Instrumental drawings are based on a set on standards that have been globally agreed upon by the International Standards Organisation (ISO). These standards are then tailored to the specific needs of a country depending on such things as the adopted measuring system (metric or imperial), environmental conditions, manufacturing processes and developments in technology. The Australian Standard 1100 (more commonly referred to as the AS 1100), acts as a convention for all engineers, architects, designers, surveyors, pattern makers and other design disciplines to follow. This ensures that the visual communications, products and environments that they design can be manufactured by anyone around the world. These standards include everything from the paper size that is used, the pens or pencils the lines are drawn with and even the type and total number of drawings that are required for any one part or assembly of parts.
The standards offered in the sub-menus of this section of the site are an interpreted and abridged version of the Australian Standards AS 1100.101-1992 Technical Drawing – General Principles. Although the AS 1100 covers all disciplines of technical drawing, especially engineering, some design disciplines such as architecture, apply additional conventions that tailor the technical illustrations and notations to industry requirements. These standards are available separately from SAI global's website.