China method the GB Standards List

China " method the" GB Standards List:

Standard Code	Standard Title	Standard Class	Order
GB/T 21671-2018	Ethernet technology based local area network(LAN) systems acceptance test methods 基于以太网技术的局域网（LAN）系统验收测试方法	China National Standards method the	English PDF
GB/T 22137.2-2018	Valve positioners for industrial process control systems—Part 2: Methods of evaluating the performance of intelligent valve positioners 工业过程控制系统用阀门定位器第2部分：智能阀门定位器性能评定方法	China National Standards method the	English PDF
GB/T 33260.3-2018	Capability of detection—Part 3: Methodology for determination of the critical value for the response variable when no calibration data are used 检出能力第3部分：无校准数据情形响应变量临界值的确定方法	China National Standards method the	English PDF
GB/T 33260.2-2018	Capability of detection—Part 2: Methodology in the linear calibration case 检出能力第2部分：线性校准情形检出限的确定方法	China National Standards method the	English PDF
GB/T 609-2018	Chemical reagent—General method for the determination of total nitrogen 化学试剂总氮量测定通用方法	China National Standards method the	English PDF
GB/T 36383-2018	Treatment and disposal method for the high boiling from vinyl chloride rectification process 氯乙烯精馏过程中高沸物处理处置方法	China National Standards method the	English PDF
GB/T 12690.15-2018	Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides―Part 15: Determination of calcium content 稀土金属及其氧化物中非稀土杂质化学分析方法第15部分：钙量的测定	China National Standards method the	English PDF
GB/T 18655-2018	Vehicles, boats and internal combustion engines—Radio disturbance characteristics—Limits and methods of measurement for the protection of on-board receivers 车辆、船和内燃机无线电骚扰特性用于保护车载接收机的限值和测量方法	China National Standards method the	English PDF
GB/T 33260.5-2018	Capability of detection—Part 5: Methodology in the linear and nonlinear calibration cases 检出能力第5部分：非线性校准情形检出限的确定方法	China National Standards method the	English PDF
GB/T 33260.4-2018	Capability of detection—Part 4: Methodology for comparing the minimum detectable value with a given value 检出能力第4部分：最小可检出值与给定值的比较方法	China National Standards method the	English PDF
GB/Z 36517-2018	Rolling bearings—Methods for calculating the modified reference rating life for universally loaded bearings 滚动轴承一般载荷条件下轴承修正参考额定寿命计算方法	China National Standards method the	English PDF
GB/T 20441.2-2018	Electroacoustics—Measurement microphones—Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique 电声学测量传声器第2部分：采用互易技术对实验室标准传声器声压校准的原级方法	China National Standards method the	English PDF
GB/T 36668.3-2018	Condition monitoring and fault diagnostics of amusement device—Part 3: Infrared thermography monitoring method 游乐设施状态监测与故障诊断第3部分：红外热成像监测方法	China National Standards method the	English PDF
GB/T 36690-2018	Method of determination for 26 elements（copper，nickel，lead，zinc，cadmium，chrome etc.） content in the sludge from industrial waste liquid treatment 工业废液处理污泥中铜、镍、铅、锌、镉、铬等26种元素含量测定方法	China National Standards method the	English PDF
GB/T 36592-2018	Methods for chemical analysis of rhodium—Determination of platinum, ruthenium, iridium, palladium, gold, silver, copper, iron, nickel, aluminum, lead, manganese, magnesium, tin, zinc, silicon contents—Inductively coupled plasma mass spectrometry 铑粉化学分析方法铂、钌、铱、钯、金、银、铜、铁、镍、铝、铅、锰、镁、锡、锌、硅的测定电感耦合等离子体质谱法	China National Standards method the	English PDF
GB/T 7755.1-2018	Rubber,vulcanized or thermoplastic—Determination of permeability to gases—Part 1:Differential-pressure methods 硫化橡胶或热塑性橡胶透气性的测定第1部分：压差法	China National Standards method the	English PDF
GB/T 36799-2018	Determination of the emissions of volatile organic compounds from adhesives—Micro-scale chamber method 胶粘剂挥发性有机化合物释放量的测定微舱法	China National Standards method the	English PDF
