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2. Moisture vapor transmission rate - Wikipedia

   en.wikipedia.org/wiki/Moisture_vapor...

   Moisture vapor transmission rate (MVTR), also water vapor transmission rate (WVTR), is a measure of the passage of water vapor through a substance. It is a measure of the permeability for vapor barriers. There are many industries where moisture control is critical.

3. Moisture sensitivity level - Wikipedia

   en.wikipedia.org/wiki/Moisture_sensitivity_level

   Moisture sensitive devices are packaged in a moisture barrier antistatic bag with a desiccant and a moisture indicator card which is sealed. Moisture sensitivity levels are specified in technical standard IPC / JEDEC Moisture/reflow Sensitivity Classification for Nonhermetic Surface-Mount Devices . [ 1 ]

4. Food packaging - Wikipedia

   en.wikipedia.org/wiki/Food_packaging

   Concurrently to the oxygen barrier property, the permeability of water vapor through a food packaging system should be minimized to effectively prevent physical and chemical changes connected to an excessive moisture content. [52] The moisture barrier properties of a material can be assessed by measuring the water vapor transmission rate (WVTR ...

5. Package testing - Wikipedia

   en.wikipedia.org/wiki/Package_testing

   When a final package design is complete, the specifications for the component materials needs to be communicated to suppliers. Packaging materials testing is often needed to identify the critical material characteristics and engineering tolerances. These are used to prepare and enforce specifications.

6. Humidity indicator card - Wikipedia

   en.wikipedia.org/wiki/Humidity_indicator_card

   The previous United States Military Specification Mil-I-8835A [permanent dead link ‍] was the governing specification for a humidity indicator card. The humidity indicator card is also specified for use in J-STD-033, which is the standard for handling, packing, shipping and use of moisture/reflow sensitive surface-mount devices.

7. Vapor barrier - Wikipedia

   en.wikipedia.org/wiki/Vapor_barrier

   A vapor barrier on the warm side of the envelope must be combined with a venting path on the cold side of the insulation. This is because no vapor barrier is perfect, and because water may get into the structure, typically from rain. In general, the better the vapor barrier and the drier the conditions, the less venting is required. [7]

8. Polychlorotrifluoroethylene - Wikipedia

   en.wikipedia.org/wiki/Polychlorotrifluoroethylene

   PCTFE films are used as a protective layer against moisture. These include: moisture barrier in pharmaceutical blister packaging, water-vapour barrier for protecting phosphor coatings in electroluminescent lamps (the phosphor chemicals are sensitive to moisture), protection of liquid-crystal display (LCD) panels, which are sensitive to moisture,

9. Housewrap - Wikipedia

   en.wikipedia.org/wiki/Housewrap

   Housewrap functions as a weather-resistant barrier, preventing rain or other forms of moisture from getting into the wall assembly while allowing water vapor to pass to the exterior. If moisture from either direction is allowed to build up within stud or cavity walls, mold and rot can set in and fiberglass or cellulose insulation will lose its ...