China National Standards

China 4: GB Standards List


  •  China "4:" GB Standards List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 43407.4-2023 Road vehicles Ergonomic requirements for driving areas of low-floor passenger buses running on dedicated lines Part 4: Driving area environment {译}
    道路车辆 低地板专线行驶客车驾驶区人体工程学要求 第4部分:驾驶区环境
    China National Standards
    4:

    English PDF
    GB/T 43330.4-2023 Ship's ballast water treatment systems Part 4: Discharge sampling devices and procedures {译}
    船舶压载水处理系统 第4部分:排放取样装置和规程
    China National Standards
    4:

    English PDF
    GB/T 32151.14-2023 Carbon emission accounting and reporting requirements Part 14: Other non-ferrous metal smelting and rolling processing enterprises {译}
    碳排放核算与报告要求 第14部分:其他有色金属冶炼和压延加工企业
    China National Standards
    4:

    English PDF
    GB/T 31308.4-2023 Data elements, processes and documents in administration, commerce and industry Long-lasting signatures Part 4: Attestation object attributes for long-lasting signature formats {译}
    行政、商业和行业中的数据元、过程和文档 长效签名 第4部分:用于长效签名格式的存证对象属性
    China National Standards
    4:

    English PDF
    GB/T 23031.4-2023 Industrial Internet Platform Application Implementation Guide Part 4: Networked Collaboration {译}
    工业互联网平台 应用实施指南 第4部分:网络化协同
    China National Standards
    4:

    English PDF
    GB/Z 41275.4-2023 Avionics Process Management Aerospace and Defense Electronic Systems Containing Lead-Free Solder Part 4: Ball Grid Array Ball Installation {译}
    航空电子过程管理 含无铅焊料航空航天及国防电子系统 第4部分:球栅阵列植球
    China National Standards
    4:

    English PDF
    GB/T 7256.4-2023 Civil airport navigation aids Part 4: Wind vane {译}
    民用机场助航灯具 第4部分:风向标
    China National Standards
    4:

    English PDF
    GB/T 7000.224-2023 Luminaires Part 2-24: Special requirements Limited surface temperature luminaires {译}
    灯具 第2-24部分:特殊要求 限制表面温度灯具
    China National Standards
    4:

    English PDF
    GB/T 7000.204-2023 Luminaires Part 2-4: Special requirements for portable general purpose luminaires {译}
    灯具 第2-4部分:特殊要求 可移式通用灯具
    China National Standards
    4:

    English PDF
    GB/Z 6113.404-2023 Specification for radio disturbance and immunity measuring equipment and measurement methods Part 4-4: Uncertainty, statistics and limit value modeling Statistics of complaints and limit value calculation model for the protection of radio services {译}
    无线电骚扰和抗扰度测量设备和测量方法规范 第4-4部分:不确定度、统计学和限值建模 投诉的统计和保护无线电业务的限值计算模型
    China National Standards
    4:

    English PDF
    GB/T 4893.4-2023 Testing of physical and chemical properties of paint films on furniture surfaces Part 4: Adhesion cross-cut determination method {译}
    家具表面漆膜理化性能试验 第4部分:附着力交叉切割测定法
    China National Standards
    4:

    English PDF
    GB/T 18916.14-2023 Water quotas Part 14: Woolen textile products {译}
    取水定额 第14部分:毛纺织产品
    China National Standards
    4:

    English PDF
    GB/T 29165.4-2023 Oil and gas industry Glass fiber reinforced plastic pipes Part 4: Assembly, installation and operation {译}
    石油天然气工业 玻璃纤维增强塑料管 第4部分:装配、安装与运行
    China National Standards
    4:

    English PDF
    GB/T 25684.14-2023 Earthmoving machinery - Safety Part 14: Requirements for small implement carriers {译}
    土方机械 安全 第14部分:小型机具承载机的要求
    China National Standards
    4:

    English PDF
    GB/T 30117.4-2023 Photobiosafety of lamps and lamp systems Part 4: Measurement methods {译}
    灯和灯系统的光生物安全 第4部分:测量方法
    China National Standards
    4:

    English PDF
    GB/T 21413.4-2023 Rail transit - Electrical equipment for rolling stock - Part 4: Electrical components - Rules for AC circuit breakers {译}
    轨道交通 机车车辆电气设备 第4部分:电工器件 交流断路器规则
    China National Standards
    4:

    English PDF
    GB/T 42513.4-2023 Methods for chemical analysis of nickel alloys Part 4: Determination of silicon content Nitrous oxide-flame atomic absorption spectrometry and molybdenum blue spectrophotometry {译}
    镍合金化学分析方法 第4部分:硅含量的测定 一氧化二氮-火焰原子吸收光谱法和钼蓝分光光度法
    China National Standards
    4:

    English PDF
    GB/T 27612.4-2023 Agricultural irrigation equipment sprinkler heads Part 4: Durability test methods {译}
    农业灌溉设备 喷头 第4部分:耐久性试验方法
    China National Standards
    4:

    English PDF
    GB/T 18690.4-2023 Agricultural irrigation equipment - Filters for micro-irrigation - Part 4: Granular media filters {译}
    农业灌溉设备 微灌用过滤器 第4部分:颗粒介质过滤器
    China National Standards
    4:

    English PDF
    GB/T 40283.4-2023 Automation Systems and Integration Competency Unit Interoperability for Manufacturing Application Solutions Part 4: Competency Unit Assessment of Manufacturing Application Requirements {译}
    自动化系统与集成 制造应用解决方案的能力单元互操作 第4部分:制造应用需求的能力单元评估
    China National Standards
    4:

    English PDF
    GB/T 43258.4-2023 Road vehicles Diagnostic communications over Internet Protocol (DoIP) Part 4: Ethernet-based high-speed data link connectors {译}
    道路车辆 基于因特网协议的诊断通信 (DoIP) 第4部分: 基于以太网的高速数据链路连接器
    China National Standards
    4:

    English PDF
    GB/T 43253.4-2023 Road vehicles Functional safety audit and assessment methods Part 4: Hardware level {译}
    道路车辆 功能安全审核及评估方法 第4部分:硬件层面
    China National Standards
    4:

    English PDF
    GB/T 23101.4-2023 Surgical implants Hydroxyapatite Part 4: Determination of coating bond strength {译}
    外科植入物 羟基磷灰石 第4部分:涂层粘结强度的测定
    China National Standards
    4:

    English PDF
    GB/T 17529.4-2023 Acrylic acids and esters for industrial use Part 4: n-Butyl acrylate for industrial use {译}
    工业用丙烯酸及酯 第4部分:工业用丙烯酸正丁酯
    China National Standards
    4:

    English PDF
    GB/T 43326.4-2023 Snow blowers - Safety requirements and test methods - Part 4: Additional national and regional requirements {译}
    抛雪机 安全要求和试验方法 第4部分:国家和地区的附加要求
    China National Standards
    4:

    English PDF
    GB/T 15558.4-2023 Buried polyethylene (PE) piping systems for gas use Part 4: Valves {译}
    燃气用埋地聚乙烯(PE)管道系统 第4部分:阀门
    China National Standards
    4:

    English PDF
    GB/T 13871.4-2023 Rotating shaft lip seals with elastomer sealing elements - Part 4: Performance test procedures {译}
    密封元件为弹性体材料的旋转轴唇形密封圈 第4部分:性能试验程序
    China National Standards
    4:

    English PDF
    GB/T 43316.4-2023 Plastics - Determination of environmental stress cracking (ESC) resistance - Part 4: Ball or pin pressure method {译}
    塑料 耐环境应力开裂(ESC)的测定 第4部分:球压或针压法
    China National Standards
    4:

    English PDF
    GB/T 5338.4-2023 Series 1 containers Technical requirements and test methods Part 4: Unpressurized dry bulk containers {译}
    系列1集装箱 技术要求和试验方法 第4部分:无压干散货集装箱
    China National Standards
    4:

    English PDF
    GB 16994.4-2023 Safety requirements for port operations Part 4: General cargo containers {译}
    港口作业安全要求 第4部分:普通货物集装箱
    China National Standards
    4:

    English PDF
    GB/Z 40602.4-2023 Radio interference from antennas and receiving systems Part 4: Wireless receiving systems Electromagnetic compatibility test methods for electronic equipment with integrated wireless modules {译}
    天线及接收系统的无线电干扰 第4部分:无线接收系统 集成无线模块电子设备电磁兼容测试方法
    China National Standards
    4:

    English PDF
    GB/Z 18975.4-2023 Industrial Automation Systems and Integration Process Plant (Including Oil and Gas Production Facilities) Life Cycle Data Integration Part 4: Initial Reference Data {译}
    工业自动化系统与集成 流程工厂(包括石油和天然气生产设施)生命周期数据集成 第4部分:初始参考数据
    China National Standards
    4:

    English PDF
    GB/T 7409.4-2023 Synchronous motor excitation system Part 4: Technical requirements for small and medium-sized synchronous motor excitation system {译}
    同步电机励磁系统 第4部分:中小型同步电机励磁系统技术要求
    China National Standards
    4:

    English PDF
    GB/T 5170.14-2023 Inspection methods for environmental testing equipment Part 14: Electric vibration system for vibration (sinusoidal) testing {译}
    环境试验设备检验方法 第14部分:振动(正弦)试验用电动式振动系统
    China National Standards
    4:

    English PDF
    GB/T 5169.34-2023 Fire hazard tests for electrical and electronic products Part 34: Guidelines for fire hazard assessment Ignitability Summary and relevance of test methods {译}
    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
    4:

    English PDF
    GB/T 43201.4-2023 Industrial Automation Systems and Integration Standardized Procedures for Production Systems Engineering Part 4: Key Performance Indicators in the Production Planning Process {译}
    工业自动化系统与集成 生产系统工程的标准化程序 第4部分:生产计划过程中的关键绩效指标
    China National Standards
    4:

    English PDF
    GB/T 43077.4-2023 Hydraulic Transmission Connections Plain Threaded Flat Ports and Stud Ends Part 4: Hexagonal Screw Plug {译}
    液压传动连接 普通螺纹平油口和螺柱端 第4部分:六角螺塞
    China National Standards
    4:

    English PDF
    GB/T 42983.4-2023 Industrial Robot Operation and Maintenance Part 4: Predictive Maintenance {译}
    工业机器人 运行维护 第4部分:预测性维护
    China National Standards
    4:

    English PDF
    GB/T 29493.4-2023 Determination of harmful substances in textile dyeing and finishing auxiliaries Part 4: Determination of polycyclic aromatic hydrocarbons (PAHs) {译}
    纺织染整助剂中有害物质的测定 第4部分:多环芳烃化合物(PAHs)的测定
    China National Standards
    4:

    English PDF
    GB/T 28059.4-2023 Highway Network Image Information Management System Platform Interconnection Technical Specifications Part 4: User and Equipment Management {译}
    公路网图像信息管理系统 平台互联技术规范 第4部分:用户及设备管理
    China National Standards
    4:

    English PDF
    GB/T 26949.24-2023 Industrial Vehicles Stability Verification Part 24: Off-Road Slewing Telescopic Forklift {译}
    工业车辆 稳定性验证 第24部分:越野型回转伸缩臂式叉车
    China National Standards
    4:

    English PDF
    GB/T 22317.4-2023 Quality-assessed piezoelectric filters Part 4: Sub-specifications Capability approval {译}
    有质量评定的压电滤波器 第4部分:分规范 能力批准
    China National Standards
    4:

    English PDF
    GB/T 20688.4-2023 Rubber Bearings Part 4: Ordinary Rubber Bearings {译}
    橡胶支座 第4部分:普通橡胶支座
    China National Standards
    4:

    English PDF
    GB/T 20234.4-2023 Connecting devices for conductive charging of electric vehicles Part 4: High-power DC charging interface {译}
    电动汽车传导充电用连接装置 第4部分:大功率直流充电接口
    China National Standards
    4:

    English PDF
    GB/T 17693.14-2023 Guidelines for Translating and Writing Chinese Characters of Place Names in Foreign Languages Part 14: Vietnamese {译}
    外语地名汉字译写导则 第14部分:越南语
    China National Standards
    4:

    English PDF
    GB/T 10357.4-2023 Furniture mechanical properties test Part 4: Cabinet stability {译}
    家具力学性能试验 第4部分:柜类稳定性
    China National Standards
    4:

    English PDF
    GB/T 42629.4-2023 International Code of Conduct for Environmental Surveys of Seabed Areas and High Seas Part 4: Survey of Physical Properties of Marine Sediments {译}
    国际海底区域和公海环境调查规程 第4部分:海洋沉积物物理特性调查
    China National Standards
    4:

    English PDF
    GB/T 28712.4-2023 Heat exchanger types and basic parameters Part 4: Thermosiphon reboiler {译}
    热交换器型式与基本参数 第4部分:热虹吸式重沸器
    China National Standards
    4:

    English PDF
    GB/T 6150.4-2023 Chemical analysis methods for tungsten concentrates Part 4: Determination of sulfur content High-frequency induction infrared absorption method and combustion-iodometric method {译}
    钨精矿化学分析方法 第4部分:硫含量的测定 高频感应红外吸收法和燃烧-碘量法
    China National Standards
    4:

    English PDF
    GB/T 20147.4-2023 Colorimetry Part 4: CIE 1976 L* a* b* color space {译}
    色度学 第4部分:CIE 1976 L* a* b*颜色空间
    China National Standards
    4:

    English PDF
    GB/T 20564.14-2023 High-strength cold-rolled steel plates and strips for automobiles Part 14: Low-density steel {译}
    汽车用高强度冷连轧钢板及钢带 第14部分:低密度钢
    China National Standards
    4:

    English PDF
    GB/T 713.4-2023 Steel plates and strips for pressure equipment Part 4: Nickel alloy steels with specified low temperature properties {译}
    承压设备用钢板和钢带 第4部分:规定低温性能的镍合金钢
    China National Standards
    4:

    English PDF
    GB/T 20818.14-2023 Industrial process measurement and control - Data structures and elements in process equipment catalogs - Part 14: List of properties (LOP) for electronic data exchange of temperature measuring equipment {译}
    工业过程测量和控制 过程设备目录中的数据结构和元素 第14部分:温度测量设备电子数据交换用属性列表(LOP)
    China National Standards
    4:

    English PDF
    GB/T 15092.4-2023 Appliance switches Part 2-4: Special requirements for independently installed switches {译}
    器具开关 第2-4部分:独立安装开关的特殊要求
    China National Standards
    4:

    English PDF
    GB/T 42658.4-2023 Surface Chemical Analysis Sample Handling, Preparation and Setup Guide Part 4: Reporting information on the origin, preparation, handling and set-up of nanoobjects prior to surface analysis {译}
    表面化学分析 样品处理、制备和安装指南 第4部分: 报告表面分析前纳米物体相关的来历、制备、处理和安装信息
    China National Standards
    4:

    English PDF
    GB/T 42924.4-2023 Plastics. Smoke generation. Determination of corrosiveness of combustion streams. Part 4: Dynamic decomposition method using a cone corrosion meter. {译}
    塑料 烟雾产生 燃烧流腐蚀性的测定 第4部分:使用锥形腐蚀计的动态分解法
    China National Standards
    4:

    English PDF
    GB/T 42919.4-2023 Plastics - Determination of thermal conductivity and thermal diffusivity - Part 4: Laser flash method {译}
    塑料 导热系数和热扩散系数的测定 第4部分:激光闪光法
    China National Standards
    4:

    English PDF
    GB/T 33061.4-2023 Plastics - Determination of dynamic mechanical properties - Part 4: Non-resonant tensile vibration method {译}
    塑料 动态力学性能的测定 第4部分: 非共振拉伸振动法
    China National Standards
    4:

    English PDF
    GB/T 22188.4-2023 Ergonomic Design of Control Centers Part 4: Workstation Layout and Dimensions {译}
    控制中心的人类工效学设计 第4部分:工作站的布局和尺寸
    China National Standards
    4:

    English PDF
    GB/T 4798.4-2023 Classification of environmental conditions Classification of environmental parameter groups and their severity levels Part 4: Stationary use in places without weather protection {译}
    环境条件分类 环境参数组分类及其严酷程度分级 第4部分:无气候防护场所固定使用
    China National Standards
    4:

    English PDF
    GB/T 19749.4-2023 Coupling capacitors and capacitive voltage dividers - Part 4: DC or AC single-phase capacitive voltage dividers {译}
    耦合电容器及电容分压器 第4部分:直流或交流单相电容分压器
    China National Standards
    4:

    English PDF
    GB/T 26237.14-2023 Information technology - Biometric data exchange format - Part 14: DNA data {译}
    信息技术 生物特征识别数据交换格式 第14部分:DNA数据
    China National Standards
    4:

    English PDF
    GB/T 4678.14-2023 Die-casting mold parts - Part 14: Stop pins {译}
    压铸模 零件 第14部分:限位钉
    China National Standards
    4:

    English PDF
    GB/T 42691.4-2023 Road vehicles - Local area interconnect network (LIN) - Part 4: 12V/24V electrical physical layer specification {译}
    道路车辆 局域互联网络(LIN) 第4部分:12V/24V电气物理层规范
    China National Standards
    4:

    English PDF
    GB/T 14034.4-2023 Hydraulic power connections - Metallic pipe fittings - Part 4: 60° cone {译}
    液压传动连接 金属管接头 第4部分:60°锥形
    China National Standards
    4:

    English PDF
    GB/T 10827.4-2023 Industrial vehicles - Safety requirements and verification - Part 4: Unmanned industrial vehicles and their systems {译}
    工业车辆 安全要求和验证 第4部分:无人驾驶工业车辆及其系统
    China National Standards
    4:

    English PDF
    GB/T 31887.4-2023 Bicycles - Lighting and retro-reflective devices - Part 4: Lighting systems powered by bicycle generators {译}
    自行车 照明和回复反射装置 第4部分:自行车发电机供电的照明系统
    China National Standards
    4:

    English PDF
    GB/T 27698.4-2023 Performance test methods for heat exchangers and heat transfer elements - Part 4: Noise determination of air coolers {译}
    热交换器及传热元件性能测试方法 第4部分:空冷器噪声测定
    China National Standards
    4:

    English PDF
    GB/T 18453.4-2023 Cranes - Maintenance manual - Part 4: Jib cranes {译}
    起重机 维护手册 第4部分:臂架起重机
    China National Standards
    4:

    English PDF
    GB/T 17909.4-2023 Cranes - Operating manual - Part 4: Jib cranes {译}
    起重机 操作手册 第4部分:臂架起重机
    China National Standards
    4:

    English PDF
    GB/T 42756.4-2023 Card and identification security devices - Contactless proximity objects - Part 4: Transmission protocols {译}
    卡及身份识别安全设备 无触点接近式对象 第4部分:传输协议
    China National Standards
    4:

    English PDF
    GB/T 8190.4-2023 Reciprocating internal combustion engines - Emissions measurement - Part 4: Steady-state and transient test cycles for engines of different uses {译}
    往复式内燃机 排放测量 第4部分:不同用途发动机的稳态和瞬态试验循环
    China National Standards
    4:

    English PDF
    GB/T 42474.4-2023 Safety Monitoring System for Vehicle Transportation of Explosive Hazardous Chemicals Part 4: Monitoring Client {译}
    爆炸危险化学品汽车运输安全监控系统 第4部分:监控客户端
    China National Standards
    4:

    English PDF
    GB/T 42749.4-2023 Information technology - IT enablement service business process outsourcing (ITES-BPO) life cycle process - Part 4: Terminology and concepts {译}
    信息技术 IT赋能服务业务过程外包(ITES-BPO)生存周期过程 第4部分:术语和概念
    China National Standards
    4:

    English PDF
    GB/T 15879.604-2023 Mechanical standardization of semiconductor devices - Part 6-4: General rules for drawing outline drawings of surface mount semiconductor device packages - Dimensional measurement methods for ball array (BGA) packages {译}
    半导体器件的机械标准化 第6-4部分:表面安装半导体器件封装外形图绘制的一般规则 焊球阵列(BGA)封装的尺寸测量方法
    China National Standards
    4:

    English PDF
    GB/T 39545.4-2023 Design and selection of components for enclosed gear drives - Part 4: Balance classes for flexible couplings {译}
    闭式齿轮传动装置的零部件设计和选择 第4部分:挠性联轴器平衡等级
    China National Standards
    4:

    English PDF
    GB/T 41339.4-2023 Technical Guidelines for Marine Ecological Restoration Part 4: Ecological Restoration of Seagrass Beds {译}
    海洋生态修复技术指南 第4部分:海草床生态修复
    China National Standards
    4:

    English PDF
    GB/T 5750.4-2023 Standard test methods for drinking water - Part 4: Sensory properties and physical indicators {译}
    生活饮用水标准检验方法 第4部分:感官性状和物理指标
    China National Standards
    4:

    English PDF
    GB/T 42467.4-2023 Clinical Terminology of Traditional Chinese Medicine Part 4: Anorectal Science {译}
    中医临床名词术语 第4部分:肛肠科学
    China National Standards
    4:

    English PDF
    GB/Z 42468.4-2023 Specifications for Rescue and Restoration of Paper Archives Part 4: Restoration Operation Guide {译}
    纸质档案抢救与修复规范 第4部分:修复操作指南
    China National Standards
    4:

    English PDF
    GB/T 2317.4-2023 Test methods for electrical fittings - Part 4: Rules for acceptance {译}
    电力金具试验方法 第4部分:验收规则
    China National Standards
    4:

    English PDF
    GB/T 33767.14-2023 Information technology - Biometric sample quality - Part 14: DNA data {译}
    信息技术 生物特征样本质量 第14部分:DNA数据
    China National Standards
    4:

    English PDF
    GB/T 37162.4-2023 Hydraulic transmission - Monitoring of particle contamination of liquids - Part 4: Application of shading technology {译}
    液压传动 液体颗粒污染度的监测 第4部分:遮光技术的应用
    China National Standards
    4:

    English PDF
    GB/T 16656.14-2023 Industrial Automation System and Integration Product Data Representation and Exchange Part 14: Description Method: EXPRESS-X Language Reference Manual {译}
    工业自动化系统与集成 产品数据表达与交换 第14部分:描述方法:EXPRESS-X语言参考手册
    China National Standards
    4:

    English PDF
    GB/T 21078.4-2023 Financial services - Personal identification number management and security - Part 4: Approved PIN encryption algorithms {译}
    金融服务 个人识别码管理与安全 第4部分:核准的PIN加密算法
    China National Standards
    4:

    English PDF
    GB/T 41734.4-2023 Radio frequency identification of animals - Part 4: Performance evaluation of radio frequency identification readers in accordance with GB/T 20563 and GB/T 22334 {译}
    动物射频识别 第4部分:符合GB/T 20563和GB/T 22334的射频识别读写器性能评估
    China National Standards
    4:

    English PDF
    GB/T 24421.4-2023 Guidelines for Standardization Work of Service Industry Organizations Part 4: Implementation and Evaluation of Standards {译}
    服务业组织标准化工作指南 第4部分:标准实施及评价
    China National Standards
    4:

    English PDF
    GB/T 30966.4-2023 Wind turbines - Communications for wind farm monitoring systems - Part 4: Mapping to communication protocols {译}
    风力发电机组 风力发电场监控系统通信 第4部分:映射到通信规约
    China National Standards
    4:

    English PDF
    GB/T 42383.4-2023 Intelligent Manufacturing Network Collaborative Design Part 4: Design Requirements for the Whole Life Cycle {译}
    智能制造 网络协同设计 第4部分:面向全生命周期设计要求
    China National Standards
    4:

    English PDF
    GB/T 42125.14-2023 Safety requirements for electrical equipment for measurement, control and laboratory use - Part 14: Particular requirements for automatic and semi-automatic laboratory equipment for analysis and other purposes {译}
    测量、控制和实验室用电气设备的安全要求 第14部分:实验室用分析和其他目的自动和半自动设备的特殊要求
    China National Standards
    4:

    English PDF
    GB/T 24721.4-2023 Glass fiber reinforced plastic products for road use - Part 4: Unpressurized communication manhole covers {译}
    公路用玻璃纤维增强塑料产品 第4部分:非承压通信井盖
    China National Standards
    4:

    English PDF
    GB/T 6346.14-2023 Fixed capacitors for electronic equipment - Part 14: Sectional specification Fixed capacitors for suppressing electromagnetic interference in power supplies {译}
    电子设备用固定电容器 第14部分:分规范 抑制电源电磁干扰用固定电容器
    China National Standards
    4:

    English PDF
    GB 9706.204-2022 Medical electrical equipment - Part 2-4: Particular requirements for basic safety and essential performance of cardiac defibrillators {译}
    医用电气设备 第2-4部分:心脏除颤器的基本安全和基本性能专用要求
    China National Standards
    4:

    English PDF
    GB/Z 28820.4-2022 Long-term radiation aging of polymers - Part 4: Effect of different temperatures and dose rates under radiation conditions {译}
    聚合物长期辐射老化 第4部分:辐射条件下不同温度和剂量率的影响
    China National Standards
    4:

    English PDF
    GB/T 26610.4-2022 Implementation Guidelines for Risk-Based Inspection of Pressure Equipment Systems Part 4: Quantitative Analysis Method of Failure Possibility {译}
    承压设备系统基于风险的检验实施导则 第4部分:失效可能性定量分析方法
    China National Standards
    4:

    English PDF
    GB/T 8005.4-2022 Terminology for aluminum and aluminum alloys - Part 4: Recycled aluminum {译}
    铝及铝合金术语 第4部分:回收铝
    China National Standards
    4:

    English PDF
    GB/T 26949.4-2022 Industrial vehicles—Verification of stability—Part 4: Pallet stackers, double-deck stackers and orderers with a lift height not greater than 1 200 mm at the operator's position {译}
    工业车辆 稳定性验证 第4部分:托盘堆垛车、双层堆垛车和操作者位置起升高度不大于1 200 mm的拣选车
    China National Standards
    4:

