oSIST prEN ISO 7519:2024

SLOVENSKI STANDARD
01-oktober-2024
Tehnična dokumentacija proizvodov - Gradbena dokumentacija - Splošna načela
prikazovanja na situacijskih in sestavnih risbah (ISO/FDIS 7519:2024)
Technical product documentation (TPD) - Construction documentation - General
principles of presentation for general arrangement and assembly drawings (ISO/FDIS
7519:2024)
Documentation technique de produits (TPD) - Documentation de construction - Principes
généraux de présentation pour les dessins de disposition générale et d’assemblage
(ISO/FDIS 7519:2024)
Ta slovenski standard je istoveten z: prEN ISO 7519
ICS:
01.100.30 Gradbeni načrti Construction drawings
01.110 Tehnična dokumentacija za Technical product
izdelke documentation
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

FINAL DRAFT
International
Standard
ISO/FDIS 7519
ISO/TC 10/SC 8
Technical product documentation
Secretariat: SN
(TPD) — Construction
Voting begins on:
documentation — General
2024-08-09
principles of presentation for
Voting terminates on:
general arrangement and assembly
2024-11-01
drawings
Documentation technique de produits (TPD) — Documentation
de construction — Principes généraux de présentation pour les
dessins de disposition générale et d’assemblage
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/CEN PARALLEL PROCESSING LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 7519:2024(en) © ISO 2024

FINAL DRAFT
ISO/FDIS 7519:2024(en)
International
Standard
ISO/FDIS 7519
ISO/TC 10/SC 8
Technical product documentation
Secretariat: SN
(TPD) — Construction
Voting begins on:
documentation — General
principles of presentation for
Voting terminates on:
general arrangement and assembly
drawings
Documentation technique de produits (TPD) — Documentation
de construction — Principes généraux de présentation pour les
dessins de disposition générale et d’assemblage
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 7519:2024(en) © ISO 2024

ii
ISO/FDIS 7519:2024(en)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Construction drawings . . 2
4.1 General principles .2
4.1.1 Standardized and documented approach to communication .2
4.1.2 Conveyance of purposes .2
4.1.3 Dimensional accuracy .2
4.1.4 Use of content from scanned sources .3
4.1.5 Provision and robustness of external references .3
4.2 Types of drawings .3
4.3 Organization of drawing sets .3
4.3.1 Supplementary information of drawings .3
4.3.2 Hierarchy and grouping of drawings .4
4.4 Site plan.4
4.5 Site layout drawing .5
4.6 General arrangement drawings .6
4.7 Assembly drawings .6
4.8 Component drawings .7
4.9 Detail drawings.7
5 General techniques . 7
5.1 General .7
5.2 General representation techniques .7
5.2.1 Simplification .7
5.2.2 Representation types .7
5.3 Simplified representation .8
5.3.1 General .8
5.3.2 Simplified low level representation .8
5.3.3 Simplified medium level representation .8
5.3.4 Simplified high-level representation .8
5.3.5 Simplified detailed representation .9
5.4 Graphical symbols .9
5.4.1 General .9
5.4.2 Graphical symbol types .10
5.4.3 Presentation .10
5.4.4 Consistent understanding .10
5.4.5 Readability .10
5.5 Lines .10
5.5.1 Line types .10
5.5.2 Line width.11
5.5.3 Line use for parts in the cutting plane .11
5.5.4 Line use for parts in front of the cutting plane .11
5.5.5 Line use for parts beyond the cutting plane .11
5.5.6 Line use for indicating function within a simplified representation . 12
5.5.7 Line use for indicating function within a graphical symbol. 12
5.5.8 Other line uses . 12
5.6 Hatching, shading and colour . 13
5.6.1 Purpose . 13
5.6.2 Hatching and scale . 13
5.6.3 Hatching of large area . 13
5.7 Alphanumerical information .14

iii
ISO/FDIS 7519:2024(en)
5.7.1 General .14
5.7.2 Text styles and height .14
5.7.3 Designations .14
5.7.4 General text .14
5.7.5 Reference keynotes .14
5.7.6 Schedules and lists. 15
6 Application of representation .15
6.1 Stairs and ramps . 15
6.2 Doors .16
6.2.1 Simplified representation .16
6.2.2 Door swings .17
6.3 Windows.17
6.4 Suspended ceilings .18
6.5 Openings, holes and recesses .18
6.5.1 Openings and holes .18
6.5.2 Recesses .19
6.6 Arrow symbols .19
6.7 Referencing and cross referencing .19
Annex A (informative) Examples of door and window representation .21
Annex B (informative) Materials in plan or section .24
Bibliography .26

