ASTM D611 is the ASTM standard for determining the aniline point and mixed aniline point of petroleum products and hydrocarbon solvents. It provides a recognized test approach for identifying temperature behavior related to solvency characteristics, which can help support product evaluation and material comparison. For buyers, laboratories, and quality teams, this standard is useful because it offers a common reference for testing and reporting results on compatible liquid products.

Purpose of ASTM D611

The purpose of ASTM D611 is to define standard test methods for measuring aniline point and mixed aniline point in petroleum products and hydrocarbon solvents. These values are commonly used to compare how a material interacts with aniline under specified test conditions. As a technical document, it helps promote consistent laboratory practice, making results more comparable across suppliers, batches, and test facilities. This makes ASTM D611 valuable when a clear, standardized measure is needed for product assessment.

Common use cases of ASTM D611

ASTM D611 is commonly used in laboratory testing, incoming material evaluation, and product specification work for petroleum products and hydrocarbon solvents. It may support routine quality control and procurement decisions where a standardized measure of aniline point or mixed aniline point is needed. The test methods are typically relevant to organizations that analyze liquid hydrocarbon-based materials and need consistent data for comparison, documentation, or compliance-oriented workflows.

Why ASTM D611 matters

This standard matters because it helps reduce ambiguity in testing and reporting for materials covered by the official title. Using ASTM D611 can support consistency across laboratories, improve confidence in product comparisons, and help teams make better-informed quality and purchasing decisions. It is also useful for compliance programs that rely on recognized ASTM methods, since standardized procedures can lower the risk of inconsistent results and misunderstandings between technical stakeholders.

• Aniline point and mixed aniline point testing
• Petroleum products and hydrocarbon solvents
• Standardized laboratory comparison
• Quality control and product evaluation
• Consistent reporting for technical review