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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 2900.51-1998 |
ElECtrotechnical terminology--Overhead lines 电工术语 架空线路 |
China National Standards EC |
 English PDF |
| GB/T 17463-1998 |
TelEControl equipment and systems--Part 4:Performance requirements 远动设备及系统 第4部分:性能要求 |
China National Standards EC |
English PDF |
| GB/T 15153.1-1998 |
TelEControl equipment and systems--Part 2:Operating conditions--Section 1:Power supply and electromagnetic compatibility 远动设备及系统 第2部分:工作条件 第1篇:电源和电磁兼容性 |
China National Standards EC |
English PDF |
| GB/T 4459.7-1998 |
MEChanical drawings--Representation of rolling bearings 机械制图 滚动轴承表示法 |
China National Standards EC |
English PDF |
| GB/T 17452-1998 |
TEChnical drawings--General principles of presentation--Sections and cuts 技术制图 图样画法 剖视图和断面图 |
China National Standards EC |
English PDF |
| GB/T 17451-1998 |
TEChnical drawings--General principles of presentation--Views 技术制图 图样画法 视图 |
China National Standards EC |
English PDF |
| GB/T 17450-1998 |
TEChnical drawings--Basic conventions for lines 技术制图 图线 |
China National Standards EC |
English PDF |
| GB/T 17462-1998 |
Metallic coatings--ElECtroplated coatingsof tin-nickel alloys 金属覆盖层 锡-镍合金电镀层 |
China National Standards EC |
English PDF |
| GB/T 17461-1998 |
Metallic coatings--ElECtroplated coatingsof tin-lead alloys 金属覆盖层 锡-铅合金电镀层 |
China National Standards EC |
English PDF |
| GB/T 7358-1998 |
ElECtrical installations in ships--Systemdesign--General 船舶电气设备 系统设计 总则 |
China National Standards EC |
English PDF |
| GB/T 17439-1998 |
SpECification for transmission of component-coded digital television signals for contribution-quality applications at the third hierarchical level 在三次群中传送馈送质量分量编码数字电视信号传输技术规范 |
China National Standards EC |
English PDF |
| GB/T 17438-1998 |
TEChnical requirements for the transmission through contribution and primary distribution networks of digital television signals defined according to the 4∶2∶2 standard 由4∶2∶2标准定义的数字电视信号馈送和一次分配网络传输技术要求 |
China National Standards EC |
English PDF |
| GB/T 17436-1998 |
SelECtion of explosion proof electricalequipment in ship hazardous areas 船舶危险区域防爆电气设备的选用 |
China National Standards EC |
English PDF |
| GB/T 17435-1998 |
Design and installation of elECtrolysisof seawater anti-fouling system for ship 船用电解海水防污装置设计和安装 |
China National Standards EC |
English PDF |
| GB/T 7676.9-1998 |
DirECt acting indicating analogue electrical measuring instruments and their accessories--Part 9:Recom-mended 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 EC |
English PDF |
| GB/T 7676.8-1998 |
DirECt acting indicating analogue electrical measuring instruments and their accessories--Part 8:Special requirements for accessories 直接作用模拟指示电测量仪表及其附件 第8部分:附件的特殊要求 |
China National Standards EC |
English PDF |
| GB/T 7676.7-1998 |
DirECt acting indicating analogue electrical measuring instruments and their accessories--Part 7:Special requirements for multi-function instruments 直接作用模拟指示电测量仪表及其附件 第7部分:多功能仪表的特殊要求 |
China National Standards EC |
English PDF |
| GB/T 7676.6-1998 |
DirECt acting indicating analogue electrical measuring instruments and their accessories--Part 6:Special requirements for ohmmeters(impedance meters) and conductance meters 直接作用模拟指示电测量仪表及其附件 第6部分:电阻表(阻抗表)和电导表的特殊要求 |
China National Standards EC |
English PDF |
| GB/T 7676.5-1998 |
DirECt acting indicating analogue electrical measuring instruments and their accessories--Part 5:Special requirements for phase meters，power factor meters and synchroscopes 直接作用模拟指示电测量仪表及其附件 第5部分:相位表、功率因数表和同步指示器的特殊要求 |
