Paper size standards ISO
Paper ISO standard video aspect ratio page paper by the paper of all sizes will be at 1 : √2, or about 1 : 1.14 both when making a “half-fold” and then have the paper in the ratio the same, at 70.7% paper international standards of ISO, it will have together a total of 11 size short from 0 – 10 is divided into 3 patterns, including paper, A Series , B Series and C Series
Paper A Series (ISO 216)
Paper is A paper size standards known, and are most active which paper size the largest of A Series is the A0 size has an area equal to 1 square meter, and when divided in half to get A1 chasing the code to keep the higher the number, the increase will be small size down by paper of A Series, the smallest is the paper size, A10, which has a size of only 1×1.5 inches or compared to the stick figure card size is 1 inch.
Paper B Series (ISO 216)
Paper B paper that is familiar, less paper, A Series which can be used instead of paper A. commonly used in books (B5) poster passport envelope. by paper size B1 has the width and length between the paper A Series in various sizes which paper B we use the most is the size “B5”
Paper C Series (ISO 217)
Paper C commonly used is the size of the “envelope” due to the paper, C is larger than the paper of A Series, so it can be put on paper A and paper C is smaller than the paper B the same code, so it can be put on the envelope size C down in envelope B, the same code, so can put A4 paper into a C4 envelope, and also led the envelope C4 put into the envelope B4.