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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 39139.1-2020 |
Shale gas—Environmental protection—Part 1：Pollution prevention and disposal methods for drilling operation 页岩气 环境保护 第1部分：钻井作业污染防治与处置方法 |
China National Standards Part |
 English PDF |
| GB/T 39140.1-2020 |
Clamping flanges for diamond circular saw blade—Part 1:Stone processing 金刚石圆锯片用夹紧卡盘 第1部分：石材加工 |
China National Standards Part |
English PDF |
| GB/T 39140.2-2020 |
Clamping flanges for diamond circular saw blade—Part 2:Building construction and civil engineering 金刚石圆锯片用夹紧卡盘 第2部分：建筑施工和土木工程 |
China National Standards Part |
English PDF |
| GB/T 39141.1-2020 |
Mineral and sapphire watch-glasses—Part 1：Dimensions and tolerances 无机和蓝宝石手表玻璃 第1部分：尺寸和公差 |
China National Standards Part |
English PDF |
| GB/T 39142.1-2020 |
Specification of plastic-steel bilayer self-lubricating materials—Part 1：Running-in layer with modified PTFE tape 塑料－钢背二层粘接复合自润滑板材技术条件 第1部分：带改性聚四氟乙烯（PTFE）减摩层的板材 |
China National Standards Part |
English PDF |
| GB/T 39191-2020 |
Heat treatment for stainless steel and heat resistant steel Parts 不锈钢和耐热钢件热处理 |
China National Standards Part |
English PDF |
| GB/T 39192-2020 |
Heat treatment of superalloy Parts 高温合金件热处理 |
China National Standards Part |
English PDF |
| GB/T 39193-2020 |
Ambient air—Determination of Particulate matter mass concentration—Gravimetric method 环境空气 颗粒物质量浓度测定 重量法 |
China National Standards Part |
English PDF |
| GB/T 34609.2-2020 |
Method for chemical analysis of rhodium compounds—Part 2: Determination of silver,gold,platinum...potassium,chromium and silicon contents—Inductively coupled plasma atomic emission spectrometry 铑化合物化学分析方法 第2部分：银、金、铂、钯、铱、钌、铅、镍、铜、铁、锡、锌、镁、锰、铝、钙、钠、钾、铬、硅含量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards Part |
English PDF |
| GB/T 20975.6-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 6: Determination of cadmium content 铝及铝合金化学分析方法 第6部分：镉含量的测定 |
China National Standards Part |
English PDF |
| GB/T 20975.21-2020 |
Methods for chemical analysis of aluminium and aluminium alloy—Part 21: Determination of calcium content 铝及铝合金化学分析方法 第21部分：钙含量的测定 |
China National Standards Part |
English PDF |
| GB/T 20975.17-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 17: Determination of strontium content 铝及铝合金化学分析方法 第17部分：锶含量的测定 |
China National Standards Part |
English PDF |
| GB/T 8151.22-2020 |
Methods for chemical analysis of zinc concentrates—Part 22: Determination of zinc, copper, lead,iron,aluminium ,calcium and magnesium contents—Wavelength dispersive X-ray fluorescence spectrometric method 锌精矿化学分析方法 第22部分：锌、铜、铅、铁、铝、钙和镁含量的测定 波长色散X射线荧光光谱法 |
China National Standards Part |
English PDF |
| GB/T 8151.23-2020 |
Methods for chemical analysis of zinc concentrates—Part 23: Determination of mercury content—Solid sampling and direct mercury analysis method 锌精矿化学分析方法 第23部分：汞含量的测定 固体进样直接法 |
China National Standards Part |
English PDF |
| GB/T 39095-2020 |
Aerospace—Hydraulic fluid components—Expression of Particulate contamintion levels 航空航天 液压流体零部件 颗粒污染度等级的表述 |
China National Standards Part |
English PDF |
| GB/T 39078.1-2020 |
Safety requirements for escalators and moving walks—Part 1: Essential safety requirements 自动扶梯和自动人行道安全要求 第1部分：基本安全要求 |
China National Standards Part |
English PDF |
| GB/T 39085.2-2020 |
Ships and marine technology—Marine radar reflectors—Part 2: Active type 船舶和海上技术 船用雷达反射器 第2部分:主动型 |
China National Standards Part |
English PDF |