China National Standards EC |
English PDF |
| GB/T 7676.4-1998 |
DirECt acting indicating analogue electrical measuring instruments and their accessories--Part 4:Special requirements for frequency meters 直接作用模拟指示电测量仪表及其附件 第4部分:频率表的特殊要求 |
China National Standards EC |
English PDF |
| GB/T 7676.3-1998 |
DirECt acting indicating analogue electrical measuring instruments and their accessories--Part 3:Special requirements for wattmeters and varmeters 直接作用模拟指示电测量仪表及其附件 第3部分:功率表和无功率表的特殊要求 |
China National Standards EC |
English PDF |
| GB/T 7676.2-1998 |
DirECt acting indicating analogue electrical measuring instruments and their accessories--Part 2:Special requirements for ammeters and voltmeters 直接作用模拟指示电测量仪表及其附件 第2部分:电流表和电压表的特殊要求 |
China National Standards EC |
English PDF |
| GB/T 7676.1-1998 |
DirECt acting indicating analogue electrical measuring instruments and their accessories--Part 1:Definition and general requirements common to all parts 直接作用模拟指示电测量仪表及其附件 第1部分:定义和通用要求 |
China National Standards EC |
English PDF |
| GB/T 17442-1998 |
Acceptance inspECtion fordirect connected alternating current static watt-hour meters for active energy (classes 1 and 2) 1级和2级直接接入静止式交流有功电度表验收检验 |
China National Standards EC |
English PDF |
| GB/T 13850-1998 |
ElECtrical measuring transducers for converting a.c. electrical quantities to analogue or digital singals 交流电量转换为模拟量或数字信号的电测量变送器 |
China National Standards EC |
English PDF |
| GB/T 6594.1-1998 |
Polystyrene (PS) moulding and extrusion materials--Part 1:Designation system and basis for spECifications 聚苯乙烯(PS)模塑和挤出材料 第1部分:命名系统和分类基础 |
China National Standards EC |
English PDF |
| GB/T 17423-1998 |
Series 1 freight containers--Interface connECtions for tank containers 系列1集装箱 罐式集装箱的接口 |
China National Standards EC |
English PDF |
| GB/T 9394-1998 |
Potassium silicate solution for use in elECtronicindustry 电子工业用硅酸钾溶液 |
China National Standards EC |
English PDF |
| GB 17403-1998 |
Hygienic spECification of chocolate factory 巧克力厂卫生规范 |
China National Standards EC |
English PDF |
| GB/T 17387-1998 |
RECommended practice for the operation，maintenance and troubleshooting of electric submersible pump installations 潜油电泵装置的操作、维护和故障检查 |
China National Standards EC |
English PDF |
| GB/T 7341.2-1998 |
Audiometers--Part 2:Equipment for speEChaudio-metry 听力计 第2部分 语言测听设备 |
China National Standards EC |
English PDF |
| GB/T 17367-1998 |
General regulation on tEChnical assessment and management for water licensing 取水许可技术考核与管理通则 |
China National Standards EC |
English PDF |
| GB/T 17366-1998 |
Methods of mineral and rock spECimen preparation for EPMA 矿物岩石的电子探针分析试样的制备方法 |
China National Standards EC |
English PDF |
| GB/T 17365-1998 |
Method of preparation for samples of metal and alloy in elECtron probe microanalysis 金属与合金电子探针定量分析样品的制备方法 |
China National Standards EC |
English PDF |
| GB/T 17351-1998 |
Dual spacing of vEChicle wheels 汽车车轮 双轮中心距 |
China National Standards EC |
English PDF |
| GB 17354-1998 |
Front and rear protECtive devices for passenger cars 汽车前、后端保护装置 |
China National Standards EC |
English PDF |
| GB/T 17309.1-1998 |
Methods of measurement on rECeivers for television broadcast transmissions--Part 1:General considerations--Electrical measurements at radio and videofrequencies and measurements on displays 电视广播接收机测量方法 第1部分:一般考虑 射频和视频电性能测量以及显示性能的测量 |
China National Standards EC |
English PDF |
| GB/T 17305-1998 |
