scope:

This standard applies to product drawings (hereinafter called "drawings") released to the Engineering Change Procedures, and may also apply to the layout and package drawings.

It applies to cases where any letters and figures in the drawing are changed, added, deleted or re-generated.

PURPOSE

This standard aims at correctly conveying the contents of drawing revisions resulting from a variety of reasons, such as the quality improvement, productivity enhancement and cost and weight reduction, and keeping the reasons and history of drawing revision.