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How To Use A Fume Hood National Laboratory Sales - NLS
WebFume Hood Control. Fume hoods are typically used in laboratories to collect and exhaust fumes. The cross-section of a hood in Figure 9-12 has a vertical sash which can be raised and lowered as necessary. The horizontal air velocity into the hood is, typically, maintained at a constant velocity of 80–100 fpm whatever the sash height. Webperchloric acid may not be used in standard fume hoods, which lack automatic wash down systems. Any exceptions to this should be approved by EH&S. 2. Use perchloric acid hoods exclusively for perchloratework. Never use organic materials in a hood designed specifically perchloric acid.for Perchlorates pinal federal county credit union
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