Good to Great: Why Some Companies Make the Leap... and Others Don't The New Retirement: The Ultimate Guide to the Rest of Your Life Angels & Demons The Time Traveler's Wife (Harvest Book) DisneyWar The Five People You Meet in Heaven Hot Commodities : How Anyone Can Invest Profitably in the World's Best Market Secret Life of Bees, The Deception Point

• Calculating Humidity Properties.
• Calculating Humidity Properties .
• Relative humidity from vapor pressure .
• Specific humidity .
• Absolute humidity .
• Calculating With Humidity Properties .
• Relative Humidity From Vapor Pressure.
• Finds the relative humidity from the actual and saturated vapor pressures. ...
• Returns the relative humidity as a decimal. ...
• Specific Humidity.
• Calculates the specific humidity from the actual vapor pressure and barometric pressure. ...
• Returns the specific humidity in grams per kilogram. ...
• Absolute Humidity.
• Calculates absolute humidity from the actual vapor pressure and temperature. ...
• Returns the absolute humidity in grams per cubed meter. ...

• Atmospheric Humidity  .
•      The term humidity is generic for water vapor content of the air. ...
•      Atmospheric Humidity .
•      One of the more common ways of expressing humidity is to consider the contribution of water vapor towards the total atmospheric pressure. ...
• Vapor pressure is a good measure of humidity      Vapor pressure is a very direct measure of the water vapor content of the air. ...
• Figure 3   Saturation vapor pressure vs temperature Relative Humidity .
•      A common variable used to express humidity, is that of relative humidity or RH. ...
• Relative humidity tells us only the ratio of the amount of water vapor that is actually present over of the maximum amount that could exist at that temperature. ...
• As a result, relative humidity is an ambiguous number. It must be interpreted carefully, and is usually not a particularly useful measure of humidity. ...
•      Avery useful measure of humidity is the dewpoint temperature or Td. ...
• Dewpoint is a measure of humidity .
• This is an excellent measure of humidity. ...
•      We can now combine the concepts of radiation, heat transfer and humidity to explain dew and frost. ...
• So the air is super-saturated, and apparent relative humidity is greater than 100%. ...
• So relative humidity (defined using es for flat surface) .

• Humidity Club .
• Metrology Clubs > Humidity Club.
• An awareness club for all who have an interest in humidity measurement. ...
• The group meets once a year to hear progress reports on NPL humidity projects, and to discuss how the UK National Measurement System can best meet industry's needs in the field of humidity measurement.
• The meeting also provides an opportunity for members to participate in technical discussion, education and presentation of new developments in humidity metrology.
• In addition the NPL's advisory service on humidity metrology provides support for members during the year.
• Please note that the Humidity Club and T²PAC Club have now amalgamated to form the TMAN (Thermal Measurement Awareness Network) Club.

• STATIC ELECTRICITY | Van de Graaffs | SCIENCE HOBBYIST VDG Hints: Solving Humidity Problems.
• Humidity's Physical Effects .
• Always carry an electric blow-dryer with you when doing electrostatics demos in high-humidity locations. ...
• It is not impossible to perform electrostatic demonstrations in a very high humidity environment. ...
• If you can obtain a couple of pounds of color-change silica gel dessicant, placing the stuff in your box will lower the air's humidity and act to dry your equipment. ...
• Sometimes the humidity is so high that no amount of debugging can fix your demo. ...
• Humidity's Effects.
• Why does high humidity affect electrostatic devices? Simple: it makes surfaces conductive enough to "short out" the devices. Under high-humidity conditions, insulating surfaces can behave as a dead short, almost like metal, even though their resistance remains too high to easily measure. ...
• I encountered one instance where the humidity was TOO LOW for a demonstration: I opened a fresh bag of rice-crispy cereal, intending to produce a big messy "Volta's Hailstorm" effect using a VandeGraaff generator and a pie pan, filling the pan with cereal. ...
• Another place where humidity can be too LOW: when performing the VDG hair-raise demo, sometimes the VDG generator works fine, but long hair simply won't rise. ...
• Humidity hints at U. ...

• Alaska Climatology - Humidity .
• Humidity.
• Monthly maximum, minimum, and mean humidity data for the period 1971 - 2000 are available for locations across Alaska.
• Early morning (3:00 am) and afternoon (3:00 pm) relative humidity data are also available.
• Humidity - a measure of the water vapor content of the air.
• Relative humidity - the ratio of the actual vapor pressure of the air to the saturation vapor pressure for a given air temperature.

• environmental chamber controllers for temperature, humidity and altitude  applications.

• Home > Humidity Control.
• Humidity Control.
• Humidity control is very important to your health for a couple of reasons. Mold, which thrives in high humidity, is dormant or dies when the humidity is low. Dust mites also die when the humidity stays below 50%. But remember, the dust mites in your bed rely on you for their source of humidity, so always use mattress covers, pillow covers and box spring encasings.
• On the other hand, below 30% relative humidity, people can be uncomfortable and can suffer from dry mucus membranes which can lead to nosebleeds and infections. Low humidity can aggravate the symptoms of asthma and high humidity at high temperatures can sometimes lead to heat exhaustion or heat stroke. Control humidity with proper ventilation and air conditioners, humidifiers or dehumidifiers. ...
• Humidity Control  |  Mold Control  |  Water Filtration  |  Air Filtration  |  Air Cleaners and Purifiers .