| GB/T 39003.1-2020 |
Engineering data exchange format for use in industrial automation systems engineering—Automation markup language—Part 1：Architecture and general requirements 工业自动化系统工程用工程数据交换格式 自动化标识语言 第1部分：架构和通用要求 |
China National Standards Part |
English PDF |
| GB/T 34077.5-2020 |
Management specification of electronic government common platform based on cloud computing—Part 5：Technical service system 基于云计算的电子政务公共平台管理规范 第5部分：技术服务体系 |
China National Standards Part |
English PDF |
| GB/T 27894.1-2020 |
Natural gas—Determination of composition and associated uncertainty by gas chromatography—Part 1: General guidelines and calculation of composition 天然气 用气相色谱法测定组成和计算相关不确定度 第1部分：总导则和组成计算 |
China National Standards Part |
English PDF |
| GB/T 27894.2-2020 |
Natural gas—Determination of composition and associated uncertainty by gas chromatography—Part 2: Uncertainty calculations 天然气 用气相色谱法测定组成和计算相关不确定度 第2部分：不确定度计算 |
China National Standards Part |
English PDF |
| GB/T 24474.2-2020 |
Measurement of ride quality—Part 2: Escalators and moving walks 乘运质量测量 第2部分：自动扶梯和自动人行道 |
China National Standards Part |
English PDF |
| GB/T 24242.1-2020 |
Non-alloy steel wire rod for conversion to wire—Part 1：General requirements 制丝用非合金钢盘条 第1部分：一般要求 |
China National Standards Part |
English PDF |
| GB/T 24242.2-2020 |
Non-alloy steel wire rod for conversion to wire —Part 2：Specific requirements for general purpose wire rod 制丝用非合金钢盘条 第2部分:一般用途盘条 |
China National Standards Part |
English PDF |
| GB/T 24242.4-2020 |
Non-alloy steel wire rod for conversion to wire —Part 4：Specific requirements for special purpose wire rod 制丝用非合金钢盘条 第4部分：特殊用途盘条 |
China National Standards Part |
English PDF |
| GB/T 20818.12-2020 |
Industrial-process measurement and control—Data structures and elements in process equipment catalogues—Part 12：Lists of properties (LOPs) for flow measuring equipment for electronic data exchange 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12部分：流量测量设备电子数据交换用属性列表（LOPs） |
China National Standards Part |
English PDF |
| GB/T 20818.21-2020 |
Industrial-process measurement and control—Data structures and elements in process equipment catalogues—Part 21: List of properties (LOP) for automated valves for electronic data exchange—Generic structures 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21部分：自动阀电子数据交换用属性列表(LOP) 通用结构 |
China National Standards Part |
English PDF |
| GB/T 14048.2-2020 |
Low-voltage switchgear and controlgear—Part 2: Circuit-breakers 低压开关设备和控制设备 第2部分：断路器 |
China National Standards Part |
English PDF |
| GB/T 14048.4-2020 |
Low-voltage switchgear and controlgear—Part 4-1: Contactors and motor-starters—Electromechanical contactors and motor-starters (Including motor protector) 低压开关设备和控制设备 第4-1部分：接触器和电动机起动器 机电式接触器和电动机起动器（含电动机保护器） |
China National Standards Part |
English PDF |
| GB/T 11060.8-2020 |
Natural gas—Determination of sulfur compounds—Part 8：Determination of total sulfur content by ultraviolet fluorescence method 天然气 含硫化合物的测定 第8部分：用紫外荧光光度法测定总硫含量 |
China National Standards Part |
English PDF |
| GB/T 9125.1-2020 |
Fasteners for steel pipe flange joints—Part 1:PN designated 钢制管法兰连接用紧固件 第1部分：PN系列 |
China National Standards Part |
English PDF |
| GB 9706.205-2020 |
Medical electrical equipment—Part 2-5: Particular requirements for the basic safety and essential performance of ultrasonic physiotherapy equipment 医用电气设备 第2-5部分：超声理疗设备的基本安全和基本性能专用要求 |
China National Standards Part |
English PDF |
| GB 9706.206-2020 |
