This Standard sets out the basic principles of technical drawing practice.

Section 1 sets out abbreviations.

Section 2 specifies materials, sizes, and layout of drawing sheets.

Section 3 specifies the types and minimum thicknesses of lines to be used and shows typical examples of their application.

Section 4 sets out the requirements for distinct uniform letters, numerals, and symbols.

Section 5 sets out recommended scales and their application.

Section 6 sets out methods of projection and of indication of the various views of an object.

Section 7 sets out methods of indicating section and provides information on conventions used in sectioning.

Section 8 sets out recommendations for dimensioning including size and geometry tolerancing.

Section 9 specifies conventions used fothr e representation of components and repetitive features of components.

Appendices provide information on the various projection methods, geometry tolerancing and comparison with other Standards.

NOTE: All drawings in this Standard are drawn in third angle projection unless otherwise stated.