EN ISO 128-1:2020

SLOVENSKI STANDARD
01-september-2020
Tehnična dokumentacija izdelkov - Splošna načela predstavitve - 1. del: Uvod in
temeljne zahteve (ISO 128-1:2020)
Technical product documentation (TPD) - General principles of representation - Part 1:
Introduction and fundamental requirements (ISO 128-1:2020)
Technische Produktdokumentation (TPD) - Allgemeine Grundlagen der Darstellung - Teil
1: Einleitung und grundlegende Anforderungen (ISO 128-1:2020)
Documentation technique de produits (TPD) - Principes généraux de représentation -
Partie 1: Introduction et exigences fondamentales (ISO 128-1:2020)
Ta slovenski standard je istoveten z: EN ISO 128-1:2020
ICS:
01.110 Tehnična dokumentacija za Technical product
izdelke documentation
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 128-1
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2020
EUROPÄISCHE NORM
ICS 01.100.01
English Version
Technical product documentation (TPD) - General
principles of representation - Part 1: Introduction and
fundamental requirements (ISO 128-1:2020)
Documentation technique de produits (TPD) - Technische Produktdokumentation (TPD) - Allgemeine
Principes généraux de représentation - Partie 1: Grundlagen der Darstellung - Teil 1: Einleitung und
Introduction et exigences fondamentales (ISO 128- grundlegende Anforderungen (ISO 128-1:2020)
1:2020)
This European Standard was approved by CEN on 18 May 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 128-1:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 128-1:2020) has been prepared by Technical Committee ISO/TC 10 "Technical
product documentation" in collaboration with Technical Committee CEN/SS F01 “Technical drawings”
the secretariat of which is held by CCMC.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by December 2020, and conflicting national standards
shall be withdrawn at the latest by December 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 128-1:2020 has been approved by CEN as EN ISO 128-1:2020 without any modification.

INTERNATIONAL ISO
STANDARD 128-1
Second edition
2020-05
Technical product documentation
(TPD) — General principles of
representation —
Part 1:
Introduction and fundamental
requirements
Documentation technique de produits (TPD) — Principes généraux de
représentation —
Partie 1: Introduction et exigences fondamentales
Reference number
ISO 128-1:2020(E)
©
ISO 2020
ISO 128-1:2020(E)
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 128-1:2020(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Arrangement of the ISO 128 series . 3
5 Fundamental requirements . 3
6 Basic entities of technical drawings . 4
6.1 General . 4
6.2 Mechanical engineering . 4
6.3 Construction engineering . 5
6.4 Shipbuilding . 5
6.5 Materials and processes . 5
7 Using the ISO 128 series . 5
Bibliography . 6
ISO 128-1:2020(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 10, Technical product documentation, in
collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/SS
F01, Technical drawings, in accordance with the Agreement on technical cooperation between ISO and
CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 128-1:2003), which has been technically
revised. The main changes to the previous edition are as follows:
— the index has been moved to ISO 128-100;
— references have been updated to point to the revised parts of the ISO 128 series.
A list of all parts in the ISO 128 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved

INTERNATIONAL STANDARD ISO 128-1:2020(E)
Technical product documentation (TPD) — General
principles of representation —
Part 1:
Introduction and fundamental requirements
1 Scope
This document gives general rules for the execution of technical drawings (2D and 3D), as well
as presenting the structure of the other parts of the ISO 128 series. This document is applicable to
technical drawing in the fields of mechanical engineering, construction, architecture and shipbuilding.
It is applicable to both manual and computer-based technical drawings.
For the purpose of this document the term “technical drawing” shall be interpreted in the broadest
possible sense, encompassing the total package of documentation specifying the product (workpiece,
subassembly, assembly).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 129 (all parts), Technical product documentation (TPD) — Presentation of dimensions and tolerances
ISO 286-1, Geometrical product specifications (GPS) — ISO code system for tolerances on linear sizes —
Part 1: Basis of tolerances, deviations and fits
ISO 1101, Geometrical product specifications (GPS) — Geometrical tolerancing — Tolerances of form,
orientation, location and run-out
ISO 1302, Geometrical Product Specifications (GPS) — Indication of surface texture in technical product
documentation
ISO 2538-2, Geometrical product specifications (GPS) — Wedges — Part 2: Dimensioning and tolerancing
ISO 2553, Welding and allied processes — Symbolic representation on drawings — Welded joints
ISO 2692, Geometrical Product Specifications (GPS) — Geometrical tolerancing — Maximum material
requirement (MMR), least material requirement (LMR) and reciprocity requirement (RPR)
ISO 3040, Geometrical product specifications (GPS) — Dimensioning and tolerancing — Cones
ISO 3098-1, Technical product documentation — Lettering — Part 1: General requirements
ISO 5457, Technical product documentation — Sizes and layout of drawing sheets
ISO 5458, Geometrical product specifications (GPS) — Geometrical tolerancing — Pattern and combined
geometrical specification
ISO 5459, Geometrical product specifications (GPS) — Geometrical tolerancing — Datums and datum systems
ISO 6284, Construction drawings — Indication of limit deviations
ISO 6428, Technical drawings — Requirements for microcopying
ISO 128-1:2020(E)
ISO 6433,
...