ASTM E1690
Standard Test Method for Determination of Ethanol Extractives in Biomass
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About This Item
ASTM E1690 is the ASTM standard for determining ethanol extractives in biomass, providing a consistent test method for measuring the portion of biomass that can be removed with ethanol. This matters for material evaluation, quality control, and comparison of biomass samples because extractives can influence test results, processing behavior, and reported composition. As a practical technical document, ASTM E1690 helps support more repeatable laboratory analysis and more dependable data when biomass materials are being assessed.
What is ASTM E1690?
ASTM E1690, Standard Test Method for Determination of Ethanol Extractives in Biomass, defines a laboratory approach for measuring ethanol-soluble extractives in biomass materials. The standard is intended to give users a controlled way to determine how much of a sample is removed by ethanol extraction, which can be important when characterizing biomass for analytical or processing purposes. By using a recognized ASTM standard, laboratories can improve consistency in testing and reporting across different samples and projects.
Where is ASTM E1690 used?
This standard is commonly used in biomass testing workflows where extractives content needs to be measured in a repeatable way. It may be applied in laboratories handling feedstocks, research samples, or other biomass materials that require compositional analysis before further evaluation. ASTM E1690 is useful in quality control settings and in technical programs that compare biomass samples under a shared test method, helping keep results more comparable across teams and facilities.
Why is ASTM E1690 important?
ASTM E1690 matters because ethanol extractives can affect how biomass is interpreted, processed, and compared in testing programs. A standardized method supports more consistent data, which is important for compliance-related documentation, procurement decisions, and quality control. When laboratories and organizations rely on the same ASTM standard, they reduce ambiguity in measurement and improve confidence in reported results. That consistency can also help limit risk when biomass data is used for evaluation or downstream processing decisions.
- Ethanol extractives measurement
- Biomass sample characterization
- Laboratory testing consistency
- Quality control support
- Comparable technical reporting
- Publication Date: 2024-05-17
- Publisher: ASTM
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