SIST EN ISO 8442-2:1998/AC:2000
(Amendment)Materials and articles in contact with foodstuffs - Cutlery and table holloware - Part 2: Requirements for stainless steel and silver-plated cutlery (ISO 8442-2:1997)
Materials and articles in contact with foodstuffs - Cutlery and table holloware - Part 2: Requirements for stainless steel and silver-plated cutlery (ISO 8442-2:1997)
TC - Need for an A deviation since VA. Not UAP procedure but Corrigendum
Werkstoffe und Gegenstände in Kontakt mit Lebensmitteln - Schneidwaren und Tafelgeräte - Teil 2: Anforderungen für versilberte und nichtrostende Eßbestecke (ISO 8442-2:1997)
Matériaux et objets en contact avec les denrées alimentaires - Coutellerie et orfevrerie de table - Partie 2: Exigences relatives a la coutellerie et aux couverts en acier inoxydable et en métal argenté (ISO 8442-2:1997)
Materiali in predmeti v stiku z živili - Pribor in namizna posoda - 2. del: Zahteve za pribor iz nerjavnega jekla in posrebren pribor (ISO 8442-2:1997)
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Materiali in predmeti v stiku z živili - Pribor in namizna posoda - 2. del: Zahteve za pribor iz nerjavnega jekla in posrebren pribor (ISO 8442-2:1997)Werkstoffe und Gegenstände in Kontakt mit Lebensmitteln - Schneidwaren und Tafelgeräte - Teil 2: Anforderungen für versilberte und nichtrostende Eßbestecke (ISO 8442-2:1997)Matériaux et objets en contact avec les denrées alimentaires - Coutellerie et orfevrerie de table - Partie 2: Exigences relatives a la coutellerie et aux couverts en acier inoxydable et en métal argenté (ISO 8442-2:1997)Materials and articles in contact with foodstuffs - Cutlery and table holloware - Part 2: Requirements for stainless steel and silver-plated cutlery (ISO 8442-2:1997)97.040.60Kuhinjska posoda, jedilni servisi in jedilni priborCookware, cutlery and flatware67.250Materiali in predmeti v stiku z živiliMaterials and articles in contact with foodstuffsICS:Ta slovenski standard je istoveten z:EN ISO 8442-2:1997/AC:1999SIST EN ISO 8442-2:1998/AC:2000en01-april-2000SIST EN ISO 8442-2:1998/AC:2000SLOVENSKI
STANDARD
SIST EN ISO 8442-2:1998/AC:2000
SIST EN ISO 8442-2:1998/AC:2000
SIST EN ISO 8442-2:1998/AC:2000
INTERNATIONAL STANDARD IS0 8442-2 First edition 1997-l 2-15 Corrected 1998-01-I 5 Materials and articles in contact with foodstuffs - Cutlery and table holloware - Part 2: Requirements for stainless steel and silver-plated cutlery Mathiaux et objets en contact avec les denkes alimentaires - Coutelierie et orfhrerie de table - Partie 2: Exigences relatives 5 la coutellerie et aux cower% en acier inoxydable et en m&al argentk Reference number IS0 8442-2: 1997(E) SIST EN ISO 8442-2:1998/AC:2000
IS0 8442-2: 1997(E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (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 organizations, 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. 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. International Standard IS0 8442-2 was prepared by the European Committee for Standardization (CEN) in collaboration with IS0 Technical Committee TC 186, Cutlery and tab/e and decorative metal hollow-ware, in accordance with the Agreement on technical cooperation between IS0 and CEN (Vienna Agreement). This first edition cancels and replaces IS0 84423 988, which has been technically revised. IS0 8442 consists of the following parts, under the general title Materials and ark/es in contact with foodstuffs - Cutlery and table holloware: Part 1: Requirements for cutlery for the preparation of food Par? 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 cutlery Further parts are proposed with the following titles: - Part 5: Specific cutting test 0 IS0 1997 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 l CH-1211 Geneve 20 l Switzerland Internet central @ iso.ch x.400 c=ch; a=400net; p=iso; o=isocs; sxentral Printed in Switzerland II SIST EN ISO 8442-2:1998/AC:2000
@ IS0 IS0 8442=2:1997(E) - Part 6: Lacquered lightly silver-plated tab/e and decorative holloware - Par? 7: Specification for table cutlery made of precious metals and their alloys, especially silver cutlery - Part 8: Specification for silver table and decorative holloware Annexes A to E form an integral part of this part of IS0 8442. Annex F is for information only. SIST EN ISO 8442-2:1998/AC:2000
IS0 8442-2: 1997(E) Contents Foreword . V Introduction . V 1 Scope . 1 2 Normative references . 1 3 Definitions . I 4 Materials . 2 5 Construction . 2 6 Silver-plated cutlery . 4 7 Performance requirements . 5 8 Marking and labelling . 7 Annex A (normative) Test method for average thickness of silver coating . 8 Annex B (normative) Schlegel method of determining surface area . 10 Annex C (normative) Test method for corrosion resistance of unplated steel cutlery . 12 Annex D (normative) Test method for strength of knives with martensitic stainless steel blades and carving forks . 14 Annex E (normative) Test method for adhesion of silver coatings . 16 Annex F (informative) Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 iv SIST EN ISO 8442-2:1998/AC:2000
