GB/T 9639-1988
Plastics-Film and sheeting-Determination of impact resistance--Free falling dart method
2009-05
- Standard No.
- GB/T 9639-1988
- Language
- Chinese
- Release Date
- 1988
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Replace By
- GB/T 9639.1-2008
- Lastest
- GB/T 9639.1-2008
- Scope
- This standard specifies the energy at which 50% of plastic film and sheet samples are broken under the impact of a free-falling dart at a given height. Expressed in terms of impact damage mass. This standard applies to plastic films and sheets with a thickness of less than 1 mm.
GB/T 9639-1988 history
- 2008 GB/T 9639.1-2008 Plastics film and sheeting.Determination of impact resistance by the free-falling dart method.Part1:Staircase method
- 1988 GB/T 9639-1988 Plastics-Film and sheeting-Determination of impact resistance--Free falling dart method