SIST EN 12472:2006+A1:2009
(Main)Method for the simulation of wear and corrosion for the detection of nickel release from coated items
Method for the simulation of wear and corrosion for the detection of nickel release from coated items
This European Standard specifies a method for accelerated wear and corrosion, to be used prior to the detection of nickel release from coated items that come into direct and prolonged contact with the skin.
Simulierte Abrieb- und Korrosionsprüfung zum Nachweis der Nickelabgabe von mit Auflagen versehenen Gegenständen
Méthode de simulation de l'usure et de la corrosion pour la détermination du nickel libéré par les objets revêtus
L’usure des objets en contact avec la peau dépend beaucoup du type et de la forme de ces objets et des activités de
la personne concernée. Le but de la présente méthode est de simuler l’usure et la corrosion que subit un article revêtu
pendant deux ans d’usage normal. Par nature, il s’agit d’une solution pragmatique aux problèmes posés par
l’évaluation d’objets revêtus qui entrent en contact avec la peau et peuvent être soumis, à des degrés divers,
à différents types d’usure.
Afin de démontrer la conformité à la Directive 94/27/CE, il convient de soumettre les objets à essai conformément
aux normes européennes harmonisées appropriées, dont les références ont été publiées par la Commission
Européenne au Journal Officiel des Communautés Européennes. Il s’agit actuellement de l’EN 1810 et de l’EN 1811
ainsi que de la présente Norme européenne.
Simulirana obrabno-korozijska metoda za odkrivanje niklja iz prevlečenih predmetov
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.OHþHQLKSUHGPHWRYSimulierte Abrieb- und Korrosionsprüfung zum Nachweis der Nickelabgabe von mit Auflagen versehenen GegenständenMéthode de simulation de l'usure et de la corrosion pour la détermination du nickel libéré par les objets revêtusMethod for the simulation of wear and corrosion for the detection of nickel release from coated items39.060NakitJewelleryICS:Ta slovenski standard je istoveten z:EN 12472:2005+A1:2009SIST EN 12472:2006+A1:2009en,fr,de01-september-2009SIST EN 12472:2006+A1:2009SLOVENSKI
STANDARD
SIST EN 12472:2006+A1:2009
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12472:2005+A1
June 2009 ICS 39.060 Supersedes EN 12472:2005English Version
Method for the simulation of wear and corrosion for the detection of nickel release from coated items
Méthode de simulation de l'usure et de la corrosion pour la détermination du nickel libéré par les objets revêtus
Simulierte Abrieb- und Korrosionsprüfung zum Nachweis der Nickelabgabe von mit Auflagen versehenen Gegenständen This European Standard was approved by CEN on 21 November 2005 and includes Amendment 1 approved by CEN on 21 May 2009.
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 concerning such national standards may be obtained on application to the CEN 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 into its own language and notified to the CEN Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12472:2005+A1:2009: ESIST EN 12472:2006+A1:2009
EN 12472:2005+A1:2009 (E) 2 Contents page Foreword . 3 Introduction . 4 1 Scope . 5 2 Normative references . 5 3 Principle . 5 4 Reagents and materials . 5 4.1 Corrosion . 5 4.2 Wear . 6 5 Procedure . 8 5.1 Sample preparation . 8 5.2 Corrosion procedure . 8 5.3 Wear procedure . 8 5.4 Determination of nickel release . 9 6 Test report . 9 Annex A (informative)
Detailed examples of how to attach different types of items . 10 A.1 General . 10 A.2 Attachment of items with only one side in contact with the skin . 10 A.3 Spectacle frames . 10 A.4 Chains, watches, bracelets, rings etc. . 12 Bibliography . 14
SIST EN 12472:2006+A1:2009
EN 12472:2005+A1:2009 (E) 3 Foreword This document (EN 12472:2005+A1:2009) has been prepared by Technical Committee CEN/TC 347 “Methods for analysis of allergens”, the secretariat of which is held by DS. 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 December 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document includes Amendment 1, approved by CEN on 2009-05-21. This European Standard supersedes !EN 12472:2005." The start and finish of text introduced or altered by amendment is indicated in the text by tags !". This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 12472:2006+A1:2009
EN 12472:2005+A1:2009 (E) 4 Introduction The wear of objects in contact with the skin depends very much on the type and shape of the objects and the activities of the person concerned.
This procedure attempts to simulate the wear and corrosion on a coated article during two years of normal use.
By its nature this is a pragmatic solution to the problems posed by the evaluation of coated items in contact with the skin, which may be subject to several kinds and varying degrees of wear. In order to show compliance with Directive 94/27/EC, items should be tested in accordance with the appropriate European harmonised standard(s), the references of which have been published by the European Commission in the Official Journal of the European Communities.
Currently, these are EN 1810, EN 1811 and this European Standard. SIST EN 12472:2006+A1:2009
EN 12472:2005+A1:2009 (E) 5 1 Scope This European Standard specifies a method for accelerated wear and corrosion, to be used prior to the detection of nickel release from coated items that come into direct and prolonged contact with the skin. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1811, Reference test method for release of nickel from products intended to come into direct and prolonged contact with the skin 3 Principle The items to be tested are exposed to a corrosive atmosphere before being placed into a tumbling barrel together with a wear medium of abrasive paste and granules.
The barrel is rotated so as to subject the test pieces to wear from the wear medium.
The items are then tested for nickel release in accordance with EN 1811. 4 Reagents and materials Except where indicated, all reagents and materials that can come into contact with samples or reagents shall be demonstrably free of nickel, and all reagents shall be of recognized analytical grade or better. 4.1 Corrosion 4.1.1 Container Container with a lid and a device for suspending the test pieces, all parts made of inert material (e.g. glass or plastic). SIST EN 12472:2006+A1:2009
EN 12472:2005+A1:2009 (E) 6 4.1.2 Corrosive medium Dissolve 50 g DL-lactic acid, > 85 % purity, and 100 g sodium chloride in 1 000 ml de-ionized water. 4.1.3 Degreasing solution An appropriately diluted, neutral, commercially available detergent shall be used, for example, a 0,5 % aqueous solution of sodium dodecylbenzene sulfonate. 4.1.4 De-ionized water De-ionized water, specific conductivity maximum 1 µS/cm. 4.1.5 Laboratory oven Laboratory oven, capable of maintaining a temperature of (50 ± 2) °C. 4.2 Wear 4.2.1 Tumbling barrel and retaining assembly The tumbling barrel and retaining assembly shall be in accordance with the following description: barrel of hexagonal cross-section and internal diameter of 19 cm perpendicular distance between opposite sides designed to rotate around its axis which is orientated horizontally (see Figure 1); retaining assembly, suitable for attaching the test items so that they do not come into contact with each other during tumbling; retaining assembly, with items attached, shall be inserted into the barrel for tumbling. NOTE Examples are given in Annex A of retaining assemblies suitable for attaching typical items. SIST EN 12472:2006+A1:2009
EN 12472:2005+A1:2009 (E) 7
Dimensions in millimetres
Key l length of barrel axis, as required a axis of rotation Figure 1 — View of tumbling barrel
4.2.2 Wear test apparatus A device capable of imparting to the barrel (4.2.1) a constant (30 ± 2) rotations per minute.
The device shall be capable of allowing the direction of rotation to be reversed. NOTE Information on sourcing suitable equipment is available from the CEN Management Centre. 4.2.3 Abrasive paste Abrasive paste produced fo
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