Particle Characterization

At Clark Testing, we deliver comprehensive particle characterization services that are fully integrated with our analytical chemistry testing capabilities—providing a single-source solution for complete material analysis. Our laboratory specializes in evaluating both the chemical composition and physical properties of a wide range of materials, enabling our clients to make informed decisions for product development, quality assurance, and regulatory compliance.

By combining particle testing and analytical chemistry under one roof, Clark Testing offers unmatched convenience and consistency. This integrated approach ensures high-quality data, faster turnaround times, and coordinated support for even the most complex testing needs. Whether you're optimizing a manufacturing process, qualifying a new raw material, or conducting research and development, our particle characterization services help you understand how materials behave at the microscopic level.

Industries We Serve with Particle Characterization Testing

Clark Testing supports a diverse range of industries where particle size, shape, distribution, and surface properties are critical to product performance and compliance. These industries include:

Agriculture: Analysis of fertilizers, pesticides, and soil additives for optimal dispersion and reactivity.
Medical and Pharmaceutical: Particle sizing and purity testing of active pharmaceutical ingredients (APIs), excipients, and implantable devices.
Food and Beverage: Evaluation of powders, thickeners, and emulsifiers for consistency, texture, and quality control.
Electronics and Semiconductors: Testing of conductive pastes, micro powders, and advanced ceramics used in electronic components.
Energy and Renewables: Characterization of battery materials, fuel cell powders, and catalysts to ensure performance and efficiency.
Primary Metals and Alloys: Analysis of metal powders used in additive manufacturing and metallurgy.
Heavy Industry and Construction: Cement, grout, and filter media testing for strength, flow characteristics, and material longevity.

Materials Commonly Tested in Our Lab

Our particle characterization services are tailored to a wide array of material types, including but not limited to:

Catalysts and Aluminas – Used in petrochemical and environmental applications
Propellants and Ceramics – Critical for aerospace, defense, and high-performance industries
Filters and Cements – Evaluated for pore size, particle distribution, and strength
Adsorbents and Activated Carbon – Tested for surface area, porosity, and adsorption capacity
Carbon Black and Pigments – Assessed for dispersion quality and particle uniformity in coatings
Paints, Coatings, and Inks – Analyzed for flow behavior, particle settling, and stability
Medical Implants and Biocompatible Powders – Evaluated for purity, grain size, and consistency
Cosmetics and Nanomaterials – Including nanotubes, used in high-performance formulations
Electronic Components and Conductive Powders – Tested for uniformity, thermal behavior, and performance

We continually expand our material testing capabilities to meet emerging industry needs, including advanced composites and novel nanomaterials.

Why Choose Clark Testing for Particle Characterization?

With decades of experience and ISO 17025-accredited testing protocols, Clark Testing provides dependable particle analysis for both routine quality control and complex R&D projects. Our expert staff uses advanced instrumentation—such as laser diffraction, BET surface area analyzers, and scanning electron microscopy (SEM)—to deliver precise, actionable data.

By offering both chemical analysis and particle testing in one location, we help our clients streamline workflows, reduce costs, and ensure product consistency from raw materials through final product validation.

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Particle Size Testing:

In general, there are 7 properties which Particle Size has a direct affect: texture, appearance, effectiveness, sedimentation, packing density, dissolution, and reaction. Therefore, Particle Size plays an important role in formulation.

Particle Size Distribution by Laser Light Scattering
Particle Count
Sieve Analysis

Density Testing:

Density is the mass of a substance with regard to the space in which it occupies. It is important to determine the density when there are changes in vendor materials or in processing.

Apparent Density
Bulk Density
Tap Density

Surface Area Testing

Important in the formation, structure, and potential use of a material, Surface Area is a common test.

Surface Area is measured by the static volumetric method using nitrogen. The material is first out-gassed using heat and/or vacuum to remove any impurities. After being cooled with liquid nitrogen, the volume of gas adsorbed is measured at varying pressures. Analysis follows the B.E.T. (Brunauer, Emmet, and Teller) Theory.

Testing may be processed as Single Point Surface Area or BET Surface Area.

Porosimetry Testing:

Porosimetry testing is used to determine the porous nature of a material which includes pore size, volume, distribution, density, and other porosity characteristics. Porosity is important to the formation, structure, and use of various materials.