GB/T 39865-2021.Method for measuring refractive index of uniaxial optical crystals.1范围GB/T 39865规定了单轴晶光学晶体折射率测量方法的环境要求测量原理与方...
GB/T 15566.20-2021.Public information guidance systems- Setting principles and requirements-Part 20: Urban area.1范围GB/T 15566的本部分界定了城市区域公共信息导向系...
GB/T 39933-2021.Rotational moulding一Test method for low temperature impact.1范围GB/T 39933规定了滚塑成型低温冲击试验的两种方法:通过法(A法)和梯度法(B法...
GB/T 39935-2021.Plastics-Film and sheeting-Determination of blocking resistance.1范围GB/T 39935规定了采用定性分析和定量分析来评估软质塑料薄膜和片材在指定...
GB/T 39779-2021.Design guidelines for distributed energy system of combined cooling,heating and power.1范围GB/T 39779规定了分布式冷热电能源系统设计所涉及的总则、...
GB/T 39863-2021.Alumina ceramic substrate for copper clad laminate.1范围GB/T 39863规定了覆铜板用氧化铝陶瓷基片的技术要求、检测方法、检验规则、标志、...
GB/T 10001.5-2021.Public information graphical symbols-Part 5: Symbols for shopping.1范围GB/T 10001的本部分界定了购物和相关服务方面的公共信息图形符号(以下...
GB/T 39937-2021.Plastics- Extruded sheets of polypropylene (PP)-Requirements and test methods.1范围GB/T 39937规定了不含填料和增强材料的聚丙烯均聚物(PP-H)和聚丙...
GB/T 28004.2-2021.Disposable diapers-Part 2 : Disposable diapers for adult.1范围GB/T 28004的本部分规定了成人用纸尿裤、纸尿片、纸尿垫(护理垫)的产品分类、...
GB/T 10001.7-2021.Public information graphical symbols-Part 7: Symbols for office and teaching.1范围GB/T 10001的本部分界定了办公教学方面的公共信息图形符号(以下...
