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Heat Soak Testing

Heat Soak Testing

Heat soak testing is a process to mitigate the risk of spontaneous breakage due to Nickel Sulfide inclusions. This process involves subjecting fully tempered glass to elevated temperatures for a specified duration. The objective is to induce any potential inclusions to break during the test, reducing the likelihood of future spontaneous breakage in the field.


Currently, there is no North American standard for heat soak testing.

Blue Star follows the European standard (BS EN 14179-1).

Benefits of Heat Soak Testing

Reduced Risk: Heat soak testing significantly reduces the risk of spontaneous breakage, making glass safer for architectural applications.

Compliance: It aligns with industry standards and codes, ensuring compliance with safety requirements.

Enhanced Assurance: Glass that has undergone heat soak testing may come provides additional assurance to building owners.

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