True Density

The AMI Densi 100 Series provides precise and reliable determination of true density and solid volume using the gas displacement method (ISO 12154 standard). Designed for powders, granules, and solid materials, these analyzers deliver rapid, non-destructive results with high repeatability. With advanced automation and micro-resolution capability, the Densi Series ensures accurate measurements of material compactness and purity—ideal for research, quality control, and material development.

True density is a critical physical property for solid materials—especially powders—affecting everything from product performance to quality control. True density reflects a material’s purity and structural compactness, both of which play a direct role in its end-use properties.
Traditionally, density has been measured using Archimedes' water displacement method. However, this approach suffers from manual error, liquid drainage issues, and poor repeatability. In response, the International Organization for Standardization (ISO) adopted the gas displacement method (ISO 12154) as the official standard for true density measurement in 2014.
The Densi 100 True Density Analyzer quickly and accurately determines the true volume and true density of a wide range of solid materials, including powders, granules, and solid blocks. With a sample chamber volume range of 1 cm³ to 100 cm³, the system accommodates both small and large samples. Each analysis is completed in approximately 3 minutes, delivering reliable results without compromising accuracy.
√ TEST GAS: Helium or Nitrogen
√ Characteristic: Non-Destructive
√ Resolution: 0.0001 g/ml
√ Repeatability: +/- 1%

Key Features – AMI Densi 100 True Density Analyzer

Integrated Testing Module – Combines the sample chamber, expansion chamber, pressure sensor, and control valve into a compact unit, ensuring uniform temperature and measurement stability. Provides ±0.03% accuracy and ±0.02% repeatability.
Certified Reference Material – Uses non-expanded alloy reference certified by the National Institute of Metrology (China) for traceable calibration with volume precision up to 10⁻⁴ cc.
Multiple Sample Chambers & Inserts – Offers interchangeable chambers and inserts to optimize precision and accommodate various sample volumes and materials.
Precision Density Measurement – Automatically measures true density of powders and solids in the 1 – 1.3 bar range with outstanding reproducibility.
Standalone Operation – Built-in processor and Windows-based OS enable fully independent operation without an external PC. Includes intelligent self-diagnostic for seal integrity verification.
High-Stability Pressure Sensor – Equipped with a 2 bar (F.S.) pressure sensor featuring ±0.2% non-linearity, ensuring highly stable and accurate pressure readings throughout every test.