1、July 2011 Translation by DIN-Sprachendienst.English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 0
2、1.040.17; 17.040.30!$sd“1805665www.din.deDDIN EN ISO 12781-1Geometrical product specifications (GPS) Flatness Part 1: Vocabulary and parameters of flatness (ISO 12781-1:2011)English translation of DIN EN ISO 12781-1:2011-07Geometrische Produktspezifikation (GPS) Ebenheit Teil 1: Begriffe und Kenngre
3、n der Ebenheit (ISO 12781-1:2011)Englische bersetzung von DIN EN ISO 12781-1:2011-07Spcification gomtrique des produits (GPS) Planit Partie 1: Vocabulaire et paramtres de planit (ISO 12781-1:2011)Traduction anglaise de DIN EN ISO 12781-1:2011-07SupersedesDIN ISO/TS 12781-1:2008-05www.beuth.deDocumen
4、t comprises 19 pagesIn case of doubt, the German-language original shall be considered authoritative.07.11 DIN EN ISO 12781-1:2011-07 2 National foreword This standard has been prepared by Technical Committee ISO/TC 213 “Dimensional and geometrical product specifications and verification” in collabo
5、ration with Technical Committee CEN/TC 290 “Dimensional and geometrical product specification and verification” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Technische Grundlagen (Fundamental Technical Standards Committee), Working Com
6、mittee NA 152-03-02-13 UA Formprfung (GMA 3.21). The International Standards ISO 12180-1 and ISO 12180-2 ISO 12181-1 and ISO 12181-2 ISO 12780-1 and ISO 12780-2 ISO 12781-1 and ISO 12781-2 defining the vocabulary (Parts 1) and the principles of measurement (Parts 2) of deviations from roundness, cyl
7、indricity, straightness and flatness have been prepared by Technical Committee ISO/TC 213 “Dimensional and geometrical product specifications and verification”. The responsible German body involved in its preparation was the Joint Working Committee DIN NA 152-03-02-13 UA/VDI/VDE-GMA 3.21 Formprfung
8、which recommends: Users of this standard should note that the provisions in Part 2 of the respective standard regarding probe tip radius, probing force, defaults for filter undulation, method of association are representative of idealized measurement conditions. As a basis for the practical implemen
9、tation, the Joint Working Committee established the VDI/VDE 2631 guideline series on form measurement. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 1101 DIN EN ISO 1101 ISO 8015 DIN EN ISO 80151)ISO 11562 DIN EN ISO 11562 ISO 12180-1
10、 DIN EN ISO 12180-1 ISO 12181-1 DIN EN ISO 12181-1 ISO 12780-1 DIN EN ISO 12780-1 ISO 12780-2 DIN EN ISO 12780-2 ISO 12781-1 DIN EN ISO 12781-1 ISO 14253-1 DIN EN ISO 14253-1 ISO 14660-1 DIN EN ISO 14660-1 ISO 14660-2 DIN EN ISO 14660-2 1) In preparation. DIN EN ISO 12781-1:2011-07 3 ISO/TR 14638 DI
11、N V 32950 ISO 17450-1 DIN EN ISO 17450-12)ISO 17450-2 DIN EN ISO 17450-23)Amendments This standard differs from DIN ISO/TS 12781-1:2008-05 as follows: a) the Technical Specification has been adopted as an International Standard; b) the standard has been technically revised. Previous editions DIN ISO
12、/TS 12781-1: 2005-07, 2008-05 2) In preparation. 3) In preparation. DIN EN ISO 12781-1:2011-07 4 National Annex NA (informative) Bibliography 1 DIN EN ISO 1101, Geometrical Product Specifications (GPS) Geometrical tolerancing Tolerances of form, orientation, location and run-out 2 DIN EN ISO 8015, G
13、eometrical product specifications (GPS) Fundamentals Concepts, principles and rules 3 DIN EN ISO 11562, Geometrical Product Specifications (GPS) Surface texture: Profile method Metrological characteristics of phase correct filters 4 DIN EN ISO 12180-1, Geometrical product specifications (GPS) Cylind
14、ricity Part 1: Vocabulary and parameters of cylindrical form 5 DIN EN ISO 12181-1, Geometrical product specifications (GPS) Roundness Part 1: Vocabulary and parameters of roundness 6 DIN EN ISO 12780-1, Geometrical product specifications (GPS) Straightness Part 1: Vocabulary and parameters of straig
15、htness 7 DIN EN ISO 12780-2, Geometrical product specifications (GPS) Straightness Part 2: Specification operators 8 DIN EN ISO 12781-1, Geometrical product specifications (GPS) Flatness Part 2: Specification operators 9 DIN EN ISO 14253-1, Inspection by measurement of workpieces and measuring equip
