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9221 Multiple-Tube Fermentation Technique for Members of the Coliform Group (2006)

9221 Multiple-Tube Fermentation Technique for Members of the Coliform Group (2006)

Approved by SM Committee: 2006

[R] - Revised
[N] - New Methods

This product has been archived, and is no longer available for purchase.

Description

The standard test for the coliform group may be carried out either by the multiple-tube fermentation technique (through the presumptive-confirmed phases or completed test) described in this section or by the membrane filter technique (9222). Guidelines are given for both drinking water and non-drinking water samples. The standard total coliform fermentation technique is given in 9221B. New tables and instructions to determine the most probable number (MPN) values for coliform estimation are found in 9221C. In addition, expanded guidelines are provided in 9221C regarding the selection of appropriate dilutions. The presence-absence coliform test is described in 9221D and the thermotolerant coliform procedure is described in 9221E. In addition, 9221F covers Escherichia coli and includes a proposed new test using the glutamate decarboxylase (GAD) enzyme. Sections 9221E and F have been revised and expanded, and a new section, 9221G, has been added that contains other E. coli procedures.

Methods

[E] [R] [N] Product
  [R]    A. Introduction
  [R]    B. Standard Total Coliform Fermentation Technique
  [R]    C. Estimation of Bacterial Density
  [R]    D. Presence-Absence (P-A) Coliform Test
  [R]    E. Fecal Coliform Procedures
  [R]    F. Escherichia coli Procedure Using Fluorogenic Substrate
    [N]  G. Other Escherichia coli Procedures (Proposed)

Companion Products

[E] [R] [N] Product Price  
[E]     9020 Quality Assurance/Quality Control (1997) $0.00
[E] [R]   9215 Heterotrophic Plate Count (2000) $69.00
[E] [R]   9222 Membrane Filter Technique for Members of the Coliform Group $69.00