EN ISO 128-3:2022

Technical product documentation (TPD) - General principles of representation - Part 3: Views, sections and cuts (ISO 128-3:2022)

This document specifies the general principles for presenting views, sections and cuts applicable to various kinds of technical drawings (e.g. mechanical, electrical, architectural, civil engineering), following the orthographic projection methods specified in ISO 5456-2. Views and sections for shipbuilding technical drawings are discussed in ISO 128-15. Views and sections for 3D models are discussed in ISO 16792.
Attention has also been given in this document to the requirements of reproduction, including microcopying in accordance with ISO 6428.

Technische Produktdokumentation (TPD) - Allgemeine Grundlagen der Darstellung - Teil 3: Ansichten, Schnitte und Schnittansichten (ISO 128-3:2022)

Dieses Dokument legt die allgemeinen Grundlagen zur Darstellung von Ansichten, Schnitten und Schnittansich
ten fest, die für verschiedene Arten von technischen Zeichnungen anzuwenden sind (z.B. Mechanik, Elektrik, Architektur, Tiefbau), wobei die in ISO5456-2 festgelegten orthogonalen Projektionsmethoden befolgt werden. Ansichten und Schnitte in technischen Zeichnungen des Schiffbaus sind Gegenstand von ISO128-15. Ansichten und Schnitte in 3D-Modellen sind Gegenstand von ISO16792.
Die Anforderungen an die Vervielfältigung, einschließlich Mikroverfilmung nach ISO6428, wurden in diesem Dokument ebenfalls berücksichtigt.

Documentation technique de produits (TPD) - Principes généraux de représentation - Partie 3: Vues, sections et coupes (ISO 128-3:2022)

Le présent document établit les principes généraux de représentation des vues, des sections et des coupes applicables aux différents types de dessins techniques (par exemple génie mécanique, génie électrique, génie architectural, génie civil) suivant les méthodes de projection orthographique, spécifiées dans l'ISO 5456-2. Les vues et sections pour les dessins techniques de construction navale sont discutées dans l’ISO 128-15. Les vues et sections pour les modèles 3D sont discutées dans l’ISO 16792.
Les spécifications du présent document ont été établies en tenant compte des exigences de reproduction, y compris celles de la micrographie, conformément à l'ISO 6428.

Tehnična dokumentacija izdelkov - Splošna načela prikazovanja - 3. del: Pogledi, prerezi in odrezi (ISO 128-3:2022)

Ta dokument določa splošna načela za predstavitev pogledov, prerezov in odrezov, ki se uporabljajo za različne tehnične risbe (npr. v strojništvu, elektrotehniki, arhitekturi, gradbeništvu) v skladu z metodami ortografske projekcije, določenimi v standardu ISO 5456-2. Pogledi in prerezi za tehnične risbe v ladjedelništvu so obravnavani v standardu ISO 128-15. Pogledi in prerezi za 3D-modele so obravnavani v standardu ISO 16792. Dokument obravnava tudi zahteve za reproduciranje, vključno z mikrokopiranjem v skladu s standardom ISO 6428.

General Information

• Status: Published
• Publication Date: 13-Sep-2022
• ICS: 01.100.01 - Technical drawings in general
• Technical Committee: CEN/SS F01 - Technical drawings
• Drafting Committee: CEN/SS F01 - Technical drawings
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 14-Sep-2022
• Completion Date: 14-Sep-2022
• Ref Project: SIST EN ISO 128-3:2022 - Technical product documentation (TPD) - General principles of representation - Part 3: Views, sections and cuts (ISO 128-3:2022)