Medical electrical equipment—Part 2-6: Particular requirments for the basic safety and essential performence of microwave therapy equipment 医用电气设备 第2-6部分：微波治疗设备的基本安全和基本性能专用要求 |
China National Standards Part |
English PDF |
| GB 14232.1-2020 |
Plastics collapsible containers for human blood and blood components—Part 1: Conventional containers 人体血液及血液成分袋式塑料容器 第1部分：传统型血袋 |
China National Standards Part |
English PDF |
| GB/T 20975.37-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 37:Determination of niobium content 铝及铝合金化学分析方法 第37部分：铌含量的测定 |
China National Standards Part |
English PDF |
| GB/T 38972-2020 |
TiB2 Particulate reinforced aluminum alloy powder for additive manufacturing 增材制造用硼化钛颗粒增强铝合金粉 |
China National Standards Part |
English PDF |
| GB/T 4214.2-2020 |
Test method for noise of household and similar electrical appliances—Particular requirements for vacuum cleaners 家用和类似用途电器噪声测试方法 真空吸尘器的特殊要求 |
China National Standards Part |
English PDF |
| GB/T 4214.4-2020 |
Test method for noise of household and similar electrical appliances—Particular requirements for washing machines and spin extractors 家用和类似用途电器噪声测试方法 洗衣机和离心式脱水机的特殊要求 |
China National Standards Part |
English PDF |
| GB/T 4214.7-2020 |
Test method for noise of household and similar electrical appliances—Particular requirements for tumbler dryers 家用和类似用途电器噪声测试方法 滚筒式干衣机的特殊要求 |
China National Standards Part |
English PDF |
| GB/T 4802.4-2020 |
Textiles—Determination of the fabric propensity to surface pilling, fuzzing or matting—Part 4: Random tumble pilling method 纺织品 织物起毛起球性能的测定 第4部分：随机翻滚法 |
China National Standards Part |
English PDF |
| GB/T 4893.2-2020 |
Test of surface coatings of furniture—Part 2: Determination of resistance to wet heat 家具表面漆膜理化性能试验 第2部分：耐湿热测定法 |
China National Standards Part |
English PDF |
| GB/T 4893.3-2020 |
Test of surface coatings of furniture—Part 3: Determination of resistance to dry heat 家具表面漆膜理化性能试验 第3部分：耐干热测定法 |
China National Standards Part |
English PDF |
| GB/T 5097-2020 |
Non-destructive testing—Penetrant testing and magnetic Particle testing—Viewing conditions 无损检测 渗透检测和磁粉检测 观察条件 |
China National Standards Part |
English PDF |
| GB/T 9125.2-2020 |
Fasteners for steel pipe flange joints—Part 2：Class designated 钢制管法兰连接用紧固件 第2部分：Class系列 |
China National Standards Part |
English PDF |
| GB/T 24328.1-2020 |
Tissue paper and tissue products—Part 1: General guidance on terms 卫生纸及其制品 第1部分：术语导则 |
China National Standards Part |
English PDF |
| GB/T 24328.11-2020 |
Tissue paper and tissue products—Part 11: Determination of optical properties—Measurement of brightness and colour—C/2°(indoor daylight) illuminant 卫生纸及其制品 第11部分：光学性能的测定 亮度和颜色的测定 C/2°（室内日光条件） |
China National Standards Part |
English PDF |
| GB/T 24328.12-2020 |
Tissue paper and tissue products—Part 12: Determination of optical properties—Determination of opacity—Diffuse reflectance method 卫生纸及其制品 第12部分：光学性能的测定 不透明度的测定 漫反射法 |
China National Standards Part |
English PDF |
| GB/T 24328.2-2020 |
Tissue paper and tissue products—Part 2: Determination of thickness, bulking thickness and apparent bulk density and bulk 卫生纸及其制品 第2部分: 厚度、层积厚度、表观层积紧度和松厚度的测定 |
China National Standards Part |
English PDF |
| GB/T 24328.3-2020 |
Tissue paper and tissue products—Part 3: Determination of tensile strength, stretch at maximum force and tensile energy absorption 卫生纸及其制品 第3部分: 抗张强度、最大力值时伸长率和抗张能量吸收的测定 |
China National Standards Part |
English PDF |
| GB/T 24328.4-2020 |