GB/T 36803-2018	Determination of the emissions of volatile organic compounds form adhesive—Bag method 胶粘剂挥发性有机化合物释放量的测定袋式法	China National Standards method the	English PDF
GB/T 36593-2018	Method for chemical analysis of iridium powder—Determination of silver, gold, palladium, rhodium, ruthenium, lead, platinum, nickel, copper, iron, tin, zinc, magnesium, manganese, aluminum contents —Inductively coupled plasma atomic emission spectrome 铱粉化学分析方法银、金、钯、铑、钌、铅、铂、镍、铜、铁、锡、锌、镁、锰、铝量的测定电感耦合等离子体原子发射光谱法	China National Standards method the	English PDF
GB/T 4937.201-2018	Semiconductor devices—Mechanical and climatic test methods—Part 20-1: Handling, packing, labelling and shipping of surface-mount devices sensitive to the combined effect of moisture and soldering heat 半导体器件机械和气候试验方法第20-1部分：对潮湿和焊接热综合影响敏感的表面安装器件的操作、包装、标志和运输	China National Standards method the	English PDF
GB/T 4937.20-2018	Semiconductor devices—Mechanical and climatic test methods—Part 20: Resistance of plastic encapsulated SMDs to the combined effect of moisture and soldering heat 半导体器件机械和气候试验方法第20部分：塑封表面安装器件耐潮湿和焊接热综合影响	China National Standards method the	English PDF
GB/T 12690.19-2018	Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 19: Determination of arsenic and mercury contents 稀土金属及其氧化物中非稀土杂质化学分析方法第19部分：砷、汞量的测定	China National Standards method the	English PDF
GB/T 36585-2018	Method of dynamic wind uplift test for external thermal insulation composite systems 外墙外保温系统动态风压试验方法	China National Standards method the	English PDF
GB/T 26857.4-2018	Information technology—Open systems interconnection—Methods for testing and specification(MTS)—The testing and test control notation—Version 3一Part 4: TTCN-3 operational semantics 信息技术开放系统互连测试方法和规范(MTS) 测试和测试控制记法第3版第4部分：TTCN-3操作语义	China National Standards method the	English PDF
GB/T 36700.2-2018	Chemicals—Guidance on hazard classification to the aquatic environment—Part 2: Harmonized classification of method 化学品水生环境危害分类指导第2部分：统一分类方法	China National Standards method the	English PDF
GB/T 35930-2018	Determination of vapor pressure of chemical products—Thermogravimetry method 化工产品饱和蒸气压的测定热重法	China National Standards method the	English PDF
GB/T 35933-2018	Determination for drug residues of toxaphene, synthetic pyrethroid, organophosphorus in greasy wool—Gas chromatography method 含脂毛毒杀芬、拟除虫菊酯、有机磷药物残留量的测定气相色谱法	China National Standards method the	English PDF
GB/T 35935-2018	Measurement of the mean and distribution of animal fibre diameter—Laserscan fibre diameter analysis method 动物毛纤维平均直径与分布试验方法激光扫描纤维直径分析法	China National Standards method the	English PDF
GB/T 35859-2018	Determination of ethylene glycol monoethyl ether insoluble contents in polymer materials for offset printing plates—Filtering method 胶印版材用高聚物中乙二醇单乙醚不溶物含量的测定过滤法	China National Standards method the	English PDF
GB/T 35900.2-2018	Animal influenza detection—Part 2: Method of real-time RT-PCR for the detection of H3 subtype influenza virus 动物流感检测第2部分：H3亚型流感病毒核酸荧光RT-PCR检测方法	China National Standards method the	English PDF
GB/T 20485.16-2018	Methods for the calibration of vibration and shock transducers—Part 16: Calibration by Earth’s gravitation 振动与冲击传感器校准方法第16部分：地球重力法校准	China National Standards method the	English PDF
GB/T 35900.1-2018	Animal influenza detection—Part 1:Method of real-time RT-PCR for the detection of H1 subtype influenza virus 动物流感检测第1部分：H1亚型流感病毒核酸荧光RT-PCR检测方法	China National Standards method the	English PDF
GB/T 35924-2018	Determination of moisture in solid chemical products－Thermogravimetry method 固体化工产品中水分含量的测定热重法	China National Standards method the	English PDF
