SIST EN ISO 1302:2004
(Main)Geometrical Product Specifications (GPS) - Indication of surface texture in technical product documentation (ISO 1302:2002)
Geometrical Product Specifications (GPS) - Indication of surface texture in technical product documentation (ISO 1302:2002)
This International Standard specifies the rules for the indication of surface texture in technical product documentation (e.g. drawings, specifications, contracts, reports) by means of graphical symbols and textual indications.
It is applicable to the indication of requirements for surfaces by means of profile parameters, according to ISO 4287, related to the R-profile (roughness parameters), W-profile (waviness parameters) and P-profile (structural parameters), to motif parameters, according to ISO 12085, related to the roughness motif and waviness motif, as well as to parameters related to the material ratio curve according to ISO 13565-2 and ISO 13565-3.
NOTE For the indication of requirements for surface imperfections (pores, scratches etc.), which cannot be specified using surface texture parameters, reference is made to ISO 8785, which covers surface imperfections.
Geometrische Produktspezifikationen (GPS) - Angabe der Oberflächenbeschaffenheit in technischen Produktdokumentationen (ISO 1302:2002)
Diese Internationale Norm legt Regeln für die Angabe der Oberflächenbeschaffenheit in der technischen Produkt-dokumentation (z. B. Zeichnungen, Spezifikationen, Verträge, Berichte) mittels graphischer Symbole und Textangaben fest.
Sie ist anwendbar für die Angabe von Anforderungen an Oberflächen mittels
a) Profilkenngrößen nach ISO 4287 bezogen auf:
3 das R-Profil (Rauheits-Kenngrößen) und
3 das W-Profil (Welligkeits-Kenngrößen) und
3 das P-Profil (Struktur-Kenngrößen)
b) Motivkenngrößen nach ISO 12085 bezogen auf:
3 Rauheitsmotiv und
3 Welligkeitsmotiv
c) Kenngrößen bezogen auf die Materialanteil-Kurve nach ISO 13565-2 und ISO 13565-3.
ANMERKUNG Für die Angabe von Anforderungen an Oberflächenunregelmäßigkeiten (Poren, Kratzer u.dgl.) die nicht durch Oberflächenbeschaffenheits-Kenngrößen angegeben werden können, wird auf ISO 8785 verwiesen, die Oberflächen-unregelmäßigkeiten behandelt.
Spécification géométrique des produits (GPS) - Indication des états de surface dans la documentation technique de produits (ISO 1302:2002)
La présente Norme internationale spécifie les règles pour l'indication des états de surface dans la documentation technique de produits (par exemple dessins, spécifications, contrats, rapports) au moyen de symboles graphiques et d'indications textuelles. Elle est applicable à l'indication des exigences sur les surfaces au moyen de a) paramètres de profil conformément à l'ISO 4287, relatifs - au profil R (paramètres de rugosité), - au profil W (paramètres d'ondulation), et - au profil P (paramètres de structure); b) paramètres liés aux motifs conformément à l'ISO 12085, relatifs - au motif de rugosité, et - au motif d'ondulation; c) paramètres relatifs à la courbe du taux de longueur portante conformément à l'ISO 13565-2 et à l'ISO 13565-3.
NOTE Quant à l'indication des exigences concernant les imperfections de surface (pores, stries, etc.), qui ne peuvent pas être spécifiées à l'aide des paramètres d'état de surface, référence est faite à l'ISO 8785 qui couvre les imperfections de surface.
