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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 29307-2022 |
Reliability test Method of drive motor system for electric vehicles 电动汽车用驱动电机系统可靠性试验方法 |
China National Standards Method |
 English PDF |
| GB/T 26416.5-2022 |
Methods for chemical analysis of rare earth iron alloys - Part 5: Determination of oxygen content - Pulse-infrared absorption method 稀土铁合金化学分析方法 第5部分：氧含量的测定 脉冲-红外吸收法 |
China National Standards Method |
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 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 Method |
English PDF |
| GB/T 26416.3-2022 |
Chemical analysis Methods of rare earth ferroalloys - Part 3: Determination of calcium, magnesium, aluminum, nickel, manganese content - Inductively coupled plasma emission spectrometry 稀土铁合金化学分析方法 第3部分：钙、镁、铝、镍、锰量的测 定 电感耦合等离子体发射光谱法 |
China National Standards Method |
English PDF |
| GB/T 26416.2-2022 |
Methods for chemical analysis of rare earth ferroalloys - Part 2: Determination of rare earth impurity content - Inductively coupled plasma emission spectrometry 稀土铁合金化学分析方法 第2部分：稀土杂质含量的测定 电感耦合等离子体发射光谱法 |
China National Standards Method |
English PDF |
| GB/T 26416.1-2022 |
Chemical Analysis Methods of Rare Earth Ferroalloys Part 1: Determination of Total Rare Earth 稀土铁合金化学分析方法 第1部分：稀土总量的测定 |
China National Standards Method |
English PDF |
| GB/T 41968-2022 |
Treatment and disposal Method of emulsified waste liquid 乳化废液处理处置方法 |
China National Standards Method |
English PDF |
| GB/T 5686.7-2022 |
Ferromanganese, manganese silicon alloy, ferromanganese nitride and metal manganese Determination of sulfur content Infrared absorption Method and combustion neutralization titration method 锰铁、锰硅合金、氮化锰铁和金属锰 硫含量的测定 红外线吸收法和燃烧中和滴定法 |
China National Standards Method |
English PDF |
| GB/T 42106-2022 |
Nanotechnology Three-dimensional nanostructures and device processing Methods Ion beam irradiation-induced strain method 纳米技术 三维纳米结构与器件的加工方法 离子束辐照诱导应变法 |
China National Standards Method |
English PDF |
| GB/T 11603-2022 |
Method for determination of average wool fiber diameter - airflow method 羊毛纤维平均直径测定法 气流法 |
China National Standards Method |
English PDF |
| GB/T 41959-2022 |
Treatment and disposal Method of nickel-containing electroplating sludge 含镍电镀污泥处理处置方法 |
China National Standards Method |
English PDF |
| GB/T 24218.102-2022 |
Textiles - Test Methods for nonwovens - Part 102: Determination of tensile elasticity 纺织品 非织造布试验方法 第102部分：拉伸弹性的测定 |
China National Standards Method |
English PDF |
| GB/T 42223-2022 |
Textiles - Tests for color fastness - Color fastness to rubbing Gakushin Method 纺织品 色牢度试验 耐摩擦色牢度 Gakushin法 |
China National Standards Method |
English PDF |
| GB/T 2910.4-2022 |
Textiles - Quantitative chemical analysis - Part 4: Mixtures of certain protein fibers with certain other fibers (hypochlorite Method) 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 Method |
English PDF |
| GB/T 27977-2022 |
Electric energy efficiency test and calculation Method for cement production 水泥生产电能能效测试及计算方法 |
China National Standards Method |
English PDF |
| GB/T 16850.1-2022 |
Test Methods for optical amplifiers - Part 1: Power and gain parameters of single-channel optical amplifiers 光放大器试验方法 第1部分：单波道光放大器功率和增益参数 |
China National Standards Method |
English PDF |
| GB/T 12690.1-2022 |
