Tag: ICH Q1B light calibration

Difference Between Visible Light and UV Calibration in Photostability Studies

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Photostability testing in pharmaceutical studies involves exposing drug products to controlled light sources to evaluate their stability. ICH Q1B mandates exposure to both visible light and ultraviolet (UV) light. But how exactly do visible light calibration and UV calibration differ? This tutorial explains the technical and regulatory distinctions between the two, and how to ensure…

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Equipment and Calibration

Step-by-Step Calibration Process for Light Intensity Monitoring Equipment

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In pharmaceutical stability testing, particularly under ICH Q1B guidelines, accurate light exposure measurement is essential to assess the photostability of drug products. This makes light intensity monitoring equipment such as lux meters and photometers critical tools in the lab. However, without proper calibration, these instruments can lead to misleading data and potential regulatory non-compliance. This…

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Equipment and Calibration