This document stipulates the terms, definitions and symbols, model specifications and parameters, basic requirements, technical requirements, inspection conditions and methods, inspection rules, signs, packaging and random documents, quality commitment, etc. of the hydraulic universal testing machine. This document applies to electro-hydraulic servo universal testing machines, digital display hydraulic universal testing machines, horizontal hydraulic tensile testing machines, etc. (hereinafter referred to as testing machines) for testing the mechanical properties of metallic or non-metallic materials.