This document specifies two cup-type determination methods for the water vapor transmission properties of plastic films and sheets—the weight-increase method and the weight-loss method. This document is applicable to the determination of water vapor transmission properties of plastic films and sheets. The water vapor transmission performance of paper, non-woven fabrics, artificial leather and other materials can be used as a reference.
GB/T 1037-2021 Referenced Document
GB/T 2918 Standard environment for conditioning and testing of plastic specimens
GB/T 6672 Plastics film and sheeting Determination of thickness by mechanical scanning
GB/T 6682 Water for analytical laboratory use.Specification and test methods
ISO 2602:1980 Statistical interpretation of test results; estimation of the mean; confidence interval
GB/T 1037-2021 history
2021GB/T 1037-2021 Test method for water vapor transmission of plastic film and sheet—Desiccant method and water method
1988GB/T 1037-1988 Test method for water vapor transmission of plastic film and sheet--Cup method