SIST EN ISO 6412-1:1998
(Main)Technical drawings - Simplified representation of pipelines - Part 1: General rules and orthogonal representation (ISO 6412-1:1989)
Technical drawings - Simplified representation of pipelines - Part 1: General rules and orthogonal representation (ISO 6412-1:1989)
This part deals with rules common to orthogonal and isometric representation. Rules applicable only to isometric representation are given in part 2. All sorts of pipe materials (rigid and flexible) are covered. The figures only illustrate the text and should not be considered dessign examples Annex A contain the bibliography and is for information only.
Technische Zeichnungen - Vereinfachte Darstellung von Rohrleitungen - Teil 1: Allgemeine Regeln und orthogonale Darstellung (ISO 6412-1:1989)
Dieser Teil von ISO 6412 legt Regeln und Vereinbarungen für die Ausführung vereinfachter Zeichnungen für die Darstellung von Rohren und Rohrleitungen aller Art fest, unabhängig vom Werkstoff (flexibel und nicht flexibel). Sie wird immer dann angewendet, wenn Rohre oder Rohrleitungen in vereinfachter Form dargestellt werden. In diesem Teil von ISO 6412 illustrieren die Bilder den Text nur und sind nicht als Ausführungsbeispiele zu betrachten.
Dessins techniques - Représentation simplifiée des tuyaux et lignes de tuyauteries - Partie 1: Regles générales et représentation orthogonale (ISO 6412-1:1989)
La présente partie de l'ISO 6412 prescrit les règles et conventions pour l'exécution des dessins simplifiés pour la représentation de tous les types de tuyaux et lignes de tuyauteries réalisés en divers matériaux. Elle doit être utilisée à chaque fois que des tuyaux ou lignes de tuyauteries sont à représenter de manière simplifiée. Pour les besoins de la présente partie de l'ISO 6412, les figures illustrent le texte seulement et il convient de ne pas les considérer comme des exemples de conception.
NOTE -- La présente partie de l'ISO 6412 pourrait être utilisée également pour la représentation d'installations similaires telles que des installations de ventilation ou de conditionnement d'air. Dans de tels cas le terme «gaine», etc, devrait se substituer à «tuyau».
Tehnične risbe - Poenostavljeno prikazovanje cevovodov - 1. del: Splošna pravila in ortogonalno prikazovanje
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 6412-1:1998
01-maj-1998
7HKQLþQHULVEH3RHQRVWDYOMHQRSULND]RYDQMHFHYRYRGRYGHO 6SORãQDSUDYLOD
LQRUWRJRQDOQRSULND]RYDQMH
Technical drawings - Simplified representation of pipelines - Part 1: General rules and
orthogonal representation (ISO 6412-1:1989)
Technische Zeichnungen - Vereinfachte Darstellung von Rohrleitungen - Teil 1:
Allgemeine Regeln und orthogonale Darstellung (ISO 6412-1:1989)
Dessins techniques - Représentation simplifiée des tuyaux et lignes de tuyauteries -
Partie 1: Regles générales et représentation orthogonale (ISO 6412-1:1989)
Ta slovenski standard je istoveten z: EN ISO 6412-1:1994
ICS:
01.100.01 7HKQLþQRULVDQMHQDVSORãQR Technical drawings in
general
23.040.01 Deli cevovodov in cevovodi Pipeline components and
na splošno pipelines in general
SIST EN ISO 6412-1:1998 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 6412-1:1998
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SIST EN ISO 6412-1:1998
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SIST EN ISO 6412-1:1998
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SIST EN ISO 6412-1:1998
INTERNATIONAL ISO
6412-1
STANDARD
First edition
1989-10-15
Technical drawings - Simplified representation
of pipelines -
Part 1 :
General rules and orthogonal representation
Reprbsen ta tion simplifihe des tuyaux et lignes du tuyau teries -
Dessins techniques -
Partie 7 : R&gles gh?rales et reprhsentation orthogonale
Reference number
ISO 6412-1 : 1989 (EI
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SIST EN ISO 6412-1:1998
ISO 6412-1 : 1989(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. Esch 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, govern-
mental 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.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the ISO Council. They are approved in accordance with ISO procedures requiring at
least 75 % approval by the member bodies voting.
International Standard ISO 6412-1 was prepared by Technical Committee ISO/TC 10,
Technical drawings.
l title
ISO 6412 consists of the following Parts, under the genera Technical drawings -
Simplified represen ta tion o f pipelines :
-
Part 7 : General rules and orthogonal represen ta tion
-
Part 2: lsome tric projection
Annex A of this part of ISO 6412 is for information only.
0 ISO 1989
All rights reserved. No part of this publication may be reproduced or utilized in any form or by any
means, electronie or mechanical, including photocopying and microfilm, without Permission in
writing from the publisher.
International Organization for Standardization
Case postale 56 l CH-121 1 Geneve 20 l Switzerland
Printed in Switzerland
ii
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SIST EN ISO 6412-1:1998
ISO 64124 : 1989 (E)
Introduction
Depending on the information it is intended to convey and the form of representation
required, a distinction has to be made between graphical representation by means of
orthogonal and that by means of isometric representation.
This part of ISO 6412 deals, therefore, with general rules used for both representations
(orthogonal and isometric). Rules applicable only to isometric representation are given
in ISO 6412-2.
