GB/T 3906-2020.Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including 40.5 kV. 1范围 GB/T

GB/T 38722-2020.Surface active agents-Determination of interfacial tension-Drawing up liquid films. 1范围 GB/T 38722规定了用拉起液膜法测定表面活性剂界面张力的试验方法。 GB/T 3872

GB/T 11989-2020.Surface active agents-Test methods of technical sodium alkylarylsulphonates (excluding benzene derivatives). 1范围 GB/T 11989规定了工业烷基芳基磺酸

GB/T 11989-2020.Surface active agents-Test methods of technical sodium alkylarylsulphonates (excluding benzene derivatives). 1范围 GB/T 11989规定了工业烷基芳基磺酸

GB/T 38763-2020.Permanent magnetic couplings-General technical specifications. 1范围 GB/T 38763规定了永磁联轴器的术语和定义、分类和标识、型号与标记、基本参数、技术要求、试验方法、检验规则、标志、包装和贮存等。

GB/T 3090-2020.Seamless small diameter stainless steel tubes. 1范围 GB/T 3090规定了不锈钢小直径无缝钢管的分类、订货内容、尺寸、外形、重量及允许偏差、技术要求、试验方法、检验规则、包装、标志及质量证明书。 GB/T 3090适用

GB/T 51409-2020.Technical standard for integrated supervision and control system engineering of data center. 1总则 1.0.1 为规范数据中心综合监控系统工程的设计、施工与验收，保证系统安全

GB/T 38693-2020.Safety and control devices for gas burners and gas-burning appliances-Particular requirements-Thermoelectric flame supervision control

GB/T 38732-2020.Surface active agents-Test methods of technical alkane sulfonates. 1范围 GB/T 38732规定了表面活性剂工业烷基磺酸盐的pH值、含水量、游离碱或游离酸、石油醚可萃取物、总烷烃磺酸盐、烷烃单磺酸盐

GB/T 38730-2020.Determination of water dispersing power of surfactants in dry cleaning solvents. 1范围 GB/T 38730规定了水增溶力和水乳化力的测定方法 GB/T 38730适用于干洗洗涤剂或在洗

GB/T 38642-2020.Industrial robot life cycle risk assessment methods. 1范围 GB/T 38642规定了工业机器人生命周期风险评价方法的基本原则、风险评价程序及文件要求,并给出了工业机器人危险源识别、AGV危险源识别及风险评价和风险

GB/T 20975.10-2020.Methods for chemical analysis of aluminium and aluminium alloys-Part 10: Determination of tin content. 1范围 GB/T 20975的本部分规定了苯基荧光酮分光