iv
ISO/FDIS 7519:2024(en)
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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,
Subcommittee SC 8, Construction 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 third edition cancels and replaces the second edition (ISO 7519:2024), of which it constitutes a minor
revision. The changes are as follows:
— Key 2 in Figure 1 has been changed from “line 2, long-dashed dotted wide line (type 04.2)” to “line 2,
long-dashed dotted extra-wide line (type 04.3)”;
— Line 2 in Figure 1 has been changed to a dash dot line;
— Decimal separators were updated with commas in Figures 9a, 9c, 10a, 10c, 14, 15.
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.

v
ISO/FDIS 7519:2024(en)
Introduction
This document aims to condense rules and recommendations from International Standards and give
guidance concerning the production of easy-to-read construction drawings, specifically building layouts.
Methods used by the architectural and engineering professions to produce construction drawings varies,
from a human holding a pencil or ink pen to computer aided drafting or design (CAD), as well as building
information modelling (BIM). Regardless, what is produced as paper deliverables has generally remained
consistent. The same presentation approaches and graphical symbols are used.
Further developments in information technology are providing more efficient and convenient methods for
delivering, sharing and communicating information. As these technologies evolve, two constant elements
relating to what is produced are construction drawings and records. These allow for visual verification and
validation using agreed standard presentation methods.
Construction drawings are used by both designers and constructors to communicate using a common
language. Regardless of the method of production of the drawing, the content, displayed as lines, symbols,
patterns and other techniques predominantly made available on paper or display, is clear, precise and
unambiguous in terms of the meaning it conveys.
In this document, the phrase “construction drawing” aligns with the concept of “technical drawing” as
defined in the ISO 128 series. Therefore, it is intended to be interpreted in the broadest possible sense,
encompassing the total package of documentation specifying the building.
This document is complementary to the ISO 128 series for construction drawings.
The figures included in this document are intended to illustrate the text and/or to provide examples of the
related technical drawing specification. These figures are not fully dimensioned and toleranced, showing
only the relevant general principles. In all figures, the leader lines using an arrow and text ending with
“type” and numbers indicate the line types used for the representations. They are not elements which are
presented on a construction drawing.

vi
FINAL DRAFT International Standard ISO/FDIS 7519:2024(en)
Technical product documentation (TPD) — Construction
documentation — General principles of presentation for
general arrangement and assembly drawings
1 Scope
This document establishes general principles of presentation to be applied to construction drawings for
general arrangement and assembly, mainly within the field of building and architectural drawings.
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 128-2, Technical product documentation (TPD) — General principles of representation — Part 2: Basic
conventions for lines
ISO 128-3, Technical product documentation (TPD) — General principles of representation — Part 3: Views,
sections and cuts
ISO 3098-1, Technical product documentation — Lettering — Part 1: General requirements
ISO 6707-1, Buildings and civil engineering works — Vocabulary — Part 1: General terms
ISO 7200, Technical product documentation — Data fields in title blocks and document headers
ISO 9431, Construction drawings — Spaces for drawing and for text, and title blocks on drawing sheets
ISO 10209, Technical product documentation — Vocabulary — Terms relating to technical drawings, product
definition and related documentation
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 6707-1, ISO 10209 and the
following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
geometrical information
description of detail and extent of information that can be expressed using shape, size, dimension and
location
Note 1 to entry: Geometrical information can also describe material and movement of objects.
[SOURCE: EN 17412-1:2020, 3.12, modified — Note 1 to entry added.]

