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China GB Standards List

 GB/T 44119-2024  
Measurement method for antenna coefficient of radiated interference 1m method
辐射骚扰1m法天线系数测量方法
 GB/T 43881-2024  
Test method for thermal expansion coefficient of low expansion glass line - laser interferometry
低膨胀玻璃线热膨胀系数试验方法-激光干涉法
 GB/T 43891-2024  
Non-metallic chemical equipment - Test method for heat transfer coefficient and flow resistance performance of impermeable graphite heat exchangers
非金属化工设备-不透性石墨换热器传热系数和流阻性能测试方法
 GB/T 42657-2023  
Test method for infrared refractive index temperature coefficient of infrared optical glass - vertical incidence method
红外光学玻璃红外折射率温度系数测试方法 垂直入射法
 GB/T 5758-2023  
Method for determination of particle size, effective particle size and uniformity coefficient of ion exchange resin
离子交换树脂粒度、有效粒径和均一系数的测定方法
 GB/T 21228.2-2023  
Acoustics - Surface sound scattering properties - Part 2: Free-field directional diffusion coefficient measurement
声学 表面声散射特性 第2部分：自由场方向性扩散系数测量
 GB/T 42272-2022  
Test method for chloride ion diffusion coefficient of cement mortar
水泥胶砂氯离子扩散系数检测方法
 GB/T 32561.4-2022  
Infrared Optical Chalcogenide Glass Test Method Part 4: Optical Absorption coefficient
红外光学硫系玻璃测试方法 第4部分：光吸收系数
 GB/T 40116-2021  
Foil bearings - Performance of hydrodynamic gas journal bearings - Testing of static load capacity, friction coefficient and lifetime
箔片轴承 气体动压径向轴承性能 静态承载能力、摩擦因数和寿命测试
 GB/T 9966.13-2021  
Test methods for natural stone—Part 13:Determination of water absorption coefficient by capillarity
天然石材试验方法 第13部分：毛细吸水系数的测定
 GB/T 9966.16-2021  
Test methods for natural stone- Part 16:Determination of linear thermal expansion coefficient
天然石材试验方法 第16部分：线性热膨胀系数的测定
 GB/T 10006-2021  
Plastics—Film and sheeting—Determination of the coefficients of friction
塑料 薄膜和薄片 摩擦系数的测定
 GB/T 5095.2507-2021  
Electromechanical components for electronic equipment—Basic testing procedures and measuring methods—Part 25-7: Test 25g: Impedance, reflection coefficient, and voltage standing wave ratio (VSWR)
电子设备用机电元件 基本试验规程及测量方法 第25-7部分：试验25g：阻抗、反射系数和电压驻波比（VSWR）
 GB/T 39539-2020  
Technical requirements for determination of gas diffusion coefficient in shale reservoir
页岩储层气体扩散系数的测定技术要求
 GB/T 7991.7-2019  
Test method of viterous and porcelain enamels—Part 7：Determination of coefficient of mean lincar thermal expansion
搪玻璃层试验方法 第7部分：平均线热膨胀系数的测定
 GB/T 7991.7-2019  
Test method of viterous and porcelain enamels—Part 7：Determination of coefficient of mean lincar thermal expansion
搪玻璃层试验方法 第7部分：平均线热膨胀系数的测定
 GB/T 10339-2018  
Paper, board and pulp—Determination of light scattering and absorption coefficients(Kubelka-Munk method)
纸、纸板和纸浆-光散射和光吸收系数的测定（Kubelka-Munk法）
 GB/T 36800.2-2018  
Plastics—Thermomechanical analysis(TMA)—Part 2: Determination of coefficient of linear thermal expansion and glass transition temperature
塑料 热机械分析法(TMA) 第2部分：线性热膨胀系数和玻璃化转变温度的测定
 GB/T 11313.201-2018  
Radio-frequency connectors—Part 201:Electrical test methods—Reflection coefficient and voltage standing wave ratio
射频连接器 第201部分：电气试验方法 反射系数和电压驻波比
 GB/T 36079-2018  
Acoustics—Procedures for determination of transmission loss, flow noise and total pressure loss coefficient for arrayed element dissipative silencers—Equivalent measurement
声学 单元并排式阻性消声器传声损失、气流再生噪声和全压损失系数的测定 等效法
 GB/T 37255-2018  
Test method for pyroelectric coefficient of materials under DC bias field
偏置电场下材料热释电系数测试方法
 GB/T 34342-2017  
Test method for heat transfer coefficient of building envelope
围护结构传热系数检测方法
 GB/T 34478-2017  
Determination of anti-slip coefficient at bolted connect steel plates’ surfaces
钢板栓接面抗滑移系数的测定
 GB/T 34183-2017  
Thermal insulating products for building equipment and industrial installations—Determination of the coefficient of thermal expansion
建筑设备及工业装置用绝热制品 热膨胀系数的测定
 GB/T 33216-2016  
