1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 25178-3:2012Geometrical product specifications (GPS) Surface texture: ArealPart 3: Specification operators(ISO 25178-3:2012)BS EN ISO 25178-3:2012 BRITISH STANDARDNatio
2、nal forewordThis British Standard is the UK implementation ofEN ISO 25178-3:2012.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 pu
3、blication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012ISBN 978 0 580 61814 7 ICS 17.040.20 Compliance with a British Standard cannot confer im
4、munity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2012.Amendments issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 25178-3 July 2012 ICS 17.040.20
5、 English Version Geometrical product specifications (GPS) - Surface texture: Areal - Part 3: Specification operators (ISO 25178-3:2012) Spcification gomtrique des produits (GPS) - tat de surface: Surfacique - Partie 3: Oprateurs de spcification (ISO 25178-3:2012) Geometrische Produktspezifikation (G
6、PS) - Oberflchenbeschaffenheit: Flchenhaft - Teil 3: Spezifikationsoperatoren (ISO 25178-3:2012) This European Standard was approved by CEN on 6 July 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the s
7、tatus 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French,
8、 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 CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cr
9、oatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
10、 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 251
11、78-3:2012: EBS EN ISO 25178-3:2012EN ISO 25178-3:2012 (E) 3 Foreword This document (EN ISO 25178-3:2012) 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 January 2013, and conflicting national standards shall b
13、e withdrawn at the latest by January 2013. 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 Regul
14、ations, 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, It
15、aly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 25178-3:2012 has been approved by CEN as a EN ISO 25178-3:2012 without any modification. BS EN ISO 2517
16、8-3:2012ISO 25178-3:2012(E) ISO 2012 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope 12 Normative references . 13 Terms and definitions . 14 Complete specification operator . 24.1 General . 24.2 Method of extraction . 24.3 Association method 64.4 Filtration . 64.5 Definition are
17、a 75 General information 7Annex A (informative) Decision tree for complete specification operator 8Annex B (normative) Default attribute values for parameters from ISO 25178-2 9Annex C (normative) Default units for parameters from ISO 25178-2 11Annex D (informative) Relationship with surface texture
18、 profile parameters 14Annex E (informative) Relation to the GPS matrix model 16Bibliography .18BS EN ISO 25178-3:2012ISO 25178-3:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing I
19、nternational 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
20、 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 2.The main task of techni
21、cal 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 t
22、o the possibility that some of the 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.ISO 25178-3 was prepared by Technical Committee ISO/TC 213, Dimensional and geometrical product specifications and verific
23、ation.ISO 25178 consists of the following parts, under the general title Geometrical product specifications (GPS) Surface texture: Areal: Part 2: Terms, definitions and surface texture parameters Part 3: Specification operators Part 6: Classification of methods for measuring surface texture Part 70:
24、 Physical measurement standards Part 71: Software measurement standards Part 601: Nominal characteristics of contact (stylus) instruments Part 602: Nominal characteristics of non-contact (confocal chromatic probe) instruments Part 603: Nominal characteristics of non-contact (phase-shifting interfero
25、metric microscopy) instruments Part 604: Nominal characteristics of non-contact (coherence scanning interferometry) instruments Part 701: Calibration and measurement standards for contact (stylus) instrumentsThe following parts are under preparation: Part 1: Indication of surface texture Part 605: N
26、ominal characteristics of non-contact (point autofocus probe) instruments Part 606: Nominal characteristics of non-contact (focus variation) instrumentsiv ISO 2012 All rights reservedBS EN ISO 25178-3:2012ISO 25178-3:2012(E)IntroductionThis part of ISO 25178 is a geometrical product specification (G
27、PS) standard and is to be regarded as a general GPS standard (see ISO/TR 14638). It influences the chain link 3 of the chains of standards on areal surface texture.The ISO/GPS Masterplan given in ISO/TR 14638 gives an overview of the ISO/GPS system of which this document is a part. The fundamental r
28、ules of ISO/GPS given in ISO 8015 apply to this document and the default decision rules given in ISO 14253-1 apply to specifications made in accordance with this document, unless otherwise indicated.For more detailed information on the relation of this part of ISO 25178 to the GPS matrix model, see
29、Annex E.This part of ISO 25178 specifies the specification operators according to ISO 17450-2. ISO 2012 All rights reserved vBS EN ISO 25178-3:2012BS EN ISO 25178-3:2012Geometrical product specifications (GPS) Surface texture: Areal Part 3:Specification operators1 ScopeThis part of ISO 25178 specifi
30、es the complete specification operator for surface texture (scale limited surfaces) by areal methods.2 Normative referencesThe following referenced documents are indispensable for the application of this standard. For dated references, only the cited editions apply. For undated references, the lates
