nominal dimension การใช้

• The geometric multipliers are generated by making small deltas to the nominal dimensions.
• Early standards called for green rough lumber to be of full nominal dimension when dry.
• See dimensional lumber for a full discussion of the relationship of actual and nominal dimensions.
• Typically, that rough cut is smaller than the nominal dimensions because modern technology makes it possible and it uses the logs more efficiently.
• And ANSI / ASME B89.1 . 9M, which defines both absolute deviations from nominal dimensions and parallelism limits as criteria for grade determination.
• Historically, the nominal dimensions were the size of the green ( not dried ), rough ( unfinished ) boards that eventually became smaller finished lumber through drying and planing ( to smooth the wood ).
• AGMA is accredited by the American National Standards Institute ( ANSI ) to write all U . S . standards on gearing, including terminology, nominal dimensions, tolerances, and tools for manufacturing and control.
• The actual dimensions of pipe are usually not the nominal dimensions : A 1-inch pipe will not actually measure 1 inch in either outside or inside diameter, whereas many types of tubing are specified by actual inside diameter, outside diameter, or wall thickness.