Example 1-3 shows some of the standards in the Y14 series. The Y14 series includes standards related to drawing applications such as drawing formats, line conventions, dimensioning and tolerancing, and revisions, and specialty applications such as rep- resenting screw threads, gears and splines, and castings and forgings. ASME Y14.5-2018 There are many other standards in the ASME Y14 series.The following lists the editions of the Y14.5 standard dating to 1973: ASME revises the Y14.5 standard approximately every 10 years. The ANSI Y14.5-1973 standard was revised from the USASI Y14.5-1966 standard.
The USASI Y14.5-1966 Dimen- sioning and Tolerancing for Engineering Drawings standard was based on earlier standards developed by different organizations, including the ASA Y14.5-1957 standard. Previous editions of the Y14.5 standard include standards designated by the American National Standards Institute (ANSI) and the organization that predated ANSI, the United States of America Standards Institute (USASI). As discussed earlier in this chapter, the ASME Y14.5 Dimensioning and Tolerancing standard specifies approved dimensioning and tolerancing practices for engineering drawings. Adoption of specific stan- dards is determined by a variety of operational and organizational considerations. ASME and ISO standards are distributed and used worldwide. 8 Geometric Dimensioning and Tolerancing Copyright Goodheart-Willcox Co., Inc.
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