16、ment Part 1: Decision rules for proving conformance or non-conformance with specifications 10 DIN EN ISO 14660-1, Geometrical Product Specifications (GPS) Geometrical features Part 1: General terms and definitions 11 DIN EN ISO 14660-2, Geometrical Product Specifications (GPS) Geometrical features P
17、art 2: Extracted median line of a cylinder and a cone, extracted median surface, local size of an extracted feature 12 DIN V 32950, Geometrical product specification (GPS) Masterplan 13 DIN EN ISO 17450-1, Geometrical product specifications (GPS) General concepts Part 1: Model for geometrical specif
18、ication and verification 14 DIN EN ISO 17450-2, Geometrical product specifications (GPS) General concepts Part 2: Basic tenets, specifications, operators and uncertainties EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12781-1 April 2011 ICS 01.040.17; 17.040.20 Supersedes CEN ISO/TS 12781
19、-1:2007English Version Geometrical product specifications (GPS) - Flatness - Part 1: Vocabulary and parameters of flatness (ISO 12781-1:2011) Spcification gomtrique des produits (GPS) - Planit - Partie 1: Vocabulaire et paramtres de planit (ISO 12781-1:2011) Geometrische Produktspezifikation (GPS) -
20、 Ebenheit - Teil 1: Begriffe und Kenngren der Ebenheit (ISO 12781-1:2011) This European Standard was approved by CEN on 26 February 2011. 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 nationa
21、l standard 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 versio
22、n in any other 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, Cze
23、ch Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUR
24、OPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 12781-1:2011: EContents Page Foreword3 Introduction .4 1 Scope 5 2 N
25、ormative references 5 3 Terms and definitions .5 3.1 General terms.5 3.2 Terms relating to the surface .6 3.3 Terms relating to the reference plane7 3.4 Parameters .9 4 Straightness deviations 9 Annex A (informative) Mathematical definition of flatness tolerances of nominal integral features .10 Ann
26、ex B (informative) Synoptic tables of terms, abbreviations and parameters.11 Annex C (informative) Relationship to the GPS matrix model13 Bibliography 15 EN ISO 12781-1:2011 (E) DIN EN ISO 12781-1:2011-07 2 Foreword This document (EN ISO 12781-1:2011) has been prepared by Technical Committee ISO/TC
27、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 nationa
28、l standard, either by publication of an identical text or by endorsement, at the latest by October 2011, and conflicting national standards shall be withdrawn at the latest by October 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
29、rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes CEN ISO/TS 12781-1:2007. ISO 12781 consists of the following parts, under the general title Geometrical product specifications (GPS) Flatness: Part 1: Vocabulary and param
30、eters of flatness Part 2: Specification operators According to the CEN/CENELEC Internal Regulations, 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,
31、France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 12781-1:2011 has been approved by CEN as a EN ISO
32、 12781-1:2011 without any modification. EN ISO 12781-1:2011 (E) DIN EN ISO 12781-1:2011-07 3 Introduction This part of ISO 12781 is a geometrical product specification (GPS) standard and is to be regarded as a general GPS standard (see ISO/TR 14638). It influences chain link 2 of the chain of standa
33、rds on form of a surface (independent of a datum). The ISO/GPS Masterplan given in ISO/TR 14638 gives an overview of the ISO/GPS system of which this part of ISO 12781 is a part. The fundamental rules of ISO/GPS given in ISO 8015 apply to this part of ISO 12781 and the default decision rules given i
34、n ISO 14253-1 apply to specifications made in accordance with this part of ISO 12781, unless otherwise indicated. For more detailed information on the relationship of this part of ISO 12781 to other standards and the GPS matrix model, see Annex C. This part of ISO 12781 defines terms and concepts ne
35、cessary for defining the specification operators according to ISO 17450-2 for flatness of integral features. Extracting data always involves applying a certain filtering process. An additional filtering of the extracted data might or might not be applied. This additional filter can be a mean line fi
