1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 611-2 : 1997 The Eu
2、ropean Standard EN 611-2 : 1996 has the status of a British Standard ICS 77.120.60 ; 77.140.90 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Tin and tin alloys Pewter and pewterware Part 2. PewterwareThis British Standard, having been prepared under the direction of the Engi
3、neering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 January 1997 BSI 1997 The following BSI references relate to the work on this standard: Committee reference NFE/27 Draft for comment 93/312327 DC ISBN 0 580 26261 8 BS EN 611-2 : 1997 Amendment
4、s issued since publication Amd. No. Date Text affected Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee NFE/27, Tin and tin alloys, upon which the following bodies were represented: Association of British Pewter Craftsmen
5、British Iron and Steel Producers Association Federation of the Electronics Industry ITRI Ltd. London Metal Exchange Metal Packaging Manufacturers Association Solder Makers AssociationBS EN 611-2 : 1997 BSI 1997 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2
6、 Text of EN 611-2 3ii BSI 1997 BS EN 611-2 : 1997 Foreword This British Standard has been prepared by Technical Committee NFE/27 and is the English language version of EN 611-2 : 1996, Tin and tin alloys Pewter and pewterware Part 2: Pewterware, published by the European Committee for Standardizatio
7、n (CEN). BS EN 611 : Part 2 : 1996, together with BS EN 611 : Part 1 : 1995, supersedes BS 5140 : 1974, which is withdrawn. Cross-references Publication referred to Corresponding British Standard EN 610 : 1995 BS EN 610 : 1996 Tin and tin alloys Ingot tin EN 611-1 : 1995 BS EN 611 Tin and tin alloys
8、 Pewter and pewterware Part 1 : 1995 Pewter EN 29453 : 1993 BS EN 29453 : 1994 Soft solder alloys Chemical compositions and forms Compliance with a British Standard does not of itself confer immunity from legal obligations.CEN European Committee for Standardization Comite Europe en de Normalisation
9、Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1996 Copyright reserved to CEN members Ref. No. EN 611-2 : 1996 E EUROPEAN STANDARD EN 611-2 NORME EUROPE ENNE EUROPA ISCHE NORM May 1996 ICS 77.120.60; 77.140.90 Descriptors: Metal products, tin, tin alloys,
10、 specifications, manufacturing, brazed and soldered joints, sampling, chemical analysis, components, chemical composition, food-container contact, marking English version Tin and tin alloys Pewter and pewterware Part 2 : Pewterware E tain et alliages detain E tain pour la fabrication dobjets en e ta
11、in et objets en e tain Partie 2: Objets en e tain Zinn und Zinnlegierungen Zinnlegierungen und Zinngera t Teil 2: Zinngera t This European Standard was approved by CEN on 1996-04-12. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving t
12、his European Standard the status 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 Central Secretariat or to any CEN member. This European Standard exists in three official versions
13、(English, French, 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denma
14、rk, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 611-2 : 1996 BSI 1997 Foreword This European Standard has been prepared by CEN/TC 220, Tin and tin alloys, the secretariat of which is hel
15、d by BSI. This European Standard shall be given the status of a national standard, whether by publication of an identical text or by endorsement, at the latest by November 1996, and conflicting standards shall be withdrawn at the latest by November 1996. This standards consists of two Parts, of whic
16、h Part 2 specifies the requirements for pewterware. Part 1 gives the requirements for pewter alloys for use in the production of the pewterware in Part 2. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Eu
17、ropean Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Materials of manufacture 3 4 Requirements
18、 3 5 Sampling and analysis 3 6 Marking 4 Annexes A (normative) Solders in EN 29453 referred to in 3.2 5Page 3 EN 611-2 : 1996 BSI 1997 1) In course of preparation. 1 Scope This Part of EN 611 specifies the requirements for the fabrication, sampling, analysis and marking of pewterware. It does not co
19、ver articles manufactured from materials other than pewter which have been coated or clad with pewter. NOTE. The requirements for pewter alloys are specified in EN 611-1. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. The
20、se normative references are cited at the appropriate 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 Part of EN 611 only when incorporated in it by amendment or revision. For undated
21、references the latest edition of the publication referred to applies. EN 610 Tin and tin alloys Ingot tin EN 611-1 : 1995 Tin and tin alloys Pewter and pewterware Part 1: Pewter EN 29453 Soft solder alloys Chemical compositions and forms (ISO 9453 : 1990) 3 Materials of manufacture 3.1 Pewterware Th
22、e pewter part(s) of the pewterware can be fabricated from one or more pieces of pewter, each of which shall be an alloy conforming to EN 611-1. Materials used to simulate pewter alloys in the article, such as lead, zinc, aluminium or their alloys, shall not be used. Materials which do not simulate p
