Analysis of a water sample by a series of presumptive, confirmatory, and completed tests that help establish an estimate of coliform numbers in the water is called
A)membrane filter method.
B)most probable number (MPN) procedure.
C)standard plate count.
D)coliform determination test.
E)None of the choices are correct.

Question

Quizplus · Accepted Answer

The most probable number (MPN) procedure includes a series of presumptive, confirmatory, and completed tests to estimate the number of coliforms in a water sample. The membrane filter method is a separate method that involves filtering a water sample through a membrane and then counting colonies on the membrane. The standard plate count is another method that counts the total number of bacteria in a water sample. The coliform determination test is not a specific method but rather a category of tests used to detect coliform bacteria. Therefore, the MPN procedure is the best choice for the given description.

Analysis of a Water Sample by a Series of Presumptive