The primary function of a rubber stopper for blood collection tube is to create a tight seal that prevents any leakage of the blood sample. During the collection process, the tube is often subjected to movement, jostling, and even a vacuum suction in some cases. A securely fitted rubber stopper ensures that the blood remains inside the tube, eliminating the risk of spillage or contamination. This seal is critical during transportation or when the tubes are being stored in a laboratory environment. Without a proper seal, the blood could leak, which not only causes a mess but also poses a risk of contamination, potentially affecting test results or even endangering medical personnel.

Another vital function of a rubber stopper for blood collection tube is to protect the integrity of the blood sample. Blood is a biological fluid that is highly sensitive to external conditions, including temperature, oxygen, and contamination. A properly sealed rubber stopper ensures that the sample remains isolated from the outside environment, which is essential for accurate analysis. This is particularly important for certain types of blood tests that require the sample to be preserved for a specific period before processing.

For instance, many blood collection tubes are designed to contain additives like anticoagulants or preservatives that prevent clotting or preserve the blood cells. A high-quality rubber stopper prevents these additives from leaking out or coming into contact with other substances, ensuring that the sample is preserved in its intended state. Additionally, the stopper helps maintain the sample’s temperature and protects it from contaminants, which can alter the results of the tests.

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Provides special chlorobutyl rubber formula for good compatibility
With pharmaceuticals Special treatment process and the most stringent process control ensure the cleanliness of the rubber stopper
Microbiological testing is to ensure the safety of rubber stoppers