ISO/FDIS 7519:2024(en)
3.2
alphanumerical information
description of detail and extent of information that can be expressed using characters, digits and symbols or
tokens such as mathematical symbols and punctuation marks
[SOURCE: EN 17412-1:2020, 3.13]
3.3
graphical symbol
visually perceptible figure with a particular meaning used to transmit information independently of
language
Note 1 to entry: A graphical symbol can represent objects of interest, such as products, functions or requirements for
manufacturing or quality control.
Note 2 to entry: A graphical symbol is not to be confused with a simplified representation (3.4) of a product, which is
normally drawn to scale and which can look like a graphical symbol.
[SOURCE: ISO 81714-1:2010, 3.1]
3.4
simplified representation
representation drawn in accordance with the valid rules of projection and on which individual elements of
the product are not shown, provided this does not present difficulties in understanding the drawing
[SOURCE: ISO/TS 128-71:2010, 3.2]
4 Construction drawings
4.1 General principles
4.1.1 Standardized and documented approach to communication
Construction drawings shall use a standardized and documented approach to present information that is
clear, concise and unambiguous. This shall be achieved using a variety of techniques, such as lines, hatching,
shading, colour, text, schedules and lists, as well as references to external sources.
4.1.2 Conveyance of purposes
To lessen the risk of ambiguity, each drawing should minimize the purposes conveyed. The purposes of each
drawing shall be identified in the drawing title or supplementary title in accordance with ISO 7200, with
additional information provided within the general notes.
The content of a drawing shall be conveyed using identifiable representation and graphical symbols
consistent with the purposes. A symbols legend, within the space for text (see ISO 9431), or alternatively a
separate legend drawing, shall be referenced to identify the key drawing elements.
4.1.3 Dimensional accuracy
Construction drawings shall be dimensionally accurate and coordinated with geospatial referencing to
ensure a common coordinate system. Construction drawings shall be based upon an identified site base
datum or point.
Construction drawings shall be produced to different scales depending upon the project needs and identified
purposes. The drawings should indicate the intended paper size and each view should indicate the scale.
NOTE 1 A site or project grid on the construction drawings is generally established based upon the site datum.
NOTE 2 See ISO 4463-1 for the relationship between the different grids (structural reference grid, secondary
setting-out grid and site grid) and use of secondary (setting-out) lines.

ISO/FDIS 7519:2024(en)
NOTE 3 See ISO 5455 for additional information on scale.
4.1.4 Use of content from scanned sources
Where construction drawings include content from point clouds or photogrammetry, as a record of
construction, the content shall be reproduced to ensure that the information provided is both clear and
concise in accordance with the documented standards.
4.1.5 Provision and robustness of external references
Where information is referenced from external sources using hyperlinks or similar, the long-term provision
and robustness of the link shall be guaranteed or, alternatively, an offline copy shall be provided.
4.2 Types of drawings
Depending upon the object scope of representation, the following construction drawing types can be used:
— site plan, indicating the extent of the construction site and associated works in context;
— site layout drawing, indicating building location, phases, zones or volumes, topography and layout on site;
— general arrangement drawing, indicating the arrangement of elements which represent a whole building
or part of a building;
— assembly drawing, demonstrating a spatial region, a functional system or a set of components;
— component drawing, representing a component with its parts;
— detail drawing, presenting a connection between components or enlarged demonstration of a part;
— drawing with schedules and lists.
NOTE 1 See ISO 10209 for definitions of drawing types.
NOTE 2 This document primarily describes general arrangement drawings and assembly drawings, even though
many of the techniques are also applicable for other types.
NOTE 3 Documents of specifications or instructions are also used for delivering further information.
Building components which are detailed or specified in other documents, such as component range drawings,
detail drawings, parts list and specifications, may be shown in a simplified manner on general arrangement
and assembly drawings.
NOTE 4 The degree of simplification depends on the kind of object represented, the scale of the drawing and the
purpose of the documentation. This is further described in Clause 5.
4.3 Organization of drawing sets
4.3.1 Supplementary information of drawings
To enhance readability, drawings shall include supplementary information, such as explanations,
instructions, references, a location figure and a revision table in accordance with ISO 9431.
Drawing sets may include a common legend explaining lines, notation, elements and graphical symbols used
within the set.
Drawing sets shall include referencing to appropriate views or views on drawing, such as plans, elevations,
sections, callouts and schedules or to details providing increased level of detailed information. The references
can be in the form of hyperlinks to other drawings, documents or different kinds of digital objects.
NOTE Projection methods and representation of views, sections, cuts and cut with mirrored orthographic
projection are specified in ISO 128-3.

