Durability test

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A shelf life test is a test that examines shelf life.

properties

Durability tests are mainly used in the industrial production of goods. They are used for quality assurance . This is to ensure the specifications of a product over a certain period of time. Depending on the area of ​​application, durability tests measure different aspects of durability such as stability against mechanical stress (sometimes also referred to as stress test ) or durability against decomposition .

In most cases, the durability test is carried out under increased stress in order to be able to observe aging processes in a shorter period of time than they naturally occur ("accelerated durability testing"). A reduction in durability due to weathering is carried out at increased temperature and relative humidity in a weathering chamber .

In pharmacy , the shelf life test is used to determine the storage conditions and the expiry date of a drug. In addition to the influence of temperature and relative humidity, exposure to light , oxygen and non-neutral pH values ​​are also examined. In food microbiology , shelf life tests are used to determine the microbiological spoilage and thus the best-before date of a food . Similarly cosmetics tested for microbial spoilage out.

Individual evidence

  1. Lev M. Klyatis: Accelerated Reliability and Durability Testing Technology. John Wiley & Sons, Hoboken, NJ 2012, ISBN 978-0-470-45465-7 .
  2. ^ Robert J. Herling: Durability Testing of Nonmetallic Materials. ASTM International, W. Conshohocken, PA. 1996, ISBN 0-8031-2407-4 , doi: 10.1520 / STP1294-EB .
  3. International Council for Harmonization of Technical Requirements for Pharmaceuticals for Human Use: ICH quality guidelines , accessed on January 28, 2018.
  4. Claus-Dieter Herzfeldt: Basics of the drug form theory. Springer-Verlag, Berlin / Heidelberg 2013, ISBN 978-3-642-58448-0 , urn : nbn: de: 1111-20110917462 , p. 535.