Specifikacija geometrijskih veličin izdelka - Označevanje površinskih tekstur v tehniški delavniški dokumentaciji izdelka (ISO 1302:2002)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 1302:2004
01-maj-2004
6SHFLILNDFLMDJHRPHWULMVNLKYHOLþLQL]GHOND2]QDþHYDQMHSRYUãLQVNLKWHNVWXUY
WHKQLãNLGHODYQLãNLGRNXPHQWDFLMLL]GHOND ,62
Geometrical Product Specifications (GPS) - Indication of surface texture in technical
product documentation (ISO 1302:2002)
Geometrische Produktspezifikationen (GPS) - Angabe der Oberflächenbeschaffenheit in
technischen Produktdokumentationen (ISO 1302:2002)
Spécification géométrique des produits (GPS) - Indication des états de surface dans la
documentation technique de produits (ISO 1302:2002)
Ta slovenski standard je istoveten z: EN ISO 1302:2002
ICS:
01.110 7HKQLþQDGRNXPHQWDFLMD]D Technical product
L]GHONH documentation
17.040.20 Lastnosti površin Properties of surfaces
SIST EN ISO 1302:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN ISO 1302:2004
---------------------- Page: 2 ----------------------
SIST EN ISO 1302:2004
EUROPEAN STANDARD
EN ISO 1302
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2002
ICS 01.100.20; 17.040.20
English version
Geometrical Product Specifications (GPS) - Indication of surface
texture in technical product documentation (ISO 1302:2002)
Spécification géométrique des produits (GPS) - Indication Geometrische Produktspezifikation (GPS) - Angabe der
des états de surface dans la documentation technique de Oberflächenbeschaffenheit in der technischen
produits (ISO 1302:2002) Produktdokumentation (ISO 1302:2002)
This European Standard was approved by CEN on 17 January 2002.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 1302:2002 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 1302:2004
EN ISO 1302:2002 (E)
CORRECTED 2002-04-10
Foreword
This document (ISO 1302:2002) has been prepared by Technical Committee ISO/TC 213
"Dimensional and geometrical product specifications and verification" in collaboration with
Technical Committee CEN/TC 290 "Dimensional and geometrical product specification and
verification", the secretariat of which is held by AFNOR.
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 August 2002, and conflicting national
standards shall be withdrawn at the latest by August 2002.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium, Czech
Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg,
Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of the International Standard ISO 1302:2002 has been approved by CEN as a
European Standard without any modifications.
NOTE Normative references to International Standards are listed in annex ZA (normative).
2
---------------------- Page: 4 ----------------------
SIST EN ISO 1302:2004
EN ISO 1302:2002 (E)
Annex ZA
(normative)
Normative references to international publications
with their relevant European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of
any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
NOTE Where an International Publication has been modified by common modifications, indicated
by (mod.), the relevant EN/HD applies.
Publication Year Title EN Year
ISO 3098-2 2000 Technical product documentation - EN ISO 3098-2 2000
Lettering - Part 2: Latin alphabet,
numberal and marks
ISO 3274 1996 Geometrical product specifications EN ISO 3274 1997
(GPS) - Surface texture: Profile method
- Nominal characteristics of contact
(stylus) instruments
ISO 4287 1997 Geometrical product specifications EN ISO 4287 1998
(GPS) - Surface texture: Profile method
- Terms, definitions and surface texture
para meters
ISO 4288 1996 Geometrical product specifications EN ISO 4288 1997
(GPS) - Surface texture: Profile method
- Rules and procedures for the
assessment of surface texture
ISO 8785 1998 Geometrical product specification EN ISO 8785 1999
(GPS) - Surface imperfections - Terms,
definitions and parameters
ISO 11562 1996 Geometrical product specifications EN ISO 11562 1997
(GPS) - Surface texture: Profile method
- Metrological characteristics of phase
correct filters
ISO 12085 1996 Geometrical product specification EN ISO 12085 1997
(GPS) - Surface texture: Profile method
- Motif parameters
3
---------------------- Page: 5 ----------------------
SIST EN ISO 1302:2004
EN ISO 1302:2002 (E)
ISO 13565-1 1996 Geometrical product specifications EN ISO 13565-1 1997
(GPS) - Surface texture: Profile
method; surfaces having stratified
functional proper ties - Part 1: Filtering
and general measurement conditions
ISO 13565-2 1996 Geometrical product specifications EN ISO 13565-2 1997
(GPS) - Surface texture: Profile
method; surfaces having stratified
functional properties - Part 2: Height
characterization using the linear
material ratio curve