ISO/FDIS 7519:2024(en)
Further information regarding references to drawings and documents for manufacturing, construction and
assembly shall be made, normally in the space for text on the drawing sheet (see ISO 9431).
4.3.2 Hierarchy and grouping of drawings
By definition, site plans and site layout drawings are types of general arrangement drawings. In the context
of this document, however, they are viewed as being in the top of a hierarchy of drawings, based on the
size of the objects represented. This is shown in Table 1. Drawings may also by grouped into sets based
upon other criteria, e.g. identifying organizations, locations, phases, zones or volumes, levels, disciplines and
systems.
Table 1 — Hierarchy of drawing types
Types of drawing Example
Site plan Geographical location, context and boundary of a building
Site layout drawing Location of the building, including landscaping features
General arrangement drawing Building storey
Assembly drawing Kitchen furnishings
Component drawing Doors
Detail drawing Wall section
4.4 Site plan
The site plan is a location drawing showing the boundary and context of the construction site indicating the
building(s) location in a plan view (see Figure 1). The following shall apply:
— The direction of north shall be indicated and preferably be vertical.
— Buildings shall be presented by the footprint (building extent) using continuous extra-wide lines (type
01.3), see Figure 1, line 1.
— The extent of the site boundary shall be indicated using a long-dashed dotted extra-wide line (type 04.3),
see Figure 1, line 2.
— The existing context shall be indicated as continuous wide lines (type 01.2), see Figure 1, line 3.
— The geospatial position of either the site boundary or the building, or both, shall be shown.
NOTE In this document, the line type and its number are given according to ISO 128-2.

ISO/FDIS 7519:2024(en)
Key
1 line 1, continuous extra-wide line (type 01.3)
2 line 2, long-dashed dotted extra-wide line (type 04.3)
3 line 3, continuous wide lines (type 01.2)
Figure 1 — Site plan indicating site boundary, building outline, datum and geospatial coordinates.
4.5 Site layout drawing
A site layout drawing shows the setting out of the whole or major parts of a building indicating phases, zones
or volumes in context of the construction site in a plan view. The following shall apply:
— The direction of north shall be indicated, preferably in the first quadrant (between right and up).
— Buildings or major parts of a building shall be presented by outlines at ground level (the building
footprint) using continuous extra-wide lines (type 01.3), see Figure 2, line 1.
— Outlines of building parts extruding above ground, for example floors, roofs, and balconies, shall be
shown using long-dashed dotted wide lines (type 04.2), see Figure 2, line 2.
— Outlines of building parts below ground, for example culverts and cellars, shall be shown using dashed
wide lines (type 02.2), see Figure 2, line 3.
— A site datum shall be indicated along with coordinates.

ISO/FDIS 7519:2024(en)
— Location of a building or part of a building should be marked with no less than three sets of coordinates
along the building footprint.
— Size of building(s) and distance between buildings should be indicated.
— Areas for traffic, parking and access to buildings should be shown.
Other drawings for specific use, for example layout of outdoor fire-prevention and evacuation facilities, can
be developed based on the site layout plan.
Key
1 line 1, continuous extra-wide line (type 01.3)
2 line 2, long-dashed dotted extra-wide line (type 04.3)
3 line 3, dashed wide line (type 02.2)
Figure 2 — Lines showing a building on a site layout drawing
4.6 General arrangement drawings
General arrangement drawings represent the whole or major parts of buildings, using techniques described
in Clause 5. The following shall apply:
— To show the layout and relationships among assemblies, general arrangement drawings may include
multiple types of views, e.g. such as plans, elevations, cuts, and axonometric representations.
— A datum and coordinates shall be indicated on each drawing, except where a defined building grid has
been established.
— Dimensions and notations shall include key objects only. Further information shall be indicated within
the assembly drawings.
— Dimensions shall indicate either structural or finished dimensions.
— The notes within the title block shall indicate the standards used for the drawing type.
— Specifications or requirements related to the whole or parts of the building should be given with notes,
schedule(s) and list(s), which should be placed in the space for text (see ISO 9431).
4.7 Assembly drawings
Assembly drawings represent the location and layout of assemblies, for example functional systems, or
fixtures and fittings, in space, using techniques as described in Clause 5. The following shall apply:
— Assembly drawings may include multiple presentation views, e.g. plan, elevation, cuts, and axonometric
representation.
— Assembly drawings shall present a combination of components to indicate a single functional system or
space(s), regardless of whole or part. Where an assembly is simple, all its components may be represented
on a single drawing and the component drawing level omitted.

