As 1100.101 1992 Technical Drawing General Principles.pdf -

This part of AS 1100 sets out the basic conventions, layout, and drawing practices for technical drawings in engineering, architecture, and related fields. It aims to ensure drawings are clear, uniform, and unambiguous across industries.

Note: Superseded by AS 1100.101–2018 (and later ISO 8015-based standards), but the 1992 version remains a key reference for legacy drawings and many local drafting courses.

This is the most referenced section of the standard. The PDF specifies 15 different basic line types, but the 'Big Four' you must memorize are: AS 1100.101 1992 Technical drawing General principles.pdf

The standard defines three main categories of scale:

You will rarely see a scale like 1:17.5 in a compliant drawing. This part of AS 1100 sets out the

The standard mandates the use of Third Angle Projection as the default for Australia. This is critical. In the US and Australia, we use Third Angle. In Europe, they use First Angle.

The symbol for Third Angle projection (a truncated cone inside a trapezoid) must appear on every drawing sheet title block per AS 1100.101. Note: Superseded by AS 1100

Lines are the "vocabulary" of technical drawing. AS 1100.101 defines specific line types based on line thickness and style.