ASTM D1739 is the ASTM standard for the collection and measurement of dustfall, also called settleable particulate matter. It provides a technical basis for monitoring material that settles from the air onto a surface over time, which can help support environmental assessment, nuisance evaluation, and compliance-related documentation. By using a defined test method, organizations can obtain more consistent dustfall data and compare results more reliably across locations and monitoring periods.

What is ASTM D1739?

ASTM D1739, titled Standard Test Method for Collection and Measurement of Dustfall (Settleable Particulate Matter), describes a standardized approach for capturing and measuring particles that fall out of the air and accumulate by settling. The standard is intended to support repeatable measurement rather than subjective observation. In practice, it helps define how dustfall samples are collected and evaluated so results can be used with greater confidence in environmental monitoring, site assessments, and related technical reporting.

Where is ASTM D1739 used?

This standard is commonly used where dustfall or settleable particulate matter needs to be monitored over time, such as around industrial sites, construction activities, and other locations where airborne material may settle on nearby surfaces. It is also relevant to environmental testing programs and field monitoring workflows that require a consistent collection method. ASTM D1739 is useful when organizations need a practical, documented way to measure deposition and track changes between sampling periods.

Why is ASTM D1739 important?

The value of ASTM D1739 lies in consistency. A standardized method helps reduce variation in how dustfall is collected and measured, which supports more dependable results for compliance checks, quality control, and environmental review. It can also help procurement and technical teams compare monitoring data from different sites or time periods using a common method. For organizations that need defensible settleable particulate matter data, this standard provides a clear testing framework.

• Standard method for dustfall collection
• Measurement of settleable particulate matter
• Supports consistent environmental monitoring
• Useful for site and compliance documentation
• Helps improve comparability of results