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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.
  •  China "extension" GB Standards English PDF List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 23031.6-2023 Industrial Internet Platform Application Implementation Guide Part 6: Service-oriented extension
    工业互联网平台 应用实施指南 第6部分:服务化延伸
    China National Standards
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    English PDF
    GB/Z 25320.1003-2023 Power system management and its information exchange Data and communication security Part 100-3: Conformance test cases for IEC 62351-3 and secure communication extensions including the TCP/IP protocol suite
    电力系统管理及其信息交换 数据和通信安全 第100-3部分:IEC 62351-3的一致性测试用例和包括TCP/IP协议集的安全通信扩展
    China National Standards
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    GB/T 40384-2021 Plastics—Determination of the transient extensional viscosity of polymer melts
    塑料 聚合物熔体瞬态拉伸黏度的测定
    China National Standards
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    GB/T 39886-2021 Hyper-extension spinal orthoses
    脊柱过伸矫形器
    China National Standards
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    GB/T 40860-2021 Analysis requirements for design extension conditions of pressurized water reactor nuclear power plants
    压水堆核电厂设计扩展工况分析要求
    China National Standards
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    GB/T 24522-2020 Metallic materials—Method of test for the determination of resistance to stable crack extension using specimens of low constraint
    金属材料 低拘束试样测定稳态裂纹扩展阻力的试验方法
    China National Standards
    extension

    English PDF
    GB/T 38658-2020 Guidance for the extension of validity of type tests of AC metal enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including 40.5 kV
    3.6 kV~40.5 kV交流金属封闭开关设备和控制设备型式试验有效性的延伸导则
    China National Standards
    extension

    English PDF
    GB/T 39372-2020 Leather—Physical and mechanical tests—Determination of percentage extension
    皮革 物理和机械试验 伸长率的测定
    China National Standards
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    GB/T 38307-2019 Agricultural service—Guidelines for agricultural certified seed extension service
    农业社会化服务 农业良种推广服务通则
    China National Standards
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    GB/T 38307-2019 Agricultural service—Guidelines for agricultural certified seed extension service
    农业社会化服务 农业良种推广服务通则
    China National Standards
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    GB/T 13477.11-2017 Test method for building sealants—Part 11:Determination of tensile properties at maintained extension after immersion in wates
    建筑密封材料试验方法 第11部分:浸水后定伸粘结性的测定
    China National Standards
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    GB/T 13477.10-2017 Test method for building sealants—Part 10:Determination of tensile properties at maintained extension
    建筑密封材料试验方法 第10部分:定伸粘结性的测定
    China National Standards
    extension

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    GB/T 33407-2016 Agricultural service—Construction guidelines of services organization in agricultural technology extension
    农业社会化服务 农业技术推广服务组织建设指南
    China National Standards
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    GB/T 33408-2016 Agricultural service—Organizational requirements of agricultural technology extension service
    农业社会化服务 农业技术推广服务组织要求
    China National Standards
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    GB/T 30170.2-2016 Geographic information—Spatial referencing by coordinates—Part 2: extension for parametric values
    地理信息 基于坐标的空间参照 第2部分:参数值扩展
    China National Standards
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    GB/T 19710.2-2016 Geographic information—Metadata—Part 2: extensions for imagery and gridded data
    地理信息 元数据 第2部分:影像和格网数据扩展
    China National Standards
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    GB/T 32398-2015 Chinese internet email address—Technical specification for SMTP extension to support
    中文电子邮件地址 简单邮件传输协议扩展技术要求
    China National Standards
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    GB 2099.7-2015 Plugs and socket-outlets for household and similar purposes—Part 2-7:Particular requirements for cord extension sets
    家用和类似用途插头插座 第2-7部分:延长线插座的特殊要求
    China National Standards
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    GB/T 31468-2015 Petroleum and natural gas industries—Pipeline transportation systems—Recommended practice for pipeline life extension
    石油天然气工业 管道输送系统 管道延寿推荐作法
    China National Standards
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    GB/T 30997-2014 Programming languages―C―extensions to support embedded processors
    编程语言 C 支持嵌入式处理器的扩展
    China National Standards
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    GB/T 4989-2013 extension and compensating cables for thermocouples
    热电偶用补偿导线
    China National Standards
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    GB/T 3916-2013 Textiles - Yarns from packages - Determination of single-end breaking force and elongation at break using constant rate of extension (CRE) tester
    纺织品 卷装纱 单根纱线断裂强力和断裂伸长率的测定(CRE法)
    China National Standards
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    GB 29280-2012 Information technology - Tibetan ideogram coded character set (extension set B) - 24×48 dot matrix font - Bkav bstan bold
    信息技术 藏文编码字符集(扩充集B) 24×48点阵字型 甘丹黑体
    China National Standards
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    GB 29279-2012 Information technology - Tibetan ideogram coded character set (extension set B) - 24×48 dot matrix font - Bkav bstan lean
    信息技术 藏文编码字符集(扩充集B) 24×48点阵字型 甘丹白体
    China National Standards
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    English PDF
    GB 29278-2012 Information technology - Tibetan ideogram coded character set (extension set B) - 16×32 dot matrix font - Bkav bstan bold
    信息技术 藏文编码字符集(扩充集B) 16×32点阵字型 甘丹黑体
    China National Standards
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    GB 29277-2012 Information technology - Tibetan ideogram coded character set (extension set B) - 16×32 dot matrix font - Bkav bstan lean
    信息技术 藏文编码字符集(扩充集B) 16×32点阵字型 甘丹白体
    China National Standards
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    GB 29276-2012 Information technology - Tibetan ideogram coded character set (basic set & extension set A) - 24×48 dot matrix font - Bkav bstan bold
    信息技术 藏文编码字符集(基本集及扩充集A) 24×48点阵字型 甘丹黑体
    China National Standards
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    English PDF
    GB 29275-2012 Information technology - Tibetan ideogram coded character set (basic set & extension set A) - 24×48 dot matrix font - Bkav bstan lean
    信息技术 藏文编码字符集(基本集及扩充集A) 24×48点阵字型 甘丹白体
    China National Standards
    extension