ISO 13565-3 1998 Geometrical Product Specifications EN ISO 13565-3 2000
(GPS) - Surface texture: Profile
method; surfaces having stratified
functional properties - Part 3: Height
characterization using the material
probability curve
ISO 14253-1 1998 Geometrical Product Specifications EN ISO 14253-1 1998
(GPS) - Inspection by measurement of
workpieces and measuring equipment -
Part 1: Decision rules for proving
conformance or non-conformance with
specifications
ISO 14660-1 1999 Geometrical Product Specifications EN ISO 14660-1 1999
(GPS) - Geometrical features - Part 1:
General terms and definitions
ISO 81714-1 1999 Design of graphical symbols for use in EN ISO/IEC 11714-1 1999
the technical documentation of
products - Part 1: Basic rules
4
---------------------- Page: 6 ----------------------
SIST EN ISO 1302:2004
INTERNATIONAL ISO
STANDARD 1302
Fourth edition
2002-02-01
Geometrical Product Specifications
(GPS) — Indication of surface texture in
technical product documentation
Spécification géométrique des produits (GPS) — Indication des états de
surface dans la documentation technique de produits
Reference number
ISO 1302:2002(E)
©
ISO 2002
---------------------- Page: 7 ----------------------
SIST EN ISO 1302:2004
ISO 1302:2002(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not
be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this
file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this
area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters
were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event
that a problem relating to it is found, please inform the Central Secretariat at the address given below.
© ISO 2002
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, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body
in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.ch
Web www.iso.ch
Printed in Switzerland
ii © ISO 2002 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 1302:2004
ISO 1302:2002(E)
Contents Page
Foreword.iv
Introduction.v
1 Scope .1
2 Normative references.1
3 Terms and definitions .2
4 Graphical symbols for the indication of surface texture.3
5 Composition of complete graphical symbol for surface texture.5
6 Indication of surface texture parameters.6
7 Indication of manufacturing method or related information.11
8 Indication of the surface lay .12
9 Indication of machining allowance.14
10 Summarizing of indications of surface texture requirements and their values.14
11 Position on drawings and other technical product documentation.14
Annex A (normative) Proportions and dimensions of graphical symbols.20
Annex B (informative) Synoptive tables .23
Annex C (informative) Examples of indication of surface texture requirements .26
Annex D (informative) Minimum indications for unambiguous control of surface functions.30
Annex E (informative) Surface texture parameter designations .33
Annex F (informative) Evaluation length, ln.36
Annex G (informative) Transmission band and sampling length.37
Annex H (informative) Consequences of new ISO surface texture standards .39
Annex I (informative) Former practice .41
Annex J (informative) Relation to the GPS matrix model .44
Bibliography.46
© ISO 2002 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 1302:2004
ISO 1302:2002(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
The main task of technical committees is to prepare International Standards. 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.
Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 1302 was prepared by Technical Committee ISO/TC 213, Dimensional and geometrical
product specifications and verification.
This fourth edition cancels and replaces the third edition (ISO 1302:1992), which has been technically revised.
Annex A forms a normative part of this International Standard. Annexes B, C, D, E, F, G, H, I and J are for
information only.
iv © ISO 2002 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 1302:2004
ISO 1302:2002(E)
Introduction
This International Standard is a geometrical product specification (GPS) standard and is to be regarded as a
general GPS standard (see ISO/TR 14638). It influences link 1 of the chain of standards on roughness, waviness
and primary profile.
For more detailed information of the relation of this International Standard to other standards and the GPS matrix
model, see annex J.
This edition of ISO 1302 has been developed for use together with the new editions of the surface texture
standards issued in 1996 and 1997, which introduce many radical changes compared with the content of the
former surface texture standards issued in the 1980s. The changes are so radical that the drawing indications in
some instances have a completely new interpretation. Annex H gives detailed information on these changes.
