info@universallab.org

WhatsApp: +41762172997

Sample Requirements

Application Case

Example Result

What our customers are saying

Need precise analysis? Contact us – we'll help you choose the best solution for your needs.

info@universallab.org +41 762172997

Frequently Asked Questions

Density Testing

Variant (SKU)

True density

Bulk density

Tap density

Compacted density

Price may vary based on selected options

Delivery time: 1 ~ 2 weeks

For powders, typically 10–50 g; for solids, one piece large enough for immersion.

Yes, but they must be handled carefully and tested quickly to avoid moisture absorption.

Yes, by comparing true density and bulk/compacted density, we can calculate total porosity.

Principle

Density testing applies to a wide variety of materials:

Material types: powders, granules, solid pieces, porous materials, liquids
Typical application scenarios:
- Evaluate powder packing and flow behavior
- Control porosity and compaction quality
- Optimize formulations in pharmaceutical tablets and ceramic sintering
- Verify solid parts’ material integrity and quality
Industries served: pharmaceuticals, ceramics, metallurgy, plastics, additive manufacturing, chemical engineering

Case 1: Pharmaceutical Powder

Goal: Determine bulk and tapped density for tablet formulation
Result: Bulk density 0.42 g/cm³; tapped density 0.55 g/cm³; compressibility index 23.6%

Case 2: Metal Compact

Goal: Measure true and compacted density for sintering optimization
Result: True density 7.85 g/cm³; compacted density 6.9 g/cm³; porosity 12.1%

Case 3: Ceramic Porous Block

Goal: Assess porosity using Archimedes’ method
Result: Archimedes’ density 2.45 g/cm³; apparent porosity 18.5%

Output Formats

Density values in g/cm³ or kg/m³
Porosity percentages
Data tables and comparative graphs
PDF report with detailed methods and results

Principle

To ensure accurate and reliable results, please prepare samples according to the following guidelines:

True Density (Gas Displacement Method):
- Powder: preferably provide at least 10 mL in volume.
- Bulk solids: diameter ≤ 15 mm, height ≤ 35 mm, total volume ≥ 6 mL.
Tapped Density or Bulk (Loose) Density:
- Powder: at least 50 g or ~80 mL in volume.
Compacted Density:
- Powder: at least 20 g.
Liquid Density:
- Liquid samples (flowable): at least 10 mL.
Foam Plastic Density (Immersion Method):
- Suitable for granular or seamless dense plastic materials.
Archimedes’ Principle Density Measurement:
- Solid samples: appropriate size, smooth surface, no deep pores or cavities, at least 1 g in mass. General notes:
Samples should be clean, dry, and free of contaminants.
For hygroscopic or reactive materials, please inform us in advance.
For porous or delicate samples, discuss material compatibility and handling with our lab.

Density testing is a core analytical method for understanding the structure and performance of materials.
From powders to polymers, it reveals how particles are packed, how porous a material is, and how it will behave in real-world applications.

Regulatory testing

Environmental testing

Data analysis

Regulatory testing

Environmental testing

Data analysis

Sample Requirements

Application Case

Example Result

What our customers are saying

Need precise analysis? Contact us – we'll help you choose the best solution for your needs.

Frequently Asked Questions

Density Testing

Variant (SKU)

Principle

Case 1: Pharmaceutical Powder

Case 2: Metal Compact

Case 3: Ceramic Porous Block

Output Formats

Principle

Regulatory testing

Environmental testing

Data analysis

Regulatory testing

Environmental testing

Data analysis

Sample Requirements

Application Case

Example Result

What our customers are saying

Need precise analysis? Contact us – we'll help you choose the best solution for your needs.

Frequently Asked Questions

Density Testing

Variant (SKU)

How much sample is needed?

Can hygroscopic materials be measured?

Can we get porosity data from density tests?

Principle

Case 1: Pharmaceutical Powder

Case 2: Metal Compact

Case 3: Ceramic Porous Block

Output Formats

Principle