Import management certificate form for general goods and mEChanical and electronic products 一般商品和机电产品进口管理证明格式 |
China National Standards EC |
English PDF |
| GB/T 17277-1998 |
Broadcast video tape rECorders methods of measurement--Part 1:Mechanical measurements 广播磁带录像机测量方法 第1部分:机械测量 |
China National Standards EC |
English PDF |
| GB/T 17276-1998 |
General spECification for wireless microphone systems 无线传声器系统通用规范 |
China National Standards EC |
English PDF |
| GB/T 7392-1998 |
Series 1 thermal containers--SpECification and testing 系列1集装箱的技术要求和试验方法 保温集装箱 |
China National Standards EC |
English PDF |
| GB/T 17275-1998 |
TEChnical requirements for freight full trailers 货运全挂车通用技术条件 |
China National Standards EC |
English PDF |
| GB/T 17274-1998 |
Series 1 spECification and testing for non-pressurized containers of dry bulk 系列1无压干散货集装箱技术要求和试验方法 |
China National Standards EC |
English PDF |
| GB/T 17281-1998 |
Natural gas--Determination of hydrocarbons from butane(C4) to hexadECane(C16)--Gas chromato-graphic method 天然气中丁烷至十六烷烃类的测定 气相色谱法 |
China National Standards EC |
English PDF |
| GB/T 17252-1998 |
Acoustics--Characteristics and measurements of ultrasonic piezoelECtric transducers up to 100kHz 声学 100 kHz以下超声压电换能器的特性和测量 |
China National Standards EC |
English PDF |
| GB/T 17248.4-1998 |
Acoustics--Noise emitted by machinery and equipment--Determination of emission sound pressure level at a work station and at other spECified position from the sound power level 声学 机器和设备发射的噪声 由声功率级确定工作位置和其他指定位置的发射声压级 |
China National Standards EC |
English PDF |
| GB/T 17241.7-1998 |
SpECifications for cast iron pipe flanges 铸铁管法兰 技术条件 |
China National Standards EC |
English PDF |
| GB/T 9387.1-1998 |
Information tEChnology--Open systems interconnection--Basic reference model--Part 1:The basic model 信息技术 开放系统互连 基本参考模型 第1部分:基本模型 |
China National Standards EC |
English PDF |
| GB/T 17235.2-1998 |
Information tEChnology--Digital compression and coding of continuous-tone still images--Part 2:Compliance testing 信息技术 连续色调静态图像的数字压缩及编码 第2部分:一致性测试 |
China National Standards EC |
English PDF |
| GB/T 17235.1-1998 |
Information tEChnology--Digital compression and coding of continuous-tone still images--Part 1:Requirements and guidelines 信息技术 连续色调静态图像的数字压缩及编码 第1部分:要求和指南 |
China National Standards EC |
English PDF |
| GB/T 17234-1998 |
Information tEChnology--90mm optical disk cartridges， rewritable and read only， for data interchange 信息技术 数据交换用90 mm可重写和只读盒式光盘 |
China National Standards EC |
English PDF |
| GB/T 17232-1998 |
RECeiving advice message 收货通知报文 |
China National Standards EC |
English PDF |
| GB/T 3485-1998 |
TEChnical guides for evaluating the rationality of electricity usage in industrial enterprise 评价企业合理用电技术导则 |
China National Standards EC |
English PDF |
| GB/T 17228-1998 |
Terminology of surveying and mapping for prospECting to geology and mineral resources 地质矿产勘查测绘术语 |
China National Standards EC |
English PDF |
| GB/T 17226-1998 |
Health standard of classroom ventilation in element-ary and sECondary school 中小学校教室换气卫生标准 |
China National Standards EC |
English PDF |
| GB/T 17225-1998 |
Standard of heating temperature for classroomof elementary and sECondary school 中小学校教室采暖温度标准 |
China National Standards EC |
English PDF |
| GB/T 17219-1998 |
Standard for safety evaluation of equipment and protECtive materials in drinking water system 生活饮用水输配水设备及防护材料的安全性评价标准 |
China National Standards EC |
English PDF |
| GB/T 17213.8-1998 |
Industrial-process control valves--Part 8:Noise considerations--SECtion 1:Laboratory measurement of noise generated by aerodynamic flow through control valves 工业过程控制阀 第8部分:噪声的考虑 第1节:实验室内测量空气动力流流经控制阀产生的噪声 |
