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 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 | Aug 8, 2025
Investigation of OOS Results in Analytical Testing 1. What is an OOS Result? An Out-of-Specification (OOS) result is any analytical test result that falls outside the established acceptance criteria/specifications outlined in an approved method, regulatory filing, or...
by Dr. Yashashwini Reddy | May 19, 2025
A Systematic Investigation of Out-of-Specification (OOS) Results in Analytical Testing is a structured approach to identify, evaluate, and resolve instances where test results fall outside predefined specifications. This process is vital in pharmaceutical quality...
by Dr. Yashashwini Reddy | Apr 28, 2025
“Factors Contributing to Out-of-Specification Outcomes” refers to the various reasons or elements that can cause a product, process, or system to fall outside the defined limits or specifications. These factors are critical in industries such as...
