ASME Y14.3 - Orthographic and Pictorial ViewsReference2012
This Standard establishes the requirements for creating orthographic, and pictorial views on engineering drawing graphic sheets and in models. View requirements are generally the same regardless of how they are created. Specific requirements that are applicable only to constructed or to saved views are defined throughout the standard.

This standard is a revision of ASME Y14.3-2003 and consolidation of ASME Y14.4-1989(R2004).

Orthographic View
An orthographic view is the figure outlined upon the projection plane by means of the system of orthographic projection. Orthographic views may be constructed, or they may be saved views that are automatically gen-erated from models or design models. Orthographic view requirements apply equally to constructed and automatically generated views unless exception is stated.