New Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 71) which is identical with ISO/TS 128-71 : 2010 ‘Technical product documentation (TPD) — General principles of presentation — Part 71: Simplified representation for mechanical engineering drawings’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Drawing Sectional Committee and approval of the Production and General Engineering Division Council.

This Indian Standard is published in several parts. The other parts in this series are:

Part 1 Introduction and index

Part 15 Presentation of shipbuilding drawings

Part 20 Basic conventions for lines

Part 21 Preparation of lines by CAD systems

Part 22 Basic conventions and applications for leader lines and reference lines

Part 23 Lines on construction drawings

Part 24 Lines on mechanical engineering drawings

Part 25 Lines on shipbuilding drawings

Part 30 Basic conventions for views

Part 34 Views on mechanical engineering drawings

Part 40 Basic conventions for cuts and sections

Part 43 Projection methods in building drawings

Part 44 Sections on mechanical engineering drawings

Part 50 Basic conventions for representing areas on cuts and sections

The text of ISO Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminologies and conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they should be read as ‘Indian Standard’.

b) Comma (,) has been used as a decimal marker, while in Indian Standards, the current practice is to use a point (.) as the decimal marker.