The 21st century is rightly considered the time of information technology. A huge amount of data is transmitted every day in the world.
A significant part of this quantity consists ofcomputer information 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 appropriate 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 systemmeasurements. The original paper sheet was accepted with an area equal to one square meter (A0). All other formats of sheets of such a 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 fully capturedniche, which is responsible for the production of posters, posters, flyers, as well as passports and envelopes. Paper sheets of this series are the least common in the modern world, as it is rarely used in business. Nevertheless, the 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.
Series C is designed for the production of envelopes,in which subsequently will be enclosed papers of the sizes of a series A. A 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 put in a C4 envelope, and that, in turn, in a denser folder B4.
North American Standard
Paper with such dimensions is not often found onterritory of the former USSR. The formats of sheets of this type are determined by the American National Standards Institute, better known by the abbreviation ANSI. However, in companies whose daily activities are connected with the 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 of the South American continent.