GB/T 36021-2018	The assessment method of the heavy metal Sb,As,Ba,Se and Cr（Ⅵ）in furniture 家具中重金属锑、砷、钡、硒、六价铬的评定方法	China National Standards method the	English PDF
GB/T 35998-2018	Determination of sucrose, brix and fibre in cane and bagasse—The wet disintegrator method 甘蔗和蔗渣的蔗糖分、锤度及纤维分测定湿式分解法	China National Standards method the	English PDF
GB/T 13772.2-2018	Textiles—Determination of the slippage resistance of yarns at seam in woven fabric—Part 2: Fixed load method 纺织品机织物接缝处纱线抗滑移的测定第2部分：定负荷法	China National Standards method the	English PDF
GB/T 35807-2018	Rubber, vulcanized—Determination of thermal diffusivity—Flash method 硫化橡胶热扩散系数的测定闪光法	China National Standards method the	English PDF
GB/T 35804-2018	Rubber, vulcanized or thermoplastic－Resistance to ozone cracking－Test methods for determining the ozone concentration in laboratory test chambers 硫化橡胶或热塑性橡胶耐臭氧龟裂测定试验箱中臭氧浓度的试验方法	China National Standards method the	English PDF
GB/T 3682.2-2018	Plastics—Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics—Part 2: Method for materials sensitive to time-temperature history and/or moisture 塑料热塑性塑料熔体质量流动速率（MFR）和熔体体积流动速率（MVR）的测定第2部分：对时间-温度历史和（或）湿度敏感的材料的试验方法	China National Standards method the	English PDF
GB/T 35827-2018	General methods on determination of cosmetics—Identification of the emulsion type (w/o or o/w) 化妆品通用检验方法乳化类型(w/o 或o/w)的鉴别	China National Standards method the	English PDF
GB/T 36060-2018	Process control and testing methods on the water-based adhesives using in hardcover book binding production 精装书籍用水基胶黏剂粘接过程控制要求及检验方法	China National Standards method the	English PDF
GB/T 35832-2018	Testing method of the abrasivity value of toothpastes 牙膏磨擦值检测方法	China National Standards method the	English PDF
GB/T 19973.2-2018	Sterilization of medical devices—Microbiological methods—Part 2: Tests of sterility performed in the definition，validation and maintenance of a sterilization process 医疗器械的灭菌微生物学方法第2部分：用于灭菌过程的定义、确认和维护的无菌试验	China National Standards method the	English PDF
GB/T 35825-2018	The method of tea classification by chemical analysis 茶叶化学分类方法	China National Standards method the	English PDF
GB/T 3682.1-2018	Plastics—Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics—Part 1:Standard method 塑料热塑性塑料熔体质量流动速率(MFR)和熔体体积流动速率(MVR)的测定第1部分：标准方法	China National Standards method the	English PDF
GB/T 20485.33-2018	Methods for the calibration of vibration and shock transducers—Part 33: Testing of magnetic field sensitivity 振动与冲击传感器校准方法第33部分：磁灵敏度测试	China National Standards method the	English PDF
GB/T 20485.42-2018	Methods for the calibration of vibration and shock transducers—Part 42: Calibration of seismometers with high accuracy using acceleration of gravity 振动与冲击传感器校准方法第42部分：高精度地震计的重力加速度法校准	China National Standards method the	English PDF
GB/T 35900.3-2018	Animal influenza detection—Part 3: Method of duplex real-time RT-PCR for the detection of H1 and H3 subtype influenza virus 动物流感检测第3部分：H1和H3亚型流感病毒核酸双重荧光RT-PCR检测方法	China National Standards method the	English PDF
GB/T 22319.11-2018	Measurement of quartz crystal unit parameters—Part 11:Standard method for the determination of the load resonance frequency fL and the effective load capacitance CLeff using automatic network analyzer techniques and error correction 石英晶体元件参数的测量第11部分：采用自动网络分析技术和误差校正确定负载谐振频率和有效负载电容的标准方法	China National Standards method the	English PDF
GB/T 36133-2018	Refractory materials—Determination of thermal conductivity (Platinum resistance thermometer method) 耐火材料导热系数试验方法（铂电阻温度计法）	China National Standards method the	English PDF
