ASTM D7319
Standard Test Method for Determination of Existent and Potential Sulfate and Inorganic Chloride in Fuel Ethanol and Butanol by Direct Injection Suppressed Ion Chromatography
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About This Item
ASTM D7319 is a technical standard for determining existent and potential sulfate and inorganic chloride in fuel ethanol and butanol by direct injection suppressed ion chromatography. It is intended to support more consistent fuel-quality testing by identifying specific ionic impurities that can affect product performance, handling, or compliance decisions. For laboratories and fuel producers, this ASTM standard provides a focused method description that helps align analytical results with a recognized industry reference.
Purpose of ASTM D7319
The purpose of ASTM D7319 is to define a standardized test method for measuring sulfate and inorganic chloride in fuel ethanol and butanol using direct injection suppressed ion chromatography. The standard addresses both existent and potential forms of these constituents, which makes it useful for evaluating ionic contamination in a controlled and repeatable way. In practice, the document helps users apply a consistent analytical approach when comparing results across laboratories, batches, or supplier requirements.
Common use cases of ASTM D7319
This standard is commonly used in laboratory testing of fuel ethanol and butanol during production, incoming material checks, and quality control programs. It may also support routine verification where sulfate and inorganic chloride levels need to be monitored in a fuel-alcohol stream. Because ASTM D7319 focuses on a direct injection ion chromatography method, it is especially relevant for analytical workflows that require a defined test procedure and clear reporting for fuel-related materials.
Why ASTM D7319 matters
ASTM D7319 matters because consistent measurement of sulfate and inorganic chloride can help reduce uncertainty in fuel alcohol evaluation. A recognized test method supports more reliable purchasing decisions, product release checks, and internal quality control. It also helps laboratories and stakeholders speak the same technical language when comparing results or documenting conformance. For organizations handling fuel ethanol or butanol, using a standard method can improve confidence in analytical data and reduce the risk of inconsistent testing practices.
- Direct injection suppressed ion chromatography
- Fuel ethanol and butanol testing
- Existent and potential sulfate measurement
- Inorganic chloride determination
- Quality control and compliance support
- Publication Date: 2022-11-17
- Publisher: ASTM
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