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The building materials industry also manages the moisture barrier properties in architectural components to ensure the correct moisture levels in the internal spaces of buildings. Optoelectronic devices based on organic material, generally named OLEDs , need an encapsulation with low values of WVTR to guarantee the same performances over the ...
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 ]
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]
Samples of the test packages are given to a prescribed population of children. With specified 50-child panels, a high percentage must be unable to open a test package within 5 minutes. [11] Adults are also tested for their ability to open a child-resistant package. Consumer packages are often evaluated by focus groups. People evaluate the ...
Barrier protection - A barrier from oxygen, water vapor, dust, etc., is often required. Permeation is a critical factor in design. Keeping the contents clean, fresh, and safe for the intended shelf life is a primary function. Modified atmospheres or controlled atmospheres are also maintained in some food packages.
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.
Moisture analysis covers a variety of methods for measuring the moisture content in solids, liquids, or gases. For example, moisture (usually measured as a percentage) is a common specification in commercial food production. [1] There are many applications where trace moisture measurements are necessary for manufacturing and process quality ...
High barrier packaging (including seals) is necessary but, by itself, is often not enough. Shelf life of a moisture-sensitive drug can be extended by means of desiccants. [ 11 ] Several types of dessicants are available; the type and quantity need to be matched to the particular drug and package.
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