Compliance work

Overall migration Sensory analysis

Material analysis

Mechanical properties

permeation

PPWR/ Recycling

Accelerated Aging

Calculate the duration of storage tests

Work out how long a storage test at elevated temperature needs to run in order to reflect a real storage period in the laboratory as closely as possible. The calculation is based on the Arrhenius relationship with Q10 = 2 (standard requirement).

Free tool

Enter your values

Enter the real storage temperature, the duration to be simulated and the planned test temperature – the acceleration factor and the test duration appear instantly.

Result
Enter all three values to see the result.

Note:
Please note that this is only a rough guideline value and that we give no warranty for this free service. The result should always be checked for each individual case.

How the calculation works

According to the Arrhenius relationship, aging processes speed up as temperature rises. With Q10 = 2, the reaction rate is assumed to double for every 10 °C increase in temperature.

AAF = Q10(TAA − TRT) / 10

Acceleration factor from Q10 and the temperature difference

Test duration = duration to be simulated / AAF  ·  TAA = test temperature, TRT = real storage temperature

Worked examples

Example 1

365 days at 23 °C

≙ 39.7 days at 55 °C (AAF 9.19)

Example 2

365 days at 23 °C

≙ 79.4 days at 45 °C (AAF 4.59)

Example 3

730 days at 25 °C

≙ 129 days at 50 °C (AAF 5.66)

Putting accelerated storage tests into perspective

We recommend verifying key results from accelerated storage tests with storage tests under real conditions. The elevated temperature can lead to aging effects being overestimated; because of the shortened test duration, underestimates are also possible. Nevertheless, accelerated storage tests are indispensable for estimating time-dependent aging effects and as a basis for risk management decisions.

Storage tests in the laboratory

Accelerated aging at Innoform

We carry out storage tests and accelerated aging in heating or cooling cabinets with controlled temperature, in climate chambers with controlled temperature and relative humidity, and in explosion-proof heating chambers – and then test your materials for the properties that matter to you.

If you have questions about the calculator or about planning your storage test, please get in touch.

To mechanical testing

Your contact person

Dr. Daniel Wachtendorf

+49 441 94986-22
daniel.wachtendorf@innoform.de

Top Tests in This Area

Test Method Search