1、BRITISH STANDARDBS EN 14852:2005Aerosol containers Determination of the ignition distance of the spray jetThe European Standard EN 14852:2005 has the status of a British StandardICS 13.220.40; 55.130g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g
2、59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Tue May 16 06:51:35 BST 2006, Uncontrolled Copy, (c) BSIBS EN 14852:2005This British Standard was published under the authority of the Standards Policy and Strategy Committ
3、ee on 31 March 2006 BSI 2006ISBN 0 580 48070 4National forewordThis British Standard is the official English language version of EN 14852:2005.The UK participation in its preparation was entrusted to Technical Committee PKW/0, Packaging, which has the responsibility to: A list of organizations repre
4、sented on this committee can be obtained on request to its secretary.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”,
5、or by using the “Search” facility of the BSI Electronic Catalogue or 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 im
6、munity from legal obligations. aid enquirers to understand the text; 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 i
7、n the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 8, 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. Da
8、te CommentsLicensed Copy: Wang Bin, na, Tue May 16 06:51:35 BST 2006, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14852November 2005ICS 13.220.40; 55.130English VersionAerosol containers - Determination of the ignition distance of thespray jetRcipients pour arosol - D
9、termination de la distancedinflammation du jet de pulvrisationAerosolpackungen - Ermittlung des Entzndungsabstandesdes SprhstrahlesThis 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 fo
10、r giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and 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 ve
11、rsions (English, French, German). A version in any other language made by translationunder the responsibility 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, C
12、yprus, 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.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPE
13、N DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14852:2005: ELicensed Copy: Wang Bin, na, Tue May 16 06:51:35 BST 2006, Uncon
14、trolled Copy, (c) BSIEN 14852:2005 (E) 2 Contents Page 1 Scope .4 2 Terms and definitions.4 3 Principle.4 4 Apparatus 4 5 Test conditions .4 6 Preparation of test apparatus 5 7 Test sequence .5 8 Test procedure 5 9 Test report .7 Licensed Copy: Wang Bin, na, Tue May 16 06:51:35 BST 2006, Uncontrolle
15、d Copy, (c) BSIEN 14852:2005 (E) 3 Foreword This document (EN 14852:2005) 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
16、 by endorsement, at the 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,
17、4 mm 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 25,4 mm (one inch) aperture. EN 14849, Aerosol containers Glass containers Dimensions of aerosol valve ferrules. pr
18、EN 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. EN 14850, Aerosol containers Metal containers with 25,4 mm aperture Measurement of contact height. EN 14851, Aerosol
19、containers Aerosol 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 15009, Aerosol containers Bico
20、mpartmented aerosol containers. 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 E
21、uropean Standard: Austria, 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. Licensed C
22、opy: Wang Bin, na, Tue May 16 06:51:35 BST 2006, Uncontrolled Copy, (c) BSIEN 14852:2005 (E) 4 1 Scope This European Standard describes a method of determining the maximum distance between the orifice of an aerosol container and a flame that results in ignition and sustained combustion of an aerosol
23、 spray. The standard applies to aerosol products that have a spray distance of 150 mm or more. It does not apply to aerosol containers fitted with a metering valve. NOTE Aerosol products dispensed in the form of a foam, mousse, gel or paste which have a spray distance of less than 150 mm are specifi
24、ed in EN 14851. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 ignition source gas burner providing a blue non-luminous flame 40 mm to 50 mm in height 2.2 sustained combustion stable flame maintained for 5 s 3 Principle An aerosol is sprayed
25、 towards an ignition source at distances from 150 mm to 900 mm in increments of 150 mm. Any resulting ignition is noted and any sustained combustion which occurs is timed for up to 5 s. 4 Apparatus 4.1 Scale, for measuring height of flame, graduated in millimetres. 4.2 Support and clamp, for holding
26、 the graduated scale in position. 4.3 Chronometer (stopwatch), accurate to 0,2 s. 4.4 Candle, wax taper, match or lighter. 4.5 Calibrated laboratory scales (balance), accurate to 0,1 g. 4.6 Water bath, accurate to 1 C and maintained at 20 C. 4.7 Thermometer, accurate to 1 C. 4.8 Hygrometer accurate
27、to 5 %. 4.9 Pressure, gauge, accurate to 0,1 bar. 5 Test conditions The tests shall be carried out in a fume hood capable of ventilation, with the temperature controlled at 20 C 5 C and relative humidity in the range 30 % to 80 %. Ventilate the fume hood and room for at least 3 min after each test.
