GB/T 39494-2020.Determination for coating adhesion of rare earth permanent magnetic materials for drive motor of new energy vehicle.1范围GB/T 39494规定了新能源汽车驱动电机...
GB/T 23978-2020.Determination of chloride in water-soluble dyes.1 范围GB/T 23978规定了水溶性染料产品中氯化物的测定方法。GB/T 23978适用于各种水溶性染料产...
GB/T 24164-2020.Determination of chlorinated benzenes in dye products.1范围GB/T 24164规定了采用气相色谱-质谱法(GC/MS)测定染料产品中12种氯化苯残留量的方法...
GB/T 39252-2020.Additive manufacturing-Specification for powder bed fusion process of metal materials.1范围GB/T 39252规定了金属材料粉末床熔融工艺的一般要求、工艺...
GB/T 39412-2020.Information security technology- Audit specification of code security.1范围GB/T 39412规定了代码安全的审计过程以及安全功能缺陷、代码实现安全...
GB/T 24981.2-2020.Test methods of rare earth long afterglow phosphors-Part 2 : Determination of afterglow brightness.1范围GB/T 24981的本部分规定了稀土长余辉荧光粉余辉...
GB/T 20801.4-2020.Pressure piping code-Industrial piping-Part 4 : Fabrication and assembly.1范围GB/T 20801的本部分规定了压力管道制作与安装的基本要求。这些基...
GB/T 20801.5-2020.Pressure piping code-Industrial piping-Part 5: Inspection and testing.1范围GB/T 20801的本部分规定了压力管道检验、检查和试验的基本安全要求...
GB/T 20801.6-2020.Pressure piping code-Industrial piping一Part 6 :Safeguarding.1范围GB/T 20801的本部分规定了压力管道系统的安全泄放装置、阻火器、火灾紧急...
GB/T 26901-2020.Code of practice for plums storage.1范围GB/T 26901规定了李果实的采收、果品质量要求、分选与包装、贮藏前准备、预冷与入库、贮藏方式...
