The internal pressure strength of glass containers can be determined through a test method called the burst test. This test is commonly used in the glass container industry to ensure that containers can withstand the internal pressure that can build up inside them during transportation and storage.
In the burst test, a glass container is placed in a sealed chamber and filled with water. The chamber is then pressurized with air or another gas until the container ruptures. The pressure at which the container ruptures is recorded and used to determine the internal pressure strength of the container.
The burst test can be performed using different types of equipment, including automated burst testers and manually operated burst testers. The testing equipment should be calibrated and maintained under appropriate standards to ensure accurate and reliable results.
The International Organization for Standardization (ISO) provides a standard for the burst test of glass containers, ISO 7458:2016. This standard specifies the testing equipment, test procedure, and calculation method for determining the internal pressure strength of glass containers.
It is important to note that the burst test is just one of several tests that can be used to assess the strength of glass containers. Other tests include the vertical load test, horizontal impact test, and thermal shock test. The appropriate test method should be selected based on the specific application and intended use of the container.
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