    English PDF
    GB 29274-2012 Information technology - Tibetan ideogram coded character set (basic set & extension set A) - 16×32 dot matrix font - Bkav bstan bold
    信息技术 藏文编码字符集(基本集及扩充集A) 16×32点阵字型 甘丹黑体
    China National Standards
    extension

    English PDF
    GB 29273-2012 Information technology - Tibetan ideogram coded character set (basic set & extension set A) - 16×32 dot matrix font - Bkav bstan lean
    信息技术 藏文编码字符集(基本集及扩充集A) 16×32点阵字型 甘丹白体
    China National Standards
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    GB/T 20719.43-2010 Industrial automation systems and integration - Process specification language - Part 43:Definitional extension:Activity ordering and duration extensions
    工业自动化系统与集成 过程规范语言 第43部分:定义性扩展:活动次序和持续时间扩展
    China National Standards
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    GB/T 20719.41-2010 Industrial automation system and integration - Process specification language - Part 41:Definitional extension:Activity extensions
    工业自动化系统与集成 过程规范语言 第41部分:定义性扩展:活动扩展
    China National Standards
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    GB 25913-2010 Information technology - Tibetan ideogram codedcharacter set (extension set B) 24×48 dot matrix font - Ucen Khyungyik
    信息技术 藏文编码字符集(扩充集B) 24×48点阵字型 吾坚琼体
    China National Standards
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    GB/T 4990-2010 Alloy wires of extension and compensating cables for thermocouples
    热电偶用补偿导线合金丝
    China National Standards
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    GB/T 757-2010 Conical shaft extension for rotating electrical machines
    旋转电机 圆锥形轴伸
    China National Standards
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    GB/T 756-2010 Cylindrical shaft extension for rotating electrical machines
    旋转电机 圆柱形轴伸
    China National Standards
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    GB/T 20719.44-2010 Industrial automation system and integration - Process specification language - Part 44: Definitional extension - Resource extensions
    工业自动化系统与集成 过程规范语言 第44部分:定义性扩展 资源扩展
    China National Standards
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    GB/T 24522-2009 Metallic materials - Method of test for the determination of resistance to stable crack extension using specimens of low constraint
    金属材料 低拘束试样测定稳定裂纹扩展阻力的试验方法
    China National Standards
    extension