    English PDF
    GB/T 20564.4-2022 High-strength cold-rolled steel sheets and strips for automobiles - Part 4: Low-alloy high-strength steels {译}
    汽车用高强度冷连轧钢板及钢带 第4部分:低合金高强度钢
    China National Standards
    4:

    English PDF
    GB/T 32250.4-2022 Agricultural and forestry machinery Testing of sprayers in use Part 4: Stationary and semi-mobile sprayers {译}
    农林机械 在用喷雾机的检测 第4部分:固定式和半移动式喷雾机
    China National Standards
    4:

    English PDF
    GB/T 5900.4-2022 Machine tools - Dimensions of spindle end and chuck connections - Part 4: Cylindrical connections {译}
    机床 主轴端部与卡盘连接尺寸 第4部分:圆柱连接
    China National Standards
    4:

    English PDF
    GB/T 41588.4-2022 Road vehicles - Controller area network (CAN) - Part 4: Time-triggered communication {译}
    道路车辆 控制器局域网(CAN) 第4部分:时间触发通信
    China National Standards
    4:

    English PDF
    GB/T 41590.4-2022 Road vehicles K-line based diagnostic communication - Part 4: Emissions related system requirements {译}
    道路车辆 基于K线的诊断通信 第4部分:排放相关系统要求
    China National Standards
    4:

    English PDF
    GB/T 21944.4-2022 Silicon carbide special products - Reaction sintered silicon carbide kiln furniture - Part 4: Burner sleeves {译}
    碳化硅特种制品 反应烧结碳化硅窑具 第4部分:烧嘴套
    China National Standards
    4:

    English PDF
    GB/T 18916.4-2022 Water intake quota - Part 4: Textile dyeing and finishing products {译}
    取水定额 第4部分:纺织染整产品
    China National Standards
    4:

    English PDF
    GB/T 1927.14-2022 Test methods for physical and mechanical properties of small unblemished specimens of wood - Part 14: Determination of tensile strength along the grain {译}
    无疵小试样木材物理力学性质试验方法 第14部分:顺纹抗拉强度测定
    China National Standards
    4:

    English PDF
    GB/T 16886.4-2022 Biological evaluation of medical devices - Part 4: selection of interaction test with blood {译}
    医疗器械生物学评价 第4部分:与血液相互作用试验选择
    China National Standards
    4:

    English PDF
    GB/Z 41476.4-2022 Non destructive testing instruments - radiation protection rules for X-ray equipment up to 1mV - Part 4: Calculation of control area {译}
    无损检测仪器 1MV以下X射线设备的辐射防护规则 第4部分:控制区域的计算
    China National Standards
    4:

    English PDF
    GB/T 21098-2022 Lamp caps and holders and gauges for checking their safety and interchangeability - Part 4: guidelines and general information {译}
    灯头、灯座及检验其安全性和互换性的量规 第4部分:导则及一般信息
    China National Standards
    4:

    English PDF
    GB/T 20887.4-2022 High strength hot rolled steel sheet and strip for automobile part 4: transformation induced plastic steel {译}
    汽车用高强度热连轧钢板及钢带 第4部分:相变诱导塑性钢
    China National Standards
    4:

    English PDF
    GB/T 19769.4-2022 Function blocks - Part 4: Rules for consistent line rules {译}
    功能块 第4部分:一致性行规的规则
    China National Standards
    4:

    English PDF
    GB/T 18380.34-2022 Fire tests of electric and optical cables under fire conditions - Part 34: vertical flame spread test for vertically mounted bunched wires and cables, class B {译}
    电缆和光缆在火焰条件下的燃烧试验 第34部分:垂直安装的成束电线电缆火焰垂直蔓延试验 B类
    China National Standards
    4:

    English PDF
    GB/T 16422.4-2022 Plastics - laboratory light source exposure test methods - Part 4: open carbon arc lamps {译}
    塑料 实验室光源暴露试验方法 第4部分:开放式碳弧灯
    China National Standards
    4:

    English PDF
    GB/T 14571.4-2022 Test methods for ethylene glycol for industrial use Part 4: Determination of ultraviolet transmittance ultraviolet spectrophotometric method {译}
    工业用乙二醇试验方法 第4部分:紫外透光率的测定 紫外分光光度法
    China National Standards
    4:

    English PDF
    GB/T 22459.4-2022 Refractory mortars—Part 4: Determination of flexural bonding strength
    耐火泥浆  第4部分:常温抗折粘接强度试验方法
    China National Standards
    4:

    English PDF
    GB/T 18449.4-2022 Metallic materials—Knoop hardness test—Part 4: Tables of hardness values
    金属材料 努氏硬度试验 第4部分: 硬度值表
    China National Standards
    4:

    English PDF
    GB/T 12967.4-2022 Test methods for anodic oxidation coatings and organic polymer coatings on aluminium and aluminium alloys—Part 4: Determination of ultraviolet light and heat resistance
    铝及铝合金阳极氧化膜及有机聚合物膜检测方法 第4部分:耐光热性能的测定
    China National Standards
    4:

    English PDF
    GB/T 16507.4-2022 Water-tube boilers—Part 4: Strength calculation of pressure parts
    水管锅炉  第4部分:受压元件强度计算
    China National Standards
    4:

    English PDF
    GB/T 41344.4-2022 Machinery Safety Risk Warning Part 4: Measures {译}
    机械安全 风险预警 第4部分:措施
    China National Standards
    4:

    English PDF
    GB/T 41295.4-2022 Functional Safety Application Guide Part 4: Administration and Maintenance {译}
    功能安全应用指南 第4部分:管理和维护
    China National Standards
    4:

    English PDF
    GB/T 16508.4-2022 Shell boilers - Part 4: Manufacture, inspection and acceptance {译}
    锅壳锅炉  第4部分:制造、检验与验收
    China National Standards
    4:

    English PDF
    GB/T 1094.14-2022 Power transformers—Part 14: Liquid-immersed power transformer using high-temperature insulation materials
    电力变压器 第14部分:采用高温绝缘材料的液浸式电力变压器
    China National Standards
    4:

    English PDF
    GB/T 5796.4-2022 Trapezoidal screw threads—Part 4: Tolerances
    梯形螺纹  第4部分:公差
    China National Standards
    4:

    English PDF
    GB/T 42284.4-2022 Road vehicles - Environmental conditions and tests for electrical and electronic equipment used in electric vehicle drive systems - Part 4: Climatic loads {译}
    道路车辆 电动汽车驱动系统用电气及电子设备的环境条件和试验 第4部分:气候负荷
    China National Standards
    4:

    English PDF
    GB/T 17215.324-2022 Electrical Measuring Equipment (AC) Particular Requirements Part 24: Static Fundamental Component Reactive Energy Meters (Class 0.5S, Class 1S, Class 1, Class 2 and Class 3) {译}
    电测量设备(交流) 特殊要求 第24部分:静止式基波分量无功电能表(0.5S级、1S级、1级、2级和3级)
    China National Standards
    4:

    English PDF
    GB/T 22264.4-2022 Mounted electrical measuring instruments with digital display - Part 4: Particular requirements for frequency meters {译}
    安装式数字显示电测量仪表 第4部分:频率表的特殊要求
    China National Standards
    4:

    English PDF
    GB/T 25915.14-2022 Clean rooms and related controlled environments - Part 14: Assessment of equipment suitability by particle concentration {译}
    洁净室及相关受控环境 第14部分:按粒子浓度评估设备适用性
    China National Standards
    4:

    English PDF
    GB/T 34590.4-2022 Road vehicles - Functional safety - Part 4: Product development: System level {译}
    道路车辆 功能安全 第4部分:产品开发:系统层面
    China National Standards
    4:

    English PDF
    GB/T 26416.4-2022 Methods for chemical analysis of rare earth iron alloys - Part 4: Determination of iron content - Potassium dichromate titration method {译}
    稀土铁合金化学分析方法 第4部分:铁量的测定 重铬酸钾滴定法
    China National Standards
    4:

    English PDF
    GB/T 2910.4-2022 Textiles - Quantitative chemical analysis - Part 4: Mixtures of certain protein fibers with certain other fibers (hypochlorite method) {译}
    纺织品 定量化学分析 第4部分:某些蛋白质纤维与某些其他纤维的混合物(次氯酸盐法)
    China National Standards
    4:

    English PDF
    GB/T 42193.4-2022 Road vehicles - Communication of emissions-related diagnostics between the vehicle and external equipment - Part 4: External test equipment {译}
    道路车辆 车辆和外部设备之间排放相关诊断的通信 第4部分:外部测试设备
    China National Standards
    4:

    English PDF
    GB/T 18916.64-2022 Water intake quotas - Part 64: Building and sanitary ceramics {译}
    取水定额 第64部分:建筑卫生陶瓷
    China National Standards
    4:

    English PDF
    GB/T 33523.604-2022 Product Geometry Specification (GPS) Surface Structure Area Method Part 604: Nominal Characteristics of Non-Contact (Coherent Scanning Interferometry) Type Instruments {译}
    产品几何技术规范(GPS) 表面结构 区域法 第604部分:非接触(相干扫描干涉)式仪器的标称特性
    China National Standards
    4:

    English PDF
    GB/T 14352.24-2022 Methods for chemical analysis of tungsten ore and molybdenum ore - Part 24: Determination of germanium content - Inductively coupled plasma mass spectrometry {译}
    钨矿石、钼矿石化学分析方法 第24部分:锗含量的测定 电感耦合等离子体质谱法
    China National Standards
    4:

    English PDF
    GB/T 19721.4-2022 Marine Forecast and Warning Issuance Part 4: Tsunami Warning Issuance {译}
    海洋预报和警报发布 第4部分:海啸警报发布
    China National Standards
    4:

    English PDF
    GB/T 3565.4-2022 Safety requirements for bicycles - Part 4: Test methods for brakes {译}
    自行车安全要求 第4部分:车闸试验方法
    China National Standards
    4:

    English PDF
    GB 7300.403-2022 Feed additives - Part 4: Enzyme preparations - Cellulase {译}
    饲料添加剂 第4部分:酶制剂 纤维素酶
    China National Standards
    4:

    English PDF
    GB/T 12085.14-2022 Optics and photonics - Environmental test methods - Part 14: Dew, frost, ice {译}
    光学和光子学 环境试验方法 第14部分:露、霜、冰
    China National Standards
    4:

    English PDF
    GB/T 12085.4-2022 Optics and photonics - Environmental test methods - Part 4: Salt spray {译}
    光学和光子学 环境试验方法 第4部分:盐雾
    China National Standards
    4:

    English PDF
    GB/T 14048.22-2022 Low-voltage switchgear and controlgear - Part 7-4: Auxiliary devices - PCB terminal blocks for copper conductors {译}
    低压开关设备和控制设备 第7-4部分:辅助器件 铜导体的PCB接线端子排
    China National Standards
    4:

    English PDF
    GB/T 38659.4-2022 Electromagnetic compatibility - Risk assessment - Part 4: System risk analysis method {译}
    电磁兼容 风险评估 第4部分:系统风险分析方法
    China National Standards
    4:

    English PDF
    GB/T 41771.4-2022 Field Device Integration Part 4: Packages {译}
    现场设备集成 第4部分:包
    China National Standards
    4:

    English PDF
    GB/T 25068.4-2022 Information technology Security technology Network security Part 4: Inter-network communication security protection using security gateways {译}
    信息技术 安全技术 网络安全 第4部分:使用安全网关的网间通信安全保护
    China National Standards
    4:

    English PDF
    GB/T 20840.14-2022 Transformers - Part 14: Supplementary technical requirements for DC current transformers {译}
    互感器 第14部分:直流电流互感器的补充技术要求
    China National Standards
    4:

    English PDF
    GB/T 18663.4-2022 Mechanical construction of electronic equipment - Tests for metric and imperial series - Part 4: Combinations of performance levels for modular cabinets {译}
    电子设备机械结构 公制系列和英制系列的试验 第4部分:模数机柜的性能等级组合
    China National Standards
    4:

    English PDF
    GB/T 40694.4-2022 Information technology - Diagrams, icons and symbols for use in biometric identification systems - Part 4: Fingerprint applications {译}
    信息技术 用于生物特征识别系统的图示、图标和符号 第4部分:指纹应用
    China National Standards
    4:

    English PDF
    GB/T 28826.4-2022 Information technology - Common biometric interchange format framework - Part 4: Security block format specification {译}
    信息技术 公用生物特征识别交换格式框架 第4部分:安全块格式规范
    China National Standards
    4:

    English PDF
    GB/T 35031.4-2022 User end energy management system Part 4: Information exchange specification between master station and gateway {译}
    用户端能源管理系统 第4部分:主站与网关信息交互规范
    China National Standards
    4:

    English PDF
    GB/T 5169.44-2022 Fire Hazard Tests for Electrical and Electronic Products - Part 44: Guidelines for Fire Hazard Assessment Fire Hazard Assessment {译}
    电工电子产品着火危险试验 第44部分:着火危险评定导则 着火危险评定
    China National Standards
    4:

    English PDF
    GB/T 38664.4-2022 Information technology big data government data open sharing part 4: sharing evaluation {译}
    信息技术 大数据 政务数据开放共享 第4部分:共享评价
    China National Standards
    4:

    English PDF
    GB/T 32561.4-2022 Infrared Optical Chalcogenide Glass Test Method Part 4: Optical Absorption Coefficient {译}
    红外光学硫系玻璃测试方法 第4部分:光吸收系数
    China National Standards
    4:

    English PDF
    GB/T 41866.4-2022 Systems and software engineering—Information technology project performance benchmarking measurement framework—Part 4: Data collection and maintenance {译}
    系统与软件工程 信息技术项目绩效基准度量框架 第4部分:数据收集和维护
    China National Standards
    4:

    English PDF
    GB/T 19892.4-2022 Batch control - Part 4: Batch production records {译}
    批控制 第4部分:批生产记录
    China National Standards
    4:

    English PDF
    GB/T 36917.4-2022 Dentistry - Laboratory cutting tools - Part 4: Microtungsten carbide cutting tools for laboratory use {译}
    牙科学 技工室用刃具 第4部分:技工室用微型硬质合金刃具
    China National Standards
    4:

    English PDF
    GB 17799.4-2022 Electromagnetic compatibility - Generic standards - Part 4: Emissions in industrial environments {译}
    电磁兼容 通用标准 第4部分:工业环境中的发射
    China National Standards
    4:

    English PDF
    GB/T 25742.4-2022 Machine condition monitoring and diagnostics - Data processing, communication and presentation - Part 4: Presentation {译}
    机器状态监测与诊断 数据处理、通信与表示 第4部分:表示
    China National Standards
    4:

    English PDF
    GB/T 41979.4-2022 Friction stir spot welding of aluminum and aluminum alloys - Part 4: Welding procedure specification and qualification {译}
    搅拌摩擦点焊 铝及铝合金 第4部分:焊接工艺规程及评定
    China National Standards
    4:

    English PDF
    GB/T 17934.4-2022 Printing technology - Process control of halftone color separation plates, proofs and production prints - Part 4: Publishing gravure printing {译}
    印刷技术 网目调分色版、样张和生产印刷品的加工过程控制 第4部分:出版凹印
    China National Standards
    4:

    English PDF
    GB/T 3488.4-2022 Cemented carbide - Metallographic determination of microstructure - Part 4: Metallographic determination of porosity, non-combined carbon defects and decarburized phases {译}
    硬质合金 显微组织的金相测定 第4部分:孔隙度、非化合碳缺陷和脱碳相的金相测定
    China National Standards
    4:

    English PDF
    GB/T 8423.4-2022 Terminology for the oil and gas industry - Part 4: Oil and gas metering and analysis {译}
    石油天然气工业术语 第4部分:油气计量与分析
    China National Standards
    4:

    English PDF
    GB/T 39715.4-2021 Plastics—Biobased content—Part 4: Determination of biobased mass content
    塑料 生物基含量 第4部分:生物基物质含量的测定
    China National Standards
    4:

    English PDF
    GB/T 38206.4-2021 Methods to assess the reliability of pneumatic components—Part 4: Pressure regulators
    气动元件可靠性评估方法 第 4 部分:调压阀
    China National Standards
    4:

    English PDF
    GB/T 34015.4-2021 Recovery of traction battery used in electric vehicle—Echelon use—Part 4: Labels for echelon used battery products
    车用动力电池回收利用 梯次利用 第4部分:梯次利用产品标识
    China National Standards
    4:

    English PDF
    GB/T 20899.4-2021 Methods for chemical analysis of gold ores—Part 4: Determination of copper content
    金矿石化学分析方法 第4部分:铜量的测定
    China National Standards
    4:

    English PDF
    GB/T 8013.4-2021 Anodic oxide coatings and organic polymer coatings on aluminium and its alloys—Part 4: Texture coatings
    铝及铝合金阳极氧化膜与有机聚合物膜 第4部分:纹理膜
    China National Standards
    4:

    English PDF
    GB/T 5211.14-2021 General methods of test for pigments and extenders—Part 14: Determination of residue on sieve—Mechanical flushing procedure
    颜料和体质颜料通用试验方法 第14部分:筛余物的测定 机械冲洗法
    China National Standards
    4:

    English PDF
    GB/T 16840.4-2021 Technical determination methods for electrical fire evidence—Part 4: Metallographic analysis method
    电气火灾痕迹物证技术鉴定方法 第4部分:金相分析法
    China National Standards
    4:

    English PDF
    GB/T 40473.4-2021 Banking application system—Nonfunctional requirement—Part 4: Compatibility
    银行业应用系统 非功能需求 第4部分:兼容性
    China National Standards
    4:

    English PDF
    GB/T 27926.4-2021 Financial services—Universal financial industry message scheme—Part 4:XML Schema generation
    金融服务 金融业通用报文方案 第4部分:XML Schema生成
    China National Standards
    4:

    English PDF
    GB/T 22576.4-2021 Medical laboratories-Requirements for quality and competence- Part 4:Requirements in the field of clinical chemistry examination
    医学实验室 质量和能力的要求 第4部分:临床化学检验领域的要求
    China National Standards
    4:

    English PDF
    GB/T 40096.4-2021 Technical specification for on-site protection equipment - Part 4: Smart management unit
    就地化继电保护装置技术规范 第4部分:智能管理单元
    China National Standards
    4:

    English PDF
    GB/T 40094.4-2021 Electronic commerce data transaction—Part 4:Privacy protection specification
    电子商务数据交易 第4部分:隐私保护规范
    China National Standards
    4:

    English PDF
    GB/T 15242.4-2021 Dimensions series of rod and piston dynamic seals for hydraulic cylinders-Part 4:Dimensions and tolerances of bearing rings groove
    液压缸活塞和活塞杆动密封装置尺寸系列 第4部分:支承环安装沟槽尺寸系列和公差
    China National Standards
    4:

    English PDF
    GB/T 7739.4-2021 Methods for chemical analysis of gold concentrates—Part 4:Determination of copper content
    金精矿化学分析方法 第4部分:铜量的测定
    China National Standards
    4:

    English PDF
    GB/T 20720.4-2021 Enterprise-control system integration—Part 4:Object model attributes for manufacturing operations management integration
    企业控制系统集成 第4部分:制造运行管理集成的对象模型属性
    China National Standards
    4:

    English PDF
    GB/T 18916.54-2021 Norm of water intake - Part 54: Canned food
    取水定额 第54部分:罐头食品
    China National Standards
    4:

    English PDF
    GB/T 18216.4-2021 Electrical safety in low voltage distribution systems up to 1 000 V a. c and 1 500 V d. c - Equipment for testing, measuring or monitoring of protective measures - Part 4: Resistance of earth connection and equipotential bonding
    交流1000V和直流1500V及以下低压配电系统电气安全 防护措施的试验、测量或监控设备 第4部分:接地电阻和等电位接地电阻
    China National Standards
    4:

    English PDF
    GB/T 25195.4-2021 Cranes—Graphical symbols—Part 4:Jib cranes
    起重机 图形符号 第4部分:臂架起重机
    China National Standards
    4:

    English PDF
    GB/T 39652.4-2021 Emergency response guideline for transportation of dangerous goods—Part 4:List of substance which in contact with water emit toxic gases
    危险货物运输应急救援指南 第4部分:遇水反应产生毒性气体的物质目录
    China National Standards
    4:

    English PDF
    GB/T 36625.4-2021 Smart city-Data fusion-Part 4:Opening and sharing requirements
    智慧城市 数据融合 第4部分:开放共享要求
    China National Standards
    4:

    English PDF
    GB/T 33780.4-2021 Technical specification of electronic government common platform based on cloud computing—Part 4:Operation system
    基于云计算的电子政务公共平台技术规范 第4部分:操作系统
    China National Standards
    4:

    English PDF
    GB/T 32910.4-2021 Data center—Resource utilization—Part 4: Renewable energy factor
    数据中心 资源利用 第4部分:可再生能源利用率
    China National Standards
    4:

    English PDF
    GB/T 29186.4-2021 Evaluation of brand value elements-Part 4:Innovation elements
    品牌价值要素评价 第4部分:创新要素
    China National Standards
    4:

    English PDF
    GB/T 15972.54-2021 Specifications for optical fibre test methods—Part 54:Measurement methods and test procedures for environmental characteristics—Gamma irradiation
    光纤试验方法规范 第54部分:环境性能的测量方法和试验程序 伽玛辐照
    China National Standards
    4:

    English PDF
    GB/T 15972.34-2021 Specifications for optical fibre test methods—Part 34:Measurement methods and test procedures for mechanical characteristics—Fibre curl
    光纤试验方法规范 第34部分:机械性能的测量方法和试验程序 光纤翘曲
    China National Standards
    4:

    English PDF
    GB/T 9966.14-2021 Test methods for natural stone-Part 14:Determination of rupture energy
    天然石材试验方法 第14部分:耐断裂能量的测定
    China National Standards
    4:

    English PDF
    GB/T 8151.24-2021 Methods for chemical analysis of zinc concentrates—Part 24:Determination of soluble zinc content—Flame atomic absorption spectrometry
    锌精矿化学分析方法 第24部分:可溶性锌含量的测定 火焰原子吸收光谱法
    China National Standards
    4:

    English PDF
    GB/T 35060.4-2021 General specification of shearer—Part 4: Electric control system
    滚筒采煤机通用技术条件 第4部分:电气控制系统
    China National Standards
    4:

    English PDF
    GB/T 34080.4-2021 Security specification of electronic government common platform based on cloud computing -- Part 4: Application security
    基于云计算的电子政务公共平台安全规范 第4部分:应用安全
    China National Standards
    4:

    English PDF
    GB/T 34079.4-2021 Service specification of electronic government common platform based on cloud computing -- Part 4: Application service
    基于云计算的电子政务公共平台服务规范 第4部分:应用服务
    China National Standards
    4:

    English PDF
    GB/T 34078.4-2021 General specification of electronic government common platform based on cloud computing -- Part 4: Service implement
    基于云计算的电子政务公共平台总体规范 第4部分:服务实施
    China National Standards
    4:

    English PDF
    GB/T 34077.4-2021 Management specification of electronic government common platform based on cloud computing -- Part 4: Guide for platform management
    基于云计算的电子政务公共平台管理规范 第4部分:平台管理导则
    China National Standards
    4:

    English PDF
    GB/T 20833.4-2021 Rotating electrical machines—The winding insulation—Part 4: Measurement of insulation resistance and polarization index
    旋转电机 绕组绝缘 第4部分:绝缘电阻和极化指数测量
    China National Standards
    4:

    English PDF
    GB/T 18329.4-2021 Plain bearings—Metallic multilayer plain bearings—Part 4:Non-destructive ultrasonic transmission testing of bond of thickness greater than or equal to 0.3 mm
    滑动轴承 多层金属滑动轴承 第4部分: 合金厚度≥0.3mm的结合质量超声穿透无损检测
    China National Standards
    4:

    English PDF
    GB/T 10001.4-2021 Public information graphical symbols—Part 4: Symbols for recreation sport
    公共信息图形符号 第4部分:运动健身符号
    China National Standards
    4:

    English PDF
    GB/T 5095.2504-2021 Electromechanical components for electronic equipment—Basic testing procedures and measuring methods—Part 25-4: Test 25d: Propagation delay
    电子设备用机电元件 基本试验规程及测量方法 第25-4部分:试验25d:传输时延
    China National Standards
    4:

    English PDF
    GB/T 5095.2304-2021 Electromechanical components for electronic equipment—Basic testing procedures and measuring methods—Part 23-4: Screening and filtering tests—Test 23d: Transmission line reflections in the time domain
    电子设备用机电元件 基本试验规程及测量方法 第23-4部分:屏蔽和滤波试验 试验23d:时域内传输线的反射
    China National Standards
    4:

    English PDF
    GB/T 1149.4-2021 Internal combustion engines—Piston rings—Part 4:Quality requirements
    内燃机 活塞环 第4部分:质量要求
    China National Standards
    4:

    English PDF
    GB/T 14914.4-2021 The specification for marine observation—Part 4:Shore based radar observation
    海洋观测规范 第4部分:岸基雷达观测
    China National Standards
    4:

    English PDF
    GB/T 15579.14-2021 Arc welding equipment -- Part 14: Calibration, validation and consistency testing
    弧焊设备 第14部分:校准、确认和一致性试验
    China National Standards
    4:

    English PDF
    GB/T 6113.104-2021 Specification for radio disturbance and immunity measuring apparatus and methods—Part 1-4:Radio disturbance and immunity measuring apparatus—Antennas and test sites for radiated disturbance measurements
    无线电骚扰和抗扰度测量设备和测量方法规范 第1-4部分:无线电骚扰和抗扰度测量设备 辐射骚扰测量用天线和试验场地
    China National Standards
    4:

    English PDF

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

     

    +86-755-25831330        info@transcustoms.com 
    106# Zhongmao Mansion,No.1 Beizhan Road,Shenzhen,China
    ©  RJS Copyright  2001-2025 All Rights Reserved

    - Since 2001 -
    Focus on China Standards & Compliance Services

    www.rjs.cn

    China Licenses

    www.transcustoms.com

    China HS code & Tariff

    www.gbstandards.org

    China National Standards