The climatic chamber tests are used to test the resistance and tightness of different materials and products to the most varied atmospheric factors.
And what is one of the materials most exposed to atmospheric factors that we use every day in our daily life?
Glass, whether it is the windows of buildings and our homes or the windows of cars, are our most fragile and important defence against the elements of the outside world.
In this article, we will analyze in detail which tests they must pass to demonstrate the reliability we ask of them.
The Window Chamber Test: General Traits
As we have said, the glass is directly exposed to all atmospheric factors that occur outside. The climatic test on glass in a climatic chamber must therefore guarantee resistance to a wide range of occurrences, let's see which ones:
- Sudden or cyclic changes in temperature
- Sudden or cyclical changes in humidity
- Sudden or cyclical changes in pressure
- Rain and other precipitations
- Thermal insulation factor
- Freezing and thawing
The parameters and tests that the glass must meet vary according to the climatic zone and according to the use of the glass itself. For this reason, while sharing some general procedures, the windows of buildings and the windows of vehicles respond to different needs with specific tests that should be addressed separately.
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The Climate Test on Windows, French Doors and Skylights
The climatic test on windows, French doors and skylights can be carried out during the production phase or "in the field", ie when the glass has already been installed in the building.
The latter case follows the ASTM E1105-00 standard.
However, if we are interested in the climatic chambers, and therefore the laboratory test, the main standards to follow are ASTM E547-00 (2016) and ASTM E331-00 (2016); the first regulates the procedures for performing variable cycles of static air pressure, the second tests the materials with a uniform static air pressure.
The ANSI / NFRC 100 is also very important, which outlines the procedures to be followed to calculate the thermal insulation factor of the windows, impacting the value of the entire apartment or building, especially with regard to its energy class.
The Climate Test on Windscreens and Windows of Vehicles
The climate test on vehicles is generally performed on the vehicle already assembled and the test on the windows and windshield is no exception.
Windows and windshields are then put to the test in their final context and are subjected to the classic climatic tests of the automotive sector around which you can read our article.
In particular, however, windows and windscreens must pass a test dedicated to them that separates them from most of the glass used in buildings: that of thawing and defrosting.
The test is regulated by ISO 3468: 2014 and verifies the efficiency of the defrosting and defrosting systems of the windscreen of the vehicle in question, reproducing the typical situations it will face in the winter months.
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The FDM Chamber for the Climate Test on Glasses
The FDM Environmental Chamber is the ideal tool to perform all extreme climate tests, including those of glass, windows and cars windows.
Its technical characteristics make it able to reproduce all the climatic conditions which the glass of buildings or vehicles will have to face during their life cycle and it can be built in different sizes to accommodate all types of materials and products.
For special needs, please do not hesitate to contact us.
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