Steel open die forgings on hammer—Classification of complexity and equivalent coefficient
锤上钢质自由锻件 复杂程度分类及折合系数
 GB/T 33205-2016  
Light conveyor belts—Determination of the coefficient of friction
轻型输送带 摩擦系数的测定
 GB/T 3074.4-2016  
Method for the determination of the coefficient of thermal expansion of graphite electrodes
石墨电极热膨胀系数（CTE）测定方法
 GB/T 3810.5-2016  
Test methods of ceramic tiles—Part 5: Determination of impact resistance by measurement of coefficient of restitution
陶瓷砖试验方法 第5部分：用恢复系数确定砖的抗冲击性
 GB/T 32523-2016  
Acoustics—Measurement of sound pressure reflection coefficient, sound pressure transmission coefficient and absorption coefficient for underwater acoustical material sample—Travelling wave tube method
声学 水声材料样品声压反射系数、声压透射系数和吸声系数的测量 行波管法
 GB/T 16920-2015  
Glass—Determination of coefficient of mean linear thermal expansion
玻璃 平均线热膨胀系数的测定
 GB/T 11297.8-2015  
Test method for pyroelectric coefficient of pyroelectric materials
热释电材料热释电系数的测试方法
 GB/T 31967.1-2015  
Test method for physical property of rare earth permanent magnetic materials—Part 1：Determination of temperature coefficient of magnetic flux
稀土永磁材料物理性能测试方法 第1部分：磁通温度特性的测定
 GB/T 5594.3-2015  
Test methods for properties of structure ceramic used in electronic components and device—Part 3: Test method for mean coefficient of linear expansion
电子元器件结构陶瓷材料性能测试方法 第3部分：平均线膨胀系数测试方法
 GB/T 30832-2014  
Valves―Test method of flow coefficient and flow resistance coefficient
阀门 流量系数和流阻系数试验方法
 GB/T 30592-2014  
Test method for solar heat gain coefficient of transparent envelope
透光围护结构太阳得热系数检测方法
 GB/T 30086-2013  
Determination of axial coefficient of linear expansion of plastics pipes for water supply
给水塑料管道轴向线膨胀系数试验方法
 GB/T 29882-2013  
Testing method for classification of hazardous materials - Partition coefficient of 1-octanol/water
杂项危险物质和物品分类试验方法 正辛醇/水分配系数
 GB/T 28194-2011  
Glass - Double liner method for determination thermal coefficient expansion
玻璃 双线法线热膨胀系数的测定
 GB/T 27860-2011  
Chemicals - Estimation of the adsorption coefficient (Koc) on soil and on sewage sludge using high performance liquid chromatography (HPLC)
化学品 高效液相色谱法估算土壤和污泥的吸附系数
 GB/T 27661-2011  
Test methods for single-pass loss coefficient of laser robs
激光棒单程损耗系数的测量方法
 GB/T 14369-2011  
Acoustics - Measurement methods of insertion loss，echo reduction and sound absorption coefficient for underwater acoustical material samples
声学 水声材料样品插入损失、回声降低和吸声系数的测量方法
 GB/T 26638-2011  
Classification of complexity and equivalent coefficient of open die forgings on hydraulic press
液压机上钢质自由锻件 复杂程度分类及折合系数
 GB/T 7962.1-2010  
Test methods of colourless optical glass - Part 1: Refractive index and coefficient of dispersion
无色光学玻璃测试方法 第1部分：折射率和色散系数
 GB/T 7962.9-2010  
Test methods of colourless optical glass - Part 9: coefficient of optical absorption
无色光学玻璃测试方法 第9部分：光吸收系数
 GB/T 7962.4-2010  
Test methods of colourless optical glass - Part 4: Temperature coefficient of refractive index
无色光学玻璃测试方法 第4部分：折射率温度系数
 GB/T 7962.16-2010  
Test methods of colourless optical glass - Part 16: Linear thermal expansion coefficient，transformation temperature and yield point temperature
无色光学玻璃测试方法 第16部分：线膨胀系数、转变温度和弛垂温度
 GB/T 23561.12-2010  
Methods for determining the physical and mechanical properties of coal and rock - Part 12: Method for determining coal hardiness coefficient
煤和岩石物理力学性质测定方法 第12部分：煤的坚固性系数测定方法
 GB/T 25144-2010  
Determination of coefficient of mean linear thermal expansion for vitreous and porcelain enamels
搪玻璃釉平均线热膨胀系数的测定方法
 GB/T 24811.2-2009  
Cranes and lifting appliances - Selection of wire ropes - Part 2: Mobile cranes - coefficient of utilization
起重机和起重机械 钢丝绳选择 第2部分：流动式起重机 利用系数
 GB/T 24609-2009  
Rolling bearings - Thermal speed rating - Calculation and coefficients
滚动轴承 额定热转速 计算方法和系数

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