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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards; We provide Chinese GB standards and English version GB standards Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services. |
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 31226-2014 |
Standard test method for determination of surface roughness by scanning tunneling microscopy for gas disTribution system components 扫描隧道显微术测定气体配送系统部件表面粗糙度的方法 |
China National Standards Tri |
 English PDF |
| GB/T 31230.6-2014 |
IndusTrial ethernet fieldbus EtherCAT―Part 6: Application Layer protocol specification 工业以太网现场总线EtherCAT 第6部分：应用层协议规范 |
China National Standards Tri |
English PDF |
| GB/T 31230.5-2014 |
IndusTrial ethernet fieldbus EtherCAT—Part 5: Application Layer service definition 工业以太网现场总线EtherCAT 第5部分：应用层服务定义 |
China National Standards Tri |
English PDF |
| GB/T 31230.4-2014 |
IndusTrial ethernet fieldbus EtherCAT—Part 4: Data Link Layer protocol specificatiion 工业以太网现场总线EtherCAT 第4部分：数据链路层协议规范 |
China National Standards Tri |
English PDF |
| GB/T 31230.3-2014 |
IndusTrial ethernet fieldbus EtherCAT—Part 3: Data Link Layer service definition 工业以太网现场总线EtherCAT 第3部分：数据链路层服务定义 |
China National Standards Tri |
English PDF |
| GB/T 31230.2-2014 |
IndusTrial ethernet fieldbus EtherCAT―Part 2: Physical Layer service and protocol specification 工业以太网现场总线EtherCAT 第2部分： 物理层服务和协议规范 |
China National Standards Tri |
English PDF |
| GB/T 31230.1-2014 |
IndusTrial ethernet fieldbus EtherCAT―Part 1: Overview 工业以太网现场总线EtherCAT 第1部分：概述 |
China National Standards Tri |
English PDF |
| GB/T 25105.3-2014 |
IndusTrial communication networks―Fieldbus specifications―Type 10 PROFINET IO specifications―Part 3: PROFINET IO communication profile 工业通信网络 现场总线规范 类型10：PROFINET IO规范 第3部分：PROFINET IO通信行规 |
China National Standards Tri |
English PDF |
| GB/T 25105.2-2014 |
IndusTrial communication networks―Fieldbus specifications―Type 10: PROFINET IO Specifications―Part 2: Application layer protocol specification 工业通信网络 现场总线规范 类型10：PROFINET IO规范 第2部分：应用层协议规范 |
China National Standards Tri |
English PDF |
| GB/T 25105.1-2014 |
IndusTrial communication networks―Fieldbus specifications―Type 10 PROFINET IO Specifications―Part 1: Application layer service definition 工业通信网络 现场总线规范 类型10：PROFINET IO规范 第1部分：应用层服务定义 |
China National Standards Tri |
English PDF |
| GB 19725.2-2014 |
Agricultural and forestry machinery―Safety requirements and testing for portable hand-held powered brush-cutters and grass-Trimmers―Part 2: Machines for use with back-pack power unit 农林机械 便携式割灌机和割草机安全要求和试验 第2部分：背负式动力机械 |
China National Standards Tri |
English PDF |
| GB 19725.1-2014 |
Agricultural and forestry machinery―Safety requirements and testing for portable,hand-held,powered brush-cutters and grass-Trimmers―Part 1: Machines fitted with an integral combustion engine 农林机械 便携式割灌机和割草机安全要求和试验 第1部分：侧挂式动力机械 |
China National Standards Tri |
English PDF |
| GB 16915.1-2014 |
Switches for household and similar fixed-elecTrical installations―Part 1: General requirements 家用和类似用途固定式电气装置的开关 第1部分：通用要求 |
China National Standards Tri |
English PDF |
| GB 30879.2-2014 |
Information technology―Universal multiple-octet coded character set (basic multilingual plane)―22 dot maTrix font of Chinese ideogram―Part 2: Hei Ti 信息技术 通用多八位编码字符集（基本多文种平面） 汉字22点阵字型 第2部分：黑体 |
China National Standards Tri |