@ IS0 IS0 8442-2: 1997(E) Foreword The text of EN IS0 8442-2: 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 ISO/TC 186 “ Cutlery and table and decorative metal hollow-ware”. 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 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 cutlery for the preparation of food Part 2: Requirements for stainless steel and silver-plated cutlery Part 3: Requirements for silver-plated and decorative holloware Part 4: Requirements for gold-plated cutlery Further parts are proposed with the following titles Part 5: Specific cutting test Part 6: Lacquered lightly silver-plated table 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 CEN/CENELEC 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, Greece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Introduction This Standard, based on IS0 8442, is concerned with performance and does not include requirements for design, size, type of finish, blade flexibility, or similar characteristics which are matters of personal choice or which can be readily assessed by the purchaser at the point of sale. In this Standard the thickness of silver deposit is stipulated for each and every item, in contrast to traditional methods which relate to an average of 12 or 24 items, amongst which some items can have a significantly lower thickness of silver coating. Attention is drawn to Directives of the European Community concerning materials and articles in * contact with food, in particular to Directives EC 891109 and EC 90/128. V SIST EN ISO 8442-2:1998/AC:2000
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IS0 8442-2: 1997(E) 1 Scope This part of this Standard specifies material, performance requirements and test methods cutlery (knives, forks, spoons, carving sets, ladles, children’s cutlery and other serving pieces). for table This Standard is applicable to stainless steel cutlery and to silver-plated nickel silver, or silver-plated stainless steel, cutlery. It does not cover cutlery made wholly of precious metals, aluminium, non- stainless steel or that made entirely of nickel silver, nor does it cover gold-plated or chromium-plated cutlery. Three minimum thicknesses of silver are specified for silver-plated cutlery. 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, subsequent 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 IS0 2177 IS0 3497 IS0 3543 IS04481 : 1977 IS0 6508 : 1986 Metallic and oxide coatings - Measurement of coating thickness - Microscopical method Metallic coatings - Measurement of coating thickness - Coulometric method by anodic dissolution Metallic coatings - Measurement of coating thickness - X-ray spectrometric methods Metallic and non-metallic coatings - Measurement of thickness - Beta backscatter method Cutlery and flatware - Nomenclature Metallic materials - Hardness test - Rockwell test (scales A - B - C - D - E - F - G - H - K) 3 Definitions For the purposes of this Standard the definitions given in IS0 448 1: 1977 apply together with the following. 3.1 items of frequent use: Pieces of cutlery regularly used at the dining table. They are listed in IS0 4481 : 1977 as: coffee or teaspoon, soup spoon, dessert spoon, menu spoon, table spoon, dessert fork, menu fork, fish eating fork, table fork, dessert knife, menu knife, fish eating knife, table knife. 3.2 items of infrequent use: Pieces of cutlery which are occasionally used at the dining table. These items are defined in IS0 448 1 : 1977 and exclude those listed in 3.1. 3.3 significant surfaces: Parts of cutlery in contact with a flat horizontal surface upon which they are laid; for spoons, forks and ladles this will be the convex face, i.e. their bowls or fork prongs are uppermost; for knives both sides are regarded as having significant surfaces. SIST EN ISO 8442-2:1998/AC:2000
IS0 8442-2: 997(E) 3.4 unsharpened knives: Knives that do not have a sharpened blade because they are intended for use with soft foods and whose blades are therefore not made of martensitic stainless steel. This includes the following items: butter knife, fish serving knife, ice cream knife, fish eating knife, spreading knife. 3.5 monobloc knives: Knives made of one piece. 3.6 normal corrected vision: The naked eye corrected to normal vision if necessary. NOTE. This is usually done by the wearing of spectacles. 4 Materials 4.1 General The cutlery shall be made from materials that enable the finished product to meet all of the performance requirements of this standard. NOTE: The cutlery should not under foreseeable conditions of use release any substance likely to be detrimental to health or to have any detrimental organoleptic effects. 4.2 Metals 4.2.1 The composition of metal parts of table cutlery shall be as given in table 1. 4.2.2 Any parts of table cutlery made of nickel silver (copper zinc nickel alloy) shall be sil (see clause 6). 4.2.3 Any parts of table cutlery made of stainless steel and claimed to be silver-plated shal with the requirements of clause 6. ver-plated 1 conform 5 Construction 5.1 General Cutlery manufactured from the materials specified in clause 4 shall be so constructed that it meets all of the relevant performance requirements of this standard. 5.2 Alignment, uniformity and absence of defects 5.2.1 All surfaces shall be free from cracks, pits and other defects. 5.2.2 As far as is practicable, all cutlery shall be straight and symmetrical except when the lack of straightness or symmetry is an intentional feature of the design. 5.2.3 Identical items within a batch shall , as far as is practicable, show no variation in dimension or form. 5.2.4 All edges, including the edges of spoons, forks, ladles and the insiders of fork prongs, shall be free from burrs and the roughness of blanked edges shall have been removed by a suitable operation. 2 SIST EN ISO 8442-2:1998/AC:2000