Tissue paper and tissue products--Part 4: Determination of wet tensile strength 卫生纸及其制品 第4部分: 湿抗张强度的测定 |
China National Standards Part |
English PDF |
| GB/T 24328.6-2020 |
Tissue paper and tissue products—Part 6: Determination of water-absorption time and water-absorption capacity—Basket-immersion test method 卫生纸及其制品 第6部分: 吸水时间和吸水能力的测定 篮筐浸没法 |
China National Standards Part |
English PDF |
| GB/T 24328.7-2020 |
Tisue paper and tissue products—Part 7: Determination of ball burst strength 卫生纸及其制品 第7部分：球形耐破度的测定 |
China National Standards Part |
English PDF |
| GB/T 24328.8-2020 |
Tissue paper and tissue products—Part 8: Determination of optical properties—Measurement of brightness and colour—D65/10°（outdoor daylight conditions) 卫生纸及其制品 第8部分：光学性能的测定 亮度和颜色的测定 D65/10°（室外日光条件） |
China National Standards Part |
English PDF |
| GB/T 24328.10-2020 |
Tissue paper and tissue products—Part 10: Determination of tensile strength of perforated lines and calculation of perforation efficiency 卫生纸及其制品 第10部分：打孔线抗张强度的测定及打孔效率的计算 |
China National Standards Part |
English PDF |
| GB/T 24328.9-2020 |
Tissue paper and tissue products—Part 9: Determination of wet ball burst strength 卫生纸及其制品 第9部分：湿球形耐破度的测定 |
China National Standards Part |
English PDF |
| GB/T 24474.1-2020 |
Measurement of ride quality—Part 1: Lifts (elevators) 乘运质量测量 第1部分：电梯 |
China National Standards Part |
English PDF |
| GB/T 26790.4-2020 |
Industrial wireless networks WIA specification—Part 4: WIA-FA protocol conformance test specification 工业无线网络WIA规范 第4部分：WIA-FA协议一致性测试规范 |
China National Standards Part |
English PDF |
| GB/T 38048.1-2020 |
Surface cleaning appliances—Part1: General requirements on test material and test equipment 表面清洁器具 第1部分：试验材料和设备的通用要求 |
China National Standards Part |
English PDF |
| GB/T 38637.2-2020 |
Internet of things—Access of sensing and controlling device—Part 2:Data management requirements 物联网 感知控制设备接入 第2部分：数据管理要求 |
China National Standards Part |
English PDF |
| GB/T 38852.1-2020 |
Industrial-process measurement, control and automation—Evaluation of system properties for the purpose of system assessment—Part 1: Terminology and basic concepts 工业过程测量控制和自动化 系统评估中系统特性的评定 第1部分：术语和基本概念 |
China National Standards Part |
English PDF |
| GB/T 38852.2-2020 |
Industrial-process measurement, control and automation—Evaluation of system properties for the purpose of system assessment—Part 2: Assessment methodology 工业过程测量控制和自动化 系统评估中系统特性的评定 第2部分：评估方法学 |
China National Standards Part |
English PDF |
| GB/T 38924.10-2020 |
Environmental test methods for civil small and light unmanned aircraft system—Part 10: Sand and dust test 民用轻小型无人机系统环境试验方法 第10部分： 砂尘试验 |
China National Standards Part |
English PDF |
| GB/T 38924.1-2020 |
Environmental test methods for civil small and light unmanned aircraft system—Part 1: General principles 民用轻小型无人机系统环境试验方法 第1部分: 总则 |
China National Standards Part |
English PDF |
| GB/T 38924.2-2020 |
Environmental test methods for civil small and light unmanned aircraft system—Part 2: Low-temperature test 民用轻小型无人机系统环境试验方法 第2部分: 低温试验 |
China National Standards Part |
English PDF |
| GB/T 38924.3-2020 |
Environmental test methods for civil small and light unmanned aircraft system—Part 3: High-temperature test 民用轻小型无人机系统环境试验方法 第3部分：高温试验 |
China National Standards Part |
English PDF |
| GB/T 38924.4-2020 |
Environmental test methods for civil small and light unmanned aircraft system—Part 4: Temperature and altitude test 民用轻小型无人机系统环境试验方法 第4部分：温度和高度试验 |
China National Standards Part |