GB/T 34824-2017	The test method of wind load resistance performance for screens of windows and doors 建筑纱门窗抗风性能检测方法	China National Standards method the	English PDF
GB/T 34898-2017	Micro electromechanical system technology—Test method for the nonlinear vibration of the MEMS resonant sensitive element 微机电系统（MEMS）技术 MEMS谐振敏感元件非线性振动测试方法	China National Standards method the	English PDF
GB/T 22159.5-2017	Acoustics and vibration—Laboratory measurement of vibro-acoustic transfer properties of resilient elements—Part 5: Driving point method for determination of the low-frequency transfer stiffness of resilient supports for translatory motion 声学与振动弹性元件振动-声传递特性实验室测量方法第5部分：弹性支撑件低频平动动刚度的驱动点测量方法	China National Standards method the	English PDF
GB/T 34828-2017	Acoustics—Test methods for the qualification of free-field environments 声学自由场环境评定测试方法	China National Standards method the	English PDF
GB/T 13885-2017	Determination of the contents of calcium, copper, iron, magnesium, manganese, potassium, sodium and zinc in feeds—Method using atomic absorption spectrometry 饲料中钙、铜、铁、镁、锰、钾、钠和锌含量的测定原子吸收光谱法	China National Standards method the	English PDF
GB/T 15777-2017	Method for determination of the modulus of elasticity in compression parallel to grain of wood 木材顺纹抗压弹性模量测定方法	China National Standards method the	English PDF
GB/T 34782-2017	Method for the determination of poplar tree gum in propolis—High performance liquid chromatography 蜂胶中杨树胶的检测方法高效液相色谱法	China National Standards method the	English PDF
GB/T 34738-2017	Method of the real-time PCR for the detection of honey bees sacbrood disease 蜜蜂囊状幼虫病荧光PCR检测方法	China National Standards method the	English PDF
GB/T 34515-2017	Thermal balance test method for spacecraft 航天器热平衡试验方法	China National Standards method the	English PDF
GB/T 34907-2017	Technical specifications and fitness for service evaluation method for thermal well casing under cyclic steam stimulation process 稠油蒸汽热采井套管技术条件与适用性评价方法	China National Standards method the	English PDF
GB/T 34704-2017	Chemical reagent—General method for the determination of aldehyde 化学试剂醛测定通用方法	China National Standards method the	English PDF
GB/T 8117.4-2017	Rules for steam turbine thermal acceptance test—Part 4: Method D—Simplified performance test rules for steam turbine and its thermal cycle 汽轮机热力性能验收试验规程第4部分：方法D 汽轮机及其热力循环简化性能试验	China National Standards method the	English PDF
GB/T 34942-2017	Information security technology—The assessment method for security capability of cloud computing service 信息安全技术云计算服务安全能力评估方法	China National Standards method the	English PDF
GB/T 34522-2017	Thermal vacuum test method for spacecraft 航天器热真空试验方法	China National Standards method the	English PDF
GB/T 34523-2017	Estimating methods for the mass of remaining propellant of spacecraft 航天器剩余推进剂质量的估算方法	China National Standards method the	English PDF
GB 34659-2017	Requirements and test methods relating to the spray-suppression systems of motor vehicles and their trailers 汽车和挂车防飞溅系统性能要求和测量方法	China National Standards method the	English PDF
GB/T 12690.5-2017	Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 5: Determination of cobalt,manganese,lead,nickel,copper,zinc,aluminum,chromium,magnesium,cadmium,vanadium and iron contents 稀土金属及其氧化物中非稀土杂质化学分析方法第5部分：钴、锰、铅、镍、铜、锌、铝、铬、镁、镉、钒、铁量的测定	China National Standards method the	English PDF
GB/T 15076.13-2017	Methods for chemical analysis of tantalum and niobium—Part 13: Determination of nitrogen content—Inert gas fusion thermal conductivity method 钽铌化学分析方法第13部分：氮量的测定惰气熔融热导法	China National Standards method the	English PDF
