Plastic Industry Terms
There are 412 entries in this glossary.
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| Term | Definition |
|---|---|
| Water Vapor Transmission |
The amount of water vapor passing through a given area and thickness of a plastic sheet or film in a given time, when the sheet or film is maintained at a constant temperature and when its faces are exposed to certain different relative humidities. The result is usually expressed as grams per 24 hours per square meter. |