ASTM D4464

ASTM D4464 is the ASTM standard for determining particle size distribution of catalytic materials by laser light scattering. It provides a consistent framework for evaluating how fine or coarse a catalyst sample is, which can be important for product characterization, process control, and comparison across lots. By using a defined laser-based measurement approach, this technical document helps users generate more reliable and repeatable particle size data for catalytic materials.

Purpose of ASTM D4464

The purpose of this standard is to describe a test method for measuring particle size distribution in catalytic materials using laser light scattering. That focus makes ASTM D4464 useful when a laboratory or manufacturer needs a reproducible way to assess how particles are distributed across size ranges. The standard supports more consistent testing practices and helps users align particle characterization results with internal specifications, procurement requirements, or quality checks.

Common use cases of ASTM D4464

This standard is commonly used in laboratory testing and quality control workflows involving catalytic materials where particle size distribution is a relevant performance factor. It may be applied during incoming material evaluation, batch release testing, or comparative assessment of catalyst powders and related materials. ASTM D4464 is also useful for teams that rely on laser light scattering equipment and need a standardized method for generating particle size data that can be reviewed consistently over time.

Why ASTM D4464 matters

ASTM D4464 matters because particle size distribution can affect how catalytic materials are evaluated, handled, and compared. A standard test method helps reduce variability between laboratories and supports more defensible results in compliance, procurement, and product development settings. For organizations that depend on consistent catalyst material data, this standard can improve confidence in testing outcomes and help reduce risk when making technical or commercial decisions.

• Laser light scattering test method
• Particle size distribution measurement
• Catalytic material characterization
• Quality control and batch comparison
• Repeatable laboratory evaluation