EN ISO 4651:1995

Cellular rubbers and plastics - Determination of dynamic cushioning performance (ISO 4651:1988)

Defines a method measuring the peak deceleration of a mass when it is dropped on a test piece. The test described is intended primarily for quality assurance; however, an annex contains notes to be considered if the test is used to obtain design data. Two figures show typical arrangements.

Schaumstoffe aus Kautschuk und Kunststoffen - Bestimmung der Stoßabsorption (ISO 4651:1988)

Diese Internationale Norm legt das Verfahren zur Bestimmung der Stossabsorption an Schaumstoffen aus Kautschuk sowie harten und weich-elastischen Schaumstoffen durch Messung der Spitzenverzögerung einer Masse, die auf einen Probekörper fälltl, fest. Die Prüfung dient vorzugsweise der Qualitätskontrolle. Im Anhang werden Hinweise gegeben, wie die erhaltenen Prüfergebnisse für Berechnungßwecke zu verwenden sind. Das Prüfverfahren ist ausschliesslich für Verpackungsmaterialien anwendbar.

Caoutchoucs et plastiques alvéolaires - Détermination de la capacité d'amortissement dynamique (ISO 4651:1988)

La présente Norme internationale prescrit une méthode pour la détermination de la capacité d'amortissement dynamique de caoutchoucs alvéolaires et de plastiques alvéolaires rigides et souples, par mesurage de la valeur crête de la décélération d'une masse tombant sur une éprouvette. L'essai décrit a pour but principal le contrôle de qualité ; en outre, du fait que ce type d'essai est également utilisé pour obtenir des données nécessaires à la réalisation de projets, des indications sont données dans l'annexe A pour servir à ce deuxième objectif. La méthode est applicable uniquement aux matériaux utilisés en emballage.

Penjeni polimerni materiali in gume - Določanje dinamične amortizacijske sposobnosti (ISO 4651:1988)

General Information

• Status: Published
• Publication Date: 14-May-1995
• Withdrawal Date: 29-Nov-1995
• ICS: 83.100 - Cellular materials
• Technical Committee: CEN/TC 249 - Plastics
• Drafting Committee: CEN/TC 249/SC 4 - Cellular plastics
• Current Stage: 9092 - Decision on results of review/2YR ENQ - revise - Review Enquiry
• Start Date: 21-Dec-2007
• Completion Date: 21-Dec-2007
• Ref Project: SIST EN ISO 4651:2000 - Cellular rubbers and plastics - Determination of dynamic cushioning performance (ISO 4651:1988)

Relations

• Amended By: EN ISO 4651:1995/A1:2008 - Cellular rubbers and plastics - Determination of dynamic cushioning performance - Amendment 1 (ISO 4651:1988/Amd 1:2006)
• Effective Date: 22-Dec-2008

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.DFLMVNHSchaumstoffe aus Kautschuk und Kunststoffen - Bestimmung der Stoßabsorption (ISO 4651:1988)Caoutchoucs et plastiques alvéolaires - Détermination de la capacité d'amortissement dynamique (ISO 4651:1988)Cellular rubbers and plastics - Determination of dynamic cushioning performance (ISO 4651:1988)83.100Penjeni polimeriCellular materialsICS:Ta slovenski standard je istoveten z:EN ISO 4651:1995SIST EN ISO 4651:2000en01-maj-2000SIST EN ISO 4651:2000SLOVENSKI
STANDARD



SIST EN ISO 4651:2000



SIST EN ISO 4651:2000



SIST EN ISO 4651:2000



SIST EN ISO 4651:2000



SIST EN ISO 4651:2000



INTERNATIONAL STANDARD INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION ’ MEXAYHAPOAHAR OPI-AHM3A~MR I-IO CTAHfiAPTM3AL/MM Cellular rubbers and plastics - Determination of dynamic cushioning Performance Caoutchoucs et plastiques aMo/aires - Determination de Ia capacife d’amortissemen t dynamique ISO 4651 Second edition 1988-12-01 Reference number ISO 4651 : 1988 (E) SIST EN ISO 4651:2000



ISO 4651 : 1988 (El Foreword ISO (the International Organization for Standardization) is a worldwide federation of national Standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Esch member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO 4651 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products. This second edition cancels and replaces the first edition (ISO 4651 : 1979), sub-clauses 3.1, 7.1, 7.2.1, 7.2.2, 8.2 and 9.2 of which have been technically revised. Annex A of this International Standard is for information only. 0 International Organkation for Standardkation, 1988 Printed in Switzerland SIST EN ISO 4651:2000



INTERNATIONAL STANDARD ISO 4651 : 1988 (El Cellular rubbers and plastics - Determination of dynamic cushioning Performance 1 Scope This International Standard specifies the procedure for deter- mining the dynamic cushioning Performance of cellular rubber materials and rigid and flexible cellular plastics, by measuring the peak deceleration of a mass when it is dropped on a test piece. The test described is intended primarily for quality assurance; in addition, however, since this type of test is also used to obtain design data, notes are given in annex A to assist in the latter respect. The method is applicable solely to materials used in packaging. 2 Normative references The following Standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All Standards are subject to revision, and Parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the Standards listed below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 291 : 1977, Plastics - Standard atmospheres for con- ditioning and testing. ISO 471 : 1983, Rubber - Standard temperatures, humidities and times for the conditioning and testing of test pieces. ISO 845 : 1977, CelMar rubbers and plastics - Determination of apparent density. ISO 1923 : 1981, Cellular plastics and rubbers - Determination o f linear dimensions. ISO 2231 : 1973, Fabric coated with rubber or plastics - Stan- dard atmospheres for conditioning and testing. ISO 3205 : 1976, Preferred fest temperatures. 3 Definitions For the purposes of this International Standard, the following definitions apply. 3.1 static stress, OST: The total mass of the hammer and any additional masses multiplied by the gravitational accelera- tion g, divided by the original area of the test piece. 3.2 peak deceleration, a: The maximum deceleration of the drop hammer during the impact on the test piece. In the Inter- national System of Units (SI), this is expressed in metres per second per second (m/s*). 3.3 displacement curve : The curve describing the displace- ment of the impacted surface of the test piece as a function of time during the impact. (See annex A.) 3.4 dynamic stress: The decelerating forte exerted by the material upon the drop hammer divided by the orig
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