Iso 128

Overview
Since 2003 the ISO 128 standard contains twelve parts, which had been initiated between 1996 and 2003. It starts with a summary of the general rules for the execution of technical drawings,as well as presenting the structure. Further it describes basic conventions for lines, views, cuts and Sections, and different types of engineering drawings, such for mechanical engineering andconstruction in architectural, civil engineering, shipbuilding etc. It is applicable to both manual and computer-based drawings, but it is not applicable to three-dimensional CAD models.[1]
The ISO 128replaced the previous DIN 6 standard about drawings, projections and views, which was first published in 1922, and later updated in 1950 and 1968. The ISO 128 itself was first published in 1982,contained 15 pages and "specified the general principles of presentation to be applied to technical drawings following the orthographic projection methods".[2] Several parts of this standard have beenupdated by individual parts and eventually the last parts and the whole standard as a whole has been withdrawn by the ISO in 2001.
[edit] Composition of the ISO 128
The 12 parts of the ISO 128 standardare:
* ISO 128-1:2003. Technical drawings—General principles of presentation—Part 1: Introduction and index
* ISO 128-20:1996 Technical drawings—General principles of presentation—Part 20: Basicconventions for lines
* ISO 128-21:1997 Technical drawings—General principles of presentation—Part 21: Preparation of lines by CAD systems
* ISO 128-22:1999 Technical drawings—Generalprinciples of presentation—Part 22: Basic conventions and applications for leader lines and reference lines
* ISO 128-23:1999 Technical drawings—General principles of presentation—Part 23: Lines onconstruction drawings
* ISO 128-24:1999 Technical drawings—General principles of presentation—Part 24: Lines on mechanical engineering drawings
* ISO 128-25:1999 Technical drawings—General...