English PDF |
| GB 30879.1-2014 |
Information technology―Universal multiple-octet coded character set (basic multilingual plane)―22 dot maTrix font of Chinese ideogram―Part 1: Song Ti 信息技术 通用多八位编码字符集（基本多文种平面） 汉字22点阵字型 第1部分：宋体 |
China National Standards Tri |
English PDF |
| GB 30878-2014 |
Information technology―Universal multiple-octet coded character set (basic multilingual plane)―17×18 dot maTrix font of Chinese ideogram 信息技术 通用多八位编码字符集（基本多文种平面） 汉字17×18点阵字型 |
China National Standards Tri |
English PDF |
| GB 30877-2014 |
Information technology—Universal multi-octet coded character set—Mongolian nominal characters and presentation forms—48 dot maTrix font—XiaoJing Ti 信息技术 通用多八位编码字符集 蒙古文名义字符与变形显现字符 48点阵字型 孝经体 |
China National Standards Tri |
English PDF |
| GB 30876-2014 |
Information technology―Universal multi-octet coded character set―Mongolian nominal characters and presentation forms―32 dot maTrix font―XiaoJing Ti 信息技术 通用多八位编码字符集 蒙古文名义字符与变形显现字符 32点阵字型 孝经体 |
China National Standards Tri |
English PDF |
| GB 30875-2014 |
Information technology―Universal multi-octet coded character set―Phags-pa nominal characters and presentation forms―32 dot maTrix font―Hubilie Ti 信息技术 通用多八位编码字符集 八思巴文名义字符与变形显现字符 32点阵字型 忽必烈体 |
China National Standards Tri |
English PDF |
| GB 30874-2014 |
Information technology―Universal multi-octet coded character set―Phags-pa nominal characters and presentation forms―16 dot maTrix font―Hubilie Ti 信息技术 通用多八位编码字符集 八思巴文名义字符与变形显现字符 16点阵字型 忽必烈体 |
China National Standards Tri |
English PDF |
| GB 25902.7-2014 |
Information technology―Universal multiple-octet coded character set New Xishuang Banna Dai 32 dot maTrix font―Part 7：Ledabi Ti 信息技术 通用多八位编码字符集 西双版纳新傣文32点阵字型 第7部分：勒达毕体 |
China National Standards Tri |
English PDF |
| GB 25902.6-2014 |
Information technology―Universal multiple-octet coded character set New Xishuang Banna Dai 32 dot maTrix font―Part 6：Wennuanfeidahei Ti 信息技术 通用多八位编码字符集 西双版纳新傣文32点阵字型 第6部分：温暖菲大黑体 |
China National Standards Tri |
English PDF |
| GB 25902.5-2014 |
Information technology―Universal multiple-octet coded character set―New Xishuang Banna Dai 32 dot maTrix font―Part 5：Fahang Ti 信息技术 通用多八位编码字符集 西双版纳新傣文32点阵字型 第5部分：法杭体 |
China National Standards Tri |
English PDF |
| GB/T 7698-2014 |
Sodium hydroxide for indusTrial use―Determination of carbonates content―Titrimetric method 工业用氢氧化钠 碳酸盐含量的测定 滴定法 |
China National Standards Tri |
English PDF |
| GB/T 4348.2-2014 |
Sodium hydroxide for indusTrial use―Determination of sodium chloride content―Mercurimetric method 工业用氢氧化钠 氯化钠含量的测定 汞量法 |
China National Standards Tri |
English PDF |
| GB/T 31197-2014 |
Inorganic chemicals for indusTrial use―Determination of impurity anions―Ion chromatography method 无机化工产品 杂质阴离子的测定 离子色谱法 |
China National Standards Tri |
English PDF |
| GB/T 31194-2014 |
High purity zinc sulfide for indusTrial use 高纯工业品硫化锌 |
China National Standards Tri |
English PDF |
| GB/T 2449.1-2014 |
Sulphur for indusTrial use—Part 1: Solid product 工业硫磺 第1部分：固体产品 |
China National Standards Tri |
English PDF |
| GB/T 31250-2014 |
General requirements on environmental information of elecTrical and electronic products 电子电气产品环境信息基本要求 |
China National Standards Tri |
English PDF |
| GB/T 31249-2014 |
Environmentally conscious design for elecTrical and electronic products―Materials selection 电子电气产品环境意识设计 材料选择 |
China National Standards Tri |
