[Analysis Case] Foreign Matter Analysis in Medical PVC Tubes

Analysis case of foreign substances present in medical PVC tubes!

Here is a case study of the analysis of foreign substances found in medical-grade PVC tubes. ■ Information received from the customer regarding the occurrence of foreign substances - Situation of foreign substance occurrence ⇒ Discovered during inspection in the manufacturing process - Material, size, and color of the foreign substance ⇒ Resin, several hundred micrometers, darkish - Expected content of the foreign substance ⇒ Resin burning, or foreign substance contamination during manufacturing - Other information ⇒ None in particular ■ Results From the IR spectrum results of the normal and abnormal parts, it was determined that the peak of the plasticizer found in the normal part was not detected in the foreign substance part. The foreign substance part is believed to be due to poor mixing of the raw material resin.

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