ISO/FDIS 7519:2024(en)
4.8 Component drawings
Component drawings are used to fully explain a component, which shall provide the level of detailed
information required and shall include detailed geometry which has been simplified within the general
arrangement or assembly drawings.
Component drawings shall be cross-referenced with other drawings within the construction drawing set.
4.9 Detail drawings
Detail drawings present a connection between components or provide an enlarged presentation of a part or
series of parts and how these are assembled. A detail drawing shall use detailed representation (see 5.3.5.2)
and can include small geometric elements and methods of fixings omitted from other drawing types.
Detail drawings shall be cross-referenced with other drawings within the construction drawing set using a
reference mark, which shall indicate the detail drawing by reference number.
5 General techniques
5.1 General
In construction drawings, objects shall be depicted using a combination of:
— geometrical information, showing shape, size, dimension, location, function and material of objects;
— alphanumerical information, further describing the object, possibly including references to external
documentation.
5.2 General representation techniques
5.2.1 Simplification
Drawings shall be drawn using a representation appropriate to the type of drawing produced and the
proposed representative scale associated with that drawing.
Due to the size and complexity of objects within construction drawings, their graphical representation shall
be simplified, appropriate to the scale of the information to be produced.
NOTE The size of the objects provides a guide to what objects to depict. A general approach indicates that objects
smaller than 50 mm at a scale of 1:50 or 100 mm at a scale of 1:100 cannot be clearly presented and therefore can be
omitted.
5.2.2 Representation types
Drawings may use different representation types to convey information dependent upon criteria such as the
intended purposes, audience, decision status and scale of reproduction.
To facilitate clear and unambiguous information within drawings, elements shall be depicted by one of the
following methods:
— simplified representation (see 5.3), using lines (see 5.5) combined with hatching, shading and colour
(see 5.6);
— graphical symbols (see 5.4).
In addition, designations and text can be used to further describe objects (see 5.7).

ISO/FDIS 7519:2024(en)
5.3 Simplified representation
5.3.1 General
Simplified representation shall use graphical elements to identify the make-up of an object and can represent
its shape, size, dimension, location, function, and materials.
In doing this, simplified levels of representation shall be set up as follows:
— low-level representation;
— medium-level representation;
— high-level representation;
— detailed representation.
Low-level, medium-level and high-level simplified representation shall be used within general arrangement
and assembly drawings. The level of simplification shall be appropriate to the drawing purposes and
reproduction scale. If a detail is too complex it might not be possible to reproduce on a plotted output.
No distinct border exists between simplified and detailed representation. Typically, the simplified
representation shows only the outlines of an object, while a detail also shows internal arrangement of parts
of the object, e.g. a wall construction. However, to enhance understanding, larger sub-parts can also be
shown while using simplified representation.
Depending on complexity and scale, a suitable line group shall be used. See 5.5.2.
See Annex B, Tables B.1 and B.2, for examples of materials used in plan or section.
5.3.2 Simplified low level representation
When using simplified low-level representation, only object outlines shall be shown. No internal boundaries
or materials shall be indicated. See Figure 3 a).
5.3.3 Simplified medium level representation
When using simplified medium-level representation, major internal layers, skins and large cavities in objects
visible at the chosen scale shall be shown. Main materials shall be identified in cut view. See Figure 3 b).
5.3.4 Simplified high-level representation
When using simplified high-level representation, all features visible at the chosen scale shall be shown.
This includes major and minor geometry with layers, skins and cavities. Minor elements, including material
definitions, shall be identified in cut view and projection. See Figure 3 c).
a) Example of low-level b) Example of medium-level rep- c) Example of high-level representa-
representation resentation tion
Figure 3 — Simplified levels of representation

ISO/FDIS 7519:2024(en)
5.3.5 Simplified detailed representation
5.3.5.1 General
For details, the levels of complexity required to be shown may exceed that of simplified representation.
5.3.5.2 Use of detailed representation
Detailed representation shall be used within detail drawing types, typically at scale 1:10 or greater, or where
the complexity of the geometry does not impact the clarity of the information to be presented.
5.3.5.3 Parts to be included within detailed representation
Parts drawn using detailed representation may encompass manufactured products and fixings, including
complex geometry and profiles omitted from other forms of simplified representation, as well as their
material and fixing requirements. See Figure 4.
Figure 4 — Example of detailed level representation
5.4 Graphical symbols
5.4.1 General
Graphical symbols shall be used based upon a documented standard and used consistently through all
drawings of the same type.
ISO/FDIS 7519:2024(en)
5.4.2 Graphical symbol types
Graphical symbols used in construction drawings are of two fundamental types:
— object symbols, showing the location, geometric size or physical characteristics of a building object.
Symbols may be:
— scale dependent, keeping the same relative size to non-symbolized objects as the scale changes, for
example a tree symbol in a site layout drawing;
— scale independent, always having the same size on the drawing regardless of scale, for example a
light switch, see Figure 5.
— explanatory sy
...