ASTM D6940/D6940M
Standard Practice for Measuring Sifting Segregation Tendencies of Bulk Solids
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About This Item
ASTM D6940/D6940M is the ASTM standard for measuring sifting segregation tendencies of bulk solids. It provides a practical framework for evaluating how particulate materials may separate during handling, transfer, or movement, which can affect blend uniformity and end-use performance. For manufacturers, processors, and quality teams, this standard helps support more consistent material evaluation and informed decisions when segregation risk matters in production or supply chains.
ASTM D6940/D6940M standard overview
The ASTM D6940/D6940M standard focuses on a measurement practice for sifting segregation tendencies in bulk solids. Its technical context is centered on understanding whether a material blend may separate when exposed to conditions that encourage smaller or larger particles to move differently. As a test and evaluation document, ASTM D6940/D6940M is commonly used to support comparison of materials, process conditions, or formulation changes in a controlled and repeatable way.
Where is ASTM D6940/D6940M used?
This standard is commonly used wherever bulk solid materials are blended, handled, stored, or transferred and segregation could affect product quality. It may be relevant to powders, granules, and other particulate solids in production and quality control workflows. ASTM D6940/D6940M is especially useful in settings that need to assess how a material behaves during processing, packaging, or sampling, where sifting can influence consistency and representativeness.
Practical importance of ASTM D6940/D6940M
ASTM D6940/D6940M matters because segregation can lead to inconsistent performance, uneven composition, and reduced confidence in product quality. Using a standardized practice helps support more reliable testing and better comparison between materials or batches. It can also assist procurement and engineering teams when evaluating formulations, reducing handling risk, and documenting technical performance. In practice, the standard helps bring structure to a problem that often affects real-world bulk solid operations.
- Measures sifting segregation tendency
- Supports bulk solid evaluation
- Useful for quality control comparisons
- Helps assess blend consistency risk
- Applies to particulate material handling
- Publication Date: 2020-02-05
- Publisher: ASTM
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