Particle Size Analysis Sieve

Updated: August 2026

About the Author: This guide was prepared by the technical team at Dahan, with practical experience in laboratory sieve analysis and implementation of ASTM E11 and ISO 3310-1 standards.

What Is a Particle Size Analysis Sieve?

A particle size analysis sieve is a precision instrument used to determine the particle size distribution of granular materials. It consists of a rigid cylindrical frame holding a woven wire mesh with precisely sized square openings, known as apertures. When a sample is agitated on the sieve, particles smaller than the apertures pass through, while larger particles are retained. This process, known as sieve analysis or gradation test, is the oldest technique for measuring particle size distributions but remains a standard laboratory operation.

Why Particle Size Distribution Matters

Particle size directly influences flowability, chemical reactivity, solubility, compressibility, and abrasiveness. In pharmaceuticals, particle size affects dissolution rates. In construction, concrete strength depends on aggregate grading. Inconsistent particle sizes can cause dust issues, blockages, or poor mixing. A particle size analysis sieve provides the quantitative data needed to verify that materials meet specifications.

What Standards Govern Particle Size Analysis Sieves?

All standards are based on a geometric progression. The multiplying factor for ASTM and Tyler sieves is 1.189; for ISO sieves it is 1.414. Sieves meeting these standards deliver consistent, comparable results.

How Do You Perform a Sieve Analysis?

Step 1: Sample Preparation – Select sieves appropriate for the expected particle size range. The sample must be representative—use splitting techniques such as coning and quartering. Weigh each empty sieve to 0.1 grams accuracy.

Step 2: Assembling the Stack – Stack sieves in ascending order of fineness (smallest opening on bottom, largest on top), with a collecting pan at the bottom and a lid on top. Do not overload—no more than a couple of millimetres depth of powder on a working sieve.

Step 3: Agitation – Place the stack in a mechanical sieve shaker. Agitate for up to about 30 minutes. A working limit can be established by stopping when the weight on any sieve changes by less than 0.5% in 5 minutes.

Step 4: Weighing and Analysis – Weigh each sieve with retained material. Subtract empty weights. Convert to percentages of total sample weight. A difference of less than 1% between total recovered and original sample is acceptable. Plot the data as a gradation curve.

What Are the Most Common Mistakes in Sieve Analysis?

Unrepresentative Sampling – The most critical error. If the sample doesn't reflect the bulk material, results are meaningless.

Sample Overloading – Too much material blinds the mesh, preventing smaller particles from passing through.

Inconsistent Sieving Time – Insufficient time skews distribution toward coarse end; excessive time offers no benefit.

Worn or Damaged Sieves – New sieves have tolerances of around ±5 μm; old sieves may have much greater variation.

The Particle Shape Assumption – Sieve analysis measures a particle based on its second-smallest dimension. A long, thin particle may pass end-on through an opening much smaller than its actual length. This is not a random error; it is a systematic bias.

What Are the Real Limitations of Sieve Analysis?

Simplicity vs. Precision – Sieve analysis requires no complex instrumentation and delivers quick results. However, a standard stack typically contains a maximum of eight sieves, meaning the entire distribution is defined by just eight data points.

Particle Shape as Systematic Bias – As noted, sieve analysis measures particles based on their second-smallest dimension. For needle-like or flake-shaped materials, results can systematically deviate from true size distributions.

Practical Lower Size Limit – Below approximately 50 μm, accuracy is compromised as fine particles agglomerate due to electrostatic forces. Standard woven wire sieves cover 20 μm to 1 mm. Electro-etched sieves down to 5 μm are available but expensive and fragile.

The Illusion of Precision – Tables of standard sieve sizes can give the appearance of offering precision down to a micron, which is unjustified. The aperture in a woven wire sieve is a complex 3D shape formed by four crossing wires.

Sieve Analysis vs. Other Particle Sizing Methods

Sieve analysis remains the preferred method for routine quality control and cost-sensitive applications.

How Do You Choose the Right Sieve for Your Application?

Aperture Size (Mesh) – Sieve mesh sizes range from 20 to 500 mesh. A higher mesh number means smaller openings. For example, a #4 sieve has a 4.75 mm opening; a #200 sieve has a 75 μm opening.

Frame Diameter – Common diameters are 200 mm (8 inches) and 300 mm (12 inches). The 200 mm diameter is the standard laboratory version.

Material – Stainless steel (304 or 316L) offers durability and corrosion resistance.

Standards Compliance – Ensure the sieve meets ASTM E11, ISO 3310-1, or relevant standards.

Building a Sieve Stack – Use a √2 (1.414) progression, where each successive sieve opening is approximately 1.414 times smaller than the one above it.

Frequently Asked Questions

A particle size analysis sieve is an essential tool for quality control, research, and production across industries that handle granular materials. Accurate sieve analysis ensures product quality, process efficiency, and regulatory compliance. Selecting the right sieve—with appropriate mesh size, frame diameter, and standard compliance—is the foundation of reliable results. Dahan offers high-precision particle size analysis sieves designed for laboratory and industrial applications, manufactured to meet ASTM and ISO standards with mesh sizes from 20 to 500 mesh and diameters of 200 mm or 300 mm.