English PDF |
| GB/Z 5169.34-2014 |
Fire hazard testing for elecTric and eletronic products—Part 34: Guidance for assessing the fire hazard—Ignitability—Summary and relevance of test methods 电工电子产品着火危险试验 第34部分：着火危险评定导则 起燃性 试验方法概要和相关性 |
China National Standards Tri |
English PDF |
| GB/Z 5169.33-2014 |
Fire hazard testing for elecTric and electronic products—Part 33: Guidance for assessing the fire hazard—Ignitability—General guidance 电工电子产品着火危险试验 第33部分：着火危险评定导则 起燃性 总则 |
China National Standards Tri |
English PDF |
| GB/T 7600-2014 |
Determination of water content in transformer oils and turbine oils in service by coulomeTric method 运行中变压器油和汽轮机油水分含量测定法(库仑法) |
China National Standards Tri |
English PDF |
| GB/T 5169.38-2014 |
Fire hazard testing for elecTric and electronic products―Part 38: Toxicity of fire effluent―Summary and relevance of test methods 电工电子产品着火危险试验 第38部分：燃烧流的毒性 试验方法概要和相关性 |
China National Standards Tri |
English PDF |
| GB/T 21207.2-2014 |
Low-voltage switchgear and controlgear―Device profiles for networked indusTrial devices―Part 2: Root device profiles for starters and similar equipment 低压开关设备和控制设备 入网工业设备描述 第2部分：起动器和类似设备的根设备描述 |
China National Standards Tri |
English PDF |
| GB/T 21207.1-2014 |
Low-voltage switchgear and controlgear―Device profiles for networked indusTrial devices―Part 1: General rules for development of device profiles 低压开关设备和控制设备 入网工业设备描述 第1部分：设备描述编制总则 |
China National Standards Tri |
English PDF |
| GB/T 31202-2014 |
Agricultural and forestry machinery and garden machinery—PedesTrian controlled and hand-held machines—Determination of accessibility of hot surfaces 农业和林业机械及园林机械 手扶控制和手持控制机械 灼热表面可触及性的测定 |
China National Standards Tri |
English PDF |
| GB/T 4854.6-2014 |
Acoustics―Reference zero for the calibration of audiomeTric equipment―Part 6: Reference hearing threshold levels for test signals of short duration 声学 校准测听设备的基准零级 第6部分：短时程测试信号的基准听阈 |
China National Standards Tri |
English PDF |
| GB/T 31136-2014 |
Temperature control cabinet for indusTrial resistance furnace 工业电阻炉温度控制柜 |
China National Standards Tri |
English PDF |
| GB/T 31135-2014 |
Fiber reinforced unsaturated polyester powder moulding compounds（UP-PMC）for elecTrical purposes 电气用纤维增强不饱和聚酯粉状模塑料（UP-PMC） |
China National Standards Tri |
English PDF |
| GB/T 31134-2014 |
Fiber reinforced epoxy powder moulding compounds（EP-PMC）for elecTrical purposes 电气用纤维增强环氧粉状模塑料（EP-PMC） |
China National Standards Tri |
English PDF |
| GB/T 30881-2014 |
Information technology—Metadata regisTries (MDR)Modules 信息技术 元数据注册系统（MDR）模块 |
China National Standards Tri |
English PDF |
| GB/T 30839.4-2014 |
Energy consumption grading for indusTrial electroheat installations―Part 4: Indirect resistance furnaces 工业电热装置能耗分等 第4部分：间接电阻炉 |
China National Standards Tri |
English PDF |
| GB/T 30839.41-2014 |
Energy consumption grading for indusTrial electroheat installations―Part 41：Pusher resistance heating unit 工业电热装置能耗分等 第41部分：推送式电阻加热机组 |
China National Standards Tri |
English PDF |
| GB/T 28826.2-2014 |
Information technology―Common biomeTric exchange formats framework―Part 2：Procedures for the operation of the biometric registration authority 信息技术 公用生物特征识别交换格式框架 第2部分：生物特征识别注册机构操作规程 |
China National Standards Tri |
English PDF |
| GB/T 26237.8-2014 |
Information technology―BiomeTric data interchange formats―Part 8: Finger pattern skeletal data 信息技术 生物特征识别数据交换格式 第8部分：指纹型骨架数据 |
