As 1100.101 1992 Technical Drawing General Principles.pdf -

This is a critical section that sets out the rules for placing dimensions and notes. It also introduces concepts of , a method for precisely specifying the allowable variation in a part's form and location.

The standard emphasizes the use of as the preferred method in Australia, although it also acknowledges First Angle Projection. Proper projection ensures that a 3D object is correctly interpreted in a 2D view. 4. Dimensioning and Tolerancing AS 1100.101 1992 Technical drawing General principles.pdf