This standard specifies the determination method for evaluating the sticking of soft plastic films and sheets after they are bonded together for a period of time under specified temperature and pressure by using qualitative analysis and quantitative analysis.
GB/T 39935-2021 Referenced Document
ISO 291 Plastics - Standard atmospheres for conditioning and testing
GB/T 39935-2021 history
2021GB/T 39935-2021 Plastics—Film and sheeting—Determination of blocking resistance