GB/T 39973-2021.Implementation guidance for energy management systems in textile industry. 1范围 GB/T 39973提供了纺织行业中生产企业(以下简称“企业”)建立、实施、保持和改进其能源管理体系的系统性指

GB/T 22683-2021.Methods used to designate model of controls for household and similar use. 1范围 GB/T 22683规定了家用和类似用途控制器(包括智能控制器和非智能控制器)产品分类及型号编制方法。 GB/

GB/T 17651.1-2021.Measurement of smoke density of cables or optical fiber cables burning under defined conditions-Part 1: Test apparatus. 1范围 GB/T 176

GB/T 39969-2021.Test method of ventilation and rain resistance performance for ventilation louvers of building. GB/T 39969规定了建筑用通风百叶窗通风及防雨性能检测方法的术语和定义

GB/T 40077-2021.Reciprocating positive displacement pumps and pump units-Technical requirements. 1范围 GB/T 40077规定了有关往复式容积泵和泵装置的技术要求,未对其安全性和试验做出规定。 GB/

GB/T 6165-2021.Test method of the performance of high efficiency particulate air filter-Efficiency and resistance. 1范围 GB/T 6165规定了高效、超高效滤料及过滤器效率和阻力检测

GB/T 39998-2021.Paper, board and paper products-Determination of alkylphenol polyethoxylates-HPLC-MS method. 1范围 GB/T 39998规定了纸、纸板和纸制品中烷基苯酚聚氧乙烯醚类含量的测定

GB/T 40016-2021.General metadata for fundamental part and component. 1范围 GB/T 40016规定了基础零部件的通用元数据组成及其描述方法。 GB/T 40016适用于基础零部件产供销信息的描述与共享。 2规范性引用文件 下列文

GB/T 39982-2021.Water lubricated journal bearings-Test methods of load carrying capacity. 1范围 GB/T 39982给出了完全浸水条件下动压润滑状态径向滑动轴承承载能力测试方法。 GB/T 39982适用于直

GB/T 3480.3-2021.Calculation of load capacity of spur and helical gears-Part 3 :Calculation of tooth bending strength. 1范围 GB/T 3480.3考虑了所有由齿轮传递的载荷所引起

GB/T 9790-2021.Metallic materials-Vickers and Knoop microhardness tests of metallic and other inorganic coatings. 1范围 GB/T 9790规定了金属及其他无机覆盖层的维氏和努氏显微硬度

GB/T 24596-2021.Ductile iron pipes and fittings-Polyurethane coatings. 1范围 GB/T 24596规定了球墨铸铁管和管件内外表面聚氨酯涂层的技术要求、试验方法和检验规则。 GB/T 24596适用于输送温度不超过50°C、符合G