China National Standards EC |
English PDF |
| GB/T 5586-1998 |
Test methods for essential porperty of elECtric contact material 电触头材料基本性能试验方法 |
China National Standards EC |
English PDF |
| GB/T 17210-1998 |
ElECtromechanical switches for use in electronic equipment--Part 2:Sectional specification for rotary switches--Sectional 1:Blank detail specification 电子设备用机电开关 第2部分:旋转开关分规范 第一篇 空白详细规范 |
China National Standards EC |
English PDF |
| GB/T 17209-1998 |
ElECtromechanical switches for use in electronic equipment--Part 2:Sectional specification for rotary switches 电子设备用机电开关 第2部分:旋转开关分规范 |
China National Standards EC |
English PDF |
| GB/T 17208-1998 |
Fixed capacitors for use in elECtronic equipment--Part 18:Blank detail specification--Fixed aluminium electrolytic chip capacitors with non-solid electrolyte--Assessment level E 电子设备用固定电容器 第18部分:空白详细规范 非固体电解质片式铝固定电容器 评定水平E |
China National Standards EC |
English PDF |
| GB/T 17206-1998 |
Fixed capacitors for use in elECtronic equipment--Part 18:Sectionalspecification--Fixed aluminium electrolytic chip capacitors with solid (MnO2)and non-solid electrolyte 电子设备用固定电容器 第18部分:分规范 固体(MnO2)与非固体电解质片式铝固定电容器 |
China National Standards EC |
English PDF |
| GB/T 3294-1998 |
Method of inspECtion for last sizes 鞋楦尺寸检测方法 |
China National Standards EC |
English PDF |
| GB 13960.9-1997 |
Safety of transportable motor-operated elECtric tools--Part 2:Particular requirements for mitresaws 可移式电动工具的安全 第二部分:斜切割机的专用要求 |
China National Standards EC |
English PDF |
| GB 13960.8-1997 |
Safety of transportable motor-operated elECtric tools--Part 2:Particular requirements for diamond saws with water supply 可移式电动工具的安全 第二部分:带水源金刚石锯的专用要求 |
China National Standards EC |
English PDF |
| GB 13960.7-1997 |
Safety of transportable motor-operated elECtric tools--Part 2:Particular requirements for diamond drills with water supply 可移式电动工具的安全 第二部分:带水源金刚石钻的专用要求 |
China National Standards EC |
English PDF |
| GB/T 11356.2-1997 |
Belt drives--Pulley for classical and narrow V-belts drives(system based on effECtive width)--Geometrical inspection of grooves 带传动 普通及窄V带传动用带轮(有效宽度制) 槽形检验 |
China National Standards EC |
English PDF |
| GB/T 17194-1997 |
Conduits for elECtrical purposes--Outside diameters of conduits for electrical installations and threads of conduits and fittings 电气导管 电气安装用导管的外径和导管与配件的螺纹 |
China National Standards EC |
English PDF |
| GB/T 17193-1997 |
Extra-heavy duty rigid steel conduits for elECtrical installations 电气安装用超重荷型刚性钢导管 |
China National Standards EC |
English PDF |
| GB 17196-1997 |
ConnECting devices--Flat quick-connect terminations for electrical copper conductors--Safety requirements 连接器件 连接铜导线用的扁形快速连接端头 安全要求 |
China National Standards EC |
English PDF |
| GB 16895.4-1997 |
ElECtrical installations of buildings--Part 5:Selection and erection of electrical equipment--Chapter 53:Switchgear and controlgear 建筑物电气装置 第5部分:电气设备的选择和安装 第53章:开关设备和控制设备 |
China National Standards EC |
English PDF |
| GB/T 5095.9-1997 |
ElECtromechanical components for electronic equipment--Basic testing procedures and measuring methods--Part 9:Miscellaneous tests 电子设备用机电元件 基本试验规程及测量方法 第9部分:杂项试验 |
China National Standards EC |
English PDF |
| GB/T 5095.8-1997 |
ElECtromechanical components for electronic equipment--Basic testing procedures and measuring methods--Part 8:Connector tests(mechanical)and mechanical tests on contacts and terminations 电子设备用机电元件 基本试验规程及测量方法 第8部分:连接器、接触件及引出端的机械试验 |
