1、BRITISH STANDARDBS EN 14850:2005Aerosol containers Metal containers with 25,4 mm aperture Measurement of contact height The European Standard EN 14850:2005 has the status of a British StandardICS 55.130g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g
2、40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 14850:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 22 February 2006 BSI 22 February 2006ISBN 0 580 47823 8National forewordThis
3、 British Standard is the official English language version of EN 14850:2005.The UK participation in its preparation was entrusted to Technical Committee PKW/0, Packaging, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretar
4、y.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue o
5、r of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text
6、; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an
7、inside front cover, the EN title page, pages 2 to 10, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14850
8、November 2005ICS 55.130English VersionAerosol containers - Metal containers with 25,4 mm aperture -Measurement of contact heightRcipients pour arosols - Rcipients mtalliques avecouverture de 25,4mm - Mesurage de la hauteur de contactAerosolverpackungen - Metallbehlter mit einer ffnungvon 25,4 mm - M
9、essung der KontakthheThis European Standard was approved by CEN on 14 October 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and
10、bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility
11、of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, La
12、tvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CE
13、N All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14850:2005: EEN 14850:2005 (E) 2 Contents Page Foreword 3 Introduction4 1 Scope .5 2 Normative references .5 3 Terms and definitions.5 4 Apparatus 7 5 Procedure 8 6 Test report .9 EN 1485
14、0:2005 (E) 3 Foreword This document (EN 14850:2005) has been prepared by Technical Committee CEN/TC 261 “Packaging”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at th
15、e latest by May 2006, and conflicting national standards shall be withdrawn at the latest by May 2006. This draft European Standard is one of a series of thirteen related standards with the following titles: EN 14847, Aerosol containers Tinplate containers Dimensions of the 25,4 mm aperture. EN 1484
16、8, Aerosol containers Metal containers with 25,4 mm aperture Dimensions of valve cups. EN 14849, Aerosol containers Glass containers Dimensions of aerosol valve ferrules. EN 14850, Aerosol containers Metal containers with 25,4 mm aperture Measurement of contact height. EN 14851, Aerosol containers A
17、erosol foam flammability test. EN 14852, Aerosol containers Determination of the ignition distance of the spray jet. EN 14853, Aerosol containers Enclosed space ignition test. EN 14854, Aerosol containers Glass containers Dimensions of the neck finish. prEN 15006, Metal aerosol containers Aluminium
18、containers Dimensions of the 25,4 mm (one inch) aperture. prEN 15007, Metal aerosol containers Tinplate containers Dimensions of three-piece cans. prEN 15008, Metal aerosol containers Dimensions of 1-piece aluminium can with 25,4 mm aperture. prEN 15009, Aerosol containers Bicompartmented aerosol co
19、ntainers. prEN 15010, Aerosol containers Aluminium containers Tolerances of the fundamental dimensions in connection with the clinch. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Aust
20、ria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14850:2005 (E) 4 Introduction
21、 The contact height is a measurement used for adjusting the clinching tool (jaws) and is therefore indispensable, but alone is not sufficient, to ensure safe sealing of the container. Its control during the production of aerosol containers helps to ensure safe sealing and uniformity of the product.
22、EN 14850:2005 (E) 5 1 Scope This European Standard describes a method of measuring the contact height of the compression closure between the valve cup and the aperture of an aerosol container. This standard applies to aerosol containers with 25,4 mm apertures as specified in EN 14847 and prEN 15006
23、fitted with aerosol valve cups as specified in EN 14848. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (incl
24、uding any amendments) applies. EN 14847, Aerosol containers Tinplate containers Dimensions of the 25,4 mm (one inch) aperture. EN 14848, Aerosol containers Metal containers with 25,4 mm aperture Dimensions of valve cups. prEN 15006, Metal aerosol containers Aluminium containers Dimensions of the 25,
25、4 mm (one inch) aperture. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 contact height distance between the plane of the top of the lip of the aerosol containers aperture and the centre of the radius of curvature of the extremities of the j
26、aws of the clinching tool when fixing the valve cup NOTE See Figure 1.EN 14850:2005 (E) 6 Key DiInternal diameter of aperture = 25,4 mm t Thickness of the wall of the cup = 0,3 mm R Radius of the jaws = 1,2 mm CDDiameter of the jaws = 27,1 mm h Contact height hmm Figure 1 Contact height symbols EN 1
27、4850:2005 (E) 7 4 Apparatus 4.1 Measuring instrument, as shown in Figure 3 and specified in clause 5, that reproduces the clinching conditions of Figure 1. Key 1 Point of hard contact 2 Diameter of the clinching jaws Figure 2 Diameter of the clinching jaws EN 14850:2005 (E) 8 Key 1 Contact height 2
28、Constant of the instrument Figure 3 Constant of the instrument 5 Procedure Replace the tips of the clinching tool, which have a radius of curvature of 1,2 mm and which form a clinch diameter of 27,1 mm, by a measuring instrument that has a radius r in mm given by: tRrc+= where Rcis the radius of cur
29、vature of the clinching tool, in millimetres (mm) = 1,2 mm; t is the thickness of the wall of the mounting cup, in millimetres (mm) = 0,3 mm. Arrange it to touch the internal profile of the aperture at the point of direct contact (see Figure 2). The centre of the 1,5 mm radius will be 0,35 mm (const
30、ant for the instrument, see Figure 3) from the vertical internal tangent of the aperture, and at a distance h (contact height) from the horizontal tangential plane of the aperture. The value 0,35 mm is given by the formula: ()35022 ,/DitCtRD=+ by substituting the symbols by the values given in Figur
31、e 1. EN 14850:2005 (E) 9 NOTE Measuring instruments based on these principles are commercially available. Since these instruments give comparative results they shall first be adjusted using a setting piece. After setting the instrument to zero with the setting piece, measure the contact height at th
32、ree equidistant points on the aperture. The contact height is the arithmetic mean of the three readings. Also record the maximum and minimum values. The contact element which has a radius of curvature 1,5 mm is held in contact with the internal profile of the aperture by a spring. 6 Test report The
33、test report shall include the following: a) number of containers tested and their type; b) equipment used; c) number of satisfactory containers (see EN 14847 and prEN 15006); d) number of unsatisfactory containers (see EN 14847 and prEN 15006); e) date of testing. EN 14850:2005 (E) 10 Bibliography 1
34、 EN 14848, Aerosol containers Metal containers with 25,4 mm aperture Dimensions of valve cups. blankBS EN 14850:2005BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on stand
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