GB/T 40079-2021.Classification system and qualification procedures for fugitive emission type testing of valves.1范围GB/T 40079规定了逸散性介质用阀门的型式试验要求...
GB 50229-2019.Standard for design of fire protection for fossil fuel power plants and substations.1总则1.0.1 为确保火力发电厂和变电站的消防安全,预防火灾或减少...
GB/T 40011-2021.Pilot safety valve for cryogenic fluid service.1范围GB/T 40011规定了低温先导式安全阀(以下简称安全阀)的术语和定义,技术要求,试验方法,检...
GB/T 3093-2021.High-pressure seamless steel tubes for diesel engine.1范围GB/T 3093规定了柴油机用高压无缝钢管的分类与代号、订货内容、尺寸、外形、重量...
GB/T 6232-2021.Tractors and machinery for agriculture and forestry-Wheel-to-hub fixing dimensions.1范围GB/T 6232规定了农林拖拉机和机械车轮在轮毂上安装尺寸。按...
GB/T 7739.4-2021.Methods for chemical analysis of gold concentrates-Part 4: Determination of copper content.1范围GB/T 7739.4规定了金精矿中铜量的测定方法。GB/T 7739....
GB/T 19346.3-2021.Methods of measurement of amorphous and nanocrystalline alloys-Part 3:AC magnetic properties of Fe-based amorphous strip using a single sheet specimen.1范围GB/T ...
GB 24427-2021.Content limitation of mercury，cadmium and lead for zinc anode primary battery.1范围GB 24427规定了已标准化的锌-二氧化锰电池、锌-氧化银电池、锌...
GB/T 21017-2021.Technical specifications for maize drying.1范围GB/T 21017规定了玉米干燥术语和定义、基本要求、干燥技术要求、干燥质量、检验方法、安...
GB/T 25195.4-2021.Cranes- Graphical symbols-Part 4: Jib cranes.1范围GB/T 25195的本部分规定了臂架起重机操作控制装置和其他显示装置的图形符号的总则、颜...
