1、BS EN ISO 14405-3:2017Geometrical productspecifications (GPS) Dimensional tolerancingPart 3: Angular sizes (ISO 14405-3:2016)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 14405-3:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implem
2、entation of EN ISO 14405-3:2017. It is identical to ISO 14405-3:2016.The UK participation in its preparation was entrusted to Technical Committee TDW/4, Technical Product Realization.A list of organizations represented on this committee can be obtained on request to its secretary.This publication do
3、es not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017. Published by BSI Standards Limited 2017ISBN 978 0 580 80929 3 ICS 17.040.10; 17.040.40 Compliance with a British Standard cannot confer imm
4、unity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2017.Amendments/Corrigenda issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 14405-3 January 2017 ICS 17.
5、040.40 English Version Geometrical product specifications (GPS) - Dimensional tolerancing - Part 3: Angular sizes (ISO 14405-3:2016) Spcification gomtrique des produits (GPS) - Tolrancement dimensionnel - Partie 3: Tailles angulaires (ISO 14405-3:2016) Geometrische Produktspezifikationen (GPS) - Dim
6、ensionelle Tolerierung - Teil 3: Winkelgrenmae (ISO 14405-3:2016) This European Standard was approved by CEN on 2 October 2016. 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
7、 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 o
8、ther 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 Republi
9、c, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUR
10、OPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14405-3:201
11、7 EBS EN ISO 14405-3:2017EN ISO 14405-3:2017 (E) 3 European foreword This document (EN ISO 14405-3:2017) 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 geo
12、metrical 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 July 2017, and conflicting national standards shall be w
13、ithdrawn at the latest by July 2017. 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. According to the CEN-CENELEC Internal Regulations
14、, 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, L
15、atvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 14405-3:2016 has been approved by CEN as EN ISO 14405-3:2017 without any modification. BS EN
16、ISO 14405-3:2017ISO 14405-3:2016(E)Foreword ivIntroduction v1 Scope . 12 Normative references 23 Terms and definitions . 24 Specification modifiers and symbols .115 Default specification operator for angular size 135.1 General 135.2 ISO default specification operator for angular size 145.3 Drawing-s
17、pecific default specification operator for angular size 156 Drawing indication 166.1 Drawing indication for special specification operators for angular size .166.2 Indication of the toleranced feature on which the angular size characteristic is defined 17Annex A (normative) Association criteria for
18、two-line angular size (for a revolute or prismatic feature of size) 18Annex B (informative) Differences between two planes considered as an angular feature of size and two planes considered as two single features .19Annex C (informative) Overview diagram for angular size 20Annex D (informative) Rela
19、tion to ISO GPS matrix .21Bibliography .22 ISO 2016 All rights reserved iiiContents PageBS EN ISO 14405-3:2017ISO 14405-3:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internat
20、ional 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 I
21、SO, 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, Pa
22、rt 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 (see www.iso.org/directives).Attention is drawn to the possibility that some of the
23、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 rec
24、eived (see 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 ISOs ad
25、herence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document is Technical Committee ISO/TC 213, Dimensional and geometrical product specifications and verification.IS
26、O 14405 consists of the following parts, under the general title Geometrical product specification (GPS) Dimensional tolerancing : Part 1: Linear sizes Part 2: Dimensions other than linear sizes Part 3: Angular sizesiv ISO 2016 All rights reservedBS EN ISO 14405-3:2017ISO 14405-3:2016(E)Introduction
27、This part of ISO 14405 is a geometrical product specification (GPS) standard and is to be regarded as a general GPS standard (see ISO 14638). In the general GPS matrix, it influences chain links “Symbols and indications”, “Feature requirements” and “Feature properties” of the size chain of standards
28、.The ISO/GPS Masterplan given in ISO 14638 gives an overview of the ISO/GPS system of which this part of ISO 14405 is a part. The fundamental rules of ISO/GPS given in ISO 8015 apply to this part of ISO 14405 and the default decision rules given in ISO 14253-1 apply to specifications made in accorda
29、nce with this part of ISO 14405, unless otherwise indicated.For more detailed information on the relation of this part of ISO 14405 to other standards and to the GPS matrix model, see Annex D. ISO 2016 All rights reserved vBS EN ISO 14405-3:2017BS EN ISO 14405-3:2017Geometrical product specification
30、s (GPS) Dimensional tolerancing Part 3: Angular sizes1 ScopeThis part of ISO 14405 establishes the default specification operator for angular size and defines a number of special specification operators for features of angular size: cone (truncated, i.e. frustum, or not), wedge (truncated or not), t