For the purposes of this part of ISO 6412, all dimensions and tolerantes on the
drawings have been stencilled in upright lettering. lt should be understood that these
indications could just as well be written in free-hand or inclined (italic) lettering without
altering the meaning of the indications.
For the presentation of lettering (proportions and dimensions), see 4.4.
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SIST EN ISO 6412-1:1998
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SIST EN ISO 6412-1:1998
INTERNATIONAL STANDARD ISO 6412-1 : 1989 (EI
Technical drawings - Simplified representation
of pipelines -
Part 1 :
General rules and orthogonal representation
ISO 3461-2 : 1987, General principles for the creation of
1 Scope
graphical Symbols - Part 2: Graphical Symbols for use in
technical product documen tation.
This patt of ISO 6412 specifies rules and conventions for the
execution of simplified drawings for the representation of all
ISO 3545 : 1981, Steel tubes and tubular shaped accessories
kinds of pipes and pipelines made of all sorts of materials (rigid
with circular Cross-section - Symbols to be used in specifica-
and flexible).
tions.
lt shall be used whenever pipes or pipelines have to be
1984, Technical drawings - lnstallations -
ISO 4067-1 :
represented in a simplified manner.
Part 7 : Graphical s ymbols for plumbing, heating, Ventilation
and ducting.
For the purposes of this part of ISO 6412, the figures illustrate
ISO 5261 : 1981, Technical drawings for structural metal work.
the text only and should not be considered as design examples.
ISO 5455 : 1979, Technical drawings - Scales.
NOTE - This part of ISO 6412 might also be of some use for the
representation of similar installations, such as Ventilation or air-
1982, Technical drawings - Requirements for
ISO 6428 :
conditioning Systems; in such cases, the term “duct”, etc. should be
microcop ying.
substituted for the term “Pipe”.
ISO 7573 : 1983, Technical drawings - ltem lists.
2 Normative references
3 Definitions
The following Standards contain provisions which, through
reference in this text, constitute provisions of this part of
For the purposes of ISO 6412, the following definitions apply.
ISO 6412. At the time of publication, the editions indicated
were valid. All Standards are subject to revision, and Parties to
agreements based on this part of ISO 6412 are encouraged to
3.1 orthogonal representation : Projection method in
investigate the possibility of applying the most recent editions
which the projectors are at right angles to the projection plane.
of the Standards listed below. Members of IEC and ISO main-
tain registers of currently valid International Standards.
32 isometric representation : Projection method in which
ISO 128 : 1982, Technical drawings - General principles of each of the three coordinate axes is inclined at the same angle
presen ta tion.
to the projection plane.
ISO 129 : 1985, Technical drawings - Dimensioning - General
principes, definitions, methods of execution and special indica-
3.3 flow line: Representation of the flow path of the inlet or
tions.
outlet streams or of material, energy or energy carriers.
ISO 406 : 1987, Technical drawings - Tolerancing of linear and
angular dimensions.
4 General principles
ISO 1219 : 1976, Fluid power Systems and components -
Graphit s ymbols.
In this clause all general principles are specified which are com-
ISO 3098-1 : 1974, Technical drawings - Lettering - Part 7: mon to the methods of projection and to the pictorial represen-
Gurren tly used characters. tations, as recommended in this part of ISO 6412.
1
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SIST EN ISO 6412-1:1998
ISO 6412-1 : 1989 (E)
4.1 Representation of pipes, etc. 4.3 Lines
The flow line representing a Pipe, etc. (irrespective of its
4.3.1 Thickness of lines
diameter), shall be a Single continuous thick line (type A, see
table 1 and ISO 1281, coinciding with the central line of the pipe In general, only one thickness of line shall be used. However, in
(see ISO 4067-1). cases where more than one line thickness has to be used, the
line thicknesses shall be Chosen from ISO 128; the relative pro-
portions of line thicknesses a:b:c shall be 2:fl:l. Different line
Bends may be simplified by extending the straight length of the
thicknesses shall then be used as follows (sec also 4.3.2):
flow line to the vertex (see figure 1). However, bends may be
shown for sake of clarity in the form illustrated in figure 2. In
-
line thickness a: main flow lines;
this case, if projections of bends would otherwise have been
elliptical, these projections may be simplified by drawing cir- -
line thickness b: secondary flow lines, lettering;
cular arcs (sec figure 3).
-
line thickness c: leader lines, dimension lines, etc.
4.2 Scale
4.3.2 Types of line
The types and thicknesses of line shown in table 1 shall be
If the drawing is to scale, this shall be indicated in accordance
with ISO 5455. used.
Table 1
Line type in accordance with
Description Application
with ISO 128
Al Flow lines and connected
Continuous thick
A
Parts
Bl Hatching
B2 Dimensioning
Continuous thin
B
B3 Leader lines
B4 Isometric grid lines
C : Continuous thin freehand
Cl/Dl Limits of partial or
interrupted views and
sections
Continuous thin with zigzags
D -+dr-
El Flow lines specified on
--mm Dashed thick
E
other drawing
Fl Floor
F2 Walls
---- Dashed thin
F
F3 Ceilings
F4 Holes (hole punchings)
G 1 Centrelines
-- --- Chain thin
G
Extra thick chain linel) EJI Contract boundary
mmmIp=
EJ
Kl Outlines of adj
...
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