What are the sheet formats?

The 21st century is rightly considered the time of information technology. A huge amount of data is transmitted every day in the world.

Much of this amount consists of computer data and materials, but so far, in many cases, the use of paper carriers for the purposes described above is welcome. In this regard, international standards have been developed, which most fully describe all commonly used sheet sizes. Since each scrap of paper has strictly defined dimensions, the legislation has also developed the corresponding GOSTs, which specify all formats of sheets.

Concepts

Currently, there are two well-known systems that determine the paper size: international and North American standards. Each of them has its own characteristic features.

International Standard

It is based on the well-known metric system of measurements. The original was a paper sheet with an area equal to one square meter (A0). All other formats of sheets of a similar system were obtained by adding the so-called source code in half. After all, everyone knows that A1 is half as much as A0; A2 - twice inferior in size A1 and so on. Denote the length and width for each of the formats: A0 - length 1189 mm, width 841 mm; А1 - 841х594; А2 - 594х420; А3 - 420х297; А4 - 297х210; А5 - 210х148; A6 - 148x105.

It is also important to remember that the international standard (GOST "Sheet Formats") includes a number of series: A, B and C. Each of them is used in its field of human activity. For example, the A series is characterized by trimming sizes of various office papers. It is also widely used as the basis of office documentation; For the manufacture of white goods, as well as in the production of printed publications.

Forms of sheets of the B series are most completely occupied by the niche, which is responsible for the production of posters, posters, flyers, as well as passports and envelopes. The paper sheets of this series are the least widespread in the modern world, since they are rarely used in business. Nevertheless, sheet formats (GOST 2.301-63) B5 with dimensions of 176x250 mm can be met quite often, as they are used by publishing houses for printing books.

The C-series is designed for the production of envelopes into which the paper of the A-series sizes will be subsequently deposited. A special feature of this category is that the dimensions of the C-series sheet will be equal to the geometric mean of the paper sizes A and B of the same number. Thus, we get that the C4 sheet formats will be slightly larger than the dimensions of A4, but smaller than B4. This is done so that a paper document of A4 size can be enclosed in a C4 envelope, and that, in turn, in a denser folder B4.

North American Standard

Paper with such dimensions is infrequent in the territory of the former USSR. The formats of sheets of this type are determined by the American National Institute of Standards, better known by the abbreviation ANSI. However, in companies whose daily activities are connected with organizations of the American continent, you can sometimes see the Letter format. It is important to know that sheets of paper of similar sizes are state standards not only in the United States, but also in Mexico, Canada, the Philippines, and a number of countries in the South American continent.