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.

Question

Quizplus · Accepted Answer

The MPN procedure is a series of tests that help to estimate the number of coliforms in a water sample. This method involves presumptive tests (to detect the presence of coliforms), confirmatory tests (to confirm that the organisms detected are indeed coliforms), and completed tests (to obtain an estimate of coliform numbers in the water sample). The membrane filter method is a separate procedure that involves passing a water sample through a filter to concentrate bacteria, which can then be counted. The standard plate count is a method for enumerating viable bacteria in a sample, but it is not specific for coliforms. The coliform determination test is not a specific method, but rather a general term used to describe methods for detecting and counting coliform bacteria.

Analysis of a Water Sample by a Series of Presumptive