ASTM D4994
Standard Practice for Recovery of Replicable Viruses from Municipal Wastewater Sludges
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About This Item
ASTM D4994 is the standard practice for recovering replicable viruses from municipal wastewater sludges, providing a technical basis for handling and evaluating sludge samples in a consistent way. It matters because reliable recovery methods help support comparison of results across testing programs, quality control efforts, and environmental assessments. By focusing on recoverable viruses in wastewater sludge, this ASTM standard helps users apply a repeatable approach to a complex material where sample handling can strongly affect outcomes.
Overview of ASTM D4994
ASTM D4994 addresses a practical laboratory and field-testing need related to municipal wastewater sludges: recovering replicable viruses in a manner that can be repeated and compared. The standard practice is useful when results depend on careful sample processing, controlled recovery steps, and consistent test conditions. As an ASTM standard, it supports a common technical framework for organizations that need to evaluate sludge samples with greater confidence and less variation between runs, laboratories, or projects.
Common use cases of ASTM D4994
This standard is commonly used in wastewater and environmental testing workflows where municipal sludge samples must be prepared for virus recovery analysis. It may support laboratory methods, monitoring programs, and technical evaluations tied to sludge handling or treatment studies. ASTM D4994 is especially relevant when a consistent practice is needed to process complex sludge matrices and obtain recoverable viral material for downstream assessment, reporting, or comparison within a controlled testing program.
Benefits of using ASTM D4994
Using ASTM D4994 can improve consistency in how replicable viruses are recovered from municipal wastewater sludges, which is important for dependable test results. It may help reduce variability, support method alignment across teams, and strengthen quality control in sample preparation and analysis. For organizations that rely on wastewater sludge testing, this ASTM standard can also aid procurement and compliance efforts by providing a recognized technical reference for a specific recovery practice.
- Municipal wastewater sludge sample handling
- Replicable virus recovery practice
- Laboratory method consistency
- Quality control and result comparison
- Technical reference for environmental testing
- Publication Date: 2024-11-07
- Publisher: ASTM
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