    English PDF
    GB/T 1239.1-2009 Cold coiled helical springs technical specifications - Part 1: extension spring
    冷卷圆柱螺旋弹簧技术条件 第1部分:拉伸弹簧
    China National Standards
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    GB/T 22543.1-2008 Instrument for dam monitoring - Exte nsion line gauge - Part 1: Step motor type extension line gauge
    大坝监测仪器 引张线仪 第1部分:步进电机式引张线仪
    China National Standards
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    GB/T 22417-2008 Fork-lift trucks - Fork-arm extensions and telescopic fork arms - Technical characteristics and strength requirements
    叉车 货叉叉套和伸缩式货叉 技术性能和强度要求
    China National Standards
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    GB/T 13807.3-2008 Connections with waisted stud - Nuts,extension sleeves
    腰状杆螺柱连接副 螺母、受力套管
    China National Standards
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    GB 22323-2008 Information technology - Tibetan coded character set (basic set & extension set A) - 24×48 dot matrix font - Ucen khyungyik
    信息技术 藏文编码字符集(基本集及扩充集A) 24×48点阵字型 吾坚琼体
    China National Standards
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    GB/T 21547.4-2008 VMEbus extensions for intrumentation - Part 4: TCP/IP-IEEE488.2 instrument interface specification
    VME总线对仪器的扩展 第4部分:TCP/IP-IEEE488.2仪器接口规范
    China National Standards
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    GB/T 22238-2008 Information technology - Tibetan coded character set - extension B
    信息技术 藏文编码字符集 扩充集B
    China National Standards
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    GB/T 21547.3-2008 VMEbus extensions for instrumentation - Part 3: TCP/IP-IEEE488.1 Interface specification
    VME总线对仪器的扩展 第3部分:TCP/IP-IEEE488.1 接口规范
    China National Standards
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    GB/T 21547.2-2008 VMEbus extensions for instrumentation -Part 2: TCP/IP-VXIbus Interface specification
    VME总线对仪器的扩展 第2部分:TCP/IP-VXI总线接口规范
    China National Standards
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    GB/T 21547.1-2008 VME bus extensions for instrumentation - Part 1: TCP/IP Instrument protocol specification
    VME总线对仪器的扩展 第1部分: TCP/IP仪器协议规范
    China National Standards
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    GB/T 6482-2007 Thread extension steel bars for rock drilling
    凿岩用螺纹连接钎杆
    China National Standards
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    GB/T 21077.2-2007 Banking - Certificate management - Part 2: Certificate extensions
    银行业务 证书管理 第2部分: 证书扩展项
    China National Standards
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    GB/T 17564.5-2007 Standard data element types with associated classification scheme for electric components - Part 5: extensions to the EXPRESS dictionary schema
    电气元器件的标准数据元素类型和相关分类模式 第5部分: EXPRESS 字典模式扩展
    China National Standards
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    GB/T 20542-2006 Infromation technology - Tibetan coded character set - extension A
    信息技术 藏文编码字符集 扩充集A
    China National Standards
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    English PDF
    GB/Z 19717-2005 Secure message interchange based on Multipurpose Internet Mail extensions
    基于多用途互联网邮件扩展(MIME)的安全报文交换
    China National Standards
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    GB/T 13477.10-2002 Test method for building sealants--Part 10:Determination of tensile properties at maintained extension
    建筑密封材料试验方法 第10部分:定伸粘结性的测定
    China National Standards
    extension

    English PDF
    GB/T 13477.11-2002 Test method for building sealants--Part 11:Determination of adhesion/cohesion properties at maintained extension after immersion in water
    建筑密封材料试验方法 第11部分:浸水后定伸粘结性的测定
    China National Standards
    extension

    English PDF
    GB/T 17975.9-2000 Information technology--Generic coding of moving pictures and associated audio information--Part 9:extension for real time interface for systems decoders
    信息技术 运动图像及其伴音信息的通用编码 第9部分:系统解码器的实时接口扩展
    China National Standards
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    GB/T 2311-2000 Information technology--Character code structure and extension techniques
    信息技术 字符代码结构与扩充技术
    China National Standards
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    GB/T 2414.2-1998 Test methods for the properties of piezoelectric ceramics--Transverse length extension vibration mode for bar
    压电陶瓷材料性能试验方法 长条横向长度伸缩振动模式
    China National Standards
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    GB/T 2414.1-1998 Test methods for the properties of piezoelectric ceramics--Radial extension vibration mode for disk
    压电陶瓷材料性能试验方法 圆片径向伸缩振动模式
    China National Standards
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    GB/T 13142-1991 extension of the Latin alphabet coded character set for bibliographic information interchange
    书目信息交换用拉丁字母代码字符扩充集
    China National Standards
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    GB/T 7419-1987 Information processing--Implementation of the 7-bit coded character set and its 7-bit and 8-bit extensions on 3.81mm magnetic tape cassette for data interchange
    信息处理 数据交换用七位编码字符集及其七位与八位扩充在3.81mm盒式磁带上的实现方法
    China National Standards
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