Real Time = Test Time / AF
From: | To: |
Accelerated aging calculation converts test time under accelerated conditions to equivalent real time using an acceleration factor (AF). This is commonly used in product testing and shelf life studies to predict long-term performance in a shorter timeframe.
The calculator uses the formula:
Where:
Explanation: The acceleration factor represents how much faster aging occurs under test conditions compared to normal conditions.
Details: Accelerated aging testing is crucial for predicting product shelf life, material degradation, and long-term performance without waiting for actual time to pass. It's widely used in pharmaceuticals, medical devices, electronics, and consumer products.
Tips: Enter test time in days and the acceleration factor. The calculator will provide equivalent real time in both days and months (based on 30.44 days per month average).
Q1: How is the acceleration factor determined?
A: Acceleration factors are typically derived from Arrhenius equation for temperature acceleration or other relevant models based on the specific aging mechanism.
Q2: What's a typical acceleration factor range?
A: AF values vary widely depending on test conditions but commonly range from 2-50 for temperature acceleration tests.
Q3: Can this calculator be used for any product?
A: The basic calculation applies to any accelerated aging test, but specific validation may be required for different materials and products.
Q4: Why convert to months?
A: Months are a common unit for shelf life and expiration dating, making results more practical for real-world applications.
Q5: Are there limitations to accelerated aging predictions?
A: Yes, predictions assume the acceleration model is valid and that the same degradation mechanisms occur at both accelerated and real-time conditions.