OSI 6383/2 International Standard INTERNATIONAL ORGANIZATION FOR STANDARDIZATION+MEXAYHAPOAHAR OPTAHM3AUMH NO CTAHAAPTM3AUWM+ORGANISATION INTERNATIONALE DE NORMALISATION Plastics - Film and sheeting - Determination oftearresistance Part 2: Elmendorf method Plastiques -Film et feuille -Determination de la resistance au dechirement --Partie 2: Methode Elmendorf First edition ---1983-09-01 ISO6383/2-1983(E) UDC678.5/.8-416:620.176.245 Ref.No.ISO6383/2-1983(E) Doscriptors: plastics, tosts, tcar strength,tear tests, test spocimens. Price based on 6 pages 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 approval before their acceptance as International Standards by the ISo Council. International Standard ISO6383/2(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 Germany, F.R. Philippines Austria Hungary Poland Belgium India Portugal Ireland Romania Canada Israel South Africa, Rep. of China Italy Spain Czechoslovakia Japan Switzerland Egypt, Arab Rep. of Korea, Rep. of United Kingdom Finiand Mexico USA France Netherlands USSR The member body of the following country expressed disapproval of the document on technical grounds: Sweden International OrganizationforStandardization,1983 Printed in Switzerland ISO6383/2-1983(E) INTERNATIONALS STANDARD Plastics - Film and sheeting --- Determination of tear resistance Part 2: Elmendorf method References 0 Introduction 2 ISo 6383 consists of the following parts : ISo291,Plastics-Standard atmospheresfor conditioning and testing. Part 1: Trouser tear method. Part 2: Elmendorf method. ISO4591,Plastics Film and sheeting Determination of - average thickness ofa sample and average thickness and yield of a roll bygravimetric techniques (gravimetric thickness). 1 Scopeandfieldofapplication ISO4593，Plastics Film and sheeting- Determinationof 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 distance and from a specified slit, cut in a test specimen of thin 3 Definition 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 4 Principle 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 Thismethod maynot besuitable fortestingmore rigid tearing force generated by the energy stored in a pendulum of materials such as rigid PVC, nylon and polyester films. specimen is used to calculate the tear resistance of the 1.2The tear resistance test specified by this method is ap- specimen. pliod to specimens cut from semi-finished and finished pro- manufactured products as well as for acceptance or rejection Apparatus testing under specifications for semi-finished and finished pro- ducts, provided that it has bee