Drawing indications applied on technical drawings according to former editions of this International Standard refer
to the rules given in the surface texture standards issued at the time of issue and can only be interpreted according
to those surface texture standards. Annex I provides information on former practices.
The drawing indications given in this edition are to be used for the unambiguous reference to the new surface
texture standards issued in 1996 and 1997.
Textual indications in this edition of ISO 1302 are under continuous development within ISO/TC 213 and a
separate, detailed standard on this issue is under preparation. Consequently, the textual indications given may
change in future editions of ISO 1302.
© ISO 2002 – All rights reserved v
---------------------- Page: 11 ----------------------
SIST EN ISO 1302:2004
---------------------- Page: 12 ----------------------
SIST EN ISO 1302:2004
INTERNATIONAL STANDARD ISO 1302:2002(E)
Geometrical Product Specifications (GPS) — Indication of surface
texture in technical product documentation
1 Scope
This International Standard specifies the rules for the indication of surface texture in technical product
documentation (e.g. drawings, specifications, contracts, reports) by means of graphical symbols and textual
indications.
It is applicable to the indication of requirements for surfaces by means of
a) profile parameters, according to ISO 4287, related to the
R-profile (roughness parameters),
W-profile (waviness parameters), and
P-profile (structural parameters),
b) motif parameters, according to ISO 12085, related to the
roughness motif, and
waviness motif,
c) parameters related to the material ratio curve according to ISO 13565-2 and ISO 13565-3.
NOTE For the indication of requirements for surface imperfections (pores, scratches etc.), which cannot be specified using
surface texture parameters, reference is made to ISO 8785, which covers surface imperfections.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are encouraged to
investigate the possibility of applying the most recent editions of the normative documents indicated below. For
undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC
maintain registers of currently valid International Standards.
1)
ISO 129-1:— , Technical drawings — Indication of dimensions and tolerances — Part 1: General principles
2)
ISO 1101:— , Geometrical Product Specifications (GPS) — Geometrical tolerancing — Tolerancing of form,
orientation, location and run-out
1) To be published. (Revision of ISO 129:1985)
2) To be published. (Revision of ISO 1101:1983)
© ISO 2002 – All rights reserved 1
---------------------- Page: 13 ----------------------
SIST EN ISO 1302:2004
ISO 1302:2002(E)
ISO 3098-2:2000, Technical product documentation — Lettering — Part 2: Latin alphabet, numerals and marks
ISO 3274:1996, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Nominal
characteristics of contact (stylus) instruments
ISO 4287:1997, Geometrical product specifications (GPS) — Surface texture: Profile method — Terms, definitions
and surface texture parameters
ISO 4288:1996, Geometrical product specifications (GPS) — Surface texture: Profile method — Rules and
procedures for the assessment of surface texture
ISO 8785:1998, Geometrical product specifications (GPS) — Surface imperfections — Terms, definitions and
parameters
3)
ISO 10135:— , Technical drawings — Simplified representation of moulded, cast and forged parts
ISO 10209-1:1992, Technical product documentation — Vocabulary — Part 1: Terms relating to technical
drawings: general and types of drawings
ISO 11562:1996, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Metrological
characteristics of phase correct filters
ISO 12085:1996, Geometrical product specifications (GPS) — Surface texture: Profile method — Motif parameters
ISO 13565-1:1996, Geometrical Product Specifications (GPS) — Surface texture: Profile method; Surfaces having
stratified functional properties — Part 1: Filtering and general measurement conditions
ISO 13565-2:1996, Geometrical Product Specifications (GPS) — Surface texture: Profile method; Surfaces having
stratified functional properties — Part 2: Height characterization using the linear material ratio curve
ISO 13565-3:1998, Geometrical Product Specifications (GPS) — Surface texture: Profile method; Surfaces having
stratified functional properties — Part 3: Height characterization using the material probability curve
ISO 14253-1:1998, Geometrical Product Specifications (GPS) — Inspection by measurement of workpieces and
measuring equipment — Part 1: Decision rules for proving conformance or non-conformance with specification
ISO 14660-1:1999, Geometrical Product Specifications (GPS) — Geometrical features — Part 1: General terms
and definitions
ISO 81714-1:1999, Design of graphical symbols for use in the technical documentation of products — Part 1: Basic
rules
3 Terms and definitions
For the purposes of this International Standard, the terms and definitions given in ISO 3274, ISO 4287, ISO 4288,
ISO 10209-1, ISO 11562, ISO 12085, ISO 13565-2, ISO 13565-3, ISO 14660-1 and the following apply.
