Container closure testing (CCIT) has many different method variations ranging from pharma packaging to medications by themselves. Companies implements these tests for the health and safety of the public. A study was recently conducted by Nadeen Bahnam, a researcher at Uppsala University. The aim was to explore High Voltage Leak Detection (HVLD) viability as a CCIT method concerning FDA requirements. Researcher Bahnam achieved this by comparing HVLD to other known CCIT processes. The purpose of CCIT is to make sure that no contaminants of any kind, such as microorganisms, find their way into sterile products and render them useless. The study outlines CCIT methods that fall under destructive and probabilistic or nondestructive and deterministic. Deterministic methods remove randomness and provide quantitative data points assuming conditions are kept constant. By contrast, probabilistic tests include a degree of randomness, requiring a large sample size to draw conclusions. Each method has advantages and disadvantages that determine its application. The method chosen must detect the minimum-sized leak allowed for a given product.
HVLD works by passing a current through a container, and if a leak is present, the returning voltage will be higher based on the size of the leakage. The method gives fast results and is flexible given the container is nonconductive and the packaging contains a conductive liquid. Researcher Bahnam chose Lenox Laser as the supplier of reliable leaks to evaluate HVLD because of our small-hole drilling capabilities. We were selected over other suppliers because of our ability to provide certification and produce holes of 5μm or less.
Lenox laser was privileged and honored to provide test packaging for this study. We are proud to help further research in such a vital field as CCIT.
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