1、STD*BSI BS EN IS0 8V42-3-ENGL 3778 E lb24bb7 Ob82172 b72 W BRITISH STANDARD Materials and articles in contact with foodstuffs - Cutlery and table holloware Part 3. Requirements for silver-plated table and decorative holloware BS EN IS0 8442-3 : 1998 The European Standard EN IS0 84423 : 1997 has the
2、status of a British Standard ICs 67.260 97.040.60 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW STDoBSI BS EN IS0 Aq42-3-ENGL LA II Lb2Libb7 ObA2L73 507 I direction of the Consumer Products and Services Sector Board, was published under the authority of the Standards Board a
3、nd comes into effect on 15 February 1998 Amd. No. O BSI 1998 BS EN IS0 8442-3 : 1998 Date Text affected National foreword This British Standard is the English language version of EN IS0 8442-3 : 1997. It is identical with IS0 84423 : 1997. It supersedes BS 7043 : 1989 which is withdrawn. The UK part
4、icipation in its preparation was entrusted to Technical Committee CW/17, Cutlery and table holloware, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible internationaVEuropean committee any enquiries on the interpretation, or proposals for change, an
5、d 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-references Attention is drawn to the fact that CEN and CENELEC Standards
6、normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these internationai or European publications may be found in the BSI Standards Catalogue under the section entitled Internati
7、onal Standards Correspondence Index, or by using the Compliance with a British Standard does not of itself confer immunity from legal obligations. facility of the BSI Standards Electronic Catalogue. Summary of pages This document comprises a front cover, an inside front cover, the EN IS0 title page,
8、 pages 2 to 21, a blank page, an inside back cover and a back cover. ISBN O 680 28813 7 * CB * EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 8442-3 December 1997 ICs 67.250; 97.040.60 Descriptors: See IS0 document English version Materials and articles in contact with foodstuffs - Cutlery
9、 and table holloware - Part 3: Requirements for silver-plated table and decorative holloware (IS0 8442-3: 1997) Mat6riaux et objets en contact avec les denres alimentaires - Coutellerie et orfevrerie de table - Partie 3: Exigences relatives Iorfevrene de table et dcorative en metal argente (IS0 8442
10、-3:1997) Werkstoffe und Gegenstnde in Kontakt mit Lebensmitteln - Schneidwaren und Tafelgerate -Teil 3: Anforderungen fr versilberte Tafelgerate und dekorative Hohlwaren (IS0 8442-3:1997) This European Standard was approved by CEN on 11 October 1997. CEN members are bound to comply with the CENEENEL
11、EC Internai Regulations which stipulate the conditions for giving this European Standard the stalus of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationai standards may be obtained on application to the Central Secretariat or lo any CE
12、N member. This European Standard exists in three offcial versions (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 officiai versions. CEN me
13、mbers are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Porlugal, Spain, Sweden, Switzerland and United Kingdom. EUROPFAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALI
14、SATION EUROPISCHES KOMITEE FR NORMUNG Central !Secretariat: rue de Stassart, 36 B-1050 Brussels O 1997 CEN Ail rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN IS0 8442-3:1997 E - - STD-BSI BS EN IS0 8442-3-ENGL 1998 3b2LibbS 0682375 381 S
15、Page 2 Contents EN rso 8442-3: 1997 Foreword Introduction 1 Scope 2 Normative references 3 Definitions 4 Materiais 5 Construction 6 Performance requirements 7 Marking and labelling Annex A (Informative) Classification by product type Annex B (Informative) Bibliography Annex C (Normative) Test method
16、 for resistance of lacquering to scratching Annex D (Normative) Test method for resistance of the lacquer to ultraviolet radiation Annex E (Normative) Test method for the resistance of rectangular and square trays and dishes to twisting Annex F (Nonnative) Test method for the resistance of trays and
17、 dishes to popping Annex G (Normative) Test method for load strength of a vessel Ames H (Normative) Test methods for strength of attachments Annex J (Normative) Test method for pouring Annex K (Normative) Test methd for temperature of handles and leakage Page 2 3 3 3 4 5 6 7 9 10 Il 12 14 15 17 18 1
18、9 20 21 Foreword The text of EN IS0 8442-3: 1997 has been prepared by Technical Committee CEN/TC 194 “Utensils in contact with food”, the secretariat of which is held by BSI, in collaboration with Technical Committee ISOTC 186 “Cutlery and table and decorative metal hollow-ware”. This European Stand
19、ard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 1998, and conflicting national standards shall be withdrawn at the latest by June 1998. EN IS0 8442 consists of the following parts: Part 1: Requirements for cutl
20、ery for the preparation of food Part 2: Requirements for stainless steel and silver plated cutlery Part 3 : Requirements for silver-plated table and decorative holloware Part 4: Requirements for gold-plated cutlev Further parts are proposed with the following titles Part 5: Specific cuting test Part
21、 6: Lacquered lightly silver-plated tabie and decorative holloware Part 7: Specification for table cutlery made of precious metals and their alloys, especially silver cutlery Part 8: Specification for silver table and decorative holloware According to the CENKENELEC Internal Regulations, the nationa
22、l standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium. Czech Republic, Denmark, Finland. France, Germany, Greece, Iccland, Ireland, Italy. Luxembourg. Netherlands, Norway, Portugal. Spain. Sweden, Switzerland and the United Kingdom. STD.