China National Standards EC |
English PDF |
| GB/T 5095.7-1997 |
ElECtromechanical components for electronic equipment--Basic testing procedures and measuring methods--Part 7:Mechanical operating tests and sealing tests 电子设备用机电元件 基本试验规程及测量方法 第7部分:机械操作试验和密封性试验 |
China National Standards EC |
English PDF |
| GB/T 5095.6-1997 |
ElECtromechanical components for electronic equipment--Basic testing proceduresand measuring methods--Part 6:Climatic tests and soldering tests 电子设备用机电元件 基本试验规程及测量方法 第6部分:气候试验和锡焊试验 |
China National Standards EC |
English PDF |
| GB/T 5095.5-1997 |
ElECtromechanical components for electronic equipment--Basic testing procedures and measuring methods--Part 5:Impact tests(free components)，static load tests(fixed components)，endurance tests and overload tests 电子设备用机电元件 基本试验规程及测量方法 第5部分:撞击试验(自由元件)、静负荷试验(固定元件)、寿命试验和过负荷试验 |
China National Standards EC |
English PDF |
| GB/T 5095.4-1997 |
ElECtromechanical components for electronic equipment--Basic testing procedures and measuring methods--Part 4:Dynamic stress tests 电子设备用机电元件 基本试验规程及测量方法 第4部分:动态应力试验 |
China National Standards EC |
English PDF |
| GB/T 5095.3-1997 |
ElECtromechanical components for electronic equipment--Basic testing procedures and measuring methods--Part 3:Current-carrying capacity tests 电子设备用机电元件 基本试验规程及测量方法 第3部分:载流容量试验 |
China National Standards EC |
English PDF |
| GB/T 5095.2-1997 |
ElECtromechanical components for electronic equipment--Basic testing procedures and measuring methods--Part 2:Generalexamination，electrical continuity and contact resistance tests，insulationtests and voltage stress tests 电子设备用机电元件 基本试验规程及测量方法 第2部分:一般检查、电连续性和接触电阻测试、绝缘试验和电压应力试验 |
China National Standards EC |
English PDF |
| GB/T 5095.15-1997 |
ElECtromechanical components for electronic equipment--Basic testing procedures and measuring methods--Part 15:Mechanical tests on contacts and terminations--Section 8:Test 15h--Contact retention system resistance to tool application 电子设备用机电元件 基本试验规程及测量方法 第15部分:接触件和引出端的机械试验 第八篇:试验15h接触件固定机构耐工具使用性 |
China National Standards EC |
English PDF |
| GB/T 5095.12-1997 |
ElECtromechanical components for electronic equipment--Basic testing procedures and measuring methods--Part 12:Soldering tests--Section 6:Test 12f--Sealing against flux and cleaning solvents inmachine soldering 电子设备用机电元件 基本试验规程及测量方法 第12部分:锡焊试验 第六篇:试验12f在机器焊接中封焊处耐焊剂和清洁剂 |
China National Standards EC |
English PDF |
| GB/T 5095.1-1997 |
ElECtromechanical components for electronic equipment--Basic testing procedures and measuringmethods--Part 1:General 电子设备用机电元件 基本试验规程及测量方法 第1部分:总则 |
China National Standards EC |
English PDF |
| GB/T 5095.11-1997 |
ElECtromechanical components for electronic equipment--Basic testing procedures and measuring methods--Part 11:Climatic tests 电子设备用机电元件 基本试验规程及测量方法 第11部分:气候试验 |
China National Standards EC |
English PDF |
| GB/T 17190-1997 |
PiezoelECtric ceramic filters for use in electronic equipment--A specification in the quality assessment system for electronic components--Part 1:Generic specification--Qualification approval 电子设备用压电陶瓷滤波器 电子元器件质量评定体系规范 第1部分:总规范 鉴定批准 |
China National Standards EC |
English PDF |
| GB/T 12865-1997 |
PiezoelECtric ceramic filters for use in electronic equipment--A specification in the quality assessment system forelectronic components--Part 2:Sectional specification--Qualification approval--Section 1:Blank detail specification--Assessment level E 电子设备用压电陶瓷滤波器 电子元器件质量评定体系规范 第2部分:分规范 鉴定批准 第一篇:空白详细规范 评定水平E |
China National Standards EC |
English PDF |