China National Standards Tri |
English PDF |
| GB/T 18759.4-2014 |
ElecTrical equipment of machines―Open numerical control system―Part 4: Hardware platform 机械电气设备 开放式数控系统 第4部分：硬件平台 |
China National Standards Tri |
English PDF |
| GB/T 18494.1-2014 |
Converter transformers―Part 1: Transformers for indusTrial applications 变流变压器 第1部分：工业用变流变压器 |
China National Standards Tri |
English PDF |
| GB 31187-2014 |
Sporting goods―General requirements for elecTrical parts 体育用品 电气部分的通用要求 |
China National Standards Tri |
English PDF |
| GB/T 31184-2014 |
Technical requirements of manufacturing consulting service for cenTrifugal compressors 离心式压缩机制造监理技术要求 |
China National Standards Tri |
English PDF |
| GB/T 50293-2014 |
Code for planning of urban elecTric power 城市电力规划规范 |
China National Standards Tri |
English PDF |
| GB 14287.3-2014 |
ElecTrical fire monitoring system―Part 3: Temperature sensing electrical fire monitoring detectors 电气火灾监控系统 第3部分：测温式电气火灾监控探测器 |
China National Standards Tri |
English PDF |
| GB 14287.2-2014 |
ElecTrical fire monitoring system―Part 2: Residual current electrical fire monitoring detectors 电气火灾监控系统 第2部分：剩余电流式电气火灾监控探测器 |
China National Standards Tri |
English PDF |
| GB 14287.1-2014 |
ElecTrical fire monitoring system―Part 1: Electrical fire monitoring equipment 电气火灾监控系统 第1部分：电气火灾监控设备 |
China National Standards Tri |
English PDF |
| GB/T 30854-2014 |
Gallium niTride based epitaxial layer for LED lighting LED发光用氮化镓基外延片 |
China National Standards Tri |
English PDF |
| GB/Z 30993-2014 |
Safety requirements for elecTrical equipment for measurement, control, and laboratory use―Conformity verification report for GB 4793.1-2007 测量、控制和实验室用电气设备的安全要求 GB 4793.1-2007的符合性验证报告格式 |
China National Standards Tri |
English PDF |
| GB/T 3954-2014 |
Aluminium and aluminium alloys rod for elecTrical purpose 电工圆铝杆 |
China National Standards Tri |
English PDF |
| GB/T 30992-2014 |
Conformity verification protocol for safety requirements for indusTrial automation products―General rule 工业自动化产品安全要求符合性验证规程 总则 |
China National Standards Tri |
English PDF |
| GB/T 30976.2-2014 |
IndusTrial control system security―Part 2: Acceptance specification 工业控制系统信息安全 第2部分：验收规范 |
China National Standards Tri |
English PDF |
| GB/T 30976.1-2014 |
IndusTrial control system security―Part 1: Assessment specification 工业控制系统信息安全 第1部分：评估规范 |
China National Standards Tri |
English PDF |
| GB/T 1981.6-2014 |
Varnishes used for elecTrical insulation―Part 6：Environment-friendly water or emulsion based impregnating varnishes 电气绝缘用漆 第6部分：环保型水性浸渍漆 |
China National Standards Tri |
English PDF |
| GB 30439.9-2014 |
Safety requirements for indusTrial automation products―Part 9: Safety requirements for digit display instrument 工业自动化产品安全要求 第9部分: 数字显示仪表的安全要求 |
China National Standards Tri |
English PDF |
| GB 30439.8-2014 |
Safety requirements for indusTrial automation products―Part 8: Safety requirements for electrical actuator 工业自动化产品安全要求 第8部分：电动执行机构的安全要求 |
China National Standards Tri |
English PDF |
| GB 30439.7-2014 |
Safety requirements for indusTrial automation products―Part 7: Safety requirements for loop regulator 工业自动化产品安全要求 第7部分：回路调节器的安全要求 |
China National Standards Tri |
English PDF |
| GB 30439.10-2014 |
Safety requirements for indusTrial automation products―Part 10: Safety requirements for recording instrument 工业自动化产品安全要求 第10部分: 记录仪表的安全要求 |
