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respirable fibers released during general maintenance activities that would require the disturbance/removal of the Cirrus® product?

April 26, 2017activities disturbance fibers maintenance released Removal require respirable

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respirable fibers released during general maintenance activities that would require the disturbance/removal of the Cirrus® product?

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Tests* were conducted to measure respirable fibers generated following the installation, removal/reinstallation of the Cirrus mineral fiber product. In all cases, the results of the monitoring** one hour, and 24 hours, after each activity did not detect the presence of respirable airborne fibers. **Large chamber protocol followed the guidelines of ASTM Standard D5116. The dynamic chamber was operated at one air change per hour and 23×C and 50% relative humidity. **Fiber counts were conducted in accordance with NIOSH Method 7400B.