2009GB/T 16578.2-2009 Plastics.Film and sheeting.Determination of tear resistance.Part 2:Elmendorf method
1989GB 11999-1989 Test method for tear resistance of plastic films and sheets Ellemendorf
GB 11999-1989 Test method for tear resistance of plastic films and sheets Ellemendorf was changed to GB/T 16578.2-2009 Plastics.Film and sheeting.Determination of tear resistance.Part 2:Elmendorf method.