GB/T 38844-2020.Smart factory-General specification for time synchronization ,time management and test in industry automation system.1范围GB/T 38844规定了面向智能工厂、工...
GB/T 38944-2020.Non-destructive testing-Testing method of small-angle neutron scattering.1范围GB/T 38944规定了基于反应堆中子源的中子小角散射试验检测样品内部...
GB/T 38952-2020.Non-destructive testing-Testing method for measuring residual stress using bulk wave.1范围GB/T 38952规定了残余应力超声体波检测的术语和定义、人员...
GB/T 38912-2020.Test method for closed-end burst of zirconium tubes at room temperature.1范围GB/T 38912规定了锆管在室温10°C~35°C条件下闭端内压爆破试验的方法。...
GB/T 38913-2020.Test methods for hydride orientation fraction of nuclear grade zirconium and zirconium alloy tubes.1范围GB/T 38913规定了核级锆及锆合金管材氢化物取向...
GB/T 38812.3-2020.Direct reduced iron-Determination of silicon, manganese，phosphorus , vanadium,titanium, copper，aluminum, arsenic ，magnesium, calcium, potassium and sodium co...
GB/T 20671.6-2020.Classification system and test methods for nonmetallic gasket materials-Part 6: Standard test method for adhesion of gasket materials to metal surfaces.1范围GB/T...
GB/T 20671.5-2020.Classification system and test methods for nonmetallic gasket materials-Part 5 : Standard test method for creep relaxation of gasket materials.1范围GB/T 20671的本...
GB/T 38812.2-2020.Direct reduced iron-Determination of metallic iron content-The potassium dichromate titrimetric method after decomposition of sample by ferric chloride.1范围GB/T...
GB/T 20671.1-2020.Classification system and test methods for nonmetallic gasket materials-Part 1 :Standard classification system for nonmetallic gasket materials.1范围GB/T 20671的本...
