ASTM D3859 is the ASTM standard for determining selenium in water, providing a technical framework for measuring this element in water samples. The Standard Test Methods for Selenium in Water is important for laboratories and organizations that need consistent analytical results for monitoring, compliance, and quality control. By defining a recognized test approach, it helps support more reliable comparison of data across different water testing programs and reporting needs.

Overview of ASTM D3859

The ASTM standard titled Standard Test Methods for Selenium in Water addresses laboratory testing focused on selenium measurement in water. It is commonly used as a technical reference when a repeatable method is needed for analytical work involving water samples. ASTM D3859 helps define the test approach in a way that supports consistency, making it useful for routine laboratory practice, method selection, and documented evaluation of selenium levels in water.

Common use cases of ASTM D3859

This standard is commonly used in water testing laboratories, environmental monitoring programs, and quality assurance workflows where selenium measurement is required. ASTM D3859 may support analysis of drinking water, wastewater, surface water, or other water samples when selenium determination is part of the testing plan. It is also useful for laboratories that need a recognized ASTM reference for method selection, sample reporting, and verification of analytical performance.

Benefits of using ASTM D3859

Using ASTM D3859 can help improve consistency in selenium testing by giving laboratories a recognized procedure to follow. That can support more dependable results, clearer procurement decisions, and better alignment with internal or external testing requirements. For organizations managing water quality data, the standard may also reduce ambiguity in method selection and help strengthen quality control, documentation, and comparison of results over time.

• Selenium testing for water samples
• Laboratory method reference
• Quality control and data consistency
• Technical support for reporting and compliance