ASTM C400 is the standard test methods document for quicklime and hydrated lime used for neutralization of waste acid. It provides a technical basis for evaluating how these lime products are characterized for this application, helping users compare materials with greater consistency. For procurement, quality control, and compliance workflows, ASTM C400 supports more reliable product selection and testing decisions when lime is intended for acid neutralization.

Overview of ASTM C400

The official title, Standard Test Methods for Quicklime and Hydrated Lime for Neutralization of Waste Acid, indicates a focused test-method standard rather than a broad material specification. It is concerned with measuring or assessing quicklime and hydrated lime in the context of neutralizing waste acid, which makes the document relevant to laboratory testing and product evaluation. ASTM C400 is useful when buyers and users need a common technical reference for comparing lime materials intended for this purpose.

Common use cases of ASTM C400

This standard is commonly used where quicklime or hydrated lime is selected for waste acid neutralization and the material must be tested before use or purchase. It may support laboratory analysis, incoming inspection, and supplier qualification for lime products in treatment workflows. ASTM C400 is also relevant when technical teams need a shared method for verifying whether a material is suitable for neutralization-related performance checks.

Benefits of using ASTM C400

Using ASTM C400 helps create a consistent basis for testing quicklime and hydrated lime in waste acid neutralization applications. That consistency can improve product comparison, reduce uncertainty in purchasing, and support quality control programs. It also helps align internal testing practices with a recognized ASTM standard, which may reduce risk in specification review, supplier evaluation, and compliance-oriented documentation.

• Test methods for quicklime and hydrated lime
• Focused on waste acid neutralization
• Supports consistent product evaluation
• Useful for quality control and procurement