Accelerated Shelf Life Testing Formula

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.

Accelerated shelf life testing formula.

The accelerated aging process is based on the relationship of temperature and reaction rate where an increase in temperature increases the reaction rate. In real time stability testing a product is stored at recommended storage conditions and monitored until it fails product specifications. Reference astm f1980 16 begin equation text accelerated aging time a a t frac text desired real time r t q 10 scriptsize left left t a a t r t right 10 right end equation. Values above 60 c are not recommended.

Accelerated aging time calculator astm f1980 07. Typically a q10 value of 2 is used as an initial shelf life estimate but this may not represent the actual acceleration factor of a specific food product. It is recommended that accelerated shelf life studies be accompanied by a shelf life study conducted under normal storage conditions in order to determine the actual q10 value. For example storage at a higher temperature can result in a prediction in say.

Shelf life to be simulated days days. In accelerated stability testing a product is stored at elevated stress conditions. Shelf life is commonly estimated using the results data generated from both real time and accelerated shelf life testing. 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.

Q10 value can be changed however default is q10 2 0 we recommend holding this constant. Storage temperature to be simulated c typical values are between 20 c and 25 c c. Accelerated aging temperature c typical values are 50 c 55 c and 60 c. Type desired taa trt values.

It is used to simulate real shelf life aging and is conducted to validate shelf life claims and document expiration dates. By analyzing the product s response to such tests engineers can make predictions about the service. 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.