1、BRITISH STANDARDBS6041:1981ISO4519:1980Incorporating Amendment No. 1Method ofSampling of electrodeposited metallic coatings and related finishes: procedures for inspection by attributesISO title: Electrodeposited metallic coatings and related finishes-Sampling procedures for inspection by attributes
2、UDC 669.058.7:620 113:658.562CONFIRMED DECEMBER 2007BS EN ISO 4519:2016Incorporating Amendment No. 1Electrodeposited metallic coatings and related finishes Sampling procedures for inspection by attributes (ISO 4519:1980)ICS 25.220.40BS EN ISO 4519:2016ISBN 978 0 580 90543 8Amendments/corrigenda issu
3、ed since publicationAmd. No. Date Comments3746 September 1981 Indicated by a sideline in the margin31 May 2016 This corrigendum renumbers BS 6041:1981 (dual numbered as ISO 4519:1980) as BS EN ISO 4519:2016This British Standard, having been prepared under the direction of the Surface Coatings (other
4、 than Paints) Standards Committee, was published under the authority of the Executive Board and comes into effect on 31 December 1980 The British Standards Institution 2016. Published by BSI Standards Limited 2016National forewordThis British Standard is the UK implementation of EN ISO 4519:2016. It
5、 is identical to ISO 4519:1980. It supersedes BS 6041:1981 (dual numbered as ISO 4519:1980) which is withdrawn.This British Standard has been prepared in order to provide a practical guide to the sampling of electrodeposited metallic coatings and related finishes. In this respect, the sampling plans
6、 actually included relate to Acceptable Quality Levels of 1.5 % and 4.0 %, the most commonly used levels in this field. Other AQLs may, however, be used and, in these cases, reference should be made to the BS 6000 series and the BS 6001 series.ISO 3269, which is referred to in clause 1 as a standard
7、 covering mechanical fasteners, which are outside the scope of ISO 4519 is not essential for the operation of BS 6041.NOTE Textual errors. Attention is drawn to a printing error in the note at the beginning of clause 3, where the final word should be “items” and not “thems”.The UK participation in i
8、ts preparation was entrusted to Technical Committee STI/33, Electrodeposited and related coatings.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are respo
9、nsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4519 April 2016 ICS 25.220.40 English Version Electrodeposited metallic coatings and related finishes - Sampling procedures for
10、 inspection by attributes (ISO 4519:1980) Dpts lectrolytiques et finitions apparentes - Mthodes dchantillonnage pour le contrle par attributs (ISO 4519:1980) Elektrolytisch abgeschiedene metallische berzge und verwandter Finishs - Stichprobenverfahren zur Qualittskontrolle (ISO 4519:1980) This Europ
11、ean Standard was approved by CEN on 2 April 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 without any alteration. Up-to-date lists and bibliographical references conce
12、rning 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 other language made by translation under the responsibility of a CEN member int
13、o 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 Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, G
14、ermany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE
15、 FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 4519:2016 E EN ISO 4519:2016 (E) 3 European foreword The text of ISO 4519:1980 has been prepared
16、by Technical Committee ISO/TC 107 “Metallic and other inorganic coatings” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 4519:2016 by Technical Committee CEN/TC 262 “Metallic and other inorganic coatings” the secretariat of which is held by BSI. This Eu
17、ropean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2016, and conflicting national standards shall be withdrawn at the latest by October 2016. Attention is drawn to the possibility that some of the e
18、lements 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, the national standards organizations of the following countries are bound to implement this
19、 European Standard: Austria, Belgium, Bulgaria, Croatia, 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
20、, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 4519:1980 has been approved by CEN as EN ISO 4519:2016 without any modification. ii BS EN ISO 4519:2016EN ISO 4519:2016(E)BS 6041:1981 BSI 04-1999 iContentsPageCooperating organizations Inside f
21、ront coverNational foreword ii1 Scope and field of application 12 References 13 Definitions 14 Product submission 25 Acceptance and rejection 36 Selection of samples (sampling) 37 Sampling plans 38 Determination of acceptability 5Annex Drawing of samples 7Table 1 Sampling of items for non-destructiv
22、e testsproduced by methods other than barrel electroplating 5Table 2 Sampling of barrel electroplating items fornon-destructive tests 5Table 3 Sampling for destructive tests (adhesion, hydrogenembrittlement, corrosion resistance, etc.) 5Table 4 Sampling of items for non-destructive tests,produced by
23、 methods other than barrel electroplating,for tightened inspection of continuing lots 6Table 5 Sampling of barrel electroplated items for non-destructivetests, for tightened inspection of continuing lots 6Table 6 Limiting quality for testing isolated lots or batches 6Table 7 Random numbers 8Publicat
24、ions referred to Inside back coverBS 6041:1981 BSI 04-1999 iPageCooperating organizations Inside front coverNational foreword ii1 Scope and field of application 12 References 13 Definitions 14 Product submission 25 Acceptance and rejection 36 Selection of samples (sampling) 37 Sampling plans 38 Dete
25、rmination of acceptability 5Annex Drawing of samples 7Table 1 Sampling of items for non-destructive testsproduced by methods other than barrel electroplating 5Table 2 Sampling of barrel electroplating items fornon-destructive tests 5Table 3 Sampling for destructive tests (adhesion, hydrogenembrittle
26、ment, corrosion resistance, etc.) 5Table 4 Sampling of items for non-destructive tests,produced by methods other than barrel electroplating,for tightened inspection of continuing lots 6Table 5 Sampling of barrel electroplated items for non-destructivetests, for tightened inspection of continuing lot
27、s 6Table 6 Limiting quality for testing isolated lots or batches 6Table 7 Random numbers 8Publications referred to Inside back coveriii BS EN ISO 4519:2016National foreword Inside front coverEuropean foreword blankBS 6041:1981 BSI 04-1999 11 Scope and field of applicationThis International Standard
28、establishes sampling plans and procedures for inspection by attributes of electrodeposited metallic coatings. It may be applied to related finishes by agreement between the supplier and the purchaser. It is based on ISO 2859 (see also Addendum 1 to ISO 2859).The sampling plans in this International