Table 1: Metals for table cutlery, composition limits T Applications Chemical composition (%)‘I Materials P max. S max. Cr min. Ni min. 17,0 890 u 17,0 490 MO max.*) V max.*) C Mn max. 0,07 max. 0,15 max. Austenitic stainless steel 0,045 0,045 2,00 10,5 Spoons, forks, ladles, unsharpened knives, handles of knives and carving forks Guards and prongs of carving items 0,015 0,015 Ferritic stainless steel 0,07 max. 0,040 0,015 16,O I 1,30 Guards and prongs of Martensitic stainless carving items steel (low carbon) 0,16 min. 12,0 5 12,0 0,040 0,015 Knife blades handles of Martensitic stainless monobloc knives steel (higher carbon) 0,26 min 0,015 0,040 1,30 0,20 Cu min. Ni min. 970 Mn max. Fe Pb 0,50 0,30 0,05 Ag min. 98,5 Total impurities max. % Zn Spoons, forks, ladles, unsharpened knives and carving forks Nickel silver 60,O 0,50 24 II Coatings Silver 1) Two alternatives are given for austenitic stainless steel. Further chemical compositions are given in EN 10088-l. 2)Additions of MO and V are optional. SIST EN ISO 8442-2:1998/AC:2000
IS0 8442-2: 1997(E) @ IS0 5.2.5 Table knives shall be balanced such that when the knife is pivoted on its bolster, or at the junction of the handle and blade if no bolster is present, the handle shall be heavier than the blade. 5.2.6 Compliance with the requirements for 5.2.1 to 5.2.5 shall be checked by touch or by visual inspection. 5.3 Hollow handles The seams joining hollow handles together shall be watertight. 5.4 Knife edges The cutting edge of sharpened table knives shall be either scalloped or serrated or shall be whetted to an included angle not greater than 60°. The cutting edges of a carving knife blade shall be whetted to an inclined angle not greater than 40’ and shall not be thicker than 0,46 mm when measured 1 mm from the external side of the edge. 5.5 Sprung fork guards When fitted, sprung fork guards shall have a positive opening and closing snap action. 6 Silver-plated cutlery 6.1 General All silver-plated surfaces shall comply with the requirements of 6.2, 6.3,6.4 and 6.5. 6.2 Average thickness The average thickness of silver coating on each and every finished item when measured in accordance with the methods described in annex A (weight of coating) and annex B (area of coating) shall be as specified in table 2. II Table 2: Average thickness of classes of silver coating Description First class Second class Third class Symbol Items for Items for infrequent frequent use use I min. 30 pm rnin. 17 pm II min. 20 pm min. 12 pm III rnin. 10 pm min. 7 pm 6.3 Local thickness The minimum local thickness of silver coating on significant surfaces (i.e. those parts of cutlery subject to the greatest wear; see 3.3) shall not be less than 60 % of the average thickness deemed to be on the item. 4 SIST EN ISO 8442-2:1998/AC:2000
IS0 8442-2: 1997(E) The minimum local thickness shall be measured in accordance with one of the methods specified in IS0 2177, IS0 1463, IS0 3497 or IS0 3543. In case of dispute the thickness shall be measured in accordance to IS0 1463. 6.4 Minimum hardness of hard silver coatings A silver coating claimed to be hard shall have a minimum hardness of 130 HV, immersion in boil ing water for 2 h. measured after 6.5 Adhesion of silver coatings Silver coatings shall show no signs of flaking, blistering or peeling when the cutlery is ball burnished for 40 min in a burnishing machine as described in annex E. NOTE: Alternative methods of determining the adhesion of silver coatings can be used, provided the results obtained are in correlation with those given by ball burnishing. 7 Performance requirements 7.1 Resistance to corrosion The surfaces of stainless steel parts of table cutlery shall comply with the requirements a) to c) when tested in accordance with the method described in annex C: no transverse a> 15 ? mm shall have cracks shall have developed developed; and no longitudinal cracks of a length exceeding L b) there shall not be more than three pits or zones of intergranular corrosion each having an area greater than a circle of 0,4 mm diameter on the handle, and not more than three pits each having an . area greater than a circle of 0,4 mm diameter (0,126 mm*) elsewhere; c) there shall be no pits or zones of intergranular corrosion having an area greater than a circle of 0,75 mm diameter (0,442 mm*) on any part. 7.2 Strength 7.2.1 Knives with martensitic stainless steel blades and carving forks A knife or carving fork shall not crack or break and shall not acquire a permanent deformation of greater than 3O when tested in accordance with the method described in annex D. In addition, the handle blade joint shall not become loose. 7.2.2 Spoons, forks
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