6383/2 (TSO International Standard Plastics -- Film and sheeting - Determination of tear resistance Part 2 : Elmendorf method Plastiques - Film et feuille -- Determination de la résistance au dechirement -- Partie 2: Methode Elmendorf First edition --. 1983-09-01 6383/2-1983 (E) UDC 678.5/.8-416 : 620.176.245 Ref. No. ISO 6383/2-1983(E) Descriptors:plastics, tosts,tear strength,teartests,test specimens. 0 Copyright International Organization for Standardization Price based on 6 pages d without license from IHS Not for Resale Foreword ISo (the International Organization for Standardization) is a worldwide federation of national standards bodies (Iso member bodies). The work of developing International Standards is carried out through iSo technical committees. Every member body interested in a subject for which a technical committee has been authorized has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with IsO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approvai before their acceptance as International Standards by the ISo Council. International Standard iSO 6383/2 (formerly ISO/DIS 6824) was developed by Technical Committee ISO/TC 61, Plastics, and was circulated to the member bodies in February 1980. It has been approved by the member bodies of the following countries : Australia Philippines Germany, F.R. Austria Hungary Poland Belgium India Portugal Brazil Ireland Romania Canada Israel South Africa, Rep. of China Italy Spain Czechoslovakia ueder Switzerland Egypt, Arab Rep. of Korea, Rep. of United Kingdom Finiand USA Mexico France Netherlands USSR The member body of the following country expressed disapproval of the document on technical grounds : Sweden @ International Organization for Standardization, 1983 Printed in Switzerland d without license from IHS Not for Resale ISO 6383/2-1983 (E) INTERNATIONAL STANDARD Plastics - Film and sheeting -- Determination of tear resistance Part 2: Elmendorf method References Introduction 2 0 ISo 291, Plastics - Standard atmospheres for conditioning ISo 6383 consists of the following parts : and testing. Part 1 : Trouser tear method. Part 2: Elmendorf method. Iso 4591, Plastics - Film and sheeting - Determination of average thickness of a sample and average thickness and yield of a roll by gravimetric techniques (gravimetric thickness). 1 Scope and field of application ISO 4593, Plastics - Film and sheeting - Determination of thickness by mechanical scanning. 1.1 This part of ISO 6383 specifies a method of determining the force required to propagate a tear through a specified Definition 3 flexible plastic sheeting or film, under specified conditions of loading. For the purpose of this part of ISo 6383, the following defini- tion applies. The upper limit of thickness that can be tested depends on the tearing force of the material in relation to the capacity of the tear resistance : The force, in newtons, required to tear a test testing machine, specimen by the specified method. Materials that can be tested according to this method include flexible poly(vinyl chloride) (PVC) and polyolefin films, but Principle 4 variable elongation and oblique tearing effects on the more ex- tensible films may cause poor reproducibility of test results. A test specimen having a specified precut slit is subjected to a This method may not be suitable for testing more rigid materials such as rigid PVC, nylon and polyester films. specified dimensions. The energy expended in tearing the specimen is used to calculate the tear resistance of the The tear resistance test specified by this method is ap- 1.2 specimen. plied to specimens cut from semi-finished and finished pro- ducts. The. test is suitable for the control of production and manufactured products as well as for acceptance or rejection Apparatus 5 testing under specifications for semi-