29、Standard are applicable, but not limited, to the inspection of end items, components, materials in process and finished products in storage. The plans are intended primarily to be used for a continuing series of lots, but they may also be used for the inspection of isolated lots. However, the assura
30、nce given for isolated lots is lower than that given for a continuing series of lots.This International Standard is not applicable to the sampling and testing of mechanical fasteners having electrodeposited metallic coatings or related finishes, in all the circumstances for which procedures for thes
31、e components are specified in ISO 3269.The sampling plans given in this International Standard are based on AQLs1)of 1,5 and 4,0 %. Other AQLs may be used if specified in the product specification, in which case reference should be made to ISO 2859 and its Addendum 1.It is also possible to formulate
32、 sampling plans based on inspection by variables.2 ReferencesISO 2859, Sampling procedures and tables for inspection by attributes. ISO 2859/Add. 1, General information on sampling inspection, and guide to the use of the ISO 2859 tables. ISO 3269, Fasteners Acceptance inspection2). ISO 3534, Statist
33、ics Vocabulary and symbols . 3 DefinitionsNOTE Some of these definitions are not identical with those in ISO 3534 but have been modified to make them easier to understand by non-statisticians and to make them more readily applicable to electroplated thems.3.1 inspectionthe process of measuring, exam
34、ining, testing, or otherwise comparing the unit of product (see3.4) with the requirements3.2 attributea characteristic or property which is appraised in terms of whether it does or does not exist (for example go or no-go) with respect to a given requirement3.3 inspection by attribute(s)inspection wh
35、ereby either the unit of product is simply classified as defective or non-defective, or the number of defects in the unit of product is counted, with respect to one or more given requirements3.4 unit of productthe object inspected either to determine its classification as defective or non-defective,
36、 or to count the number of defects. It may be a single article, a pair, a set, a length, an area, an operation, a volume, a component of an end item or the end product itself. The unit of product may or may not be the same as the unit of purchase, supply, production, or shipment3.5 acceptance number
37、the maximum number of defects or defective units in the sample that will permit acceptance of the inspection lot3.6 rejection numberthe minimum number of defects or defective units in the sample that will cause rejection of the inspection lot3.7 inspection lota collection of coated articles that are
38、 of the same kind, that have been produced to the same specifications, that have been coated by a single supplier at one time, or at approximately the same time, under essentially identical conditions and that are submitted for acceptance or rejection as a group3.8 Classification of defects and defe
39、ctives3.8.1 method of classifying defectsThe enumeration of possible defects of the unit of product classified according to their seriousness. A defect is any non-conformance of the unit of product to the specified requirements.Defects are normally grouped into one or more of the following classes;
40、however, defects may be grouped into other classes or into sub-classes within these classes.1) AQL = Acceptable Quality Level.2) At present at the stage of draft.BS EN ISO 4519:2016ISO 4519:19801 BS 6041:19812 BSI 04-19993.8.1.1 critical defecta defect that judgement and experience indicate is likel
41、y to result in hazardous or unsafe conditions for the individual using, maintaining, or depending upon the unit of product which has an electrodeposited metallic coating or related finish. It may also be a defect in the coating that judgement and experience indicate is likely to prevent performance
42、of the primary function of a major end item3.8.1.2 major defecta defect, other than critical, that is likely to result in failure of the finish, or to reduce materially the usability of the unit of product for its intended purpose3.8.1.3 minor defecta defect that is not likely to reduce materially t
43、he usability of the unit of product for its intended purpose, or is a departure from established standards having little or no bearing on the effective use or operation of the item which has an electrodeposited coating or related finishNOTE Inspection for detection of critical defects may require no
44、n-destructive examination of every unit of product in the lot. In this International Standard, all defects not conforming to the specified requirements in the product item specifications for electrodeposited coatings and related finishes are considered to be major. If specified by the purchaser, the
45、 maximum number of defects per hundred items, or the maximum percent defective laid down in this International Standard can be increased for the purpose of sampling inspection of minor defects.3.8.2 method of classifying defectivesA defective is a unit of product which contains one or more defects.D
46、efectives are usually classified as follows:3.8.2.1 critical defectivea defective which contains one or more critical defects, and which may contain major or minor defects3.8.2.2 major defectivea defective which contains one or more major defects, and which may contain minor defects but no critical
47、defects3.8.2.3 minor defectivea defective which contains one or more minor defects, but no critical or major defects3.9 expression of non-conformancethe extent of non-conformance of a product expressed either in terms of percent defective, or in terms of defects per hundred items3.10 percent defecti
48、veone hundred times the number of defective units of product divided by the total number of units of product inspected, i.e.Percent defective = 4 Product submission4.1 LotAn inspection lot shall be a collection of items from which a sample shall be randomly drawn and inspected to determine conforman
49、ce with the acceptance criteria. It may differ from a collection of units of product designated as a lot for other purposes, such as production, shipment, and storage.4.2 Formation of lotsThe product shall be assembled into identifiable lots, sub-lots, or in such manner as may be prescribed (see6.3). Each lot shall, as far as practicable, consist of units of product or separate specimens of the same basic material composition, of a single type, grade or class of the coating or finish, and approximately the same size and shape, pr
