* For testing true density of various samples, open/closed porosity of rigid foam materials;
* In-situ automatic weighing module to reduce operator workload;
* Supporting temperature control module to realize temperature range from 4°C to 60°C;
* Various sample cells with different volumes, can load in fiber, powder, blocks, slurry etc.
* Using gas displacement principles in accordance with: ISO 12154; ASTM D4892, B923, C604, C830; DIN 66137; USP <699> etc.
* The gas pycnometer analyzer uses an automated mechanical sealing system that applies consistent sealing force and positioning for every measurement.
* For testing true density of various samples, open/closed porosity of rigid foam materials;
* In-situ automatic weighing module to reduce operator workload;
* Supporting temperature control module to realize temperature range from 4°C to 60°C;
* Various sample cells with different volumes, can load in fiber, powder, blocks, slurry etc.
* Using gas displacement principles in accordance with: ISO 12154; ASTM D4892, B923, C604, C830; DIN 66137; USP <699> etc.
* The gas pycnometer analyzer uses an automated mechanical sealing system that applies consistent sealing force and positioning for every measurement.
Density-200 Gas Pycnometer Analyzer Profile
True density is one of the important parameters in measuring physical property of solid materials, especially for powder. Value of true density depends on material purity and compactness which affect the quality of sample. The traditional measuring way of true density is based on Archimedes water displacement method. As its serious inaccuracy of manual operation and drainage exists, the ISO (International Standard Organization) official implemented gas displacement method (ISO 12154) to test the true density in 2014.
If the material has no porosity, the true density can be measured by displacement of any fluid in which the solid remains inert. The accuracy of the method is limited by the accuracy with which the fluid volume can be determined. Usually, however, the pores, cracks, or crevices of the material will not easily be completely penetrated by a displaced liquid. In these instances, the true density can be measured by using a gas as the displaced fluid if the material does not contain closed pores, which cannot be penetrated by the analysis gas. Therefore, the density experimentally determined by gas pycnometry generally is the so-called skeleton density of the material which equals the true solid-state density only for samples without closed pores --- cite from ISO 12154.
The Density-200 series delivers precise, repeatable true density measurement by combining advanced gas pycnometry with intelligent automation and flexible system configurations. Designed for both research and production environments. It minimizes operator workload while ensuring reliable, traceable results. By integrating key measurement and control functions directly into the instrument, it improves workflow efficiency, reduces potential error sources, and increases confidence in every reported value.
Density-200 Gas Pycnometer Analyzer Features
The Density-200 series stands apart from traditional gas pycnometers by combining smart automation, flexible configurations, and precision features that enhance both productivity and data quality.
1. Automated Sample Chamber Sealing
The Density analyzer uses an automated mechanical sealing system that applies consistent sealing force and positioning for every measurement. This eliminates variability introduced by manual tightening and improves repeatability across users and test runs.
2. Intelligent Reference Volume Management
Multiple internal reference volumes are integrated into the system. During analysis, the software automatically selects the optimal reference configuration based on the installed sample cell, minimizing dead volume effects and improving volumetric accuracy across different sample sizes.
3. Optional In-Situ Automatic Weighing (B module)
Select module feature an integrated microbalance that allows samples to be weighed directly inside the instrument. This eliminates external weighing steps, reduces handling errors, improves traceability, and streamlines the workflow from loading through final reporting.
4. Temperature-Control Options (TC module)
For samples that are temperature-sensitive, the TC (Temperature Control) models offer precise thermal regulation from 4°C to 60°C via an integrated Peltier module. This ensures consistent conditions and repeatable results, even for challenging materials.
5. Vacuum Degassing Options (V module)
For materials that require pre-treatment prior to analysis, the V (Vacuum Degassing) module provide integrated vacuum conditioning to remove residual gases or moisture from the sample. The system supports vacuum levels down to 10 kPa, improving sample consistency and measurement repeatability, while maintaining a streamlined, single-instrument workflow.

Density-200 Gas Pycnometer Analyzer Specifications
The Density-200 series is available in multiple configurations to match laboratory workflows and application requirements, below list various models for selection.
Density-200: Designed for standard quality control and routine true density measurements where manual weighing, ambient temperature operation, and simple sample preparation are sufficient.
