ASTM D7708
Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks
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About This Item
ASTM D7708 is a test method for microscopical determination of the reflectance of vitrinite dispersed in sedimentary rocks. It provides a standardized way to measure an important optical property associated with organic matter in rock samples, helping users compare results more consistently across laboratories and projects. As an ASTM standard, it is commonly selected when reliable, repeatable reflectance data are needed for technical evaluation, documentation, or quality-focused workflows involving sedimentary materials.
Overview of ASTM D7708
The official title of ASTM D7708 shows that it focuses on microscopical measurement of vitrinite reflectance in sedimentary rocks. In practical terms, the standard supports a controlled laboratory approach for observing dispersed vitrinite and reporting its reflectance in a consistent manner. This makes it useful as a technical reference for users who need a recognized method rather than an ad hoc procedure. ASTM D7708 helps establish common expectations for testing, interpretation, and reporting.
Common use cases of ASTM D7708
ASTM D7708 is typically used in laboratory settings where sedimentary rock samples are examined under a microscope for reflectance measurement. It is relevant to workflows that require comparison of vitrinite reflectance results across multiple samples, preparation batches, or testing programs. The standard is also useful when a purchasing or project specification calls for a recognized ASTM method to support documentation and consistency in rock characterization.
Benefits of using ASTM D7708
Using ASTM D7708 can improve consistency in how reflectance measurements are obtained and reported, which supports more dependable technical decisions. A standardized method also helps reduce variability between operators and laboratories, making it easier to compare results during evaluation or quality control. For organizations that depend on defensible test data, ASTM D7708 offers a practical way to support compliance-minded workflows and reduce uncertainty in sedimentary rock analysis.
- Microscopical reflectance measurement
- Vitrinite dispersed in sedimentary rocks
- Standardized laboratory testing
- Comparable reporting and documentation
- ASTM-referenced technical evaluation
- Publication Date: 2023-10-03
- Publisher: ASTM
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