English PDF |
| GB/T 38924.5-2020 |
Environmental test methods for civil small and light unmanned aircraft system—Part 5: Shock test 民用轻小型无人机系统环境试验方法 第5部分：冲击试验 |
China National Standards Part |
English PDF |
| GB/T 38924.6-2020 |
Environmental test methods for civil small and light unmanned aircraft system—Part 6: Vibration test 民用轻小型无人机系统环境试验方法 第6部分：振动试验 |
China National Standards Part |
English PDF |
| GB/T 38924.7-2020 |
Environmental test methods for civil small and light unmanned aircraft system—Part 7: Humidity test 民用轻小型无人机系统环境试验方法 第7部分：湿热试验 |
China National Standards Part |
English PDF |
| GB/T 38924.8-2020 |
Environmental test methods for civil small and light unmanned aircraft system—Part 8: Salt spray test 民用轻小型无人机系统环境试验方法 第8部分：盐雾试验 |
China National Standards Part |
English PDF |
| GB/T 38924.9-2020 |
Environmental test methods for civil small and light unmanned aircraft system—Part 9: Waterproofness test 民用轻小型无人机系统环境试验方法 第9部分：防水性试验 |
China National Standards Part |
English PDF |
| GB/T 38967-2020 |
Categories of typical structural elements for civil aircraft sheet metal Parts 民用飞机钣金件典型结构要素分类 |
China National Standards Part |
English PDF |
| GB/T 38983.1-2020 |
Virtual synchronous machine—Part 1: General 虚拟同步机 第1部分：总则 |
China National Standards Part |
English PDF |
| GB/T 38984.1-2020 |
Generic specification of information on products by properties—Part 1: Principles and methods 基于属性的产品信息通用规范 第1部分：原则和方法 |
China National Standards Part |
English PDF |
| GB/T 25085.4-2020 |
Road vehicles—Automotive cables—Part 4: Dimensions and requirements for 30 V a.c. or 60 V d.c. single-core aluminium conductor cables 道路车辆 汽车电缆 第4部分：交流30 V或直流60 V单芯铝导体电缆的尺寸和要求 |
China National Standards Part |
English PDF |
| GB/T 39015.2-2020 |
Road vehicles—Interchangeability of mechanical couplings between tractors and semi-trailers—Part 2: Low-coupling tractors and high-volume semi-trailers 道路车辆 牵引车与半挂车之间机械连接互换性 第2部分：低牵引座半挂牵引车与大容积半挂车 |
China National Standards Part |
English PDF |
| GB/T 39032-2020 |
Difficult-flammable Particleboard 难燃刨花板 |
China National Standards Part |
English PDF |
| GB/T 39037.2-2020 |
Lashing and securing arrangements on road vehicles for sea transportation on Ro/Ro ships—General requirements—Part 2: Semi-trailers 用于海上滚装船运输的道路车辆的系固点与系固设施布置 通用要求 第2部分：半挂车 |
China National Standards Part |
English PDF |
| GB/T 38943.1-2020 |
Earth-moving machinery—Electrical safety of machines utilizing electric drives and related components and systems—Part 1: General requirements 土方机械 使用电力驱动的机械及其相关零件和系统的电安全 第1部分：一般要求 |
China National Standards Part |
English PDF |
| GB/T 38943.2-2020 |
Earth-moving machinery—Electrical safety of machines utilizing electric drives and related components and systems—Part 2:Particular requirements for externally-powered machines 土方机械 使用电力驱动的机械及其相关零件和系统的电安全 第2部分：外部动力机器的特定要求 |
China National Standards Part |
English PDF |
| GB/T 38943.3-2020 |
Earth-moving machinery—Electrical safety of machines utilizing electric drives and related components and systems—Part 3:Particular requirements for self-powered machines 土方机械 使用电力驱动的机械及其相关零件和系统的电安全 第3部分：自行式机器的特定要求 |
China National Standards Part |
English PDF |
| GB/T 39542.1-2020 |
Mechanical pencils for technical drawings—Part 1: Classification, dimensions, performance requirements and testing 技术制图活动铅笔 第1部分：分类、尺寸、性能要求和试验 |
China National Standards Part |
English PDF |
| GB/T 39542.2-2020 |
Mechanical pencils for technical drawings—Part 2: Black leads—Classification and dimensions 技术制图活动铅笔 第2部分：黑铅芯 分类和尺寸 |
