A testing machine, in a broad sense, is an instrument that verifies the quality or performance of a product or material according to the design requirements before it is put into use. It can be seen from the definition that any instrument that verifies quality or performance can be called a testing machine.
The products of the testing machine are constantly innovating, improving and perfecting, and can adapt to the various properties of the testing materials. The testing machine is mainly used to measure the physical properties of materials or products, such as: steel yield strength, tensile strength, impact toughness, etc. The chemical composition used to measure the chemical properties of materials is generally called an analyzer, not a testing machine.