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BS EN ISO 8442-2:1998:2006 Edition

BS EN ISO 8442-2:1998:2006 Edition

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Materials and articles in contact with foodstuffs. Cutlery and table holloware – Requirements for stainless steel and silver-plated cutlery

Published By Publication Date Number of Pages
BSI 2006 22
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This part of this Standard specifies material, performance requirements and test methods for table cutlery (knives, forks, spoons, carving sets, ladles, children’s cutlery and other serving pieces).

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.

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PDF Pages PDF Title
1 BRITISH STANDARD
BS EN ISO 8442-2:1998
Materials and articles in contact with foodstuffs – Cutlery and table holloware –
Part 2: Requirements for stainless steel and silver-plated cutlery
2 This British Standard, having been prepared under the direction of the Consumer Products and Services Sector Board, was published under the authority of the Standards Board and comes into effect on 15 February 1998
National foreword
3 Contents
5 EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
EN ISO 8442-2
Descriptors: See ISO document
English version
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)
6 Foreword
8 Contents
9 Foreword
11 Introduction
1 Scope
2 Normative references
3 Definitions
3.1 items of frequent use
3.2 items of infrequent use
3.3 significant surfaces
3.4 unsharpened knives
3.5 monobloc knives
3.6 normal corrected vision
4 Materials
4.1 General
12 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 silver-plated (see clause 6).
4.2.3 Any parts of table cutlery made of stainless steel and claimed to be silver-plated shall conform with the requirements of clause 6.
5 Construction
5.1 General
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.
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
5.4 Knife edges
5.5 Sprung fork guards
6 Silver-plated cutlery
6.1 General
6.2 Average thickness
13 Table 1 – Metals for table cutlery, composition limits
a Two alternatives are given for austenitic stainless steel. Further chemical compositions are given in EN 10088-1.
b Additions of Mo and V are optional.
14 Table 2 – Average thickness of classes of silver coating
6.3 Local thickness
6.4 Minimum hardness of hard silver coatings
6.5 Adhesion of silver coatings
7 Performance requirements
7.1 Resistance to corrosion
a) no transverse cracks shall have developed and no longitudinal cracks of a length exceeding 1,5 mm shall have developed;
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 …
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 mm2) on any part.
7.2 Strength
7.2.1 Knives with martensitic stainless steel blades and carving forks
7.2.2 Spoons, forks, ladles and unsharpened knives
7.3 Firmness of handle attachment
a) a pulling force of (180)N for 10 s;
b) a torque of (4,5) Nm, for items whose handles have a surface area of 37 cm2 or more, or a torque of (3,7) Nm for items whose handles have a surface area of less than 37 cm2. The torque shall be applied for 10 s.
7.4 Hardness of knife blades
15 Figure 1 – Example of a strength test showing a spoon
8 Marking and labelling
8.1 Marking
a) name and/or trade mark or other means of identifying the manufacturer or responsible supplier;
b) A reference to this Standard in combination with either the following roman numerals (see 6.2);
c) for unplated stainless steel cutlery the reference to this Standard shall be accompanied by identification of the average per…
8.2 Labelling
a) the number of this Standard and a statement that the cutlery meets the requirements of the standard;
b) for silver-plated cutlery, whether the silver coating is of first, second or third class and whether the base metal is of ferritic stainless steel or of austenitic stainless steel or of nickel silver;
c) for unplated stainless steel cutlery (other than blades made from martensitic stainless steel) whether it is of ferritic stainless steel or of austenitic stainless steel.
17 a) a cylinder, of approximately 16 mm diameter and 110 mm in length, to indicate the mass of glass beads per square centimetre picked up by hollow handles;
b) a rectangle, of approximately 100 mm × 30 mm × 1 mm, to indicate the mass of glass beads per square centimetre picked up by areas other than hollow handles.
18 Figure C.1 – Apparatus for corrosion test
19 Figure D.1 – Strength test apparatus for knives
20 Figure D.2 – Determination of angle of permanent deformation
22 BS EN ISO 8442-2:1998

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BS EN ISO 8442-2:1998
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