28、Licensed Copy: Wang Bin, na, Tue May 16 06:51:35 BST 2006, Uncontrolled Copy, (c) BSIEN 14852:2005 (E) 5 WARNING Take all necessary safety precautions to prevent the inhalation of combustion products. 6 Preparation of test apparatus Condition a minimum of 3 full aerosol containers per product to 20
29、C 1 C by immersing at least 95 % of the container in water at this temperature for at least 30 min before each test. Before testing, prime each aerosol by discharging for approximately 1 s. NOTE The purpose of this action is to remove non-homogeneous material from the diptube. 7 Test sequence Each a
30、erosol container shall be tested: a) when full by carrying out the complete procedure, with the gas burner in the range of 150 mm to 900 mm from the actuator of the aerosol container; b) when 10 % to 12 % full (nominal % by weight) by undergoing only one test, either at 150 mm from the actuator when
31、 the spray from a full container did not ignite at all, otherwise at the Flame Ignition Distance of the spray of a full container plus 150 mm. The ignition source shall be positioned accordingly. 8 Test procedure NOTE The following procedure requires spray to be tested at intervals of 150 mm in the
32、distance between the burner flame and the aerosol actuator orifice, within the range of 150 mm to 900 mm. It is convenient to start at 600 mm distance between burner flame and aerosol actuator. The distance between burner flame and aerosol actuator should be increased by 150 mm if the spray ignites
33、at 600 mm distance or decreased by 150 mm if the spray does not ignite. The aim of the procedure is to determine the maximum distance between aerosol actuator and burner flame that leads to sustained combustion of the spray or to determine that ignition could not be obtained at 150 mm distance betwe
34、en the burner flame and the aerosols actuator. 8.1 Record the temperature and relative humidity of the environment (see clause 5). 8.2 Determine the total mass of the full aerosol dispenser. 8.3 Determine the internal pressure within the aerosol dispenser and initial discharge rate at 20 C 1 C. If t
35、he internal pressure or the initial discharge rate indicate that the dispenser is likely to be faulty or incompletely filled it shall not be used for the test. 8.4 Support the gas burner on a flat horizontal surface or fix the burner to a support by means of a clamp. 8.5 Ignite the gas burner and ad
36、just it to produce a non-luminous flame 40 mm to 50 mm high. 8.6 Place the aerosol actuators orifice at the required distance from the flame. NOTE The aerosol is tested in the position it is designed to be used in, e.g. upright or inverted. 8.7 Ensure the aerosol actuators orifice is directed toward
37、s and level with the burner flame, so that the spray will be expelled through the top half of the flame (see Figure 1). Licensed Copy: Wang Bin, na, Tue May 16 06:51:35 BST 2006, Uncontrolled Copy, (c) BSIEN 14852:2005 (E) 6 Figure 1 Apparatus for measuring the ignition distance of an aerosol spray
38、8.8 Immediately before spraying, shake the dispenser in accordance with the manufacturers instructions. 8.9 Follow strictly the manufacturers instructions for use, including whether the container is intended to be used in the upright or inverted position. Actuate the valve of the aerosol container,
39、to discharge its contents for 5 s. If ignition occurs, continue discharging and time the duration of the flame for up to 5 s, from the start of ignition. 8.10 Record the ignition results for the relevant distance between the gas burner and the aerosol container in a table similar to that shown in Ta
40、ble 1. 8.11 If no ignition occurs during step 8.9, test the aerosol in alternative orientations, e.g. inverted for upright products, to determine whether ignition is obtained. 8.12 Repeat steps 8.7, 8.8, 8.9, 8.10 and 8.11 twice more (a total of three times) for the same container at the same distan
41、ce between the gas burner and the aerosol actuator. 8.13 Repeat the test procedure (8.6 to 8.12) for another two aerosol containers of the same product at the same distance between gas burner and aerosol actuator. 8.14 Repeat steps 8.6 to 8.13 of the test procedure, increasing or decreasing the dist
42、ance between the aerosol actuator and the flame by 150 mm (within the range 150 mm to 900 mm), depending on the outcome of each test. 8.15 If no ignition occurs at 150 mm, the procedure is finished for initially full containers. The procedure is also finished when ignition and sustained combustion i
43、s obtained at a distance of 900 mm. If ignition could not be obtained at 150 mm distance, record that ignition did not occur. The maximum distance between burner flame and the aerosols actuator for which an ignition and sustained combustion was observed is noted as the Ignition Distance in all other
44、 circumstances. 8.16 One test should also be conducted on 3 containers of 10 % to 12 % nominal fill level. Discharge an aerosol container to a 10 % to 12 % nominal fill level (by mass) in bursts of 30 s maximum. Observe a 300 s minimum time period between bursts. During this interim period container
45、s shall be placed in the water bath for conditioning. These containers should be tested at a distance between the aerosols actuator and the burner flame of the Flame Ignition Distance of full containers plus 150 mm. 8.17 Repeat steps 8.6 to 8.13 for 10 % to 12 % nominal fill aerosol containers, omit
46、ting step 8.11 and 8.12. Perform this test only once on each container in the position (e.g. upright and inverted) that resulted in ignition (if any) when the full container was tested. Licensed Copy: Wang Bin, na, Tue May 16 06:51:35 BST 2006, Uncontrolled Copy, (c) BSIEN 14852:2005 (E) 7 8.18 Reco
47、rd all results in a table similar to that shown in Table 1. 9 Test report The containers with a 10 % to 12 % nominal fill level are tested only once. The result table needs only one result per container indicated. Table 1 Recording of results Date Temperature Relative humidity C % Name of product Ne
48、t volume ml Container 1 Container 2 Container 3 Initial level of filling % % % Container distance Test 1 2 3 1 2 3 1 2 3 15 cm Ignition? (Y/N) 30 cm Ignition? (Y/N) 45 cm Ignition? (Y/N) 60 cm Ignition? (Y/N) 75 cm Ignition? (Y/N) 90 cm Ignition? (Y/N) Observations Licensed Copy: Wang Bin, na, Tue M
49、ay 16 06:51:35 BST 2006, Uncontrolled Copy, (c) BSIEN 14852:2005 (E) 8 Bibliography 1 EN 14851, Aerosol containers Aerosol foam flammability test. Licensed Copy: Wang Bin, na, Tue May 16 06:51:35 BST 2006, Uncontrolled Copy, (c) BSIblankLicensed Copy: Wang Bin, na, Tue May 16 06:51:35 BST 2006, Uncontrolled Copy, (c) BSIBS EN 14852:2005BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for prepa
copyright@ 2008-2019 麦多课文库（www.mydoc123.com）网站版权所有
备案/许可证编号：苏ICP备17064731号-1