Understanding How Sterilization Is Quantified


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The amount of time that is necessary to kill all microbes in a certain sample at a specific temperature is known as (the):

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1. The number of minutes necessary to kill a population of microbes at 250*F or 121.1*C is known as (the):

2. The change in temperature necessary to change the D-value by a factor of 10 is known as (the):

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About This Quiz & Worksheet

This quiz and corresponding worksheet will help you gauge your knowledge of quantifying sterilization. Topics you'll need to know to pass the quiz include understanding what the thermal death time involves as well as knowing what the F-value means.

Quiz & Worksheet Goals

Use this printable worksheet and quiz to review:

  • Amount of time necessary to kill all microbes in a sample at a specific termperature
  • Characteristics of the F-value
  • Z-value properties
  • Features of the D-value
  • Sterilization practice problem

Skills Practiced

This worksheet and quiz will let you practice the following skills:

  • Interpreting information - verify you can read information regarding the characteristics of the F-value and interpret it correctly
  • Problem solving - use acquired knowledge to solve sterilization problems
  • Reading comprehension - ensure that you draw the most important information from the related quantifying sterilization lesson

Additional Learning

To learn more about how to properly kill a germ, review the corresponding lesson titled Understanding How Sterilization Is Quantified. This lesson will help you:

  • Describe what sterilization is
  • Understand the process to get rid of pathogens
  • Identify how long it takes to kill off a certain number of microbes
  • Explain how the D-value, Z-value and F-value factor into the equation
  • Know the method to apply the thermal death time towards unwanted bacteria