by Dr. Yashashwini Reddy | Aug 8, 2025
Possible Causes of Out of Specification (OOS) Results OOS results occur when the test results fall outside the predefined acceptance criteria or specification limits. Causes can be grouped into three main categories: 1. Laboratory Errors Instrumental issues:...
by Dr. Yashashwini Reddy | Nov 28, 2024
Out of Specifications (OOS) in Pharmaceuticals Out of Specification (OOS) results occur when the test results of a pharmaceutical product fall outside the predefined acceptance criteria specified in regulatory guidelines or quality standards. These deviations are...
