Filtration in Microbiology
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Questions and Answers

What is the average pore diameter of membrane filters?

  • 0.12µ
  • 0.3µ
  • 0.15µ
  • 0.22µ (correct)
  • Which type of filter removes 99.97% of particles with a size of 0.3µm?

  • Sintered glass filter
  • HEPA filter (correct)
  • Asbestos filter
  • ULPA filter
  • Which material is NOT used to make membrane filters?

  • Polyvinylidene fluoride
  • Cellulose acetate
  • Cellulose nitrate
  • Asbestos (correct)
  • What does ULPA stand for in the context of air filters?

    <p>Ultra-low particulate/penetration air</p> Signup and view all the answers

    Which type of filter is most suitable for studying the size of viruses?

    <p>ULPA filters</p> Signup and view all the answers

    Which material is NOT used to make membrane filters for reducing the microbial population in solutions?

    <p>Diatomaceous earth</p> Signup and view all the answers

    Which type of filter is capable of removing at least 99.999% of dust, pollen, mold, and bacteria from the air?

    <p>HEPA filters</p> Signup and view all the answers

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