Chemical analysis Methods for non-rare earth impurities in rare earth metals and their oxides—Part 1: Determination of carbon and sulfur content—High frequency-infrared absorption method 稀土金属及其氧化物中非稀土杂质化学分析方法 第1部分：碳、硫量的测定 高频-红外吸收法 |
China National Standards Method |
English PDF |
| GB/T 4570-2022 |
Test Methods for durability of motorcycles and mopeds 摩托车和轻便摩托车耐久性试验方法 |
China National Standards Method |
English PDF |
| GB/T 42144-2022 |
Methods for estimating public doses from reactor effluent discharges 反应堆流出物排放所致公众剂量的估算方法 |
China National Standards Method |
English PDF |
| GB/T 42129-2022 |
Data management capability maturity assessment Method 数据管理能力成熟度评估方法 |
China National Standards Method |
English PDF |
| GB/T 42022-2022 |
Essential oils - Determination of water content - Karl Fischer Method 精油 水分含量的测定 卡尔费休法 |
China National Standards Method |
English PDF |
| GB/T 42211-2022 |
Restoration and reinforcement Method of dilapidated and fragile newspaper or periodical cotton net 糟朽、脆弱报纸或期刊棉网修复加固方法 |
China National Standards Method |
English PDF |
| GB/T 12782-2022 |
Automobile heating performance requirements and test Methods 汽车采暖性能要求和试验方法 |
China National Standards Method |
English PDF |
| GB/T 42140-2022 |
Information technology; Cloud computing; Cloud operating system performance testing indicators and measurement Methods 信息技术 云计算 云操作系统性能测试指标和度量方法 |
China National Standards Method |
English PDF |
| GB/T 11942-2022 |
Chromaticity measurement Method of colored building materials 彩色建筑材料色度测量方法 |
China National Standards Method |
English PDF |
| GB/T 8333-2022 |
Plastics - Test Method for combustion behavior of rigid foamed plastics - Vertical combustion method 塑料 硬质泡沫塑料燃烧性能试验方法 垂直燃烧法 |
China National Standards Method |
English PDF |
| GB/T 5275.2-2022 |
Gas analysis - Preparation of calibration gas mixtures by dynamic Method - Part 2: Piston pumps 气体分析 动态法制备校准用混合气体 第2部分：活塞泵 |
China National Standards Method |
English PDF |
| GB/T 41954-2022 |
Paints and varnishes - Test Method for in situ quality assessment of interior wall coatings 色漆和清漆 内墙涂层现场质量评定试验方法 |
China National Standards Method |
English PDF |
| GB/T 33523.72-2022 |
Product Geometry Specification (GPS) Surface Structure Area Method Part 72: XML File Format x3p 产品几何技术规范（GPS）表面结构 区域法 第72部分：XML文件格式x3p |
China National Standards Method |
English PDF |
| GB/T 42252-2022 |
Torque and pretightening force test Method of high lock nut for aviation 航空用高锁螺母力矩及预紧力测试方法 |
China National Standards Method |
English PDF |
| GB/T 42181-2022 |
Test Method for tightening torque of threaded blind rivets used in aviation 航空用螺纹抽芯铆钉锁紧力矩测试方法 |
China National Standards Method |
English PDF |
| GB/T 42162-2022 |
Raw rubber - Determination of residual monomers and other volatile low molecular weight compounds by capillary gas chromatography - Thermal desorption (dynamic headspace) Method 生橡胶 毛细管气相色谱测定残留单体和其他挥发性低分子量化合物 热脱附（动态顶空）法 |
China National Standards Method |
English PDF |
| GB/T 42258-2022 |
Determination of Fatigue Properties of Flexible Porous Polymer Materials by Constant Deformation Method 柔性多孔聚合物材料 恒定形变法测定疲劳性能 |
China National Standards Method |
English PDF |
| GB/T 39693.8-2022 |
Vulcanized rubber or thermoplastic rubber - Determination of hardness - Part 8: Determination of apparent hardness of rubber rollers by Zhao's hardness (P&J) Method 硫化橡胶或热塑性橡胶 硬度的测定 第8部分：赵氏硬度（P&J)法测定胶辊的表观硬度 |
