water vapor transmission

См. также в других словарях:

• Moisture vapor transmission rate — (MVTR), also water vapor transmission rate (WVTR), is a measure of the passage of water vapor through a substance. There are many industries where moisture control is critical. Moisture sensitive foods and pharmeceuticals are put in packaging… …   Wikipedia

• Water absorption — is a phenomenon in the transmission of electromagnetic radiation through a medium containing water molecules. Water molecules are excited by radiation at certain wavelengths and tend to selectively absorb portions of the spectrum while allowing… …   Wikipedia

• Vapor barrier — 6 mil Polyethylene plastic sheet as vapor barrier between insulation and gypsum board …   Wikipedia

• Vapor barrier —   A material with a permeance of one perm or less which provides resistance to the transmission of water vapor. [See California Code of Regulations, Title 24, Section 2 5302] …   Energy terms

• Microwave transmission — The atmospheric attenuation of microwaves in dry air with a precipitable water vapor level of 0.001 mm. The downward spikes in the graph correspond to frequencies at which microwaves are absorbed more strongly, such as by oxygen molecules… …   Wikipedia

• Mercury-vapor lamp — Mercury Lamp redirects here. For the character in the Rozen Maiden anime and manga, see Characters of Rozen Maiden. A 175 watt mercury vapor yard light approximately 15 seconds after starting …   Wikipedia

• WVTR — Water Vapor Transmission Rate (Academic & Science » Ocean Science) Water Vapor Transmission Rate (Academic & Science » Meteorology) Water Vapor Transmission Rate (Academic & Science » Chemistry) …   Abbreviations dictionary

• WVTRA — Water Vapor Transmission Rate Analyzer (Academic & Science » Chemistry) Water Vapor Transmission Rate Analyzer (Academic & Science » Meteorology) Water Vapor Transmission Rate Analyzer (Academic & Science » Ocean Science) …   Abbreviations dictionary

• WVTRs — water vapor transmission rates …   Medical dictionary

• WVTRs — • water vapor transmission rates …   Dictionary of medical acronyms & abbreviations

• Permeation — Permeation, in physics and engineering, is the penetration of a permeate (such as a liquid, gas, or vapor) through a solid, and is related to a material s intrinsic permeability. Permeability is tested by permeation measurement, for example by a… …   Wikipedia