| GB/T 12864-1997 |
PiezoelECtric ceramic filters for use in electronic equipment--A specification in the quality assessment system for electronic components--Part 2:Sectional specification--Qualification approval 电子设备用压电陶瓷滤波器 电子元器件质量评定体系规范 第2部分:分规范 鉴定批准 |
China National Standards EC |
English PDF |
| GB/T 17192.3-1997 |
Information tEChnology--Computer graphics--Interfacing techniques for dialogues with graphical devices(CGI)--Functional specification--Part 3:Output 信息技术 计算机图形 与图形设备会话的接口技术(CGI) 功能说明 第3部分:输出 |
China National Standards EC |
English PDF |
| GB/T 17192.2-1997 |
Information tEChnology--Computer graphics--Interfacing techniques for dialogues with graphical devices(CGI)--Functional specification--Part 2:Control 信息技术 计算机图形 与图形设备会话的接口技术(CGI) 功能说明 第2部分:控制 |
China National Standards EC |
English PDF |
| GB/T 17192.1-1997 |
Information tEChnology--Computer graphics--Interfacing techniques for dialogues with graphical devices(CGI)--Functional specification--Part1:Overview，profile，and conformance 信息技术 计算机图形 与图形设备会话的接口技术(CGI) 功能说明 第1部分:概述、轮廓和一致性 |
China National Standards EC |
English PDF |
| GB/T 17191.3-1997 |
Information tEChnology--Coding of moving pictures and associatedaudio for digital storage media at up to about 1.5Mbit/s--Part 3:Audio 信息技术 具有1.5Mbit/s 数据传输率的数字存储媒体运动图像及其伴音的编码 第3部分:音频 |
China National Standards EC |
English PDF |
| GB/T 17191.2-1997 |
Information tEChnology--Coding of moving pictures and associatedaudio for digital storage media at up to about 1.5Mbit/s--Part 2:Video 信息技术 具有1.5Mbit/s 数据传输率的数字存储媒体运动图像及其伴音的编码 第2部分:视频 |
China National Standards EC |
English PDF |
| GB/T 17191.1-1997 |
Information tEChnology--Coding of moving pictures and associatedaudio for digital storage media at up to about 1.5Mbit/s--Part 1:Systems 信息技术 具有1.5Mbit/s 数据传输率的数字存储媒体运动图像及其伴音的编码 第1部分:系统 |
China National Standards EC |
English PDF |
| GB/T 16964.3-1997 |
Information tEChnology--Font information interchange--Part 3:Glyph shape representation 信息技术 字型信息交换 第3部分:字形形状表示 |
China National Standards EC |
English PDF |
| GB/T 16964.2-1997 |
Information tEChnology--Font information interchange--Part 2:Interchange format 信息技术 字型信息交换 第2部分:交换格式 |
China National Standards EC |
English PDF |
| GB/T 6495.5-1997 |
Photovoltaic devices--Part 5:Determination of the equivalent cell temperature(ECT) of photovoltaic (PV) devices by the open-circuit voltage method 光伏器件 第5部分:用开路电压法确定光伏(PV)器件的等效电池温度(ECT) |
China National Standards EC |
English PDF |
| GB/T 17183-1997 |
High speed 25-position interface for data terminal equipment and data circuit-termination equipment，including alternative 26-position connECtor 数据终端设备和数据电路终接设备用的高速25插针接口暨可替换的26插针连接器 |
China National Standards EC |
English PDF |
| GB/T 17180-1997 |
Information processing systems--TelECommunications and information exchange between systems--End system to intermediatesystem routeing exchange protocol for use in conjunction with the protocol for providing the connectionless-mode network service 信息处理系统 系统间远程通信和信息交换与提供无连接方式的网络服务协议联合使用的端系统到中间系统路由选择交换协议 |
China National Standards EC |
English PDF |
| GB/T 17178.1-1997 |
Information tEChnology--Open systems interconnection--Conformance testing methodology and framework--Part 1:General concepts 信息技术 开放系统互连 一致性测试方法和框架 第1部分:基本概念 |
China National Standards EC |
English PDF |
| GB/T 17176-1997 |
Information tEChnology--Open systems interconnection--Application layer structure 信息技术 开放系统互连 应用层结构 |
China National Standards EC |
English PDF |
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