China National Standards Method |
English PDF |
| GB/T 39693.7-2022 |
Vulcanized rubber or thermoplastic rubber - Determination of hardness - Part 7: Determination of the apparent hardness of rubber rollers by the Shore hardness Method 硫化橡胶或热塑性橡胶 硬度的测定 第7部分：邵氏硬度法测定胶辊的表观硬度 |
China National Standards Method |
English PDF |
| GB/T 41938-2022 |
Rubber compounding agent - Precipitated hydrated silica - Evaluation Method in mixtures of solution-polymerized styrene-butadiene rubber (S-SBR) and butadiene rubber (BR) 橡胶配合剂 沉淀水合二氧化硅 在溶聚丁苯橡胶(S-SBR)和丁二烯橡胶(BR)混合物中的评价方法 |
China National Standards Method |
English PDF |
| GB/T 41955-2022 |
Non-opening compression test Method for multidirectional laminates of polymer matrix composites 聚合物基复合材料多向层合板无开孔压缩试验方法 |
China National Standards Method |
English PDF |
| GB/T 33523.606-2022 |
Geometric Product Specification (GPS) Surface Structure Area Method Part 606: Nominal Characteristics of Non-Contact (Zoom) Type Instruments 产品几何技术规范（GPS） 表面结构 区域法 第606部分：非接触（变焦）式仪器的标称特性 |
China National Standards Method |
English PDF |
| GB/T 33523.605-2022 |
Product Geometric Specifications (GPS) Surface Structure Area Method Part 605: Nominal Characteristics of Non-Contact (Point AF Probe) Type Instruments 产品几何技术规范（GPS） 表面结构 区域法 第605部分：非接触（点自动对焦探针）式仪器的标称特性 |
China National Standards Method |
English PDF |
| GB/T 33523.602-2022 |
Product Geometry Specification (GPS) Surface Structure Area Method Part 602: Nominal Characteristics of Non-Contact (Confocal Chromatic Probe) Type Instruments 产品几何技术规范（GPS） 表面结构 区域法 第602部分：非接触（共聚焦色差探针）式仪器的标称特性 |
China National Standards Method |
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 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 Method |
English PDF |
| GB/T 33523.603-2022 |
Product Geometry Specification (GPS) Surface Structure Area Method Part 603: Nominal Properties of Non-Contact (Phase Shift Interferometry) Type Instruments 产品几何技术规范（GPS） 表面结构 区域法 第603部分：非接触（相移干涉显微）式仪器的标称特性 |
China National Standards Method |
English PDF |
| GB/T 33523.3-2022 |
Geometric Product Specification (GPS) Surface Structure Area Method Part 3: Set of Specification Operations 产品几何技术规范（GPS） 表面结构 区域法 第3部分：规范操作集 |
China National Standards Method |
English PDF |
| GB/T 42177-2022 |
Technical requirements and test Methods for hydrogen valves in hydrogen refueling stations 加氢站氢气阀门技术要求及试验方法 |
China National Standards Method |
English PDF |
| GB/T 42269-2022 |
Separation membrane pore size test Method - gas permeation method 分离膜孔径测试方法 气体渗透法 |
China National Standards Method |
English PDF |
| GB/T 42270-2022 |
Hydrophobicity Test Method of Porous Hydrophobic Membrane 多孔疏水膜的疏水性能测试方法 |
China National Standards Method |
English PDF |
| GB/T 42122-2022 |
Vulcanized rubber or thermoplastic rubber - Determination of abrasion resistance (modified Lamborn abrasion tester Method) 硫化橡胶或热塑性橡胶 耐磨性能的测定（改进型兰伯恩磨耗试验机法） |
China National Standards Method |
English PDF |
| GB/T 42089-2022 |
Child-resistant packaging - Requirements and test Methods for non-reclosable packaging for non-drug products 防止儿童开启包装 非药品用不可再封口包装的要求与试验方法 |
China National Standards Method |
English PDF |
| GB/T 42259-2022 |
Metal and other inorganic coatings - Test Methods for thermal cycle and thermal shock resistance of thermal barrier coatings 金属及其他无机覆盖层 热障涂层耐热循环与热冲击性能测试方法 |
