5 Questions
What is the definition of D-value?
The D-value is defined as the time taken at fixed temperature or the radiation dose required to achieve 90% reduction in viable cells.
What does the D-value assume?
The D-value assumes a linear relation between surviving fraction and time or radiation dose.
How does the D-value change with temperature?
The D-value decreases at higher temperatures.
What does the Z-value refer to?
The Z-value refers to a value for heat treatment only.
What does a D-value measure?
A D-value measures the degree of resistance of an organism to a sterilizing agent.
Test your knowledge on the expression of resistance and the calculation of the D-value with this informative quiz. Learn about the degree of resistance of organisms to sterilizing agents and how the D-value is measured.
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