(Superseding IS 11667 : 1991, IS 11669 : 1986).

New Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 1) which is identical with ISO 129-1 : 2018 ‘Technical product documentation (TPD) — Presentation of dimensions and tolerances — Part 1: General principles’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards after the draft finalized by Drawings Sectional Committee had been approved by the Production and General Engineering Division Council.