STANDARDS

Standards and verification regulations

GB/T test methods, JJG verification regulations and ISO/ASTM international standards for hardness, metallography, dimensional metrology and environmental testing — 44 entries grouped by product line.

All 硬度计17 试验机8 金相制样4 显微镜6 几何量4 环境试验4 分析仪器4

GB/TNational standard8 项

Standard	Title	Scope
GB/T 2611	Testing machines — General technical requirements	产品标准	Products
GB/T 16491	Electronic universal testing machines	产品标准	Products
GB/T 3159	Hydraulic universal testing machines	产品标准	Products
GB/T 3808	Verification of pendulum-type impact testing machines	产品标准	Products
GB/T 16825.1	Metallic materials — Calibration and verification of static uniaxial testing machines	检定依据	Products
GB/T 1040.1	Plastics — Determination of tensile properties — Part 1: General principles	试验方法	Products
GB/T 228.1	Metallic materials — Tensile testing — Part 1: Method of test at room temperature	试验方法	Products
GB/T 229	Metallic materials — Charpy pendulum impact test method	试验方法	Products

How to use

Always refer to the currently valid edition. Numbers here omit the year; state the edition year in purchase and acceptance documents.
JJG are verification regulations used for annual metrology inspection; GB/T are test-method or product standards used for acceptance and test reports.
Export projects often require ISO 6507/6508 together with ASTM E18/E384; matching calibration certificates ship with the machine.