23、BS1 BS EN IS0 8442-3-ENGL Page 3 EN IS0 8442-3: 1997 Introduction This Standard is based on ISOAT186 work and is concerned oniy with the performance of silver- plated table and decorative holloware and does not include requirements for design, size or any other characteristics which are matters of p
24、ersonal choice or which can be readily assessed by the purchaser at point of sale. Attention is drawn to Directives of the European Community concerning materials and articles in contact with food, in particular to Directives EC 89/109 and EC 90/128. 1 Scope This part of this Standard specifies mate
25、rial, performance requirements and test methods for silver- plated table and decorative holloware made“pMcipal1y from metais, and intended for use at or upon the dining table. Composition limits are specified for the basic metals for fabrication of the holloware prior to silver- plating. This standa
26、rd applies to decorative items such as vases and trophies and includes such items as jugs, dishes, tea- and coffee-pots, trays and tureens, candlesticks, wine-coolers etc. Requirements are specified for brass, copper, nickel-silver, pewter and stainless steel holloware with a silver-plated coating a
27、nd for silver-plated cast attachments thereto. The thickness levels of silver coatings are specified as first, second and third class, these deposits can also be protected by lacquer. The standard does not apply to holloware made entirely of precious metals, brass, nickel-silver, pewter, stainless s
28、teel or that made from ceramics or glass. 2 Normative references This Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, s
29、ubsequent amendments to or revisions of any of these publications apply to this Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. IS0 1463 Metallic and oxide coatings - Measurement of coating thickness -
30、Microscopical method IS0 2177 Metallic coatings - Measurement of coating thickness - Coulometric method by anodic dissolution IS0 3497 Metallic coatings - Measurement of coating thickness - X-ray spectrometric methods IS0 3543 Metallic and non-metallic coatings - Measurement of thickness - Beta back
31、scatter method IS0 4481 : 1977 Cutlery and flatware - Nomenclature STD-BSI BS EN IS0 8442-3-ENGL 1798 = lbZLibb9 0682377 154 m Page 4 EN IS0 8442-3: 1997 EN IS0 8442-2: 1997 Materials, and articles in contact with foodstuffs - Cutlery and table holloware - Part 2: Requirements for stainless steel an
32、d silver plated cutlery (IS0 8442-2: 1997) 3 Definitions For the purposes of this Standard the definitions given in IS0 4481:1977 and those from EN IS0 8442-2 : 1997 apply together with the following. 3.1 table holloware: Items generally formed into a hollow shape for the containment of food or drin
33、k (see annex A). 3.2 decorative holloware: Items generally formed into a hollow shape but not performing a purpose with respect to food or drink and including items which may not have a discernible interior surfce (see annex A). 3.3 functional surface: The exterior surface of table or decorative hol
34、loware and trophies or the interior surface of a shallow item of holloware, the surface of which will receive usage equivalent to, or exceeding that, of the exterior. 3.4 non functional surface: The surface of an item of holloware which is silver-plated principally for aesthetic reasons e.g. the int
35、eriors of coffee-pots and vases or which is silver-plated for use with food or drink but which will receive a minimum of abrasive usage. 3.5 attachment: Components of an item of holloware joined to it by a process such as welding, brazing or soldering and comprising such items as handles, knobs, fee
36、t, spouts, stems and hinges. 3.6 load-bearing attachment: An attachment upon which a force resulting from the support of the mass of the holloware andor its contents will be applied in normal use and comprising such items as handles, taps, feet, bases, spouts and goblet stems. 3.7 burrs: Metal in ex
