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ASME Y14.1-2020
Drawing Sheet Size and Format
This Standard defines decimal inch sheet sizes and formats for engineering drawings. Standardization of drawing sizes and the uniform location of format features on drawing forms provides definite advantages in readability, handling, filing, and reproduction. In using drawings made by other organizations, an advantage is gained when like items of information are in the same location on all drawings, and when uniformity of form and language is applied in making information entries. Revision information and dates are of particular importance to users of drawings and should be located and expressed uniformly on all engineering drawings. The widespread use and exchange of reduced-size copies of drawings both within and between organizations emphasizes the importance of standardization of drawing size and format.
American Society of Mechanical Engineers [asme]