China National Standards Tri |
English PDF |
| GB/T 21421.2-2014 |
Composite sTring insulator units for overhead lines with a nominal voltage greater than 1 000 V― Part 2：Dimensions and characteristics 标称电压高于1 000V 的架空线路用复合绝缘子串元件 第2部分：尺寸与特性 |
China National Standards Tri |
English PDF |
| GB/T 3356-2014 |
Test method for flexural properties of orientational fiber reinforced polymer meTrix composite materials 定向纤维增强聚合物基复合材料弯曲性能试验方法 |
China National Standards Tri |
English PDF |
| GB/T 3355-2014 |
Test method for in-plane shear response of polymer maTrix composite materials 聚合物基复合材料纵横剪切试验方法 |
China National Standards Tri |
English PDF |
| GB/T 3354-2014 |
Test method for tensile properties of orientation fiber reinforced polymer maTrix composite materials 定向纤维增强聚合物基复合材料拉伸性能试验方法 |
China National Standards Tri |
English PDF |
| GB/T 30970-2014 |
Test method for the shear properties of polymer maTrix composite materials by V-notched beam method 聚合物基复合材料剪切性能V型缺口梁试验方法 |
China National Standards Tri |
English PDF |
| GB/T 30969-2014 |
Test method for short-beam shear strength of polymer maTrix composite materials 聚合物基复合材料短梁剪切强度试验方法 |
China National Standards Tri |
English PDF |
| GB/T 30968.4-2014 |
Test method for open-hole/loaded-hole of polymer maTrix composite laminates―Part 4: Test method of open-hole compressive strength 聚合物基复合材料层合板开孔/受载孔性能试验方法 第4部分：开孔压缩强度试验方法 |
China National Standards Tri |
English PDF |
| GB/T 30968.3-2014 |
Test method for open-hole/loaded-hole of polymer maTrix composite laminates―Part 3: Test method of open-hole tensile strength strength 聚合物基复合材料层合板开孔/受载孔性能试验方法 第3部分：开孔拉伸强度试验方法 |
China National Standards Tri |
English PDF |
| GB/T 30968.2-2014 |
Test method for open-hole/loaded-hole of polymer maTrix composite laminates―Part 2: Test method of filled-hole tension and compression 聚合物基复合材料层合板开孔/受载孔性能试验方法 第2部分：充填孔拉伸和压缩试验方法 |
China National Standards Tri |
English PDF |
| GB/T 30968.1-2014 |
Test method for open-hole/loaded-hole of polymer maTrix composite laminates—Part 1: Test method of bearing response 聚合物基复合材料层合板开孔/受载孔性能试验方法 第1部分：挤压性能试验方法 |
China National Standards Tri |
English PDF |
| GB 10827.1-2014 |
IndusTrial trucks――Safety requirements and verification―Part 1: Self-propelled industrial trucks, other than driverless trucks, variable-reach trucks and burden-carrier trucks 工业车辆 安全要求和验证 第1部分：自行式工业车辆（除无人驾驶车辆、伸缩臂式叉车和载运车） |
China National Standards Tri |
English PDF |
| GB/T 30951-2014 |
Scrap condition about elecTrical and mechanical equipment of small-scale hydropower station 小型水电站机电设备报废条件 |
China National Standards Tri |
English PDF |
| GB/T 15659-2014 |
Acceptance code of new rural hydropower elecTrification 水电新农村电气化验收规程 |
China National Standards Tri |
English PDF |
| GB/T 7715-2014 |
Ethylene for indusTrial use―Specification 工业用乙烯 |
China National Standards Tri |
English PDF |
| GB/T 6009-2014 |
Anhydrous sodium sulfate for indusTrial use 工业无水硫酸钠 |
China National Standards Tri |
English PDF |
| GB/T 534-2014 |
Sulphuric acid for indusTrial use 工业硫酸 |
China National Standards Tri |
English PDF |
| GB/T 5275.9-2014 |
Gas analysis―Preparation of calibration gas mixtures using dynamic volumeTric methods―Part 9: Saturation method 气体分析 动态体积法制备校准用混合气体 第9部分:饱和法 |
China National Standards Tri |
English PDF |
| GB/T 5275.8-2014 |
Gas analysis―Preparation of calibration gas mixtures using dynamic volumeTric methods―Part 8: Diffusion method 气体分析 动态体积法制备校准用混合气体 第8部分：扩散法 |
