Understanding Container Closure Integrity Testing
Container Closure Integrity Testing (CCIT) is a comprehensive evaluation process that tests the adequacy and effectiveness of container closing mechanisms. Such tests cover various parameters that determine the capacity of a container to maintain a sterile environment and protect the contents against contamination.
Microorganisms, air and gases are the biggest threats that can cross the closure barrier and lead to contamination. The container closure integrity testing method gives you an idea of how effective the closure mechanism is in maintaining the sterility and quality of the product throughout the shelf life.
Understanding the Container Closure Integrity Testing Method
Container closure integrity testing systems comprise primary packaging components and secondary packaging materials. Primary packaging components are those that come in direct contact with the product while secondary packaging materials are those that provide an additional layer of protection over the primary packing components.
The container closure integrity testing system ensures both the components conform to the highest standards, which is so important both for the product and consumers.
The Container Closure Integrity Testing Method
Container closer integrity testing is a comprehensive testing process that analyses different parameters before determining the safety level of a container closure mechanism. The process verifies that all the components that are part of the container closure mechanism meet the exact specification for sterility for that particular product.
The container closure integrity testing method simulates the natural stress conditions that the containers are likely to be exposed to during storage, handling or transportation. It also tests the components used for closure to understand if they are the most appropriate ones for the product.
There are various guidelines and regulations which can be done through several methods.
High Voltage Leak Detection (HVLD) Test
This method (also known as Electrical Conductivity and Capacitance Test) is used to find leaks in rigid or flexible, non-porous packaging that contains semi-liquid or liquid products.
During this test, a high frequency, a high-voltage wave of current is passed through the container closure mechanism. Any leakage will cause a rise in voltage that will trigger off the reject mechanism that detects such leaks.
The Laser-based Gas Headspace Test
This container closure integrity testing method typically uses non-contact methods such as using laser rays to determine the integrity of the container closure mechanism.
In this method, an infrared diode laser ray is passed through the head space region of the closure area. The light is absorbed by the head space region through pressure and gas concentration. This absorption is then analysed through a microprocessor to determine the integrity of the closure mechanism.