1、BRITISH STANDARD BS EN ISO 6284:1999 Construction drawings Indicationof limit deviations ICS 01.100.30BSENISO6284:1999 This British Standard, having been prepared under the directionof the Sector Committeefor Building and CivilEngineering, was publishedunder the authorityofthe Standards Committee an
2、dcomes into effect on 15October1999 BSI 03-2000 ISBN 0 580 35115 7 National foreword This British Standard reproduces verbatim ISO6284:1996 and implements it as the UK national standard. This standard, together with BS EN ISO4157-1:1999, BS EN ISO4157-2:1999, BS EN ISO4157-3:1999, BSEN ISO8560:1999
3、and BS EN ISO9431:1999 supersedes BS1192-1:1984 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee B/212, Tolerances, drawing practice, modular co-ordination, joints, project information and computer modelling, to Subcommittee B/212/2, Construction drawi
4、ng practice, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments an
5、d promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Standards Catalogue under the sect
6、ion entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application.
7、 Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN ISO title page, page 2, the ISO title page, pages ii to iv, pages 1 to4 anda back cover. This standard h
8、as been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSENISO6284:1999 BSI 03-2000 i Contents Page National foreword Inside front cover Foreword
9、 2 Foreword iii Text of ISO 6284 1ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO6284 July1999 ICS 01.100.30 English version Construction drawings Indication of limit deviations (ISO6284:1996) Dessins de gnie civil Indication des carts limites (ISO6284:1996) Zeichnungen fr das Bauwe
10、sen Eintragung von Grenzabmaen (ISO6284:1996) This European Standard was approved by CEN on11 June1999. 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.
11、 Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat 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 u
12、nder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Lu
13、xembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1999 CEN All rights of exploitation in any form an
14、d by any means reserved worldwide for CEN national Members. Ref. No. EN ISO6284:1999 EENISO6284:1999 BSI 03-2000 2 Foreword The text of the International Standard from Technical Committee ISO/TC10 “Technical drawings, product definition and related documentation” of the International Organization fo
15、r Standardization(ISO) has been taken over as an European Standard by CEN/CS. 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 January2000, and conflicting national standards shall be withdrawn at
16、the latest by January2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg
17、, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and theUnitedKingdom. Endorsement notice The text of the International Standard ISO6284:1996 has been approved by CEN as a European Standard without any modification. NOTENormative references to International Standards are listed in Annex Z
18、A (normative).EN ISO6284:1999 ii BSI 03-2000 Contents Page Foreword iii 1 Scope 1 2 Normative references 1 3 Definitions 1 4 General 1 5 Indication of limit deviations 1 Annex A (informative) Bibliography 3 Annex ZA (normative) Normative references to international publications withtheir relevant Eu
19、ropean publications 4 Figure 1 Examples of indications of limit deviations for size 2 Figure 2 Examples of limit deviations for position dimensions 2 Descriptors: Drawings, technical drawings, construction, buildings, civil engineering, dimensional tolerances, tolerances of position, form tolerances
20、, presentation.EN ISO 6284:1999 BSI 03-2000 iii 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 mem
21、ber 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 El
22、ectrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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 least75% of the member bodies casting
23、 a vote. International Standard ISO6284 was prepared by Technical Committee ISO/TC10, Technical drawings, product definition and related documentation, Subcommittee SC8, Construction documentation. This second edition cancels and replaces the first edition(ISO6284:1985), which has been technically r
24、evised. Annex A of this International Standard is for information only.iv blankEN ISO 6284:1999 BSI 03-2000 1 1 Scope This International Standard specifies methods for the indication of limit deviations on construction drawings. 2 Normative references The following standards contain provisions which
25、, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility o
26、f applying the most recent editions of the standards listed below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO286-1:1988, ISO system of limits and fits Part1: Bases of tolerances, deviations and fits. ISO1803:, Building construction Expression of dimensi
27、onal accuracy Vocabulary 1) . ISO4068:1978, Building and civil engineering drawings Reference lines. ISO9431:1990, Construction drawings Spaces for drawing and for text, and title blocks on drawings sheets. 3 Definitions For the purposes of this International Standard, the definitions given in ISO28
28、6-1 and ISO1803 apply. 4 General A limit deviation shall be indicated on a drawing only when there is a functional requirement to control dimension, orientation or form. 5 Indication of limit deviations 5.1 The following methods shall be used when requirements for accuracy are to be defined by limit
29、 deviations. The indication of limit deviations shall be a) a single reference in the space for text(seeISO9431) in the case of repetitive deviations; b) placed with, or adjacent to, the caption of the figure when limit deviation information applies only to sizes within that figure(for example, a cr
30、oss-section detail); c) placed with, or adjacent to, the size concerned when limit deviation information applies only to that size. 5.2 Limit deviations for size shall be indicated by the target size and the limit deviations. The target size and the values of limit deviations shall be given in milli
31、metres(seeFigure 1 and Figure 2). In the case of angles, the target size and the limit deviations should preferably be given in degrees, but may be given, if necessary, in gon. Limit deviation information which is shown on drawings should be given in accordance with the example shown in Figure 1a) f
32、or a symmetrical limit deviation and in accordance with Figure 1 b) or Figure 1 c) for an asymmetrical limit deviation. 5.3 Limit deviations for a position dimension are limit deviations for a dimension which locates one item in relation to another, for example, one reference line to another, a comp
33、onent to a reference lineseeFigure 2 a) and ISO4068 or a finished floor level to a datum levelseeFigure 2 b). Levels relate to site zero datum and are given in metres with three digits to the right of the decimal sign. 1) To be published. (Revision of ISO1803-1:1985, ISO1803-2:1986 and ISO4464:1980)
34、EN ISO 6284:1999 2 BSI 03-2000 Figure 1 Examples of indications of limit deviations for size Figure 2 Examples of limit deviations for position dimensionsEN ISO 6284:1999 BSI 03-2000 3 Annex A (informative) Bibliography 1 ISO129:1985, Technical drawings Dimensioning General principles, definitions,
35、methods of execution and special indications. 2 ISO406:1987, Technical drawings Tolerancing of linear and angular dimensions. 3 ISO1101:1983, Technical drawings Geometrical tolerancing Tolerancing of form, orientation, location and run-out Generalities, definitions, symbols, indications on drawings.
36、EN ISO 6284:1999 4 BSI 03-2000 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 appropri
37、ate 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 publicati
38、on referred to applies. Publication Year Title EN Year ISO286-1 1988 ISO system of limits and fits Part1:Bases of tolerances, deviations and fits EN20286-1 1993blankBS EN ISO 6284:1999 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body respon
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