3.1
basic graphical symbol
〈surface texture〉 graphical symbol indicating that a requirement for surface texture exists
See Figure 1.
3) To be published. (Revision of ISO 10135:1994)
2 © ISO 2002 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 1302:2004
ISO 1302:2002(E)
3.2
expanded graphical symbol
〈surface texture〉 expanded basic graphical symbol indicating that material is either to be removed or not removed
in order to obtain the specified surface texture
See Figures 2 and 3.
3.3
complete graphical symbol
〈surface texture〉 basic or expanded graphical symbol expanded in order to facilitate the addition of complementary
surface texture requirements
See Figure 4.
3.4
surface (texture) parameter
parameter expressing a micro-geometrical property of a surface
NOTE See annex E for examples of surface texture parameter designations.
3.5
(surface) parameter symbol
symbol indicating the type of surface texture parameter
NOTE The parameter symbols consist of letters and numerical values (e.g. Ra, Ramax, Wz, Wz1max, AR, Rpk, Rpq).
4 Graphical symbols for the indication of surface texture
4.1 General
Requirements for surface texture are indicated on technical product documentation by several variants of graphical
symbols, each having its own significant meaning. The graphical symbols specified in 4.2 and 4.3 shall be
supplemented with complementary surface texture requirements in the form of numerical values, graphical symbols
and text (see also clauses 5, 6, 7 and 8). Attention is drawn to the fact that, in particular instances, the graphical
symbols may be used alone to convey a special meaning on the technical drawing (see clause 11).
4.2 Basic graphical symbol
The basic graphical symbol shall consist of two straight lines of unequal length inclined at approximately 60° to the
line representing the considered surface, as shown in Figure 1. The basic graphical symbol in Figure 1 should not
be used alone (without complementary information). Its use shall be to provide collective indications as shown in
Figures 23 and 26.
If the basic graphical symbol is used with complementary, supplemental information (see clause 5), then no further
decision is required as to whether removal of material is necessary for obtaining the specified surface (see 4.3.1) or
whether removal of material is not permitted for obtaining the specified surface (see 4.3.2).
Figure 1 — Basic graphical symbol for surface texture
© ISO 2002 – All rights reserved 3
---------------------- Page: 15 ----------------------
SIST EN ISO 1302:2004
ISO 1302:2002(E)
4.3 Expanded graphical symbols
4.3.1 Removal of material required
If removal of material — for example, by machining — is required for obtaining the specified surface, a bar shall be
added to the basic graphical symbol, as shown in Figure 2.
The expanded graphical symbol in Figure 2 should not be used alone (without complementary information).
Figure 2 — Expanded graphical symbol indicating removal of material required
4.3.2 Removal of material not permitted
If removal of material is not permitted for obtaining the specified surface, a circle shall be added to the basic
graphical symbol, as shown in Figure 3. For special use of this expanded graphical symbol, see clause 10.
Figure 3 — Expanded graphical symbol indicating removal of material not permitted
4.4 Complete graphical symbol
When complementary requirements for surface texture characteristics have to be indicated (see clause 6), a line
shall be added to the longer arm of any of the graphical symbols illustrated in Figures 1 to 3, as shown in Figure 4.