China National Standards Method |
English PDF |
| GB/T 42261-2022 |
Metal and other inorganic coatings - thermal cycle test Method for thermal barrier coatings under temperature gradient 金属及其他无机覆盖层 温度梯度下热障涂层热循环试验方法 |
China National Standards Method |
English PDF |
| GB/T 13747.26-2022 |
Methods for chemical analysis of zirconium and zirconium alloys - Part 26: Determination of alloys and impurity elements - Inductively coupled plasma atomic emission spectrometry 锆及锆合金化学分析方法 第26部分：合金及杂质元素的测定 电感耦合等离子体原子发射光谱法 |
China National Standards Method |
English PDF |
| GB/T 37211.3-2022 |
Methods for chemical analysis of germanium metal - Part 3: Determination of trace impurity elements - Glow discharge mass spectrometry 金属锗化学分析方法 第3部分:痕量杂质元素的测定 辉光放电质谱法 |
China National Standards Method |
English PDF |
| GB/T 42275-2022 |
Cemented carbide - Determination of total carbon content - High frequency combustion infrared absorption Method/thermal conductivity method 硬质合金 总碳量的测定 高频燃烧红外吸收法/热导法 |
China National Standards Method |
English PDF |
| GB/T 42260-2022 |
Lithium iron phosphate electrochemical performance test cycle life test Method 磷酸铁锂电化学性能测试 循环寿命测试方法 |
China National Standards Method |
English PDF |
| GB/T 42161-2022 |
Electrochemical Performance Test of Lithium Iron Phosphate Test Method for First Discharge Specific Capacity and First Charge and Discharge Efficiency 磷酸铁锂电化学性能测试 首次放电比容量及首次充放电效率测试方法 |
China National Standards Method |
English PDF |
| GB/T 42277-2022 |
Test Method for carbonation of cement mortar 水泥胶砂碳化性试验方法 |
China National Standards Method |
English PDF |
| GB/T 42268-2022 |
Ethylene-propylene-diene rubber (EPDM) evaluation Method 乙烯-丙烯-二烯烃橡胶(EPDM) 评价方法 |
China National Standards Method |
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 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 Method |
English PDF |
| GB/T 42265-2022 |
Test Method for air purification performance of photocatalytic materials - Removal of toluene 光催化材料空气净化性能测试方法 甲苯的去除 |
China National Standards Method |
English PDF |
| GB/T 42257-2022 |
Chromium-erbium co-doped yttrium-scandium-gallium garnet crystal optical and laser performance measurement Method 铬铒共掺钇钪镓石榴石晶体光学及激光性能测量方法 |
China National Standards Method |
English PDF |
| GB/T 42249-2022 |
Technical indicators and calculation Methods for comprehensive utilization of mineral resources 矿产资源综合利用技术指标及其计算方法 |
China National Standards Method |
English PDF |
| GB/T 42273-2022 |
Zirconium compound chemical analysis Method Calcium, hafnium, titanium, sodium, iron, chromium, cadmium, zinc, manganese, copper, nickel, lead content determination Inductively coupled plasma atomic emission spectrometry 锆化合物化学分析方法 钙、铪、钛、钠、铁、铬、镉、锌、锰、铜、镍、铅含量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards Method |
English PDF |
| GB/T 13477.23-2022 |
Test Methods for building sealing materials - Part 23: Determination of durability after tension-compression cycles under artificial accelerated weathering 建筑密封材料试验方法 第23部分：人工加速气候老化下拉伸-压缩循环后耐久性的测定 |
China National Standards Method |
English PDF |
| GB/T 13477.22-2022 |
Test Methods for building sealing materials - Part 22: Determination of curing characteristics 建筑密封材料试验方法 第22部分：固化特性的测定 |
China National Standards Method |
English PDF |
| GB/T 42271-2022 |
Non-contact measurement Method for resistivity of semi-insulating silicon carbide single crystal 半绝缘碳化硅单晶的电阻率非接触测试方法 |