23、ewter alloys may be associated with the pewter in the article of pewterware for functional, decorative and/or structural purposes. NOTE. The finished pewterware may be surface treated, for example by painting or by patination. 3.2 Soldered joints For those cases where the soldered joint may reasonab
24、ly be expected to come into contact with foodstuffs, the solder used for joining the component parts of the pewterware shall contain not more than 0,25 % lead and 0,05 % cadmium. Examples of solders which meet this requirement are as follows: a) one of the alloys numbered 1 to 6 in table 1 of EN 611
25、-1 : 1995; or b) alloy 21 in EN 29453 (see table A.1); or c) tin complying with any of the grades specified in EN 610. NOTE. It is recommended that soldered joints which can reasonably be expected not to come into contact with foodstuffs should be made using solder which complies either with a), b)
26、or c) of this subclause, or with alloy 11 or alloy 12 in EN 29453 (see table A.1). 4 Requirements 4.1 Pewterware When sampled and analysed in accordance with a) of clause 5, the composition of each piece of pewter in the pewterware article (see 3.1) shall be found to conform to one of the alloys in
27、EN 611-1. 4.2 Soldered joints for contact with foodstuffs When sampled and analysed in accordance with b) of clause 5, the composition of the joint region of those joints which may reasonably be expected to come into contact with foodstuffs shall contain not more than 0,25 % lead (Pb) and 0,05 % cad
28、mium (Cd). 5 Sampling and analysis When analysis is required to be carried out to verify compliance of the pewterware article with this standard, the procedures given in a) and b) of this clause shall be followed. a) Sampling and analysis of the pewter component(s) of the pewterware article All surf
29、ace coatings on the pewter components to be sampled shall be removed before sampling. Analysis samples shall be taken, by drilling or cutting, to represent each pewter component part of the article. These samples shall be taken from zones furthest from any soldered joints. For routine control purpos
30、es each of the analysis samples so obtained shall be analysed by the use of recognized chemical, or instrumental, analytical procedures. In cases of dispute concerning the chemical composition of the pewterware, until the publication of European Standards 1) for the analysis of pewter, the methods o
31、f analysis to be used shall be subject to agreement between the disputing parties and any independent arbitrator. b) Sampling and analysis of soldered joints The joint shall be cut from the pewterware article. The sample for analysis shall be a length of the joint, taken so as to include not more th
32、an 2 mm of the pewter on each side of the joint. The mass of the sample taken for analysis shall be at least 0,1 g. Analysis shall be carried out on this sample to determine the lead and cadmium content (see 4.2). NOTE. It is not normally possible to determine the actual composition of the solder us
33、ed for the joint in the article. However, if one of the solders specified in 3.2 for joints in contact with foodstuffs has been used, then the composition of the sample of the joint will be found to contain less than 0,25 % Pb and 0,05 % Cd.Page 4 EN 611-2 : 1996 BSI 1997 6 Marking As a minimum requ
34、irement, each article of pewterware shall be permanently marked with: the name or mark of the producer and/or distributor; and the word PEWTER (or corresponding translation, for instance ETAIN in French, ZINN in German, etc.) In addition, the pewterware article or if this is not practicable, its lab
35、el or associated packaging shall be marked with the number of this Part of this European Standard (i.e. EN 611-2).Page 5 EN 611-2 : 1996 BSI 1997 Annex A (normative) Solders in EN 29453 referred to in 3.2 Table A.1 gives the chemical composition requirements for solders Nos 21, 11 and 12 referred to
36、 in 3.2 of this Part of EN 611. NOTE. The details have been extracted from EN 29453. BSI 1997 Page 6 EN 611-2 : 1996 Table A.1. Chemical compositions of EN 29453 solders Alloy number Alloy designation Melting, or solidus/liquidus temperature C Chemical composition %( m / m ) Element Sn Pb Sb Cd Zn A
37、1 Bi As Fe Cu Total excluding Sb, Bi, Cu 11 S-Sn63Pb37Sb 183 min. 62,5 Remainder 0,12 max. 63,5 0,50 0,002 0,001 0,001 0,10 0,03 0,02 0,05 0,08 12 S-Sn60Pb40Sb 183-190 min. 59,5 Remainder 0,12 max. 60,5 0,50 0,002 0,001 0,001 0,10 0,03 0,02 0,05 0,08 21 S-Bi57Sn43 138 min. 42,5 Remainder max. 43,5 0
38、,05 0,10 0,020 0,010 0,010 0,03 0,02 0,10 0,2 1) 2) 1) In alloy 21, the sum of all impurities (i.e. elements other than Bi and Sn) is 0,2 % maximum. 2) In alloy 21, the maximum indium (In) content is 0,05 % and the maximum silver (Ag) content is 0,05 %. BSI 1997 BS EN 611-2 : 1997 List of references
39、 (see national foreword)BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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