Density-200TC: Adds temperature control (TC) module for materials sensitive to environmental fluctuations, improving measurement stability and repeatability under varying laboratory conditions.
Density-200B: Incorporates an integrated balance (B) module for automated sample weighing, reducing manual handling and improving throughput in quality control and routine testing environments.
Density-200V: Includes integrated vacuum degassing (V) module for sample pre-treatment prior to analysis, supporting materials that require moisture or gas removal.
Density-200X: Combined Temperature control (TC), integrated weighing (B), and vacuum degassing (V) may be specified individually or in any combination, allowing the Density-200X to be configured to match specific laboratory workflows and application requirements. It represents the most complete configuration, combining all three options.
Test Gas | Helium, Nitrogen, Inert Gases |
Gas Delivery Method | Pulsed injection or gas flow with pressure equilibration, vacuum as option, fine powder handling methods (powder guard mode) |
Testing Port | 1 |
Repeatability | 100 cm3: ± 0.01% 35 cm3: ± 0.01% 10 cm3: ± 0.01% |
Accuracy | 100 cm3: ± 0.02% 35 cm3: ± 0.02% 10 cm3: ± 0.03% |
Sample Cell Volumes | 100 mL, 35mL, and 10 mL (standard) Optional: smaller sample cells |
Pressure Parameters | Pressure range: 0 – 300 kPa (0 – 3 bar, 0 – 43.5 psi) Pressure resolution: 0.001 kPa (0.00001 bar, 0.000145 psi) |
Data Output | PDF, TXT, Excel, connected via Ethernet/USB |
Integrated Balance (for B module only) | Up to 500g; 0.001g balance resolution |
Temperature Range (for TC module only) | 4–60°C (Peltier-controlled); Stability: +/- 0.01°C; Accuracy: 0.002°C |
Integrated Vacuum (for V module only) | Sample pretreatment via vacuum degassing (integrated pump) to 10kPa |
Electric Supply | 100–240 VAC, 50/60 Hz, 120W (standard), 320W (temperature control) |
Operating Environment | 15–35°C, 10-90% RH, non-condensing |
Footprint (W × D × H) | 465 × 350 × 370 mm / 18 x 14 x 15 inch |
Weight | Approx. 10 kg / 22lbs |
Applicable Standards | Measurements are performed using gas displacement principles in accordance with: ISO 12154; ASTM D4892, B923, C604, C830; DIN 66137; USP <699> etc. |
Sample Preparation Accessories (option) | Foam Material Cutting Tool - designed for cutting foam and low-density materials into uniform sample geometries prior to true density analysis. Capable of producing 25 × 25 × 25mm foam sample. |
Density-200 Gas Pycnometer Analyzer Software & Applications
The Density-200 series is designed not only for speed and convenience, but for laboratory-grade precision and data consistency. Its software environment combines guided workflows with automated data handling to minimize operator dependence while maintaining rigorous measurement control. This approach ensures reliable results in both routine quality control and advanced material characterization applications.
Fast Test Mode:
The software includes predefined test routines that allow standardized measurements to be initiated with minimal parameter setup. This simplifies operation for routine quality control while maintaining consistent test conditions across operators and laboratories, making the system well suited for high-throughput environments.
Intuitive Data Processing & Reporting:
Automated data processing and one-click report generation streamline result evaluation and documentation. Measurement data can be exported in common file formats, while built-in tools enable easy comparison of historical and batch-to-batch results to support process monitoring and trend analysis.

The Density-200 series is engineered to deliver accurate and repeatable true density measurements across a wide range of industries and material types. Its versatility, automation, and precision make it an ideal tool for laboratories focused on quality control, product development, and research.
Additive manufacturing (AM) powders: Ensure consistency in metal and polymer powders used for 3D printing, improving part integrity and quality.
Catalysts: Measure true (skeletal) density of catalyst powders, pellets, and supports to support porosity calculations, formulation consistency, and quality control.
Pharmaceuticals and nutraceuticals: Measure true density of active ingredients and excipients for better formulation control and tablet uniformity.
Polymers, ceramics, and refractories: Analyze structural materials for performance under thermal, chemical, and mechanical stress.
Cement and construction materials: Support materials development and quality assurance by tracking density changes linked to composition and performance.
From R&D to production environments, the Density-200 series provides the data and confidence needed to make informed decisions in material science and process optimization.
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