ASTM E276

ASTM E276 is a test method for particle size or screen analysis at the 4.75 mm (No. 4) sieve and finer for metal-bearing ores and related materials. It provides a structured way to evaluate how these materials are distributed by size, which is important for processing decisions, product consistency, and quality control. By focusing on sieve-based analysis, the standard supports more reliable comparison of test results across laboratories and production settings.

ASTM E276 standard overview

The ASTM E276 standard addresses particle size measurement through screen analysis for metal-bearing ores and related materials that pass the 4.75 mm (No. 4) sieve. In practical terms, it helps define how finer fractions are separated and assessed so results are consistent and repeatable. This type of technical document is useful when particle size is a key factor in material evaluation, handling, or downstream processing. ASTM E276 supports a common testing approach for laboratories that need standardized sieve analysis data.

Where is ASTM E276 used?

This standard is commonly used in testing environments that handle metal-bearing ores and similar materials requiring sieve analysis. It is relevant in laboratory workflows where particle size information is needed for material characterization, incoming inspection, or process control. ASTM E276 may also be used by organizations comparing test results from different batches or sources, especially when materials need to be assessed at the No. 4 sieve cutoff and finer fractions. It fits well into routine quality and evaluation procedures.

Practical importance of ASTM E276

ASTM E276 matters because particle size data can affect how metal-bearing ores and related materials are evaluated and processed. A standardized test method helps reduce variation in results, supports clearer specifications, and improves confidence in reported screening data. For procurement, compliance, and quality control, using a recognized ASTM standard can simplify documentation and make comparisons more dependable. ASTM E276 is especially useful when consistent sieve analysis is needed for technical review or acceptance decisions.

• Particle size and screen analysis
• 4.75 mm (No. 4) sieve and finer fractions
• Metal-bearing ores and related materials
• Laboratory testing and quality control
• Consistent, comparable sieve results