GB/T 12690.18-2017	Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides— Part 18: Determination of zirconium content 稀土金属及其氧化物中非稀土杂质化学分析方法第18部分：锆量的测定	China National Standards method the	English PDF
GB/T 12690.6-2017	Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 6: Determination of iron content—Kslium thiocyanate, 1,10-Phenanthroline spectrophotometric method 稀土金属及其氧化物中非稀土杂质化学分析方法第6部分：铁量的测定硫氰酸钾、1,10-二氮杂菲分光光度法	China National Standards method the	English PDF
GB/T 11108-2017	Test method for thermal diffusivity of hardmetal 硬质合金热扩散率的测定方法	China National Standards method the	English PDF
GB/T 34437-2017	Test method of the oxygen permeability of the multilayer composite plastics pipe 多层复合塑料管材氧气渗透性能测试方法	China National Standards method the	English PDF
GB/T 34625-2017	Metallic and other inorganic coatings—Electrodeposited gold and gold alloy coatings for electrical, electronic and engineering purposes—Specification and test methods 金属及其他无机覆盖层电气、电子和工程用金和金合金电镀层技术规范和试验方法	China National Standards method the	English PDF
GB/T 34326-2017	Surface chemical analysis—Depth profiling—Methods for ion beam alignment and the associated measurement of current or current density for depth profiling in AES and XPS 表面化学分析深度剖析 AES和XPS深度剖析时离子束对准方法及其束流或束流密度测量方法	China National Standards method the	English PDF
GB/T 4698.28-2017	Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 28：Determination of ruthenium content—Inductively coupled plasma atomic emission spectrometry 海绵钛、钛及钛合金化学分析方法第28部分：钌量的测定电感耦合等离子体原子发射光谱法	China National Standards method the	English PDF
GB/T 34408-2017	Detection of bovine, ovine and porcine derived materials in leather by qualitative polymerase chain reaction (PCR) method 天然皮革牛、羊、猪源性成分定性PCR检测方法	China National Standards method the	English PDF
GB/T 34579-2017	Methods of measurement and limits for radiated disturbances from plasma display panel equipment in the frequency range 150kHz to 30MHz 等离子显示设备150kHz～30MHz辐射骚扰限值和测量方法	China National Standards method the	English PDF
GB/T 13747.21-2017	Methods for chemical analysis of zirconium and zirconium alloys—Part 21：Determination of hydrogen content—Inert gas fusion-infrared absorption or thermal conductivity method 锆及锆合金化学分析方法第21部分：氢量的测定惰气熔融红外吸收法/热导法	China National Standards method the	English PDF
GB/T 34407-2017	Test method for the wall thickness of plastic pipes by ultrasonic 塑料管道壁厚超声波检测方法	China National Standards method the	English PDF
GB/T 1819.15-2017	Methods for chemical analysis of tin concentrates—Part 15：Determination of fluorine content—The ion-selective electrode method 锡精矿化学分析方法第15部分：氟量的测定离子选择电极法	China National Standards method the	English PDF
GB/T 3250-2017	Shearing and riveting test method of wires and rods for the aluminum and aluminum-alloy rivets 铝及铝合金铆钉用线材和棒材剪切与铆接试验方法	China National Standards method the	English PDF
GB/T 34641-2017	Non-destructive testing—Test method for determining image quality in direct thermal neutron radiographic examination 无损检测直接热中子照相检测的像质测定方法	China National Standards method the	English PDF
GB/T 34445-2017	Test method of hot-tack property for heat sealing surfaces of thermoplastic polymer and thermoplastic composite material 热塑性塑料及其复合材料热封面热粘性能测定	China National Standards method the	English PDF
GB/T 13747.19-2017	Methods for chemical analysis of zirconium and zirconium alloys—Part19：Determination of titanium content—Diantipyrylmethane spectrophotometry and the inductively coupled plasma atomic emission spectrometry 锆及锆合金化学分析方法第19部分：钛量的测定二安替比林甲烷分光光度法和电感耦合等离子体原子发射光谱法	China National Standards method the	English PDF
GB/T 19587-2017	Determination of the specific surface area of solids by gas adsorption using the BET method 气体吸附BET法测定固态物质比表面积	China National Standards method the	English PDF