China National Standards Part |
English PDF |
| GB/T 39542.3-2020 |
Mechanical pencils for technical drawings—Part 3: Black leads—Bending strengths of HB leads 技术制图活动铅笔 第3部分：黑铅芯 HB铅芯弯曲强度 |
China National Standards Part |
English PDF |
| GB/T 38949-2020 |
Determination of pore size for porous membranes—Standard Particle method 多孔膜孔径的测定 标准粒子法 |
China National Standards Part |
English PDF |
| GB/T 38756-2020 |
Safety and control devices for gas burners and gas-burning appliances—Particular requirements—Ignition unit 燃气燃烧器和燃烧器具用安全和控制装置 特殊要求 点火装置 |
China National Standards Part |
English PDF |
| GB/T 25127.1-2020 |
Low ambient temperature air source heat pump （water chilling）packages—Part 1：Heat pump （water chilling）packages for industrial & commercial and similar application 低环境温度空气源热泵（冷水）机组 第1部分：工业或商业用及类似用途的热泵（冷水）机组 |
China National Standards Part |
English PDF |
| GB/T 25127.2-2020 |
Low ambient temperature air source heat pump （water chilling）packages—Part 2：Heat pump （water chilling）packages for household and similar application 低环境温度空气源热泵（冷水）机组 第2部分：户用及类似用途的热泵（冷水）机组 |
China National Standards Part |
English PDF |
| GB/T 20975.4-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 4:Determination of iron content 铝及铝合金化学分析方法 第4部分：铁含量的测定 |
China National Standards Part |
English PDF |
| GB/T 20975.5-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 5：Determination of silicon content 铝及铝合金化学分析方法 第5部分：硅含量的测定 |
China National Standards Part |
English PDF |
| GB/T 20975.7-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 7:Determination of manganese content 铝及铝合金化学分析方法 第7部分：锰含量的测定 |
China National Standards Part |
English PDF |
| GB/T 20975.9-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 9:Determination of lithium content—Flame atomic absorption spectrometry 铝及铝合金化学分析方法 第9部分：锂含量的测定 火焰原子吸收光谱法 |
China National Standards Part |
English PDF |
| GB/T 20975.10-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 10：Determination of tin content 铝及铝合金化学分析方法 第10部分：锡含量的测定 |
China National Standards Part |
English PDF |
| GB/T 20975.12-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 12: Determination of titanium content 铝及铝合金化学分析方法 第12部分：钛含量的测定 |
China National Standards Part |
English PDF |
| GB/T 20975.14-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 14：Determination of nickel content 铝及铝合金化学分析方法 第14部分：镍含量的测定 |
China National Standards Part |
English PDF |
| GB/T 20975.16-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 16：Determination of magnesium content 铝及铝合金化学分析方法 第16部分：镁含量的测定 |
China National Standards Part |
English PDF |
| GB/T 20975.18-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 18:Determination of chromium content 铝及铝合金化学分析方法 第18部分：铬含量的测定 |
China National Standards Part |
English PDF |
| GB/T 20975.22-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 22:Determination of beryllium content 铝及铝合金化学分析方法 第22部分：铍含量的测定 |
China National Standards Part |
English PDF |
| GB/T 20975.24-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 24：Determination of total rare earth content 铝及铝合金化学分析方法 第24部分：稀土总含量的测定 |
China National Standards Part |
English PDF |
| GB/T 20975.25-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 25：Determination of elements content—Inductively coupled plasma atomic emission spectrometric method 铝及铝合金化学分析方法 第25部分：元素含量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards Part |
English PDF |
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