ASTM D5259
Standard Test Method for Isolation and Enumeration of Enterococci from Water by the Membrane Filter Procedure
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About This Item
ASTM D5259 is the ASTM standard titled Standard Test Method for Isolation and Enumeration of Enterococci from Water by the Membrane Filter Procedure. It provides a controlled approach for detecting and counting enterococci in water samples, supporting consistent microbiological testing and result interpretation. This matters for laboratories and water quality programs that need a repeatable method for measuring indicator organisms with a membrane filtration workflow.
ASTM D5259 standard overview
The standard focuses on isolating and enumerating enterococci from water using a membrane filter procedure. In practical terms, it helps define how a sample is processed, filtered, and evaluated so results are comparable across testing programs. ASTM D5259 is commonly used as a technical reference for laboratory methods where consistent microbiological measurement is important. Its value lies in providing a standardized test method that supports reliable water analysis and documented quality control practices.
Where is ASTM D5259 used?
This standard is typically used in laboratories that test water for enterococci using membrane filtration equipment and related microbiological procedures. It may be applied in routine water monitoring, compliance-oriented testing, and other workflows where counting enterococci is part of the analysis. ASTM D5259 is especially relevant when a lab needs a recognized method for handling samples, filtering water, and reporting results in a consistent way.
Practical importance of ASTM D5259
ASTM D5259 supports dependable testing by giving laboratories a common method for isolation and enumeration. That consistency can help reduce variation between operators, instruments, and test runs, which is important for quality control and procurement decisions. It also helps organizations document that a recognized ASTM standard was used, which can be useful for compliance reviews, method selection, and general risk reduction in water testing programs.
- Membrane filter procedure
- Enterococci isolation
- Enumeration of water samples
- Laboratory test method consistency
- Water quality analysis reference
- Publication Date: 2024-04-09
- Publisher: ASTM
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