GB/T 13747.22-2017	Methods for chemical analysis of zirconium and zirconium alloys—Part 22：Determination of oxygen and nitrogen contents—Inert gas fusion-infrared absorption and thermal conductivity method 锆及锆合金化学分析方法第22部分：氧量和氮量的测定惰气熔融红外吸收法/热导法	China National Standards method the	English PDF
GB/T 13747.1-2017	Methods for chemical analysis of zirconium and zirconium alloys—Part 1：Determination of tin content—Potassium iodate titration and phenylfluorone-polyethylene glycoloctyl phenyl ether spectrophotometry 锆及锆合金化学分析方法第1部分：锡量的测定碘酸钾滴定法和苯基荧光酮-聚乙二醇辛基苯基醚分光光度法	China National Standards method the	English PDF
GB/T 34499.2-2017	Methods for chemical analysis of iridium compounds—Part 2：Determination of silver, gold, platinum, palladium, rhodium, ruthenium, aluminium, copper, iron, nickel, lead, magnesium, manganese, tin, zinc, calcium, sodium, potassium, silicon content—Ind 铱化合物化学分析方法第2部分: 银、金、铂、钯、铑、钌、铝、铜、铁、镍、铅、镁、锰、锡、锌、钙、钠、钾、硅的测定电感耦合等离子体原子发射光谱法	China National Standards method the	English PDF
GB/T 3690-2017	Textile conveyor belts—Full thickness tensile strength,elongation at break and elongation at the reference load—Test method 织物芯输送带全厚度拉伸强度、拉断伸长率和参考力伸长率试验方法	China National Standards method the	English PDF
GB/T 1819.12-2017	Methods for chemical analysis of tin concentrates—Part 12:Determination of silicon dioxide content—The silicomolybdenum blue spectrophotometry and sodium hydroxide titration 锡精矿化学分析方法第12部分：二氧化硅量的测定硅钼蓝分光光度法和氢氧化钠滴定法	China National Standards method the	English PDF
GB/T 1819.9-2017	Methods for chemical analysis of tin concentrates—Part 9：Determination of tungsten trioxide content—The thiocyanate spectrophotometric method 锡精矿化学分析方法第9部分：三氧化钨量的测定硫氰酸盐分光光度法	China National Standards method the	English PDF
GB/T 34176-2017	Chemical analysis methods for determination of Fe2+ and Fe3+ in refractory products by the spectral photometric method with 1,10-phenanthroline 邻二氮杂菲分光光度法测定耐火材料中的二价和三价铁离子化学分析方法	China National Standards method the	English PDF
GB/T 34184-2017	Test method for infrared refractive index of infrared optical glass—The deflection angle measurement 红外光学玻璃红外折射率测试方法偏折角法	China National Standards method the	English PDF
GB/T 34210-2017	Test method for determining the orientation of sapphire single crystal 蓝宝石单晶晶向测定方法	China National Standards method the	English PDF
GB/T 34237-2017	Fluorinated olefins for refrigerant use—General method for the determination of water 制冷剂用氟代烯烃水分测定通用方法	China National Standards method the	English PDF
GB/T 34261-2017	Optical film for polarizer—Test method for the anti-scratch 偏光片用光学薄膜抗划伤的测试	China National Standards method the	English PDF
GB/T 7676.9-2017	Direct acting indicating analogue electrical measuring instruments and their accessories—Part 9：Recommended test methods 直接作用模拟指示电测量仪表及其附件第9部分：推荐的试验方法	China National Standards method the	English PDF
GB/T 22517.4-2017	Technical requirements and test methods for sports fields—Part 4: Synthetic surface for basketball 体育场地使用要求及检验方法第4部分：合成面层篮球场地	China National Standards method the	English PDF
GB/T 34265-2017	Guide for the method of Sanger sequencing Sanger法测序技术指南	China National Standards method the	English PDF
GB/T 34273-2017	Coal based Fischer-Tropsch synthesis—Standard test method for calculated cetane index of distillate fuels—Four variable equation 煤基费托合成馏分燃料十六烷指数计算法四变量公式法	China National Standards method the	English PDF

Find out:500Items | To Page of: First -Previous-Next -Last | 1 2 3

- Since 2001 -
Focus on China Standards & Compliance Services

www.gbstandards.org
China National Standards