GB/T 19206-2020.Requirements and test methods for organic sulfur compounds used as odorants for natural gas.1范围GB/T 19206规定了天然气用有机硫化合物加臭剂的要求和...
GB/T 39476-2020.Testing method of energy efficiency for drug stability test chambers.1范围GB/T 39476规定了药品稳定性试验箱(以下简称试验箱)能效测试的术语和定...
GB/T 39516-2020.Micro nano standard samples( geometric).1范围GB/T 39516规定了微纳米标准样板(几何量)的术语和定义、型式与基本参数、要求、检查条件、...
GB/T 229-2020.Metallic materials-Charpy pendulum impact test method.1范围GB/T 229规定了金属材料在冲击试验中测定冲击试样(V型.U型缺口和无缺口试样)吸收能...
GB/T 12688.10-2020.Test method of styrene for industrial use-Part 10 : Determination of oxygenates-Gas chromatography.1范围GB/T 12688的本部分规定了工业用苯乙烯中苯甲...
GB/T 6931.3-2020.Belt drives-Vocabulary-Part 3 :Synchronous belt drives.1范围GB/T 6931的本部分界定了同步带、带轮及齿槽加工刀具的术语、定义及符号。GB/...
GB/T 39011.1-2020.Mechanical pencils for technical drawings-Part 1:Classification , dimensions，performance requirements and testing.1范围GB/T 39011.1规定了技术制图用活动...
GB/T 39011.2-2020.Mechanical pencils for technical drawings-Part 2: Black leads-Classification and dimensions.1范围GB/T39011的本部分规定了活动铅笔黑铅芯的分类和尺...
GB/T 39011.3-2020.Mechanical pencils for technical drawings-Part 3: Black leads-Bending strengths of HB leads.1范围GB/T 39011.3规定了技术制图活动铅笔用硬度等级为H...
GB/T 23264-2020.Brake lining assembly for electric power assist bicycles.1范围GB/T 23264规定了电动自行车用制动衬片总成的术语和定义、分类、要求、试验方...
