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ASTM E96材料水蒸氣滲透性測試儀的應用范圍:
適用于塑料薄膜、復合膜等膜、醫療、建筑領域等多種材料的水蒸氣透過率的測定。通過對水蒸氣透過率的測定,達到控制與調節包裝材料等產品的技術指標。
ASTM E96材料水蒸氣滲透性測試儀測試原理:
采用透濕杯稱重法測試原理,在一定的溫度下,使試樣的兩側形成特定的濕度差,水蒸氣透過透濕杯中的試樣進入干燥的一側,通過測定透濕杯重量隨時間的變化量,求出試樣的水蒸氣透過率等參數。
ASTM E595除氣測試
ASTM E595 在真空環境中除氣作用引起的總質量損失和揮發物質冷凝量的測試方法
ASTM E595 Standard Test Method for Total Mass Loss and Collected Volatile Condensable Materials from Outgassing in a Vacuum Environment
ASTM E595除氣測試-測試方法
ASTM E595除氣測試方法包含使用篩選技術來確定的材料在真空狀態下的揮發性。需要測試兩個參數:總質量虧損(TML)和揮發物質冷凝量(CVCM)。另一個參數水汽量(WVR), 也可以在完成對TML和CVCM的測試后獲得。
ASTM E595 outgassing test, This test method covers a screening technique to determine volatile content of materials when exposed to a vacuum environment. Two parameters are measured: total mass loss (TML) and collected volatile condensable materials (CVCM). An additional parameter, the amount of water vapor regained (WVR), can also be obtained after completion of exposures and measurements required for TML and CVCM
ASTM E595除氣測試-測試范圍
各種各樣的有機分子,聚合物和無機材料都可以被測試。這些材料包含:聚合混合物,發泡材料,彈性體,薄膜,膠帶,絕緣體,收縮管,膠水,涂料,紡織面料,和輪滑油,這些材料可以在原始接受的狀態下測試,也可以通過多種方式固化后測試。
Many types of organic, polymeric, and inorganic materials can be tested by ASTM E595 outgassing test. These include polymer potting compounds,foams, elastomers, films, tapes, insulations, shrink tubings, adhesives, coatings, fabrics, tie cords, and lubricants. The materials may be tested in the “as-received” condition or prepared for test by various curing specifications.
ASTM E595除氣測試-測試項目和要求:
TML (total mass loss)總質量虧損,要求≤1%
CVCM (collected volatile condensable materials)揮發物質冷凝量, 要求≤0.1%
WVR (the amount of water vapor regained)水汽量
ASTM E595 除氣測試 outgassing test http://www.fire-test.com/teststandard/other/4083.html
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