Helium Pycnometry density measurements

Chemical analysis Characterization of materials R&D Support
More than 140 people
More than 140 people at your service
5200 m² laboratory
5200 m² laboratory + 99% of services are provided in-house
Accredited laboratory
Accredited laboratory COFRAC ISO 17025

Your needs: measuring the density of your products AND/OR materials by helium pycnometry

Essai Pycnomètre en laboratoire

The laboratory pycnometer test is a method for measuring the true density of a material with precision. Using a pycnometer, especially helium pycnometry, the analysis excludes open voids or inaccessible pores, ensuring reliable results for both solids and liquids.

This test is particularly suited to industrial sectors where density plays a key role in product performance and compliance.

Analyse densité par pycnomètre pour nanomatériaux

Density analysis by pycnometer provides a precise measurement of the density of nanomaterials, excluding open porosity through the use of a gas capable of penetrating the finest pores. This technique ensures reliable characterization of nanoparticles and nanostructures. It provides essential data to assess the composition, internal structure, and quality of materials at the nanoscale. This information is essential for understanding the behavior of nanomaterials, optimizing their specific properties (such as conductivity, reactive surface area, or stability), and ensuring they meet your industrial requirements.

FILAB laboratory offers pycnometer testing

Our technical resources: pycnometer

In addition to helium pycnometry, other techniques such as mercury intrusion porosimetry and BET analysis are commonly used to assess the density and porosity of nanomaterials. These complementary methods enable in-depth characterization, including specific surface area and pore distribution.

Nos prestations d'analyses

FILAB laboratory supports you with your needs requiring density analysis of your products and materials through the following services:

Density analysis by helium pycnometry

Purity analysis by SEM-FEG-EDX

Porosity analysis by mercury intrusion porosimetry

Surface analysis by BET

Our accreditations and standards

The FILAB laboratory is ISO 17025 accredited by COFRAC for:

the measurement of specific surface area by BET (according to ISO 9277) and laser particle size analysis (according to ISO 13320 in liquid and dry mode)

density measurement by helium pycnometry (according to ASTM B923 and ISO 12154),

the determination of grain size (according to ASTM E112 and NF EN ISO 643) for bulk materials.

Measuring the density of your materials

The density of raw materials is a key indicator in the manufacturing process, impacting both industrial processes and the properties of the final products. By measuring the true density of materials, it is possible to detect anomalies such as inclusions, porosity variations, or impurities.

Measuring the density of your products

Measuring the density of your products is a step toward ensuring their quality, performance, and compliance with industrial standards. This physical characteristic directly influences the mechanical, thermal, and chemical properties of finished products.

Industrial challenges related to the density of nanomaterials

Pharmaceutical: formulation control

In the pharmaceutical industry, nanomaterials are often used to improve active ingredients. Poorly controlled density can disrupt formulations, leading to variations in administered doses or inadequate drug release. This requires precise characterization of nanoparticles to ensure the quality and effectiveness of therapeutic products.

Cosmetics: optimizing textures and performance

For cosmetic products, nanomaterials are used in advanced formulations designed to improve texture, skin penetration, or the effectiveness of active ingredients. Incorrectly measured density can harm the stability of emulsions or the homogeneity of finished products, affecting consumer perception and their actual effectiveness.

Electronics: precision in micro-components

In electronics, nanomaterials are used to develop micro-components or specialized coatings. Non-compliant density can cause structural defects, compromise conductivity, or alter the thermal performance of components. These issues can lead to failures or reduce the lifespan of electronic products.

Chemistry: compliance and reproducibility

In the chemical industry, nanomaterials are widely used as catalysts or active agents. Poorly controlled density can alter the effectiveness of chemical reactions, thereby compromising process reproducibility and the quality of final products.

FAQ

What is helium pycnometry?

A pycnometer is a laboratory instrument used to measure the density and specific gravity of solid materials (powders, metals, plastics...) or viscous materials (sealant, paint, adhesive, lubricant...)

Gas pycnometry is considered one of the most reliable methods for determining a product’s density. The gas used in pycnometry analysis is generally helium because of its small atomic diameter, which allows it to penetrate very small cavities.

Helium pycnometry analysis is generally combined with bulk density data from other techniques such as mercury porosimetry, and makes it possible to obtain information on the material’s porosity or permeability.

Why perform a helium pycnometry analysis?

Helium pycnometry meets the strict requirements of quality control and performance optimization, particularly for analyzing materials such as metal powders, nanomaterials, or polymers.

Thanks to this technique, it is possible to adjust production processes in order to improve the mechanical, thermal, or chemical performance of products. Reliable characterization also limits the risks associated with density variations, preventing quality defects.

Indeed, density is an essential parameter that directly impacts the functionality of nanomaterials. For example, in aerospace, well-controlled density ensures the mechanical strength of parts, while in electronics, it influences conductivity and the miniaturization of components.

By choosing to work with a specialized laboratory such as FILAB, you benefit from fast analysis tailored to your specific needs, while complying with current standards.

Why is it important to measure the density of metal powders?

The density of metal powders affects their melting behavior and the properties of the parts produced, particularly in metallurgy and 3D printing.

What is the purpose of helium pycnometry for nanomaterials?

It makes it possible to measure the true density by excluding nanoscale pores, ensuring consistent performance in advanced applications.

How is pycnometry useful for analyzing polymers?

It detects structural variations or inclusions that can affect mechanical properties, which are essential in sectors such as automotive and medical.

Why measure the density of complex liquids with a pycnometer?

Pycnometry excludes air bubbles and ensures precise measurement, which is essential for guaranteeing the stability and reproducibility of formulations.

The filab advantages
A highly qualified team
A highly qualified team
Responsiveness in responding to and processing requests
Responsiveness in responding to and processing requests
A COFRAC ISO 17025 accredited laboratory
A COFRAC ISO 17025 accredited laboratory
(Staves available on www.cofrac.com - Accreditation number: 1-1793)
A complete analytical facility of 5,200m²
A complete analytical facility of 5,200m²
Tailor-made support
Tailor-made support
Video debriefing available with the expert
Video debriefing available with the expert
Thomas GAUTIER Head of Materials Department
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