ASTM D7928
Standard Test Method for Particle-Size Distribution (Gradation) of Fine-Grained Soils Using the Sedimentation (Hydrometer) Analysis
Available Formats:
- Availability: Immediate Download
- Language: English
- License Type: Single User
- Updates: Not Included
- Availability: Request Quote
- Language: English
- License Type: Enterprise / Multi User
- Updates: Included
About This Item
ASTM D7928 is the ASTM standard for determining the particle-size distribution, or gradation, of fine-grained soils using the sedimentation (hydrometer) analysis. It provides a structured way to evaluate how fine soil particles settle in suspension, which helps users describe soil behavior more consistently. ASTM D7928 is useful when reliable gradation data is needed for engineering decisions, material selection, and quality control tied to soil characterization.
ASTM D7928 standard overview
This standard focuses on a sedimentation-based method for measuring the particle-size distribution of fine-grained soils. By using hydrometer analysis, it supports evaluation of how small particles are distributed within a soil sample, which is important for understanding soil classification and related performance characteristics. As an ASTM test method, ASTM D7928 is intended to help users apply a consistent technical procedure when generating gradation data for fine soil materials.
Where is ASTM D7928 used?
ASTM D7928 is commonly used in geotechnical and soil testing workflows where fine-grained soils must be characterized more precisely. It is relevant in laboratories, consulting practices, and project settings that rely on particle-size distribution data for soil evaluation. The method may be used alongside other soil classification and testing procedures when sedimentation results are needed to support engineering assessment, reporting, or acceptance decisions.
Practical importance of ASTM D7928
This standard matters because fine-grained soil behavior can depend heavily on particle size distribution. Using ASTM D7928 helps improve consistency in test results, supports clearer comparison between samples, and can reduce uncertainty in reporting. For organizations involved in procurement, design, or quality control, the standard offers a recognized basis for evaluating gradation and aligning testing practices with an ASTM reference method.
- Hydrometer-based sedimentation analysis
- Fine-grained soil gradation assessment
- Consistent particle-size distribution reporting
- Support for soil classification workflows
- Publication Date: 2022-04-08
- Publisher: ASTM
Need This Standard?
Request a personalized quote today to receive the latest edition in PDF or other available formats.
Need This Standard?
Request a personalized quote today to receive the latest edition in PDF or other available formats.
Summarize with AI
Get quick summaries using your favorite AI engine.
Online Standart Disclaimer
OnlineStandart.com is an authorized reseller of international standards, operating through partnerships with authorized distributors. We do not own the copyrights or trademarks of the standards we sell, including but not limited to those of API, ASHRAE, BSI, SAE, ASTM, IEEE, IEC, ASME, ISO, and others.
All product names, logos, and brands are the property of their respective owners and are used for identification purposes only; their use does not imply endorsement. OnlineStandart.com is not affiliated with or endorsed by any standards development organization unless explicitly stated. The content of this document is for informational purposes only and is intended to promote our licensed reselling services.
Online Standart does not host, distribute, or link to free, unlicensed, or uncertified copies of copyrighted standards. Every document we deliver is a licensed copy obtained through authorized channels and supplied with full licensing documentation. The “Free PDF Download” option on our product pages refers to this free informational document — never to a free copy of any standard.