Accelerated Aging Tests

The reliability of medical devices and healthcare products must be ensured not only during manufacturing but also throughout the product's entire lifecycle. Particularly for extended use, storage, or transport, accelerated aging tests are performed to evaluate the product's durability and performance. The most common and recognized standard for these tests is ASTM F1980.

What is an Accelerated Aging Test?

An accelerated aging test simulates the long-term effects a product experiences under specific environmental conditions, compressed into a short period under laboratory conditions. This method rapidly assesses the following product characteristics:

• Durability
• Resistance
• Material Stability
• Packaging Integrity

By controllably increasing stress factors such as high temperatures, humidity, light, and similar elements, the physical and chemical changes that the product will exhibit over years are predicted.

By controllably increasing stress factors such as high temperatures, humidity, and light, the physical and chemical changes a product undergoes over many years are predicted.

What is the ASTM F1980 Standard?

ASTM F1980 is an internationally recognized standard that specifies the procedures for conducting accelerated aging tests for medical devices and sterile-packaged products.

According to this standard, the stability of sterile or non-sterile medical products is tested under controlled temperature conditions. Based on the test results, the product's projected shelf life is calculated, and its long-term durability is confirmed prior to market launch.

Tests conducted in accordance with ASTM F1980 also comply with ISO 11607 and other regulations pertaining to medical devices.

ASTM F1980 and Test Methods

In accordance with ASTM F1980, accelerated aging tests typically employ the following methods:

• Application of High Temperatures: The product is stored in a controlled environment at a specified temperature (e.g., 55 °C, 60 °C, or 70 °C). This temperature value is determined based on the material properties and intended use of the product.
• Use of the Arrhenius Equation: Considering the accelerating effect of temperature on chemical reactions, the Arrhenius equation is utilized to calculate the product's projected shelf life.
• Physical and Chemical Analyses: At the conclusion of the test duration, the product is examined for physical alterations, color changes, material brittleness, or chemical structural modifications.
• Packaging Integrity Tests: For sterile medical devices, the structural integrity, seal strength, and sterility of the packaging are evaluated.