by Dr. Yashashwini Reddy | Aug 18, 2025
Possible Causes of OOS Results 1. Laboratory Errors Improper sample preparation or dilution Incorrect weighing or pipetting Instrument malfunction or improper calibration Wrong method execution or deviation from SOP Calculation or transcription errors 2....
by Dr. Yashashwini Reddy | Aug 9, 2025
Out of Specification (OOS) Investigation in Pharmaceuticals Definition OOS results are test results that fall outside the pre-established acceptance criteria defined in specifications, procedures, or regulatory filings.They can occur in raw materials, in-process...