37、cess of that required to shape an article and which forms a thin plate at its edges. 3.8 oven-to-tableware: Items of holloware suitable for use in an oven or on a hotplate at temperatures of up to 250 “C such as e.g. vegetable dishes, meat flats, gravy boats, soup tureens, entre dishes. 3.9 vessel:
38、An item of holloware specifically intended as a container for food andor liquid. 3.10 usable capacity: The volume of liquid required to fill a vessel to 15 mm f 1 mm of its rim. 3.11 popping: Sudden transformation of an apparently flat surface of an item of holloware from convex to concave when a lo
39、ad is applied to the convex side, usually accompanied by a distinctive sound. 3.12 normal corrected vision: The naked eye corrected to normal vision if necessary. NOTE: This is usually done by the wearing of spectacles. * * GY STD.BS1 BS EN IS0 8442-3-ENGL 1778 1b2Llbb7 Ob82178 O70 = Page 5 EN IS0 8
40、442-3: 1997 4 Materiais 4.1 Metals 4.1.1 The composition of the metals of fabrication of the holloware shall be as given in table 1. 4.1.2 Silver coatings shall be a minimum of 98,5 YO Ag. 4.2 Nonmetals Non-metai parts of silver-plated holloware may be made of such materials as glass, ceramic, bone,
41、 horn, vulcanized fibres, plastics, wood, wood-plastics laminates or impregnated wood provided that the finished holloware complies with the relevant performance requirements of clause 6. Non-metal parts of table holloware shall be capable of withstanding washing processes in aqueous solutions at 60
42、 “C. Table 1 : Basis metals for silver-plated table and decorative holloware, composition limits Materials I Chemicai comDosition O/O ) C Cr Ni Cu Mn Fe Pb As Sn Zn max. min. min. min. max. max. max. max. min. min. Austenitic 0,lO 17 8 stainless steel Femtic 16 - stainless steel Nickel-silver (Cu, 9
43、 60 035 093 0s balance Ni,Zn) Brass(Cu, Zn) 62 Copper 99,4 092 092 - Pewter 0,5 90 Alloy“ 093 balance 1) Further chemical compositions are given in EN 10088-1. 2) For attachments not coming into contact with food only. STD.BSI BS EN IS0 8442-3-ENGL 1998 W 1b24bbS b82177 T27 I Page 6 EN IS0 8442-3: 1
44、997 5 Construction 5.1 Silver-plating 5.1.1 General The requirements for minimum thicknesses of silver coating given in 5.1.2 and 5.1.3 shall not apply to the internai surfaces of spouts, candelabra or any narrow ribbed sections of an item of holloware. 5.1.2 Average thickness The average thickness
45、of silver coating on the appropriate surfce of each finished item, when measured in accordance with the methods described in annex A (mass of coating) and annex B (area of coating), of EN IS0 8442-2 : 1997 shall not be less than those given in table 2. NOTE: For routine quality control purposes the
46、average thickness can be determined by a nondestructive technique such as weighing before and after plating or by a statistically significant number of local thickness measurements provided that the technique adopted can be shown to give equivalent results to the specified method. 5.1.3 Local thickn
47、ess The minimum local thickness of silver coatings on functional and non-functional surfaces (see annex A of EN IS0 8442-2:1997) shall be not less than 60 % of the average thickness deemed to be on the item. Minimum local thickness shall be measured in accordance with one of the methods specified in
48、 IS0 2177, IS0 1463, IS0 3543 or IS0 3497. In cases of dispute the thickness shall be measured by the method described in IS0 1463. Table 2: Average thickness of classes of silver-coatings Class of quality Symbol Type of holloware First class I Table holloware Decorative holloware Second class II Ta
49、ble holloware Decorative holloware Third class III Table holloware Decorative holloware 5.2 Uniformity and absence of defects Min. average thickness Functional Non- surface functional surface 52.1 All surfaces shall bc frcc from cracks and othcr dcfects Page 7 EN IS0 8442-3: 1997 5.2.2 All accessible edges shall be free from burrs and the roughness of blanked edges shall have been removed. 5.2.3 There shall be no gaps in excess of 0,4 nun between components and seams joining hollow sections together shall be watertight unless required by the
