodium carbonate in technical soda ash shall be not less than 99.4%.

4.2.13 Figure values in a text shall be indicated with the degree of preciseness which is required for ensuring required properties of the product, and in this case the alignment of the number of symbols after a comma is performed in the row of values.

Rounding-off of figure values from the first, second, third etc. decimal digit for various standard sizes, brands etc. of products of the same title shall be the same. E.g., if the gradation of steel hot-rolled stripe thickness makes up 0.25 mm, then the whole row of stripe thicknesses shall be indicated with the same quantity of decimal signs, e.g. 1.50; 1.75; 2.00.

4.2.14 Fractions shall be shown as decimals except sizes in inches which shall be recorded down as 1/4»; 1/2» (but not as,  ).

When it is impossible to show a figure value in decimal fraction, then it is allowed to record it in the form of a simple fraction in one line with slant line, e.g., 5/32; (50А-4C)/(40В+20).