31、t edition of the referenced document (including any amendments) applies.ISO 14406:2010, Geometrical Product Specifications (GPS) ExtractionISO 14660-1:1999, Geometrical Product Specifications (GPS) Geometrical features Part 1: General terms and definitionsISO/TS 16610-1:2006, Geometrical Product Spe
32、cifications (GPS) Filtration Part 1: Overview and basic conceptsISO 16610-21:2011, Geometrical product specifications (GPS) Filtration Part 21: Linear profile filters: Gaussian filtersISO 17450-1:2011, Geometrical Product Specifications (GPS) General concepts Part 1: Model for geometrical specificat
33、ion and verificationISO 17450-2:1), Geometrical Product Specifications (GPS) General concepts Part 2: Basic tenets, specifications, operators, uncertainties and ambiguitiesISO 25178-2:2012, Geometrical Product Specifications (GPS) Surface texture: Areal Part 2: Terms. definitions and surface texture
34、 parameters3 Terms and definitionsFor the purposes of this document, the terms and definitions given ISO 14660-1, ISO 16610-1, ISO/TS 14406, ISO 17450-1, ISO 17450-2 and ISO 25178-2 and the following apply.3.1lateral period limitspatial period of a sinusoidal profile at which the optical response fa
35、lls to 50 %NOTE The lateral period limit depends on the heights of surface features and the optical method used to probe the surface.1) To be published.INTERNATIONAL STANDARD ISO 25178-3:2012(E) ISO 2012 All rights reserved 1BS EN ISO 25178-3:2012ISO 25178-3:2012(E)4 Complete specification operator4
36、.1 GeneralThe complete specification operator (see ISO 17450-2) consists of all the operations required for an unambiguous specification. It consists of a full set of unambiguous specification operations in an unambiguous order. For areal surface texture, the complete specification operator defines
37、the type of surface, method of extraction, association method and filtration for surface texture by areal methods.If form error is to be included in the measurand, then a S-F surface shall be specified; otherwise, an S-L surface shall be specified.4.2 Method of extraction4.2.1 Evaluation area4.2.1.1
38、 GeneralThe evaluation area consists of a rectangular portion of the surface over which an extraction is made.The orientation of the evaluation area shall be controlled by the specification.NOTE 1 If the nesting index is the same in orthogonal directions, then the orientation does not matter.NOTE 2
39、The orientation of the evaluation area is typically influenced by the form; this means that the sides of the rectangular area are parallel/orthogonal to the nominal geometry (e.g. cylinder axis, sides of a rectangular flat, etc.).4.2.1.2 S-F surfaceFor an S-F surface, if not otherwise specified, the
40、 evaluation area shall be a square. If the F-operation is a filtration operation, then the length of the sides of the square evaluation area is the same length as the filter “nesting index”. If the F-operation is an association operation, then the length of the side of the square evaluation area is
41、used as a substitute for the F-operation nesting index value. This chosen value for the F-operation nesting index is used for all subsequent operations.The value of the nesting index for the F-operation is normally chosen from the following series:.; 0,1 mm; 0,2 mm; 0,25 mm; 0,5 mm; 0,8 mm; 1,0 mm;
42、2,0 mm; 2,5 mm; 5,0 mm; 8,0 mm; 10 mm; .NOTE 1 An example of an F-operation with a nesting index is a spline filter. The total least squares fit of the nominal form is an example of an F-operation without a predefined nesting index.NOTE 2 The value of the F-operation nesting index is typically chose
43、n to be five times the scale of the coarsest structure of interest.4.2.1.3 S-L surfaceFor an S-L surface, if not otherwise specified, the evaluation area shall be a square whose sides are the same length as the L-filter nesting index value.The value of the nesting index for the L-filter is normally
44、chosen from the following series:, 0,1 mm; 0,2 mm; 0,25 mm; 0,5 mm; 0,8 mm; 1,0 mm; 2,0 mm;2,5 mm; 5,0 mm; 8,0 mm; 10 mm; .NOTE The value of the L-filter nesting index is typically five times the scale of the coarsest structure of interest.2 ISO 2012 All rights reservedBS EN ISO 25178-3:2012ISO 2517
45、8-3:2012(E)4.2.2 Type of surfaceThe default surface is the mechanical surface (see ISO 14406) obtained with a radius chosen in accordance with the F-operation or L-filter and S-filter nesting index values given in Tables 1 and 2. ISO 2012 All rights reserved 3BS EN ISO 25178-3:2012ISO 25178-3:2012(E
46、)Table 1 Relationships between the F-operation or L-filter and S-filter nesting index values and the bandwidth ratioF-operation or L-filter nesting index valueS-filter nesting index valueApproximate bandwidth ratio between the F-operation or L-filter and S-filter nesting index valuesmm mm 0,10,001 1
47、00:10,000 5 200:10,000 2 500:10,000 1 1 000:10,20,002 100:10,001 200:10,000 5 400:10,000 2 1 000:10,250,002 5 100:10,000 8 300:10,000 25 1 000:10,50,005 100:10,002 250:10,001 500:10,000 5 1 000:10,80,008 100:10,002 5 300:10,000 8 1 000:110,01 100:10,005 200:10,002 500:10,001 1 000:120,02 100:10,01 2
48、00:10,005 400:10,002 1 000:12,50,025 100:10,008 300:10,002 5 1 000:150,05 100:10,02 250:10,01 500:10,005 1 000:180,08 100:10,025 300:10,008 1 000:1 4 ISO 2012 All rights reservedBS EN ISO 25178-3:2012ISO 25178-3:2012(E)4.2.3 S-filter4.2.3.1 GeneralThe default S-filter is an areal Gaussian filter. Th
49、e value of the S-filter nesting index (cut-off) (see ISO/TS 16610-1) in the x-direction/y-direction is normally chosen from the following series:, 0,000 5 mm; 0,000 8 mm; 0,001 mm; 0,002 mm; 0,002 5 mm; 0,005 mm; 0,008 mm; 0,01 mm; .4.2.3.2 S-filter relationships for mechanical surfacesFor mechanical surfaces, the maximum values for the sampling distance and sp
