What is EN ISO 17993-2021?

EN ISO 17993-2021, also known as "Plastics—Determination of the Izod impact strength," is an international standard that provides a method for measuring the impact resistance of plastic materials. Izod impact strength refers to the energy required to break a standardized specimen of plastic material under specific conditions.

Izod Impact Strength: A Key Performance Indicator

Izod impact strength is an important mechanical property of plastics. It measures the ability of a material to withstand sudden impact or shock-loading without fracturing. This property is crucial in applications where materials are subjected to dynamic loads, such as automotive components, safety equipment, and consumer products.

How is EN ISO 17993-2021 Applied?

EN ISO 17993-2021 outlines the procedure for conducting the Izod impact test. The test involves placing a notched or unnotched specimen between supports and striking it with a pendulum hammer. The energy absorbed during fracture is recorded and used to calculate the Izod impact strength. The standard specifies different test configurations and defines parameters like specimen thickness, notch size, and test temperature to ensure consistent and accurate results.

Significance of EN ISO 17993-2021

EN ISO 17993-2021 provides uniform guidelines for determining the Izod impact strength of plastics. It facilitates product development, quality control, and comparison of materials from different manufacturers. Compliance with this standard ensures that plastic materials used in critical applications meet specified performance requirements and exhibit the necessary resistance to impact forces.