ASTM E2679
Standard Test Method for Acidity in Mono-, Di-, Tri- and Tetraethylene Glycol by Non-Aqueous Potentiometric Titration
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About This Item
ASTM E2679 is the standard test method for measuring acidity in mono-, di-, tri- and tetraethylene glycol by non-aqueous potentiometric titration. It provides a controlled way to assess acid content in glycol materials, helping users compare results consistently and support quality decisions. Because acidity can affect handling, performance, and suitability for use, this ASTM standard is a practical reference for testing and product evaluation in glycol-based materials.
ASTM E2679 standard overview
ASTM E2679 defines a test method focused on determining acidity in several ethylene glycol grades using non-aqueous potentiometric titration. The title indicates a laboratory measurement approach rather than a product specification, so its value lies in establishing a repeatable analytical procedure. This makes the standard useful when a consistent method is needed to evaluate acid levels in monoethylene glycol, diethylene glycol, triethylene glycol, and tetraethylene glycol. It supports technical comparison and documented test results.
Where is ASTM E2679 used?
This standard is commonly used in laboratories and quality control settings that test ethylene glycol materials. It may be applied when verifying acidity in incoming raw materials, in-process samples, or finished glycol products. Because the method is based on potentiometric titration in a non-aqueous medium, it is especially relevant to analytical workflows that require careful control of test conditions and reliable measurement of acidic components in glycol samples.
Practical importance of ASTM E2679
ASTM E2679 matters because acidity can be an important indicator of material condition and consistency in glycol products. Using a defined test method helps reduce variation between laboratories and improves confidence in reported results. For procurement, quality control, and compliance-related testing, the standard supports clearer specifications and better product evaluation. It also helps users monitor whether a glycol material remains within acceptable limits for its intended application.
- Acidity measurement by potentiometric titration
- Non-aqueous laboratory test method
- Applies to mono-, di-, tri- and tetraethylene glycol
- Useful for quality control and product comparison
- Publication Date: 2022-07-15
- Publisher: ASTM
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