点击图片查看大图ASTM F1249红外法水蒸气透过率测试—标准名称
ASTM F1249 Standard Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor
ASTM F1249红外法水蒸气透过率测试
ASTM F1249红外法水蒸气透过率测试—适用范围
Scope：
This test method covers a procedure for determining the rate of water vapor transmission through flexible barrier materials. The method is applicable to sheets and films up to 3 mm (0.1 in.) in thickness, consisting of single or multilayer synthetic or natural polymers and foils, including coated materials. It provides for the determination of (1) water vapor transmission rate (WVTR), (2) the permeance of the film to water vapor, and (3) for homogeneous materials, water vapor permeability coefficient.
ASTM F1249红外法水蒸气透过率测试—引用文件
ASTM E96/E96M Test Methods for Water Vapor Transmission of Materials
ASTM E104 Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions
ASTM E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM E178 Practice for Dealing With Outlying Observations
ASTM E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method