China National Standards Method |
English PDF |
| GB/T 42272-2022 |
Test Method for chloride ion diffusion coefficient of cement mortar 水泥胶砂氯离子扩散系数检测方法 |
China National Standards Method |
English PDF |
| GB/T 42256-2022 |
Analytical Method of Ruthenium-106 in Seawater Gamma Energy Spectroscopy 海水中钌-106的分析方法 γ能谱法 |
China National Standards Method |
English PDF |
| GB/T 41929-2022 |
Plastics - epoxy resins - test Methods 塑料 环氧树脂 试验方法 |
China National Standards Method |
English PDF |
| GB/T 41932-2022 |
Plastics - Determination of fracture toughness (GIC and KIC) - Linear elastic fracture mechanics (LEFM) Method 塑料 断裂韧性（GIC和KIC）的测定 线弹性断裂力学（LEFM）法 |
China National Standards Method |
English PDF |
| GB/T 41933-2022 |
Plastics - Determination of tension-tension fatigue crack growth - Linear elastic fracture mechanics (LEFM) Method 塑料 拉-拉疲劳裂纹扩展的测定 线弹性断裂力学(LEFM)法 |
China National Standards Method |
English PDF |
| GB/T 2406.3-2022 |
Plastics - Determination of combustion behavior by the oxygen index Method - Part 3: High temperature test 塑料 用氧指数法测定燃烧行为 第3部分：高温试验 |
China National Standards Method |
English PDF |
| GB/T 41936.1-2022 |
Plastics - Determination of torsional stiffness of flexible materials - Part 1: General Method 塑料 柔性材料扭转刚度的测定 第1部分:通用方法 |
China National Standards Method |
English PDF |
| GB/T 41937-2022 |
Rubber or plastics coated fabrics-Physical-mechanical property tests-Determination of flex resistance by deflectionometer Method 橡胶或塑料涂覆织物 物理机械性能试验 挠度仪法测定耐曲挠性 |
China National Standards Method |
English PDF |
| GB/T 7994.3-2022 |
Test Methods for glass-lined equipment - Part 3: Mechanical shock resistance gunshot test 搪玻璃设备试验方法 第3部分：耐机械冲击枪击试验 |
China National Standards Method |
English PDF |
| GB/T 41942-2022 |
Natural raw rubber and natural rubber latex - Determination of nitrogen content - Micro Dumas combustion Method 天然生胶和天然胶乳 氮含量的测定 微杜马斯燃烧法 |
China National Standards Method |
English PDF |
| GB/T 42099-2022 |
PMMEL Item Analysis Methodology for Civil Aircraft 民用飞机主最低设备清单建议书（PMMEL）项目分析方法 |
China National Standards Method |
English PDF |
| GB/T 3565.9-2022 |
Safety requirements for bicycles - Part 9: Test Methods for saddles and saddle tubes 自行车安全要求 第9部分：鞍座与鞍管试验方法 |
China National Standards Method |
English PDF |
| GB/T 3565.8-2022 |
Safety requirements for bicycles - Part 8: Test Methods for pedals and drive systems 自行车安全要求 第8部分：脚蹬与驱动系统试验方法 |
China National Standards Method |
English PDF |
| GB/T 3565.7-2022 |
Safety requirements for bicycles - Part 7: Test Methods for wheels and rims 自行车安全要求 第7部分：车轮与轮辋试验方法 |
China National Standards Method |
English PDF |
| GB/T 3565.6-2022 |
Safety requirements for bicycles - Part 6: Test Methods for frame and front fork 自行车安全要求 第6部分：车架与前叉试验方法 |
China National Standards Method |
English PDF |
| GB/T 3565.5-2022 |
Safety requirements for bicycles - Part 5: Test Methods for handlebars 自行车安全要求 第5部分：车把试验方法 |
China National Standards Method |
English PDF |
| GB/T 3565.4-2022 |
Safety requirements for bicycles - Part 4: Test Methods for brakes 自行车安全要求 第4部分：车闸试验方法 |
China National Standards Method |
English PDF |
| GB/T 3565.3-2022 |
Safety requirements for bicycles - Part 3: General test Methods 自行车安全要求 第3部分：一般试验方法 |
China National Standards Method |
English PDF |
| GB/T 42077-2022 |
