Information AboutIso 216 |
| CATEGORIES ABOUT ISO 216 | |
| din standards | |
| iso standards | |
| #00216 | |
| stationery | |
| metrication | |
B SERIES The B series formats are Geometric Mean s between the A series format with the same number and the A series format with one lower number. For example, B1 is a geometric mean between A1 and A0. The sides of B0 are 1 m to m. There is also an incompatible Japanese B series defined by the JIS . The lengths of JIS B series paper are approximately 1.22 times those of A-series paper. C SERIES The C series formats are geometric means between the B series format with the same number and the A series format with the same number, (e.g., C2 is the geometric mean between B2 and A2). The C series formats are used mainly for envelopes. An A4 page will fit into a C4 envelope. C series envelopes follow the same ratio principle as the A series pages. For example, if an A4 page is folded in half so that it is A5 in size, it will fit into a C5 envelope (which will be the same size as a C4 envelope folded in half). TOLERANCES The tolerances specified in the standard are
A, B, C COMPARISON APPLICATION Before the adoption of ISO 216, many different paper formats were used internationally. These formats did not fit into a coherent system and were defined in terms of non-metric units. The ISO 216 formats are organized around the ratio ; two sheets next to each other together have the same ratio, sideways. This simplifies copying two A4 sheets in reduced size onto one A4 sheet, copying an A4 sheet in magnified size on an A3 sheet, or copying half an A4 sheet in magnified size on an A4 sheet. The principal countries not generally using the ISO paper sizes are the United States and Canada , which use the Letter, Legal And Executive System . (Canada uses a P-series of sizes, which are the US paper sizes rounded to metric dimensions.) .) EXTERNAL LINKS
|
|
|