Aging resistance

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With aging resistance that is characteristic of a material or a device referred to alter its physical properties over a longer period.

Test procedure

Testing the resistance to aging under normal ambient conditions is usually not directly possible because it would take too long. For this reason, methods are mostly used that cause faster (artificial) aging , especially:

  • high temperature,
  • Exposure to UV light ,
  • Influence of chemicals (oxygen, ozone) or
  • mechanical stress.

Sometimes the term "accelerated aging", a translation of the English accelerated aging , is used for this. Such procedures are often specified in standards in order to achieve uniform test procedures and thus comparable information on the aging resistance of products from different manufacturers.

Examples of standards for testing aging

  • DIN 6738, service life classes of paper and cardboard, and
  • DIN ISO 9706, a "stricter" standard for aging-resistant paper (particularly important for long-term archiving)
  • DIN 51554, aging resistance of mineral oils
  • ISO 188, Elastomers or Thermoplastic Elastomers - Test to determine accelerated aging and heat resistance
  • ISO 11561, aging of thermal insulation materials
  • ISO 2578, Plastics - Determination of temperature - time limits for prolonged exposure to heat

See also

Individual evidence

  1. ^ Fritz Röthemeyer, Franz Sommer: Kautschuktechnologie , Carl Hanser Verlag Munich Vienna, 2nd edition, 2006, pp. 521-523, ISBN 978-3-446-40480-9 .