ASTM D7389
Standard Test Method for Acid Number (Empirical) of Maleic Anhydride (MAH) Grafted Waxes
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About This Item
ASTM D7389 is the ASTM standard for the Standard Test Method for Acid Number (Empirical) of Maleic Anhydride (MAH) Grafted Waxes, providing a consistent way to evaluate this key chemical property. It helps users compare material quality, support product development, and confirm conformity for grafted waxes that may be used in formulated products. By defining a common test approach, this standard supports more reliable results in purchasing, production, and technical review.
Overview of ASTM D7389
The purpose of ASTM D7389 is to describe a standardized test method for determining the empirical acid number of maleic anhydride grafted waxes. In practical terms, it gives laboratories and manufacturers a shared technical reference for measuring and reporting this characteristic in a repeatable way. This is especially useful when acid number is used as a quality indicator or as part of a broader material evaluation program for wax-based products and related formulations.
Common use cases of ASTM D7389
This standard is commonly used in laboratory testing, incoming material verification, and quality control workflows involving maleic anhydride grafted waxes. It may also support product development and supplier comparison when the acid number is an important performance or specification parameter. ASTM D7389 is useful wherever consistent test results are needed to evaluate material behavior, document compliance, or compare batches under the same testing conditions.
Benefits of using ASTM D7389
Using ASTM D7389 helps reduce ambiguity in testing and improves consistency across laboratories and production sites. It supports clearer communication between buyers, suppliers, and technical teams by providing a recognized test method for a specific material type. The standard can also help strengthen quality control, simplify procurement decisions, and lower the risk of disputes when acid number results are part of acceptance criteria or product characterization.
- Standardized empirical acid number testing
- Focus on maleic anhydride grafted waxes
- Useful for quality control and material comparison
- Supports consistent reporting and evaluation
- Publication Date: 2019-07-22
- Publisher: ASTM
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