Laboratory fume hoods: Performance (NT VVS 095)

  • Report #: NT VVS 095
  • Approved: January 1993
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  A method is described for testing laboratory fume hoods (see 4, Definitions) by measuring pressure drop, noise level, face velocity and the escape concentration of tracer gas. The Escape Safety Parameter (E) which is calculated from the measurement results indicates how well the operator is protected from exposure to dangerous gases in the hood.  
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