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单词 fume cupboard
释义

Definition of fume cupboard in English:

fume cupboard

noun
British
  • A ventilated enclosure in a chemistry laboratory, in which harmful volatile chemicals can be used or kept.

    Example sentencesExamples
    • The fume cupboards can accommodate up to eight service outlets for gas, air, water and vacuum - four on each side.
    • In the laboratory it is only safely handled inside a fume cupboard.
    • This is possible only where each fume cupboard is connected to an individual fan system.
    • We now have a modern science laboratory with all the facilities including a fume cupboard and a gas supply.
    • The lipids were extracted with petroleum ether for 7 h, after which the fish were left for 2 h in a fume cupboard for the petroleum ether to evaporate.
    • The eggs were exposed to ether vapor for 10 min and left in the fume cupboard for 30 min.
    • The venting of offensive chemicals into the atmosphere via fume cupboards is no longer allowed.
    • In many cases, good performance of the fume cupboard correlates with a uniform face velocity.
    • The reaction was allowed to proceed for 30 min, after which the samples were dried in a fume cupboard for several hours.
    • Half power is used to keep sufficient ventilation in the lab when the fume cupboard is not in use.
    • Whenever possible, the fume cupboard sash should be kept in the lowered position.
    • The acid fume chamber has a standard length of 1.86 metres, but it is possible to extend it to 6 metres.
    • Anyone who uses the chemical is advised to do so in a fume cupboard.
    • There have also been several reports of old wooden fume cupboards exploding after the use of perchloric acid.
    • Fixed fume cupboards are inspected annually on a contract to ensure that they meet compliance regulations.
    • When the sash is in an open position, supply air enters the fume chamber through the sash opening.
    • A ‘cut out’ under the fume cupboard to get my chair under, or the use of a portable fume cupboard, would be perfectly adequate for me to use.
    • Design and construction upgrade of the fume cupboard is expected to be completed by 30th June 2007.
    • The key attribute of a fume cupboard is its ability to provide good containment of hazardous materials.
    • The installer must test for compliance and produce a commissioning report before the fume cupboard is put into service.
 
 
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更新时间:2024/12/22 18:19:11