EN ISO 3098-1:2015

Technical product documentation - Lettering - Part 1: General requirements (ISO 3098-1:2015)

ISO 3098-1:2015 specifies the general requirements for lettering, in accordance with the other parts of ISO 3098, to be used in technical product documentation (in particular on technical drawings). It includes basic conventions as well as rules for the application of lettering using the following techniques: free-hand lettering (by means of an underlaid "grid"); templates and manual lettering instruments; dry transfer systems; numerically controlled lettering and draughting systems.

Technische Produktdokumentation - Schriften - Teil 1: Grundregeln (ISO 3098-1:2015)

Documentation technique de produits - Écriture - Partie 1: Exigences générales (ISO 3098-1:2015)

L'ISO 3098-1:2015 fixe, en conformité avec les autres parties de l'ISO 3098, les exigences générales d'écriture devant être appliquées dans le domaine de la documentation technique de produits (en particulier aux dessins techniques). Elle comprend des principes conventionnels de base, ainsi que des règles relatives à l'écriture mettant en oeuvre les techniques suivantes: écriture à main levée (au moyen d'un quadrillage «caché en arrière-plan» - sorte de grille typomatique); gabarits de dessin et instruments pour écriture à la main; décalcomanies à sec; systèmes d'écriture et de dessin à commande numérique.

Tehnična dokumentacija izdelkov - Pisava - 1. del: Splošne zahteve (ISO 3098-1:2015)

Ta del standarda ISO 3098 določa splošne zahteve za pisavo, v skladu z drugimi deli standarda ISO 3098, ki se uporablja v tehnični dokumentaciji izdelkov (zlasti na tehničnih risbah). Vključuje osnovne konvencije in pravila za pisavo pri uporabi naslednjih tehnik:
a) prostoročno pisanje (s podlago iz »mreže«);
b) predloge in ročni instrumenti za pisanje;
c) suhi sistemi za prenos;
d) numerično krmiljeno pisanje in skicirni sistemi.

General Information

• Status: Published
• Publication Date: 03-Mar-2015
• Withdrawal Date: 29-Sep-2015
• ICS: 01.100.01 - Technical drawings in general
• ICS: 01.110 - Technical product documentation
• ICS: 01.140.10 - Writing and transliteration
• 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: 04-Mar-2015
• Completion Date: 04-Mar-2015
• Ref Project: SIST EN ISO 3098-1:2015 - Technical product documentation - Lettering - Part 1: General requirements (ISO 3098-1:2015)

Relations

• Replaces: EN ISO 3098-0:1997 - Technical product documentation - Lettering - Part 0: General requirements (ISO 3098-0:1997)
• Effective Date: 11-Mar-2015

Overview

EN ISO 3098-1:2015 - Technical product documentation - Lettering - Part 1: General requirements (ISO 3098-1:2015) is the CEN-endorsed European version of the ISO standard that defines the general rules for lettering used in technical product documentation, particularly technical drawings. It replaces EN ISO 3098-0:1997 and establishes conventions applicable to manual and machine-based lettering methods, including CAD/numerically controlled systems.

Key topics and technical requirements

• Scope and purpose: General requirements for lettering consistent with other parts of ISO 3098 (alphabets, diacritics, CAD application).
• Lettering techniques covered:
  • Free-hand lettering (with an underlaid grid)
  • Templates and manual lettering instruments
  • Dry transfer systems
  • Numerically controlled lettering and draughting (CAD) systems
• Legibility rules: Minimum character spacing of twice the line width; may be reduced to one line width for specific character pairs for visual effect (examples: LA, TV, Tr).
• Dimensions and nominal sizes: Letter height (h) defines nominal size. Standard nominal sizes: 1.8, 2.5, 3.5, 5, 7, 10, 14, 20 mm. Line widths and sizing rules reference ISO 128-20.
• Central line and layout: Central (imaginary) line is the datum for character construction and tooling; nominal size and spacing determine central line location.
• Lettering angle: Vertical (upright) or sloped to 75° from horizontal (right inclination).
• Lettering types: Defined types A, B and CAD-oriented CA/CB (vertical and sloped variants) with dimensional tables for x-height, tails, stems, spacing, line width.
• Additional rules: Suitability for common copying processes (diazo, microfilm, fax) and recommendation to interrupt underlining/overlining where letters have tails.

