ASTM D6738 Volatile Content Testing for Precipitated Silica
ASTM D6738 includes determining volatile content in precipitated silica. The volatile content of precipitated silica may affect the properties of a rubber mixture containing silica and the properties of the final product.
TRUSTED BY
Precision-driven testing for dimensional accuracy and compliance
- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
Overview
ASTM D6738 is a test method for determining the volatile content of precipitated hydrated silicas. The volatility is primarily due to excess water adsorbed on the surfaces of the silica particles.
This test method provides a convenient and accurate means of determining volatile matter content by measuring weight loss during controlled heating and cooling. The value is given as a percentage and rounded to the nearest 0.1%. ASTM D6738 is widely used in quality control and material characterization of silica materials.
Scope, Applications, and Benefits
Scope
ASTM D6738 evaluates:
- Volatile content in precipitated hydrated silicas
- Surface-adsorbed moisture levels
- Material stability and consistency
- Quality variations in silica production
The method applies to precipitated silica materials with controlled particle-size distributions.
Applications
- Rubber and tire manufacturing
- Coatings and paints
- Adhesives and sealants
- Cosmetics and personal care products
- Chemical processing
- Quality control testing
- Research and development
Benefits
- Provides standardized volatile content data
- Supports process control
- Helps maintain consistent product quality
- Enables comparison between silica batches
- Cost-effective and straightforward testing method
- Improves material performance assessment
Test Process
Pan Weighing & Sample Addition
The empty pan is weighed (W₁), and the silica sample is added and reweighed (W₂).
1Heating
The sample is heated as specified to remove volatile content.
2Cooling & Final Weighing
Pan is cooled in a desiccator and reweighed after reaching room temperature (W₃).
3Calculation
Volatile content is calculated using the standard formula.
4Technical Specifications
| Parameter | Details |
|---|---|
| Applicable Materials | Precipitated hydrated silicas |
| Particle Size Range | 20 nm to 200 nm |
| Conditioning | Controlled temperature reaction |
| Output Units | % Volatiles |
Instrumentation Used for Testing
- Analytical balance
- Aluminum weighing pans
- Drying oven or heating apparatus
- Desiccator
- Temperature control system
- Data recording system
Results and Deliverables
- Volatile content percentage
- Batch comparison reports
- Quality control documentation
- Material stability assessment
Frequently Asked Questions
Why Choose Infinita Lab
for Electron Energy Loss
Spectroscopy (EELS)?
At the core of this breadth is our network of 2,000+ accredited labs in the USA, offering access to over 10,000 test types. From advanced metrology (SEM, TEM, RBS, XPS) to mechanical, dielectric, environmental, and standardized ASTM/ISO testing, we give clients unmatched flexibility, specialization, and scale. You are not limited by geography, facility, or methodology – Infinita connects you to the right testing, every time.
Looking for a trusted partner for Electron Energy Loss Spectroscopy (EELS) Testing?
Send query us at hello@infinitlab.com or call us at (888) 878-3090 to learn more about our services and how we can support you.
Request a Quote
Submit your material details and receive testing procedures, pricing, and turnaround time within 24 hours.
Quick Turnaround and Hasslefree process
Confidentiality Guarantee
Free, No-obligation Consultation
100% Customer Satisfaction
