EN ISO 5261:1999
(Main)Technical drawings - Simplified representation of bars and profile sections (ISO 5261:1995)
Technical drawings - Simplified representation of bars and profile sections (ISO 5261:1995)
Lays down rules complementary to ISO 128 and ISO 129 for the simplified representation of bars and profile sections in assembly and detail drawings.
Technische Zeichnungen - Vereinfachte Angabe von Stäben und Profilen (ISO 5261:1995)
Diese Norm enthält zusätzlich zu den Regeln in ISO 128 und ISO 129 Festlegungen für die vereinfachte Darstellung von Stäben und Profilen in Zusammenbau- und Einzelteil-Zeichnungen, unter anderem für: - Metallbau-Konstruktionen aus Blechen, Pofilen und Zusammenbauten (einschließlich Brücken, Fachwerke, Pfeiler usw.); - Hebe- und Transport-Einrichtungen; - Speicher- und Druckbehälter; - Aufzüge, Fahrtreppen und Förderbänder.
Dessins techniques - Représentation simplifiée des barres et des profilés (ISO 5261:1995)
La présente Norme internationale prescrit des règles complémentaires aux spécifications de l'ISO 1281) et de l'ISO 129, utilisées pour la représentation simplifiée de barres et profilés dans les dessins d'ensemble et de détail des:- structures métalliques avec tôles, profilés et éléments composés (y compris les ponts, les treillis, les poteaux, etc.);- appareils de levage et de transport;- réservoirs et récipients sous pression;- ascenseurs, escaliers mécaniques, courroies transporteuses.
Technical drawings - Simplified representation of bars and profile sections (ISO 5261:1995)
General Information
Overview
EN ISO 5261:1999 specifies complementary rules to ISO 128 and ISO 129 for the simplified representation of bars and profile sections in assembly and detail drawings. The standard focuses on clear, compact designation and schematic depiction of common bar and profile elements used in mechanical and construction drawings. Figures in the standard are shown in first angle orthographic projection and linear dimensions are given in millimetres.
The simplified representation typically consists of the relevant ISO designation followed, if necessary, by the cutting length separated by a hyphen. Where no ISO designation exists, a graphical symbol may be followed by necessary dimensions according to the tables provided.
Key Topics
- Designation format: Use the ISO designation then the cutting length (e.g., Angle profile ISO 657-1 - 50 x 50 x 4 - 1000).
- Graphical symbols: Table 1 and Table 2 in the standard list graphical symbols for common bar and profile sections and indicate alternative uppercase letter symbols for simplification (for example, L, T, I, H, U, Z).
- Dimensioning rules: When an ISO designation is not available, compose the designation from the graphical symbol followed by the necessary dimensions (millimetres).
- Schematic representation: Compound frames can be shown by continuous thick lines indicating centroidal lines; distances between centroidal reference points should be indicated on the schematic.
- Dimensional chains: Closed dimensional chains are permitted; for cumulative tolerances, indicate which dimension is to be equalized.
Examples from the standard:
- Angle profile: L 89 x 60 x 7 - 500
- Rectangular solid bar: p 50 x 10 - 100
- Equal-leg angle (ISO 657-1): ISO 657-1 - 50 x 50 x 4 - 1000
Applications
EN ISO 5261:1999 is directly applicable to drawings and documentation for:
- Structural metalwork (plates, profile sections, compound elements such as bridges and frameworks)
- Lifting and transport appliances
- Storage tanks and pressure vessels
- Lifts, moving stairways and conveyor belts
- Assembly and detail drawings, item lists and schematic representations where space or clarity demands simplified depiction
Practical benefits include improved drawing clarity, reduced clutter in assembly drawings, consistent designation across projects, and faster interpretation by manufacturing and construction teams.