Relations

• Replaces: EN ISO 128-3:2020 - Technical product documentation - General principles of representation - Part 3: Views, sections and cuts (ISO 128-3:2020)
• Effective Date: 21-Sep-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2022
Nadomešča:
SIST EN ISO 128-3:2020
SIST ISO 128-43:2016
Tehnična dokumentacija izdelkov - Splošna načela prikazovanja - 3. del: Pogledi,
prerezi in odrezi (ISO 128-3:2022)
Technical product documentation (TPD) - General principles of representation - Part 3:
Views, sections and cuts (ISO 128-3:2022)
Technische Produktdokumentation (TPD) - Allgemeine Grundlagen der Darstellung - Teil
3: Ansichten, Schnitte und Schnittansichten (ISO 128-3:2022)
Documentation technique de produits (TPD) - Principes généraux de représentation -
Partie 3: Vues, sections et coupes (ISO 128-3:2022)
Ta slovenski standard je istoveten z: EN ISO 128-3:2022
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 128-3
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2022
EUROPÄISCHE NORM
ICS 01.100.01 Supersedes EN ISO 128-3:2020
English Version
Technical product documentation (TPD) - General
principles of representation - Part 3: Views, sections and
cuts (ISO 128-3:2022)
Documentation technique de produits (TPD) - Technische Produktdokumentation (TPD) - Allgemeine
Principes généraux de représentation - Partie 3: Vues, Grundlagen der Darstellung - Teil 3: Ansichten,
sections et coupes (ISO 128-3:2022) Schnitte und Schnittansichten (ISO 128-3:2022)
This European Standard was approved by CEN on 13 August 2022.

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, Türkiye 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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 128-3:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 128-3:2022) has been prepared by Technical Committee ISO/TC 10 "Technical
product documentation" in collaboration with 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 March 2023, and conflicting national standards shall
be withdrawn at the latest by March 2023.
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.
This document supersedes EN ISO 128-3:2020.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 128-3:2022 has been approved by CEN as EN ISO 128-3:2022 without any modification.

INTERNATIONAL ISO
STANDARD 128-3
Second edition
2022-08
Technical product documentation
(TPD) — General principles of
representation —
Part 3:
Views, sections and cuts
Documentation technique de produits (TPD) — Principes généraux de
représentation —
Partie 3: Vues, sections et coupes
Reference number
ISO 128-3:2022(E)
ISO 128-3:2022(E)
© ISO 2022
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 128-3:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 S c op e . 1
2 Nor m at i ve r ef er enc e s . 1
3 Terms and definitions . 1
4 Basic conventions for views .2
4.1 G eneral information on views. 2
4.2 C hoice of views . 3
4 . 3 P a r t i a l v iew s . 3
4.4 S implified view of symmetrical parts . 4
4.5 F irst-angle projection method . 4
4.6 F irst-angle projection method views . 4
4.7 F irst-angle projection graphical symbol . 5
4.8 Third-angle projection method . 5
4.9 T hird-angle projection method views . 5
4.10 T hird-angle projection graphical symbol . 6
4.11 O ther projection methods . 6
4 .12 E n l a r g e d f e at u r e s . 6
5 Re ference indication for views and enlarged features . 7
5.1 G eneral . 7
5.2 D etails of the reference indication . 7
5.3 E xamples of indication . 8
6 G eneral information on cuts and sections . 9
6.1 General . 9
6.2 I ndication of cuts and sections . 9
6 . 2 .1 Cut t i n g pl a ne . 9
6.2.2 I dentification of the cutting plane . 9
6.2.3 I dentification of the cuts and sections . 9
6.2.4 R eference indication for cuts and sections . 10
6.3 S ections revolved in the relevant view . 11
6.4 C uts/sections of symmetrical parts .12
6 . 5 L o c a l c ut s/s e c t ion s .12
7 B asic conventions for representing areas on cuts and sections .13
7.1 G eneral information on cuts and sections . 13
7. 2 Hat c h i n g. 13
7.3 S hading or toning . 14
7.4 E xtra-wide continuous outlines . 15
7. 5 T h i n s e c t ion s . 15
7.6 T hin adjacent sections . 15
7.7 S pecific materials . 16
Annex A (normative) Graphical symbols .17
Annex B (informative) Former practices .20
Annex C (normative) Views on mechanical engineering technical drawings .22
Annex D (normative) Sections on mechanical engineering technical drawings .34
Annex E (normative) Projection methods in building technical drawings .39
Annex F (normative) Representation of views, sections and cuts on construction drawings .41
Bibliography .
...