ASTM D4691
Standard Practice for Measuring Elements in Water by Flame Atomic Absorption Spectrophotometry
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About This Item
ASTM D4691 is a technical standard that addresses measuring elements in water by flame atomic absorption spectrophotometry. It is used as a reference for consistent analytical work where elemental concentrations in water must be determined with a recognized laboratory method. By defining a structured practice, the standard helps support reliable results, comparable testing, and better decision-making in water analysis. For laboratories and quality programs, ASTM D4691 provides a clear framework for applying this instrumental technique.
What is ASTM D4691?
This ASTM standard is a practice for measuring elements in water using flame atomic absorption spectrophotometry, a common analytical approach in laboratory testing. The official standard title indicates that it is focused on the method itself rather than on a single element or product type. As a result, ASTM D4691 is generally used to guide how elemental measurements are carried out, supporting repeatable procedures and consistent interpretation of results across testing environments.
Where is ASTM D4691 used?
ASTM D4691 is commonly used in laboratories that analyze water samples for elemental content. Its application is relevant wherever water testing requires flame atomic absorption spectrophotometry and a standardized practice for measurement. This may include routine analytical workflows, environmental monitoring programs, or quality-control testing of water samples. The standard is most useful when a lab needs a recognized method reference to support dependable measurements and consistent reporting.
Why is ASTM D4691 important?
This standard matters because elemental measurements in water depend on consistent technique and well-defined practice. ASTM D4691 can help laboratories improve comparability between tests, support compliance-oriented reporting, and reduce variation in analytical results. For organizations that rely on water data for quality control, evaluation, or documentation, using a recognized ASTM standard helps strengthen confidence in the method and the results it produces.
- Flame atomic absorption spectrophotometry
- Element measurement in water
- Laboratory testing practice
- Consistent analytical workflow
- Reference for water analysis
- Publication Date: 2025-07-24
- Publisher: ASTM
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