ASTM D4931

ASTM D4931 is the standard test method for gross moisture in green petroleum coke, providing a consistent way to evaluate moisture content in this material. By focusing on a defined test approach, it supports more reliable quality checks, purchasing decisions, and process control where moisture can affect handling and performance. As an ASTM standard, it gives buyers, suppliers, and laboratories a common reference for measuring a key material property.

What is ASTM D4931?

This technical document sets out a test method for determining gross moisture in green petroleum coke. In practical terms, it is used to measure the moisture present in the material as received, using a repeatable procedure rather than an informal estimate. ASTM D4931 helps create a shared basis for comparing results across testing locations and transactions. For organizations that handle petroleum coke, the standard supports more uniform reporting and better alignment between material evaluation and commercial requirements.

Where is ASTM D4931 used?

The standard is commonly used in settings that receive, sample, test, or trade green petroleum coke. That may include laboratories supporting refineries, coke producers, terminals, and other quality-control operations where moisture measurement is part of routine material assessment. ASTM D4931 is relevant anywhere a documented test method is needed to evaluate gross moisture before shipment, acceptance, or further processing. It is especially useful when consistent results are important for comparing lots or verifying product condition.

Why is ASTM D4931 important?

Moisture can influence the apparent value, handling characteristics, and reporting of green petroleum coke, so a recognized test method matters. ASTM D4931 helps reduce uncertainty by providing a common procedure for measurement, which can support compliance, procurement, and quality control. Using a standardized method also makes it easier to compare results between parties and to document material condition with greater confidence. In practice, this can help reduce disputes and improve consistency in testing workflows.

• Gross moisture measurement for green petroleum coke
• Standardized test method for consistent reporting
• Useful for quality control and material evaluation
• Supports procurement and acceptance decisions
• Helps align laboratory results across testing workflows