Related Standards
- ISO 128: General principles of presentation for technical drawings
- ISO 129: Dimensioning
- ISO 10209-1: Vocabulary and terms relating to technical drawings (definitions referenced)
- ISO 7573: Item lists (filling in item lists with simplified designations)
- ISO 657-1: Example for equal-leg angle designations
Use EN ISO 5261:1999 in conjunction with these standards to ensure uniform, concise, and unambiguous representation of bars and profile sections in technical documentation.
Frequently Asked Questions
EN ISO 5261:1999 is a standard published by the European Committee for Standardization (CEN). Its full title is "Technical drawings - Simplified representation of bars and profile sections (ISO 5261:1995)". This standard covers: Lays down rules complementary to ISO 128 and ISO 129 for the simplified representation of bars and profile sections in assembly and detail drawings.
Lays down rules complementary to ISO 128 and ISO 129 for the simplified representation of bars and profile sections in assembly and detail drawings.
EN ISO 5261:1999 is classified under the following ICS (International Classification for Standards) categories: 01.100.30 - Construction drawings. The ICS classification helps identify the subject area and facilitates finding related standards.
You can purchase EN ISO 5261:1999 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2002
Technical drawings - Simplified representation of bars and profile sections (ISO
5261:1995)
Technical drawings - Simplified representation of bars and profile sections (ISO
5261:1995)
Technische Zeichnungen - Vereinfachte Angabe von Stäben und Profilen (ISO
5261:1995)
Dessins techniques - Représentation simplifiée des barres et des profilés (ISO
5261:1995)
Ta slovenski standard je istoveten z: EN ISO 5261:1999
ICS:
01.080.30 *UDILþQLVLPEROL]DXSRUDERY Graphical symbols for use on
ULVEDKGLDJUDPLKQDþUWLK mechanical engineering and
]HPOMHYLGLKYVWURMQLãWYXLQ construction drawings,
JUDGEHQLãWYXWHUYXVWUH]QL diagrams, plans, maps and in
WHKQLþQLSURL]YRGQL relevant technical product
GRNXPHQWDFLML documentation
01.100.30 *UDGEHQLQDþUWL Construction drawings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
INTERNATIONAL
STANDARD
Second edition
1995-l I-01
Technical drawings - Simplified
representation of bars and profile sections
- Rep&en tation simplif@e des barres et des
Dessins techniques
pro filks
Reference number
IS0 5261:1995(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work
of preparing International Standards is normally carried out through IS0
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. IS0
collaborates closely with the International Electrotechnical Commission
(I EC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard IS0 5261 was prepared by Technical Committee
ISOfTC 10, Technical drawings, product definition and related documen-
tation, Subcommittee SC 6, Mechanical engineering documentation.
This second edition of IS0 5261 together with IS0 5845~I:1995 cancel
and replace IS0 5261:1981, which has been technically revised.
Annex A of this International Standard is for information only.
0 IS0 1995
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronic or mechanical, rncluding photocopyrng and
microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
0 IS0
IS0 5261:1995(E)
Introduction
For purposes of uniformity, the figures given in this International Standard
are shown in first angle orthographic projection and all the linear dimen-
sions are in millimetres. It is understood that other orthographic pro-
jections or units of measure could equally well have been used without
prejudice to the principles established. The figures, chosen only to illus-
trate the text, may be incomplete.
. . .
III
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IS0 5261:1995(E)
INTERNATIONAL STANDARD 0 IS0
Technical drawings - Simplified representation of
bars and profile sections
3 Definitions
1 Scope
This International standard specifies rules comp-
For the purposes of this International Standard, the
lementary to IS0 128’) and IS0 129 for the simplified
definitions given in IS0 10209-I apply.
representation of bars and profile sections in as-
sembly and detail drawings concerning, among oth-
ers:
- structural metal work consisting of plates and
sheets, profile sections and compound elements
(including bridges, frameworks, pilings, etc.);
4 Complementary rules for the
- lifting and transport appliances;
simplified representation of bars and
- storage tanks and pressure vessels; profile sections
- lifts, moving stairways and conveyor belts.
The simplified representation of bars and profile
sections shal
...
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