Applications and who uses this standard

EN ISO 3098-1 is essential for professionals involved in:

• Technical drafters and mechanical designers preparing engineering drawings
• CAD users and automation engineers implementing numerically controlled lettering
• Document control and quality assurance teams ensuring drawing consistency
• Technical illustrators, product documentation teams, and manufacturing engineers who rely on legible, standardized text on drawings and instruction sheets

Practical uses include setting up default CAD text styles, specifying drawing text sizes for manufacturing drawings, and ensuring legibility across copying and reproduction processes.

Related standards

• ISO 3098 series (other parts):
  • Part 2: Latin alphabet, numerals and marks
  • Part 3: Greek alphabet
  • Part 4: Diacritical and particular marks for Latin alphabet
  • Part 5: CAD lettering of Latin alphabet, numerals and marks
  • Part 6: Cyrillic alphabet
• ISO 128-20: Technical drawings - General principles of presentation - Basic conventions for lines

Keywords: technical product documentation, ISO 3098-1, lettering standard, CAD lettering, drawing text, lettering dimensions, line width, nominal size, technical drawings, drafting standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2015
1DGRPHãþD
SIST EN ISO 3098-0:1998
7HKQLþQDGRNXPHQWDFLMDL]GHONRY3LVDYDGHO6SORãQH]DKWHYH,62

Technical product documentation - Lettering - Part 1: General requirements (ISO 3098-
1:2015)
Technische Produktdokumentation - Schriften - Teil 1: Grundregeln (ISO 3098-1:2015)
Documentation technique de produits - Écriture - Partie 1: Prescriptions générales (ISO
3098-1:2015)
Ta slovenski standard je istoveten z: EN ISO 3098-1:2015
ICS:
01.110 7HKQLþQDGRNXPHQWDFLMD]D Technical product
L]GHONH documentation
01.140.10 3LVDQMHLQSUHþUNRYDQMH Writing and transliteration
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 3098-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2015
ICS 01.100.01 Supersedes EN ISO 3098-0:1997
English Version
Technical product documentation - Lettering - Part 1: General
requirements (ISO 3098-1:2015)
Documentation technique de produits - Écriture - Partie 1: Technische Produktdokumentation - Schriften - Teil 1:
Exigences générales (ISO 3098-1:2015) Grundregeln (ISO 3098-1:2015)
This European Standard was approved by CEN on 12 December 2014.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3098-1:2015 E
worldwide for CEN national Members.

Contents Page
Foreword .3
Foreword
This document (EN ISO 3098-1:2015) 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 September 2015, and conflicting national standards shall be
withdrawn at the latest by September 2015.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 3098-0:1997.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 3098-1:2015 has been approved by CEN as EN ISO 3098-1:2015 without any modification.

INTERNATIONAL ISO
STANDARD 3098-1
Second edition
2015-03-01
Technical product documentation —
Lettering —
Part 1:
General requirements
Documentation technique de produits — Écriture —
Partie 1: Exigences générales
Reference number
ISO 3098-1:2015(E)
©
ISO 2015
ISO 3098-1:2015(E)
© ISO 2015
All rights reserved. Unless otherwise specified, 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
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Tel. + 41 22 749 01 11
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Published in Switzerland
ii © ISO 2015 – All rights reserved

ISO 3098-1:2015(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General requirements . 2
5 Dimensions . 2
5.1 Nominal size . 2
5.2 Location of central lines . 3
5.3 Range of nominal sizes . 4
5.4 Lettering angle . 5
5.5 Types of lettering . 5
5.6 Underlined and overlined texts or text fields . 7
6 Designation . 8
Bibliography . 9
ISO 3098-1:2015(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. 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. 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 on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 10, Technical product documentation,
Subcommittee SC 1, Basic conventions. This second edition of ISO 3098-1 cancels and replaces the first
edition of ISO 3098-0:1997, of which it constitutes a minor revision.
ISO 3098 consists of the following parts, under the general title Technical product documentation — Lettering:
— Part 1: General requirements
— Part 2: Latin alphabet, numerals and marks
— Part 3: Greek alphabet
— Part 4: Diacritical and particular marks for the Latin alphabet
— Part 5: CAD letter
...