ASTM D932-85(2002)
Standard Test Method for Iron Bacteria in Water and Water-Formed Deposits

Standard No.

ASTM D932-85(2002)

Release Date

1985

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D932-85(2009)

Latest

ASTM D932-20

Scope

Iron bacteria is a general classification for microorganisms that utilize ferrous iron as a source of energy and are characterized by the deposition of ferric hydroxide in their mucilaginous sheaths. The process is continuous with these growths, and over a period of time large accumulations of slimey brown deposits can occur. Iron bacteria may clog water lines, reduce heat transfer, and cause staining; objectionable odors may arise following death of the bacteria. The organic matter in the water is consequently increased, and this in turn favors the multiplication of other bacteria.

1.1 This test method covers the determination of iron bacteria by examination under the microscope. The method provides for the identification of the following genera of bacteria found in water and water-formed deposits: Siderocapsa, Gallionella (Dioymohelix), Sphaerotilus, Crenothrix, Leptothrix, and Clonothrix.

1.2 This standard does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM D932-85(2002) Referenced Document

• ASTM D1129 Standard Terminology Relating to Water*， 1999-04-19 Update
• ASTM D1193 Standard Specification for Reagent Water*， 1999-04-19 Update
• ASTM D3370 Standard Practices for Sampling Water from Closed Conduits*， 1995-09-10 Update
• ASTM D887 Standard Practices for Sampling Water-Formed Deposits

ASTM D932-85(2002) history

• 2020 ASTM D932-20 Standard Practice for Filamentous Iron Bacteria in Water and Water-Formed Deposits
• 2015 ASTM D932-15 Standard Practice for Filamentous Iron Bacteria in Water and Water-Formed Deposits
• 1970 ASTM D932-89(2007) Standard Test Method for Iron Bacteria in Water and Water-Formed Deposits
• 1985 ASTM D932-85(2009) Standard Test Method for Iron Bacteria in Water and Water-Formed Deposits
• 1985 ASTM D932-85(2002) Standard Test Method for Iron Bacteria in Water and Water-Formed Deposits
• 1985 ASTM D932-85(1997) Standard Test Method for Iron Bacteria in Water and Water-Formed Deposits