36、lter (Gaussian, spline, wavelet, etc.) or a non-linear filter (e.g. morphological filter). The type of filtering influences the definition of flatness and the specification operators and, therefore, needs to be stated unambiguously. This part of ISO 12781 is not intended to disallow any means of mea
37、suring flatness. EN ISO 12781-1:2011 (E) DIN EN ISO 12781-1:2011-07 4 1 Scope This part of ISO 12781 defines the terms and concepts related to flatness of individual complete integral features only. 2 Normative references The following referenced documents are indispensable for the application of th
38、is document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 14660-1:1999, Geometrical Product Specifications (GPS) Geometrical features Part 1: General terms and definitions ISO 14660
39、-2:1999, Geometrical Product Specifications (GPS) Geometrical features Part 2: Extracted median line of a cylinder and a cone, extracted median surface, local size of an extracted feature ISO 17450-1:1), Geometrical Product Specifications (GPS) General concepts Part 1: Model for geometrical specific
40、ation and verification 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 14660-1, ISO 14660-2, ISO 17450-1 and the following apply. 3.1 General terms 3.1.1 flatness property of a plane 3.1.2 nominal plane mathematically defined plane as specified by th
41、e design 1) To be published. (Revision of ISO/TS 17450-1:2005). EN ISO 12781-1:2011 (E) DIN EN ISO 12781-1:2011-07 5 3.2 Terms relating to the surface 3.2.1 extracted surface flatness digital representation of the real surface See Figure 1. NOTE The extraction conventions for flatness are given in I
42、SO 12781-2. This extracted surface is an extracted integral feature as defined in ISO 14660-1. Key 1 extracted surface 2 real surface Figure 1 Extracted surface 3.2.2 flatness surface extracted surface (type plane) intentionally modified by a filter NOTE 1 This is the surface to which the concepts a
43、nd parameters of this part of ISO 12781 can be applied. NOTE 2 The areal Gaussian filter is a convolution of two orthogonal profile Gaussian filters. 3.2.3 local flatness deviation deviation of a point on a flatness surface from a reference plane, the deviation being normal to the reference plane Se
44、e Figure 2. NOTE 1 The deviation is negative if from the reference plane the point lies in the direction of the material. NOTE 2 For reference plane, see 3.3.1. EN ISO 12781-1:2011 (E) DIN EN ISO 12781-1:2011-07 6 Key 1 any reference plane aNegative local flatness deviation. bPositive local flatness
45、 deviation. Figure 2 Local form deviation for flatness 3.3 Terms relating to the reference plane 3.3.1 reference plane associated plane fitting the flatness surface in accordance with specified conventions, to which the deviations from flatness and the flatness parameters are referred 3.3.1.1 minimu
46、m zone reference planes two parallel planes enclosing the flatness surface and having the least separation NOTE The abbreviated term MZ is used to refer to minimum zone reference elements. See Figure 3. 3.3.1.1.1 outer minimum zone reference plane minimum zone reference plane outside the material Se
47、e Figure 3. 3.3.1.1.2 inner minimum zone reference plane minimum zone reference plane inside the material See Figure 3. 3.3.1.1.3 mean minimum zone reference plane arithmetic mean plane of the minimum zone reference planes See Figure 3. EN ISO 12781-1:2011 (E) DIN EN ISO 12781-1:2011-07 7 Key 1 oute
48、r minimum zone reference plane 2 mean minimum zone reference plane 3 inner minimum zone reference plane aLeast separation. Figure 3 Minimum zone reference planes 3.3.1.2 least squares reference plane plane such that the sum of the squares of the local flatness deviations is a minimum NOTE The abbrev
49、iated term LS is used to refer to least squares reference elements and the abbreviated term G (for Gaussian) is used as a prefix for parameters based on least squares reference elements. See Figure 4. Key 1 least squares reference plane aNegative local flatness deviation. bPositive local flatness deviation. Figure 4 Least squares reference plane EN ISO 12781-1:2011 (E) DIN EN ISO 12781-1:2011-07 8 3.4 Parameters 3.4.1 peak-to-valley fla
