Heat Flow Meter
Q: | What types of products can be tested on a heat flow meter?
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A: | The heat flow meter is typically used to determine the thermal conductivity, thermal conductance, and thermal resistance of homogeneous materials.
ATI’s heat flow meter has been specially designed to enable testing of insulated glass units as well, enabling determination of glazing U-Factors and CRF values.
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Q: | What size specimens can be tested?
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A: | Architectural Testing operates two proprietary heat flow meters, one 12” x 12” and one 24” x 24”. Specimens as thick as 8” can be tested in the larger meter.
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Q: | What test conditions can be utilized?
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A: | Architectural Testing can test at various mean temperatures, ranging from 35F (0F/70F) to 110F (85F/135F) The meter can also test products in any orientation from horizontal to vertical.
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Q: | What specifications are used for heat flow meter testing?
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A: | Architectural Testing tests using the ASTM C518 test standard. We can also test in accordance with NFRC 101, which is required to use new materials in NFRC simulations. We also utilize the AAMA 1505 procedure for IG unit testing, as well as proprietary ATI methodologies for specialized tests.
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Q: | How are products tested?
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A: | The test entails installing a specimen between a hot plate and a cold plate, which are held at the specified temperatures. The surface of the specimen must be smooth and flat to ensure proper contact with the plates. Following a period of stabilization, a steady-state heat flux is established through the specimen and measured to provide results.
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