1、BRITISH STANDARDBS EN 14477:2004Packaging Flexible packaging material Determination of puncture resistance Test methodsThe European Standard EN 14477:2004 has the status of a British StandardICS 55.040g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g4
2、0g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 14477:2004This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2006 BSI 2006ISBN 0 580 48065 8National forewordThis British Standar
3、d is the official English language version of EN 14477:2004.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 secretary.Cross-referenc
4、esThe 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 or of British Sta
5、ndards 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; present to the
6、 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 inside front cov
7、er, the EN title page, pages 2 to 9 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 14477April 2004ICS 55.040English versionPack
8、aging - Flexible packaging material - Determination ofpuncture resistance - Test methodsEmballage - Matriaux demballage souples -Dtermination de la rsistance la perforation - MthodesdessaiVerpackung, Flexible Packstoffe - Bestimmung derDurchstofestigkeit - PrfverfahrenThis European Standard was appr
9、oved by CEN on 16 January 2004.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 bibliographical references concerning such nationals
10、tandards 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 of a CEN member into its own language and notified t
11、o 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, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Nor
12、way, 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 2004 CEN All rights of exploitation in any form and by any
13、means reservedworldwide for CEN national Members.Ref. No. EN 14477:2004: EEN 14477:2004 (E)2Contents PageForeword. 31 Scope . 42 Principle. 43 Apparatus 44 Calibration . 75 Test specimens. 76 Probe speed 77 Expression and calculation of results 78 Precision data . 89 Test report . 8Bibliography . 9E
14、N 14477:2004 (E)3ForewordThis document (EN 14477:2004) has been prepared by Technical Committee CEN/TC 261 “Packaging”, thesecretariat of which is held by AFNOR.This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at th
15、e latest by October 2004 and conflicting national standards shall be withdrawn atthe latest by October 2004.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech
16、 Republic,Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerlandand United Kingdom.EN 14477:2004 (E)41 ScopeThis standard describes a test method
17、of determining the puncture resistance of a flexible packaging material.The method is applicable to multilayer flexible packaging materials.2 PrincipleA specimen of the flexible packaging material is fastened in a sample holder. A probe penetrates thespecimen with a constant speed. The force and the
18、 elongation needed to penetrate the specimen arerecorded.3 Apparatus3.1 Universal testing apparatus, with means of measuring elongation.3.2 Compression load cell3.3 Penetration probe made of hardened steel as shown in Figure 1A 0,8 mm diameter probe with a rounded tip is used. The rounded tip of the
19、 probe shall have a radius of 0,4mm.3.4 Fixture for securing the probe to the load cell or to a solid base.3.5 Sample Holder as shown in Figure 2 or equivalent.3.6 Blanking punch with an outer diameter matching the diameter of the sample holder shall be used.EN 14477:2004 (E)5Dimensions in mm1 210 3
20、5 15 Key1 Probe tip 0,8 mm 0,005 mm2 Probe base 2,0 mm 0,010 mmFigure 1 Penetration probeEN 14477:2004 (E)6123456789Key1 Probe fixture2Screw3 Probe tip4Nut5 Probe guide6 Friction rubber7 Specimen8 Main body9Diameter 10 mm 0,1 mmFigure 2 Example of a sample holderEN 14477:2004 (E)74 CalibrationThe pr
21、obe should be calibrated after at least 1000 measurements using a standard calibrating film made ofbiaxially oriented PET. The tip of the probe shall at the same time be checked for wear or damage using asuitable microscope. The friction rubber shall be replaced at frequent intervals or at signs of
22、wear.5 Test specimensA minimum of 10 specimens shall be cut out evenly spaced across the reel or sheet being tested. Thespecimens shall be conditioned at (23 2)C and (50 5)% RH for 48 hours before testing. The test shall becarried out at the same conditions.6 Probe speedThe test can be carried out a
23、t one of the following speeds expressed in mm/min: 1 - 5 - 10 - 50 - 100.7 Expression and calculation of resultsThe force is expressed in N and the elongation in mm. For the determination of the energy the integral belowthe graph showing the force and elongation shall be calculated. Calculate the me
24、an value and standarddeviation. A typical graph showing the force and elongation is shown in Figure 3.xNYKeyYForce in NX Elongation in mmFigure 3 Graph showing Force and Elongation (Schematic)EN 14477:2004 (E)88 Precision dataNOTE Precision is not known because interlaboratory data is not available.
25、 Repeatability and reproducibility shouldbe determined according to ISO 5725-2, within each laboratory.9 Test reportThe test report shall include the following information:a) reference to this method;b) date and place of the test;c) description of the material being tested;d) indication of which sid
26、e of the specimen is being penetrated;e) speed of the probe;f) force at break in N, elongation at break in mm and energy in mJ;g) any unusual features noted during the measurements;h) any deviation from the method.EN 14477:2004 (E)9BibliographyISO 5725-2 Accuracy (trueness and precision) of measurem
27、ent methods and results - Part 2: Basicmethod for the determination of repeatability and reproducibility of a standard measurementmethodBS EN 14477:2004BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standar
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