• humidity.
• Relative humidity.
• Directory > General Reference > Dictionary > humidity Encyclopedia.
• humidity, moisture content of the atmosphere, a primary element of climate. Humidity measurements include absolute humidity, the mass of water vapor per unit volume of natural air; relative humidity (usually meant when the term humidity alone is used), the ratio of the actual water-vapor content of the air to its total capacity at the given temperature; specific humidity, the mass of water vapor per unit mass of natural air; and the mixing ratio, the mass of water vapor per unit mass of dry air. Absolute humidity finds greatest application in ventilation and air-conditioning problems. Humidity is measured by means of a hygrometer. ... Thus cold air, while its moisture content is necessarily quite low (low absolute humidity), may be almost saturated with respect to the maximum amount of water vapor it is capable of holding (high relative humidity). Cold air with high relative humidity â œfeelsâ � colder than dry air of the same temperature because high humidity in cold weather increases the conduction of heat from the body. Conversely, hot air attended by high relative humidity â œfeelsâ � warmer than it actually is because of an increased conduction of heat to the body combined with a lessening of the cooling effect afforded by evaporation. On the other hand, a low relative humidity â œmodifiesâ � the effect of temperature extremes on the human body. Humidity decreases with altitude. Proximity to large bodies of water and the prevalence of moisture-bearing winds favor high humidity. A temperature-humidity index has been developed by the U.
• Directory > General Reference > Encyclopedia > humidity Science.
• humidity .

• SP-2000 Humidity Logger Datasheet.
• Spectrum 2000 Humidity Logger Specifications .
• Networked Temperature & Humidity Monitoring Systems .
• Relative Humidity & Temperature.
• Portable self-contained relative humidity and temperature data loggers with internal sensors, memory and ten-year battery .
• Data loggers record relative humidity (RH) and temperature without wires, power cords or connections .
• Spectrum 2000 precision humidity and temperature data loggers are compact, powerful and easy-to-use recorders for monitoring critical humidity-sensitive products and processes.
• Palm-sized and easy-to-use alternatives for RH chart recorders and bulky data acquisition systems, Spectrum 2000 humidity data loggers are completely self-contained and battery-operated. Simply place them where you need to measure humidity and temperature and they will record accurate time-based readings up to six times per minute - covering periods of up to several years in duration. ...
• Each data logger features integral precision relative humidity and temperature sensors with long-term high-accuracy measurement performance, sensitivity, and responsiveness. ... Plus, the rugged thermoset polymer-based capacitive relative humidity sensor offers outstanding resistance to air-borne contaminants and condensation, delivering exceptional in-calibration service and reliability.
• Spectrum 2000 precision humidity and temperature data loggers are ideal for demanding industry applications from pharmaceutical validations to monitoring rough in-field product shipments. ...
• Perfect for verifying environmental conditions in labs, clean rooms, stability chambers, computer and equipment rooms and storage facilities, the Spectrum 2000 humidity data logger is used worldwide by industry professionals for ensuring adherence to industry regulations and ISO 9000 quality standards.
• Spectrum 2000 data loggers interface to any PC (through any serial or USB port) with Spectrum Software, a powerful windows-based package for configuring, downloading, displaying, analyzing and reporting collected humidity and temperature information. With Spectrum Software you can display humidity data in graphical or tabular form or export results for use in other programs. ...
• For more information on complete temperature and humidity monitoring systems using Veriteq SP-2000 data loggers, refer to our Temperature & Humidity Monitoring System page.

• Bry-Air's desiccant dehumidification systems provide precise humidity and temperature control to industrial, commercial, hospital, school and residential applications. We specialize in indoor relative humidity control systems, moisture prevention, desiccant drying systems, mold and mildew protection, fresh air treatment systems and temperature control systems for industrial, commercial, HVAC and home. ...

• Humidity.
• The humidity of a packet of air is usually denoted by the mass of vapour contained within it, or the pressure that the water vapour exerts. This is the absolute humidity of air. Relative humidity is measured by comparing the actual mass of vapour in the air to the mass of vapour in saturated air at the same temperature. ... 7 g/m3 of water vapour, then the relative humidity is 50%.
• When unsaturated air is cooled, relative humidity increases. ... Relative humidity is 100%. ... The dew point, and other measures of humidity can be calculated from readings taken by a hygrometer. ... The difference between wet and dry bulb temperatures is used to calculate the various measures of humidity.
• Absolute humidity.
• • Relative Humidity.
• • Atmospheric Humidity.
• • Humidity/Dew Point .
• • Humidity.

• DESCRIPTION: TEGAM's Humitran-C Series offers a total temperature and humidity monitoring solution for virtually any application. Each temperature/ humidity controller includes an RH & temperature duct probe, which can be placed up to thousands of feet from the controller. The C series controllers have dual set points with recorder and relay outputs for interfacing to air temperature & humidity devices. ...
• FEATURES: 3% to 95% RH range @ ±2% accuracy, 1% humidity resolution, .
• SEE ALSO: HUMIDITY AND TEMPERATURE TRANSMITTERS.
• Humitran-Model RHS-1 Humidity Controller & Probe Sets.
• DESCRIPTION: Model RHS-1 Relative Humidity Set point controllers are simple to install and offer dependable performance for monitoring relative humidity. Each set includes a dial-type set point controller and a stainless steel humidity probe. ...
• APPLICATIONS: general purpose humidity control, humidity chambers, acceptance testing, process control, etc.
• Relative Humidity Calibration Kit.
• SEE ALSO: HUMIDITY AND TEMPERATURE TRANSMITTERS.
• HUMIDITY AND TEMPERATURE TRANSMITTERS.

Do you have a great site about Humidity? Is your Humidity site listed here? Would you like a prefered placement of your site in this directory?

It's easy! First place, the HTML from the box below on your page that you would like listed in this directory.

Then use our link submission request with your name, your contact information, and the URL of your site that has a link to this directory. After we verify your link to us, we'll make sure your site stays in our directory, and we'll give it prefered placement here also.

Here is how to make a simple text link to us. Just copy the code in this box to your website:

We can also develop a custom Guide To The Internet for your site. Please request your own custom Guide To The Internet.