31、wo opposite straight lines (intersection of a wedge/truncated wedge and a plane perpendicular to the intersection straight line of the two planes of the wedge/truncated wedge, intersection of a cone/frustum and a plane containing the axis of revolution of the cone/frustum). See Figure 1 and Figure 2
32、.This part of ISO 14405 also defines the specification modifiers and the drawing indications for these angular sizes.This part of ISO 14405 covers the following angular sizes: local angular size: angular size between two lines; portion angular size; global angular size: direct global angular size: l
33、east squares angular size; minimax angular size; rank order angular size/indirect global angular size: maximum angular size; minimum angular size; average angular size; range of angular sizes; mid-range angular size; median angular size; standard deviation of angular size.This part of ISO 14405 defi
34、nes the meaning of tolerances of angular sizes indicated as + and/or - limit deviations, e.g. 0/-0,5, or indicated with upper limit of size (ULS) and/or lower limit of size (LLS), e.g. 35 max. or 15 min., 34/36,INTERNATIONAL STANDARD ISO 14405-3:2016(E) ISO 2016 All rights reserved 1BS EN ISO 14405-
35、3:2017ISO 14405-3:2016(E) with or without modifiers.This part of ISO 14405 provides a set of tools to express several types of angular size characteristics. It does not give any information on the relationship between a function or a use and an angular size characteristic.2 Normative referencesThe f
36、ollowing documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 8015, Geo
37、metrical product specifications (GPS) Fundamentals Concepts, principles and rulesISO 17450-1, Geometrical product specifications (GPS) General concepts Part 1: Model for geometrical specification and verificationISO 17450-2, Geometrical product specifications (GPS) General concepts Part 2: Basic ten
38、ets, specifications, operators, uncertainties and ambiguitiesISO 17450-3, Geometrical product specification (GPS) General concepts Part 3: Toleranced FeaturesISO 14405-1:2016, Geometrical product specifications (GPS) Dimensional tolerancing Part 1: Linear sizesISO 14405-2, Geometrical product specif
39、ications (GPS) Dimensional tolerancing Part 2: Dimensions other than linear sizes3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 8015, ISO 17450-1, ISO 17450-2, ISO 17450-3, ISO 14405-1, ISO 14405-2 and the following apply.For association criteria, it
40、 is assumed that the terms “least squares” and “Gaussian” are equivalent, as well as “minimax” and “Chebyshev”. In this document, the terms “least squares” and “minimax” are retained. The least squares criterion is understood without material constraint throughout this part of ISO 14405.3.1angular s
41、izeangular dimension of a cone or between two coplanar opposite straight lines or between two opposite non parallel planesNote 1 to entry: The angular size is defined from nominal features or from associated features which are angular features of size.Note 2 to entry: See example of angular size on
42、Figure 1 and Figure 2.Note 3 to entry: Definition of “angular feature of size (feature of angular size)” is given in ISO 17450-1, the angle dimension cannot be 0 or 180.Note 4 to entry: Angular features of size are of two types. Revolute angular feature of size: a cone or a frustum. Two opposite str
43、aight lines are established from a longitudinal section of a cone/frustum with a plane containing the associated axis of revolution of the cone/frustum. Prismatic angular feature of size: a wedge (truncated or not). Two opposite straight lines are established from a cross section of a wedge/truncate
44、d wedge with a plane perpendicular to the intersection straight line of the two associated planes of the wedge/truncated wedge.2 ISO 2016 All rights reservedBS EN ISO 14405-3:2017ISO 14405-3:2016(E)Note 5 to entry: Figure 1 and Figure 2 illustrate angular features of size type wedge, cone, frustum a
45、nd two lines.Note 6 to entry: Figure 3a and Figure 3b illustrate the case of an angular feature of size and an angular distance between two planes which is not an angular feature of size and shows that an angular feature of size exists when the material directions are opposed (when one of the featur
46、es is rotated around their intersection line to coincide with the other feature, then the material is on the opposite sides for the two features). See also Annex B.Note 7 to entry: Envelope requirement cannot be applied for angular features of size.a) Wedge b) Conec) Truncated wedge d) FrustumFigure
47、 1 Examples of areal angular features of sizea) Two opposite lines of a wedge b) Two opposite generatrix lines of a coneFigure 2 Examples of angular features of size ISO 2016 All rights reserved 3BS EN ISO 14405-3:2017ISO 14405-3:2016(E)a) Example # 1 b) Example # 2Key1 Feature of angular size2 Non-
48、feature of angular sizeFigure 3 Examples of possible angular features of size3.2local angular sizelocal angular size characteristicangular size characteristic having a unique value for a specific location and a non-unique value along and/or around the angular feature of sizeNote 1 to entry: For a gi
49、ven feature, an infinite number of local angular sizes exists.Note 2 to entry: In Figure 4, an example of local angular size is shown.Note 3 to entry: Two local angular size associations can be specified: least squares local angular size and minimax local angular size. See Annex A.4 ISO 2016 All rights reservedBS EN ISO 14405-3:2017ISO 14405-3:2016(E)Key1 real angular feature of size2 associated planes with (1)3 intersection straight line of (2)4 perpendicular cross section to (3)5 t
