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Subject: |
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| Acoustic Ceiling Panels |
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Content: |
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Acoustic ceiling panels are required. These must have a fire performance up to CE classification A2-s1, d0. The material must have a ligth reflectance of 90%, a noise reduction coefficient not less than 0.65 and a room to room sound attenuation of not less than 30db, white, with a weight not exceeding 6kg/m2 and relative resitance to humidity of 99% at a temperature range of 12 to 35 degrees celsius.
Expire Date : 2007-10-13 |
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| 2014/8/13 |
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