ASTM Standards. ASTM E ASTM E – Standard Test Method for Water Vapor Transmission Rate of Sheet Materials Using Dynamic Relative Humidity. ASTM has approved two test methods to track water vapor transmission from materials: ASTM E96 – Water Vapor. Transmission of Materials. Purchase your copy of ASTM E – 13 as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards available.

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Work Item s – proposed revisions of this standard.

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This test method is unique in that it closely duplicates typical product storage where a transfer of moisture from a package into the environment is allowed to proceed without constantly sweeping the environmental side with dry gas.

Asm do you ship the products? Calibration procedures can compensate for the leakage rate if so stated. Generate a constant humidity difference between two sides; water vapor permeates through specimen and measure weight changes in different time to obtain the water vapor transmission rate. Link to Active This link will always route to the current Active version of the standard. High in accuracy, repeatability and reliability 4. Broad and precise temperature and humidity control function 3.

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Link to Active This link will always route to the current Active version of the standard. Five working days after we received your payment or order confirmed. E938 Version s – view previous versions of standard.

Films Including plastic films, plastic composite films, paper-plastic composite films, geomembranes, coextruded films, aluminized films, aluminum foils, aluminum foil composite films and many other film materials. Aseptic Wound Protecting Films and Face S398 Including aseptic wound protecting films, face masks and protective clothing materials.

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WVTR Water Vapor Transmission Rate Analyzer(ASTM E398)

Typical questions asked about products Does this product support customization? It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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A reasonable value may be approximately 0. You Might Also Like. Labthink provides excellent testing equipments and services asym Labs, quality and safety control of polymer materials, such as flexible packaging, pharmaceuticals, foodstuff, cosmetics packaging, printing, adhesive, automotive, petroleum chemistry, environment, biology, new energy, construction, astronautics and electronics.

Labthink is devoted to share excellent quality testing and control techniques with global clients and is known for wide awtm of international testing standards. Get Latest Price Min. World famous e38 components. Direct correlation of values obtained under different conditions of test temperature and relative humidity will be valid provided the barrier material under test does not undergo changes in solid state such as a crystalline transition or melting point at or between the conditions of test.

Textiles and Nonwovens Including textiles and non-woven materials. This test asym is unique in that it closely duplicates typical product storage where a transfer of moisture from a package into the environment is allowed to proceed without constantly sweeping the environmental side with dry gas.

This limit can be checked for each instrument with an impervious specimen such as aluminum foil.

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