ASTM C813: Glass Hydrophobic Contamination Contact Angle Testing Services
ASTM C813 detects hydrophobic contamination on glass surfaces by measuring the contact angle. Hydrophobic contaminants are organic molecules sticking on the glass surface. The test is used to detect hydrophobic contaminants on glass that harbors when exposed to ambient end use conditions. Values are expressed in SI units.
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- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
What Is ASTM C813 Glass Hydrophobic Contamination Contact Angle?
ASTM C813 determines the presence of hydrophobic contamination on glass surfaces by measuring the contact angle of a liquid droplet. The test evaluates how surface contamination affects the wettability and cleanliness of glass.
This method is widely used in glass manufacturing, coatings, and surface treatment industries. It helps ensure proper surface preparation, coating adhesion, and optical performance.
Applications and Benefits of ASTM C813 Glass Hydrophobic Contamination Contact Angle Testing
Scope
ASTM C813 evaluates surface contamination on glass by analyzing contact angle behavior. The test identifies hydrophobic residues that reduce surface wettability and affect performance.
The test evaluates:
- Presence of hydrophobic contamination
- Surface wettability characteristics
- Cleanliness of glass surfaces
- Effect of contamination on coating adhesion
- Surface preparation quality
Applications
- Glass manufacturing and processing
- Coated and treated glass surfaces
- Optical and display glass
- Solar panels and photovoltaic glass
- Automotive and architectural glass
- Quality control in surface cleaning
Benefits
- Detects surface contamination effectively
- Ensures proper surface cleanliness
- Supports coating and bonding performance
- Improves product reliability and quality
- Enables comparison of surface conditions
Our ASTM C813 Testing Procedure
Sample Preparation
Glass specimens are cleaned or prepared as required.
1Droplet Application
A controlled liquid droplet is placed on the surface.
2Contact Angle Measurement
The angle between droplet and surface is measured.
3Data Recording & Evaluation
Contact angle values are analyzed to assess contamination.
4ASTM C813 Test Parameters and Requirements
| Parameter | Details |
|---|---|
| Applicable Materials | Glass surfaces |
| Contact Angle Range | ~0° to 120° |
| Droplet Volume | ~2 µL to 10 µL |
| Test Temperature | ~20°C to 25°C |
| Measurement Accuracy | ±1° |
| Measured Outputs | Contact angle (degrees) |
- Contact angle goniometer
- Precision liquid dispensing system
- Optical imaging system
- Surface cleaning tools
- Sample stage and fixtures
- Data acquisition software
Equipment and Instrumentation Used for ASTM C813 Testing
What You Receive: Test Report, Data, and Certification
- Contact angle values (degrees)
- Surface wettability assessment
- Contamination detection analysis
- Surface cleanliness evaluation
- Test condition summary
- ASTM compliance report
ASTM C813 Glass Hydrophobic Contamination Contact Angle FAQs
ASTM C813 evaluates hydrophobic contamination on glass surfaces using contact angle measurement. It determines cleanliness by assessing how water spreads or beads, helping identify organic residues affecting adhesion and coating performance.
Key parameters include contact angle measurement, droplet size, surface condition, and environmental factors. Controlled testing conditions ensure accurate evaluation of surface wettability and contamination levels.
The test measures contact angle of a water droplet on glass. Higher angles indicate hydrophobic contamination, while lower angles indicate clean, hydrophilic surfaces suitable for bonding or coating.
ASTM C813 is used for glass surfaces such as architectural glass, optical glass, and coated glass where surface cleanliness is critical for performance and adhesion.
ASTM C813 results may be influenced by surface roughness, environmental conditions, and measurement technique. It provides surface-level assessment and may require additional analysis for detailed contamination characterization.
Why Choose Infinita Lab for Glass Hydrophobic Contamination Contact Angle Testing?
At the core of this breadth is our network of 2,000+ accredited laboratories across the USA, offering access to over 10,000 testing methods and analytical services. From advanced materials characterization (SEM, TEM, RBS, XPS) to mechanical, chemical, environmental, biological, and standardized ASTM/ISO-compliant testing, we deliver unmatched flexibility, specialization, and scale. You are never limited by geography, facility, or methodology — Infinita Lab connects you to the right expertise and testing solution, every time.
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