1、BRITISH STANDARD Fasteners - Acceptance inspection The European Standard EN IS0 3269:2000 has the status of a British Standard ICs 21.060.01 BS EN IS0 3269:2001 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN IS0 3269:2001 This British Standard, having been prepared unde
2、r the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 August 2001 National foreword This British Standard is the official English language version of EN IS0 3269:2000. It is identical with IS0 3269:2000. CAUTION:
3、 This Standard permits the supply of Fasteners with major defects, including Mechanical Properties, outside the specified ranges. The UK participation in its preparation was entrusted to Technical Committee FME/9, Bolts, nuts and Accessories (+ present to the responsible internationallEuropean commi
4、ttee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represented on this committee can be obtained on request to its secretary. Cross-ref
5、erences The British Standards which implement international or European i;Ub!ictions referred to in this document mzy be four?d in the BSI Standards Catalogue under the section entitled ”international Standards Correspondence Index”, or by using the “Find facility of the BSI Standards Electronic Cat
6、alogue. 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. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document co
7、mprises a front cover, an inside front cover, the EN IS0 title page, the EN IS0 foreword page, the IS0 title page, pages ii to v, a blank page, pages 1 to 17, the Annex ZA (2 pages) and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amend
8、ments issued since publication Amd. No. IDate I Comments O BSI 07-2001 ISBN O 580 38164 1 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM O EN IS0 3269 June 2000 ICs 21.060.01 English version Fasteners - Acceptance inspection (IS0 3269:2000) Elments de fixation - Contrle de rception (IS0 3269:2000
9、) Mechanische Verbindungselemente - Annahmeprfung (IS0 3269:2000) This European Standard was approved by CEN on 25 May 2000. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard wit
10、hout any alteration. 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
11、made by translation under 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, Czech Republic, Denmark, Finland, France, Germany, Greece, Icela
12、nd, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. 0 EUROPEAN COMMiTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMITE EUROPEEN DE NORMALISATION Central Secretariat: rue de Stassart, 36 B-1050 Brussels O 2000 CEN All rights of expl
13、oitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN IS0 3269:2000 E EN IS0 3269:2000 Foreword The text of the International Standard IS0 3269:2000 has been prepared by Technical Committee ISOTTC 2 “Fasteners“ in collaboration with Technical Committee CENTTC
14、 185 “Threaded and non-threaded mechanical fasteners and accessories“, the secretariat of which is held by DIN. 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 December 2000, and conflicting natio
15、nal standards shall be withdrawn at the latest by December 2000. According to the CENKENELEC 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, Greec
16、e, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard IS0 3269:2000 was approved by CEN as a European Standard without any modification. NOTE: Normative references to Interna
17、tional Standards are listed in annex ZA (normative). EN IS0 3269:2000 I NTE R NATI O N AL IS0 STANDARD 3269 Third edition 2000-06-01 Fasteners - Acceptance inspection lment de fixation - Contrle de rception Reference number IS0 3269:2000(E) EN IS0 3269:2000 ii Contents EN IS0 3269:2000 Page Foreword
18、 .,.iv Introduction . v 1 Scope 1 2 Normative references . 3 Terms and definitions . 3 4 General principles and requirements . , . , 4 5 Acceptance inspection procedure for fastener characteristics , 5 Annex A (informative) Recommendations for acceptance-inspection procedures (for example, for dimen
19、sional characteristics) 1 1 Annex B (informative) Guidance and explanation concerning the principles of this International Standard ,.,.,.,14 Bibliography . . 17 O iii EN IS0 3269:2000 Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards b
20、odies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 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 organizati
21、ons, governmental and non-governmental, in liaison with ISO, also take part in the work. IS0 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
22、 ISO/IEC Directives, Part 3. 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. O Attention is drawn to the possibility that
23、 some of the elements of this International Standard may be the subject of patent rights. IS0 shall not be held responsible for identifying any or all such patent rights. International Standard IS0 3269 was prepared by Technical Committee ISO/TC 2, Fasteners. nis third ediiion cacis and replaces the
24、 second ediiion (IS0 3269:1988), which has been technically revised. Annexes A and B of this International Standard are for information only. iv Introduction Although every fastener should meet all the requirements of the standard to which it is specified, in mass production this is not always possi
25、ble. The manufacturer is expected to take due care during all stages of production so that the risk of parts that do not satisfy requirements is minimized. Nevertheless, the control processes used for that purpose are not the subject of this International Standard. The purchaser may wish to confirm
26、whether, considering the limitations of inspection by attributes of a fastener lot, it is reasonable to assume that the delivered fasteners were made to specification. In any case, it must be recognised that quality assessment of this sort cannot provide complete confidence that nonconforming fasten
27、ers do not exist within a production lot. It is desirable that both supplier and purchaser possess a clear understanding of the quality-assessment processes to be used by the purchaser. Consequently, this International Standard defines those requirements to be applied by the purchaser where no other
