跳至主要内容

Test Principle And method of Sweating Guarded Hotplate

Human body thermal radiation are sensible heat (hot) and the latent heat of evaporation (heat) in two ways, therefore, influence of clothing thermal comfort index is mainly clothing diathermy (thermal resistance) and clothing performance of moisture permeability (wet resistance). Due to the temperature gradient in layers of clothing heat resistance, known as thermal resistance, its physical meaning is both sides of the temperature difference and vertical through the clothing of the ratio of the heat flow per unit area, reflects the clothing insulation ability.

Test Principle of Thermal and moisture resistance tester :In a standard test environment, heat fixed aluminum or copper plates to keep the aluminum or copper plates at a fixed temperature to test the heating power.Similarly, a copper plate or an aluminum sheet covers the power of the same condition after testing the material, depending on the power difference between the two and the size of the test disk area.The thermal resistance or moisture resistance of the test sample can be calibrated.


Test Method of Sweating Guarded Hotplate:Thermal and moisture comfort is people in addition to the basic block body warm higher requirement for fabric from outside the thermal resistance and moisture resistance as a measure of the fabric is of great significance to the comfortable sex index thermal resistance to characterization of the heat transfer performance of the thermal resistance of fabric has better protective effect, we tend to choose summer wet resistance of the smaller clothes, the clothes wear, timely to human body moisture away from the sense that gives a person is dry.
-------------------------------------------------------------------
For more information about our testing instrument, please contact
·website:http://www.qinsun-lab.com/
· +86-21-6780 0179
· info@qinsun-lab.com
· or leave your comments below

评论

此博客中的热门博文

How To Process The Elmendorf Tear Strength Test

The Elmendorf tear tester has been developed specially for the paper industry and is outstanding for simplicity of operation and high measurement accuracy. The exchangeable pendulum is equipped with a pneumatic sample clamp. The initiation and return of the pendulum, as well as sample cutting is completely automatic. The device is operated via an integrated touch screen, where the test method can be selected, specific settings can be adjusted, and, after the measurement, results and statistics can be  displayed.Each pendulum is supplied with the appropriate control weight so that, with the help of the service program, it can easily be checked for functionality and balance. The Elmendorf tear test Procedure:     Cotton fabric was taken.     Warp and weft direction of the fabric was identified.     Two strips were cut from the fabric in both directions having dimensions of 100 x 63.5 mm.     The sample was then fixed in the jaws of the ...

Correct Use Of Color Assessment Cabinet

Observation Angle: The following points are all the facilities required for the Color Assessment Cabinet , and the viewing Angle will directly affect the evaluation results. According to international standards, there are only two observable angles that can be used. They are: A, zero light source and 45 degrees observation (0 °, 45 °), the light from zero (vertical) incident Angle on the sample, sample watchers from 45 degrees. B, light source and 45 ° inclined channel 45 degrees of light source, zero observation (0 °, 45 °), the layout must use specific 45 degrees of inclined (45 ° Fixed Angle table) making from 45 degrees of light source on the samples, sample watchers from zero (vertical). The location of the 45 ° light samples: Regardless of any of the above observation methods, it is important to note that the test sample is placed in the middle of the light box as far as possible to reduce the influence of the external light source. In addition, the most important thing...

3 main functional values of the Burning Manikin System

3 main functional values of the Burning Manikin System 1) Research on the heat transfer mechanism of individual soldier's flame retardant equipment By simulating the battlefield fire conditions of different intensities, the changes of human skin surface heat flow and skin temperature by burning dummies, a good human body-clothing-fire environment conditions are created, and the individual soldiers are flame retardant The study of equipment heat transfer mechanism provides an important research method. 2) Research and screening of flame retardant fabrics for individual soldier equipment Quantitatively test the flame retardant properties of different individual soldier equipment fabrics through the burning dummy system, guide the research on flame retardant fabrics, and screen out flame retardant fabrics with excellent performance. 3) Structure and style design of individual soldier's flame retardant protective equipment The structure and style of individual soldier's flame r...