Biotechnology—Performance evaluation requirements for nucleic acid target sequence quantification Methods—qPCR and dPCR methods 生物技术 核酸靶序列定量方法的性能评价要求 qPCR法和dPCR法 |
China National Standards Method |
English PDF |
| GB/T 42087-2022 |
Hydraulic transmission system - Cleaning procedure and cleanliness inspection Method 液压传动 系统 清洗程序和清洁度检验方法 |
China National Standards Method |
English PDF |
| GB/T 21079.1-2022 |
Financial services - Secure cryptographic devices (retail) Part 1: Concepts, requirements and evaluation Methods 金融服务 安全加密设备（零售）第1部分：概念、要求和评估方法 |
China National Standards Method |
English PDF |
| GB/T 29188-2022 |
Brand value evaluation multi-period excess return Method 品牌价值评价 多周期超额收益法 |
China National Standards Method |
English PDF |
| GB/T 13277.9-2022 |
Compressed air - Part 9: Methods of measurement of liquid water content 压缩空气 第9部分：液态水含量测量方法 |
China National Standards Method |
English PDF |
| GB/T 1927.21-2022 |
Test Methods for physical and mechanical properties of wood with small unblemished specimens - Part 21: Determination of nail holding force 无疵小试样木材物理力学性质试验方法 第21部分：握钉力测定 |
China National Standards Method |
English PDF |
| GB/T 9104-2022 |
Test Method for industrial stearic acid 工业硬脂酸试验方法 |
China National Standards Method |
English PDF |
| GB/T 42076.1-2022 |
Biotechnology—Cell counting—Part 1: General rules for cell counting Methods 生物技术 细胞计数 第1部分：细胞计数方法通则 |
China National Standards Method |
English PDF |
| GB 16796-2022 |
Safety protection alarm equipment safety requirements and test Methods 安全防范报警设备 安全要求和试验方法 |
China National Standards Method |
English PDF |
| GB/T 41898-2022 |
Determination of corrosion resistance and compactness of coatings on inner walls of food metal containers-electrochemical Method 食品金属容器内壁涂覆层耐蚀力和致密性的测定 电化学法 |
China National Standards Method |
English PDF |
| GB/T 41633.3-2022 |
Insulating liquids - Determination of acid value - Part 3: Test Methods for non-mineral insulating oils 绝缘液体 酸值的测定 第3部分：非矿物绝缘油的试验方法 |
China National Standards Method |
English PDF |
| GB/T 12085.23-2022 |
Optics and photonics - Environmental test Methods - Part 23: Combined test for low pressure and low temperature, atmospheric temperature, high temperature or damp heat 光学和光子学 环境试验方法 第23部分：低压与低温、大气温度、高温或湿热综合试验 |
China National Standards Method |
English PDF |
| GB/T 12085.22-2022 |
Optics and photonics - Environmental test Methods - Part 22: Combined test of low temperature, high temperature or temperature change with impact or random vibration 光学和光子学 环境试验方法 第22部分: 低温、高温或温度变化与碰撞或随机振动综合试验 |
China National Standards Method |
English PDF |
| GB/T 12085.8-2022 |
Optics and photonics - Environmental test Methods - Part 8: High internal pressure, low internal pressure, immersion 光学和光子学 环境试验方法 第8部分：高内压、低内压、浸没 |
China National Standards Method |
English PDF |
| GB/T 12085.2-2022 |
Optics and photonics - Environmental test Methods - Part 2: Low temperature, high temperature, damp heat 光学和光子学 环境试验方法 第2部分：低温、高温、湿热 |
China National Standards Method |
English PDF |
| GB/T 32877-2022 |
Specific test Methods for determining losses and efficiency of frequency converter-fed a.c. motors 变频器供电交流电动机确定损耗和效率的特定试验方法 |
China National Standards Method |
English PDF |
| GB/T 8146-2022 |
Rosin test Method 松香试验方法 |
China National Standards Method |
English PDF |
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