28、 prior agreement exists. However, specification of acceptable quality level (AQL) values does not imply the suppliers right to knowingly supply a nonconforming unit. NOTE A new IS0 International Standard is to be developed to take into account fasteners produced under in-process control and a certif
29、ied quality assurance system operated by the manufacturer. The new standard will also cover special agreements for selected characteristics. V EN IS0 3269:2000 EN IS0 3269:2000 Fasteners - Acceptance inspection 1 Scope 1.1 This International Standard specifies the acceptance inspection procedure tha
30、t the purchaser of fasteners must follow in order to determine whether a lot of fasteners will be accepted or rejected in cases where no other such procedure was agreed with the supplier at the time the fasteners were ordered. Additional requirements for acceptance may be included in a specific prod
31、uct standard (for example, one on prevailing torque-type nuts). The same procedure is also to be applied in cases where conformance to specification is disputed. 1.2 This International Standard is applicable to bolts, screws, studs, nuts, pins, washers, blind rivets and other related fasteners not i
32、ntended for high volume machine assembly, special-purpose applications or specially engineered applications requiring greater in-process control and lot traceability (see the note in the introduction). The procedure for these products shall be agreed upon by the supplier and the purchaser prior to t
33、he confirmation of the order. 1.3 any particular in-process control procedure or inspection during production. This International Standard is applicable only to fully manufactured products; it neither implies nor includes 1.4 The production of accessories, services and partially fabricated parts (fo
34、r example, washers, nuts, plating, heat treatment and blanks) for use in the manufacture of fasteners may be subcontracted to other suppliers by the fastener supplier. Nevertheless, the supplier of the final, finished product shall be solely responsible for the fasteners quality. The requirements of
35、 this International Standard apply only to the condition of fasteners at the time of delivery. Any process carried out after receipt (for example, plating) will invalidate the requirements of this International Standard. 1.5 Standard is based. Annex B (informative) offers guidance to, and an explana
36、tion of, the principles upon which this International 2 Normative references e 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 the
37、se 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 referr
38、ed to applies. Members of IS0 and IEC maintain registers of currently valid International Standards. IS0 898-1 :1999, Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studs. IS0 898-2:1992, Mechanical properties of fasteners - Part2: Nuts with speci
39、fied proof load values - Coarse thread. IS0 898-5:1998, Mechanical properties of fasteners made of carbon steel and alloy steel - Part 5: Set screws and similar threaded fasteners not under tensile stresses. IS0 898-6:1994, Mechanical properties of fasteners - Part 6: Nuts with specified proof load
40、values - Fine pitch thread. 1 EN IS0 3269:2000 IS0 1478:1999, Tapping screws thread. IS0 1502: 1996, IS0 general-purpose metric screw threads - Gauges and gauging. IS0 2320: 1 997, Prevailing torque type steel hexagon nuts - Mechanical and performance properties. o IS0 2702: 1 992, Heat-treated stee
41、l tapping screws - Mechanical properties. IS0 2859-1 :1999, Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection. IS0 3506-1 : 1 997, Mechanical properties of corrosion-resistant stainless-steel fasteners - Pa
42、rt 1: Bolts, screws and studs. IS0 3506-2: 1 997, Mechanical properties of corrosion-resistant stainless-steel fasteners - Part 2: Nuts. IS0 3506-3: 1 997, Mechanical properties of corrosion-resistant stainless-steel fasteners - Part 3: Set screws and similar fasteners not under tensile stress. IS0
43、4042: 1 999, Fasteners - Electroplated coatings. o IS0 4759-1 :-), Tolerances for fasteners - Part 1: Bolts, screws, studs and nuts - Product grades A, B and C. IS0 4759-3:2000, Tolerances for fasteners - Part 3: Plain washers for bolts, screws and nuts - Product grades A and C. IS0 61 57-1 :1988, F
44、asteners - Surface discontinuities - Part 1: Bolts, screws and studs for general requirements. IS0 61 57-2: 1995, Fasteners - Surface discontinuities - Part 2: Nuts. IS0 61 57-3:1988, Fasteners - Surface discontinuities - Part 3: Bolts, screws and studs for special requirements. IS0 7085: 1 999, Mec
45、hanical and performance requirements of case hardened and tempered metric thread rolling screws. IS0 8839:1986, Mechanical properties of fasteners - Bolts, screws, studs and nuts made of non-ferrous metals. IS0 1 0683:-2), Fasteners - Non-electrolytically applied zinc flake coatings. 1) To be publis
46、hed. (Revision of IS0 4759-1:1978) 2) To be published. 2 EN IS0 3269:2000 3 Terms and definitions For the purposes of this International Standard, the following terms and definitions apply. They are based on the terms and definitions given in IS0 3534-2 and IS0 8402. 3.1 acceptance inspection proced
47、ures such as sampling, gauging, measuring, comparing and testing to determine acceptance or rejection of a lot of fasteners 3.2 supplier manufacturer, dealer or representative who supplies fasteners 3.3 purchaser recipient or recipients representative who receives fasteners NOTE The purchaser is not
48、 necessarily the user of the fasteners. O 3.4 inspection lot definite quantity of fasteners of the same designation, received from the same supplier at the one time 3.5 lot size N number of fasteners contained in a lot 3.6 sample one or more fasteners drawn at random from an inspection lot in such a
49、 way that all fasteners in the lot have an equal chance of being drawn 3.7 sample size n number of fasteners in a sample 3.8 characteristic dimensional element, mechanical property or other recognizable product feature for which limits are specified EXAMPLES Head height, body diameter, tensile strength or hardness. 3.9 nonconformity deviation of a characteristic from a particular requirement 3.10 nonconforming fastener fastener with one or more nonconformities 3.1 1 acceptance number AC maximum number of nonconformities of the same characteristic in any given sample which,