China National Standards Tri |
English PDF |
| GB/T 5275.7-2014 |
Gas analysis―Preparation of calibration gas mixtures using dynamic volumeTric methods―Part 7: Thermal mass-flow controllers 气体分析 动态体积法制备校准用混合气体 第7部分：热式质量流量控制器 |
China National Standards Tri |
English PDF |
| GB/T 5275.6-2014 |
Gas analysis―Preparation of calibration gas mixtures using dynamic volumeTric methods―Part 6: Critical orifices 气体分析 动态体积法制备校准用混合气体 第6部分：临界锐孔 |
China National Standards Tri |
English PDF |
| GB/T 5275.5-2014 |
Gas analysis―Preparation of calibration gas mixtures using dynamic volumeTric methods―Part 5: Capillary calibration devices 气体分析 动态体积法制备校准用混合气体 第5部分：毛细管校准器 |
China National Standards Tri |
English PDF |
| GB/T 5275.4-2014 |
Gas analysis—Preparation of calibration gas mixtures using dynamic volumeTric methods—Part 4: Continuous syringe injection method 气体分析 动态体积法制备校准用混合气体 第4部分：连续注射法 |
China National Standards Tri |
English PDF |
| GB/T 5275.2-2014 |
Gas analysis―Preparation of calibration gas mixtures using dynamic volumeTric methods―Part 2: Volumetric pumps 气体分析 动态体积法制备校准用混合气体 第2部分：容积泵 |
China National Standards Tri |
English PDF |
| GB/T 5275.1-2014 |
Gas analysis―Preparation of calibration gas mixtures using dynamic volumeTric methods―Part 1: Methods of calibration 气体分析 动态体积法制备校准用混合气体 第1部分：校准方法 |
China National Standards Tri |
English PDF |
| GB/T 5275.11-2014 |
Gas analysis―Preparation of calibration gas mixtures using dynamic volumeTric methods―Part 11: Electrochemical generation 气体分析 动态体积法制备校准用混合气体 第11部分：电化学发生法 |
China National Standards Tri |
English PDF |
| GB/T 4313-2014 |
Information technology―Office equipment―General specification for fabric printing ribbons for dot maTrix printers 信息技术 办公设备 针式打印机用编织打印色带通用规范 |
China National Standards Tri |
English PDF |
| GB/T 337.2-2014 |
Dilute niTric acid for industrial use 工业硝酸 稀硝酸 |
China National Standards Tri |
English PDF |
| GB/T 337.1-2014 |
Concentrated niTric acid for industrial use 工业硝酸 浓硝酸 |
China National Standards Tri |
English PDF |
| GB/T 30961-2014 |
Embedded software quality meTric 嵌入式软件质量度量 |
China National Standards Tri |
English PDF |
| GB/T 30921.1-2014 |
Test method of purified terephthalic acid (PTA) for indusTrial use―Part 1：Determination of concentrations of 4-carboxybenzaldehyde (4-CBA) and p-toluic acid (p-TOL) 工业用精对苯二甲酸（PTA）试验方法 第1部分：对羧基苯甲醛（4-CBA）和对甲基苯甲酸(p-TOL)含量的测定 |
China National Standards Tri |
English PDF |
| GB/T 30913-2014 |
Standard test method for classification of film systems for indusTrial radiography 工业射线胶片系统分类标准试验方法 |
China National Standards Tri |
English PDF |
| GB/T 30909-2014 |
Rubber shoes―Determination of migration of acryloniTrile 胶鞋 丙烯腈迁移量的测定 |
China National Standards Tri |
English PDF |
| GB/T 30906-2014 |
Determination of sodium Tripolyphosphate content of sodium tripolyphosphate―Ion chromatography 三聚磷酸钠中三聚磷酸钠含量的测定 离子色谱法 |
China National Standards Tri |
English PDF |
| GB/T 30905-2014 |
Inorganic chemicals for indusTrial use―Determination of element contents―X-ray fluorescence analysis 无机化工产品 元素含量的测定 X射线荧光光谱法 |
China National Standards Tri |
English PDF |
| GB/T 30904-2014 |
Inorganic chemicals for indusTrial use―Crystal form analysis―X-ray diffraction method 无机化工产品 晶型结构分析 X射线衍射法 |
China National Standards Tri |
English PDF |
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