4)
For use in the written text of — for example, reports or contracts — the textual indication for Figure 4, a) is APA ,
5) 6)
for b) it is MRR and for c) NMR .
a) any manufacturing process permitted b) material shall be removed c) material shall not be removed
Figure 4 — Complete graphical symbol
4.5 Graphical symbol for “all surfaces around a workpiece outline”
When the same surface texture is required on all surfaces around a workpiece outline (integral features),
represented on the drawing by a closed outline of the workpiece, a circle shall be added to the complete graphical
symbol illustrated in Figure 4, as shown in Figure 5.
Surfaces shall be indicated independently if any ambiguity may arise from the all around indication.
4) Any process allowed.
5) Material removal required.
6) No material removed.
4 © ISO 2002 – All rights reserved
---------------------- Page: 16 ----------------------
SIST EN ISO 1302:2004
ISO 1302:2002(E)
NOTE The outline on the drawing represents the six surfaces shown on the 3D-representation of the workpiece (the front
and rear surfaces not included).
Figure 5 — Surface texture requirement for all six surfaces represented by outline on workpiece
5 Composition of complete graphical symbol for surface texture
5.1 General
In order to ensure that a surface texture requirement is unambiguous, it may be necessary, in addition to the
indication of both a surface texture parameter and its numerical value, to specify additional requirements (e.g.
transmission band or sampling length, manufacturing process, surface lay and its orientation and possible
machining allowances). It may be necessary to set up requirements for several different surface texture parameters
in order that the surface requirements ensure unambiguous functional properties of the surface. For more details
see annex D.
5.2 Position of complementary surface texture requirements
The mandatory positions of the various surface texture requirements in the complete graphical symbol are shown in
Figure 6.
Figure 6 — Positions (a to e) for location of complementary requirements
The complementary surface texture requirements in the form of
surface texture parameters,
numerical values, and
transmission band/sampling length,
shall be located at the specific positions in the complete graphical symbol in accordance with the following.
a) Position a — Single surface texture requirement
Indicate the surface texture parameter designation, the numerical limit value and the transmission
band/sampling length according to clause 6. To avoid misinterpretation, a double space (double blank) shall be
inserted between the parameter designation and the limit value.
© ISO 2002 – All rights reserved 5
---------------------- Page: 17 ----------------------
SIST EN ISO 1302:2004
ISO 1302:2002(E)
Generally, the transmission band or sampling length shall be indicated followed by an oblique stroke (/),
followed by the surface texture parameter designation, followed by its numerical value using one text string.
EXAMPLE 1 0,0025-0,8/Rz 6,8 (example with transmission band indicated).
EXAMPLE 2 -0,8/Rz 6,8 (example with only sampling length indicated).
Especially for the motif method, the transmission band shall be indicated, followed by an oblique stroke (/),
followed by the value of the evaluation length, followed by another oblique stroke, followed by the surface
texture parameter designation, followed by its numerical value.
EXAMPLE 3 0,008-0,5/16/R 10.
NOTE Generally, the transmission band is the wavelength range between two defined filters (see ISO 3274 and
ISO 11562) and, for the motif method, the wavelength range between two defined limits (see ISO 12085).
b) Position a and b — Two or more surface texture requirements
Indicate the first surface texture requirement at position “a” as in a). Indicate the second surface texture
requirement at position “b”. If a third requirement or more is to be indicated, the graphical symbol is to be
enlarged accordingly in the vertical direction, to make room for more lines. The position “a” and “b” are to be
moved upwards when the symbol is enlarged (see clause 6).
c) Position c — Manufacturing method
Indicate the manufacturing method, treatment, coatings or other requirements for the manufacturing process
etc. to produce the surface, for example, turned, ground, plated (see also clause 7).
d) Position d — Surface lay and orientation
Indicate the symbol of the required surface lay and the orientation, if any, of the surface lay, for example, “=”,
“X”, “M” (see also clause 8).
e) Position e — Machining allowance
Indicate the required machining allowance, if any, as a nu
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.