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For insulating glass manufacturers, ensuring the correct gas fill level is crucial for maintaining quality control, complying with industry standards, and meeting energy efficiency targets. Traditional gas measurement methods have often relied on invasive testing, like gas chromatography in , but thanks to spark emission spectroscopy technology, used is , non-invasive testing is possible. One such standard that supports this approach is , which establishes a test method for determining argon concentration in sealed IGUs using spark emission spectroscopy (SES).

Why Gas Fill Measurement Matters

IGUs rely on inert gases like argon and krypton to enhance thermal insulation. However, ensuring the correct concentration is a challenge. If an IGU has an insufficient gas fill or experiences leakage over time, its insulation performance drops, leading to higher energy costs and potential product failures. Industry standards like EN 1279-3 and ASTM E2649-20 help manufacturers verify and maintain the gas fill rates necessary for long-term performance.

Understanding ASTM E2649-20

The ASTM E2649-20 standard outlines the method for using spark emission spectroscopy (SES) to measure argon concentration in IGUs. Here’s how it works:

• A high-voltage spark is applied to the glass surface, creating plasma inside the IGU’s cavity.
• The plasma generates light emissions (photons), which are analyzed using spectroscopy to determine the argon concentration.
• The test is non-destructive, meaning the IGU remains intact after testing.
• It is designed primarily for use in a controlled environment, like a manufacturing facility, ensuring precise and repeatable measurements.

How Does ASTM E2649-20 Benefit IGU Manufacturers?

Compliance with Industry Standards – Ensures that gas concentration measurements align with ASTM E2649 and EN 1279-3 requirements.

Non-Destructive Testing – Unlike gas chromatography, which requires sample extraction and destruction of the unit, SES allows for rapid testing without compromising IGUs.

Quality Control & Assurance – Verifying gas fill levels before shipment helps manufacturers reduce warranty claims and improve product reliability.

Time & Cost Savings – Faster measurements (only 2 seconds) mean increased efficiency in production lines and laboratory testing.

Sparklike Handheldâ„¢: Meeting ASTM E2649-20 Standards

One of the industry’s leading non-invasive gas measurement solutions is , which utilizes plasma emission spectroscopy to measure argon concentration. Recognized under ASTM E2649-20, it provides IGU manufacturers and testing laboratories with:

• A portable, fast, and accurate solution for verifying gas fill levels.
• Support for both argon and krypton measurement, ensuring compatibility with different IGU designs.
• Compliance with global industry standards, making it an essential tool for quality assurance programs.

The Future of Gas Measurement in IGUs

As the demand for energy-efficient glazing grows, so does the need for reliable non-destructive gas measurement techniques. With ASTM E2649-20 providing a recognized framework for spark emission spectroscopy, manufacturers can confidently implement non-invasive gas testing solutions like Sparklike Handheldâ„¢ to ensure product performance and compliance.

Are You Ready to Optimize Your Gas Fill Testing?

If you’re looking to improve your IGU gas measurement process, ensure regulatory compliance, and reduce production waste, explore how Sparklike’s non-invasive technology can help.

Contact Sparklike for more information and support on measuring argon concentration in IGUs.

References

ASTM International. (2020). ASTM E2649-20 Standard Test Method for Determining Argon Concentration in Sealed Insulating Glass Units Using Gas Chromatography. Retrieved from .

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