Many products are used in critical applications where a failure could result in extensive damage or injury. Some examples are manufactured fasteners and parts that have a vital role in maintaining the safety of aircraft, bridges, vehicles, nuclear reactors, military equipment and medical implants. In addition, many jurisdictions have adopted legislation restricting the use of hazardous materials.
In cases like these, governments and regulatory bodies set compliance requirements that must be met by manufacturers. Companies must adhere to these standards, which generally specify test procedures, to prove compliance.
The quality of material going into a manufactured product is as important as the reliability of the production process. Materials testing helps us to understand and quantify whether a specific material or treatment is suitable for a particular application.
Not only is testing commonly relied on for material selection and choosing a reliable supplier, but it is also frequently used as a verification process to be sure that material received from a new supplier is what was ordered. Material Testing may include methods that yield information about the structure or mechanical properties of the material. It may also make sense to verify the composition or elemental content of the material with an instrumental or classical wet chemical analysis technique.