Accelerated Shelf Life Testing Formula

Shelf life is commonly estimated using the results data generated from both real time and accelerated shelf life testing.

Accelerated shelf life testing formula.

Type desired taa trt values. Storage temperature to be simulated c typical values are between 20 c and 25 c c. Real time assessment is usually time and resource consuming. Values above 60 c are not recommended.

In real time stability testing a product is stored at recommended storage conditions and monitored until it fails product specifications. For example storage at a higher temperature can result in a prediction in say. Accelerated life testing is the process of testing a product by subjecting it to conditions stress strain temperatures voltage vibration rate pressure etc in excess of its normal service parameters in an effort to uncover faults and potential modes of failure in a short amount of time. It is used to simulate real shelf life aging and is conducted to validate shelf life claims and document expiration dates.

The common and conservative means of the accelerated aging calculation is based on the arrhenius equation which states that a 10 c increase in temperature doubles the rate of chemical reaction. In accelerated stability testing a product is stored at elevated stress conditions. Accelerated aging time calculator astm f1980 07. Accelerated aging temperature c typical values are 50 c 55 c and 60 c.

The food industry has a great need to have a shelf life test in the minimum time possible because of the fierce competition sudden shortage of agricultural inputs opportunity loss and low unit value of the commodity. Type the target shelf life days 2. Q10 value can be changed however default is q10 2 0 we recommend holding this constant. By analyzing the product s response to such tests engineers can make predictions about the service.

Shelf life to be simulated days days. Accelerated shelf life testing aslt kilcast and subramaniam 2000 can be incredibly useful when setting a shelf life for an ambient product as the developer does not need to wait for the whole of the product s shelf life to determine the end of shelf life. The accelerated aging process is based on the relationship of temperature and reaction rate where an increase in temperature increases the reaction rate.