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Standard Code | Standard Title | Standard Class | Order |
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GB/T 22264.5-2022 |
InstalLED electrical measuring instruments with digital display - Part 5: Particular requirements for phase meters and power factor meters 安装式数字显示电测量仪表 第5部分:相位表和功率因数表的特殊要求 |
China National Standards LED |
English PDF |
GB/T 25915.15-2022 |
Clean rooms and related controlLED environments - Part 15: Suitability assessment of equipment and materials by concentration of gaseous chemicals 洁净室及相关受控环境 第15部分: 按气态化学物浓度评定设备及材料的适用性 |
China National Standards LED |
English PDF |
GB/T 25915.14-2022 |
Clean rooms and related controlLED environments - Part 14: Assessment of equipment suitability by particle concentration 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 LED |
English PDF |
GB/T 25915.13-2022 |
Cleanrooms and related controlLED environments - Part 13: Surface cleaning to particle and chemical cleanliness requirements 洁净室及相关受控环境 第13部分:达到粒子和化学洁净度要求的表面清洁 |
China National Standards LED |
English PDF |
GB/T 41945-2022 |
Rubber and vulcanizate - Determination of metal content by inductively coupLED plasma optical emission spectrometry (ICP-OES) 生胶和硫化胶 用电感耦合等离子体发射光谱仪(ICP-OES)测定金属含量 |
China National Standards LED |
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 LED |
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 LED |
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 LED |
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 LED |
English PDF |
GB/T 18326-2022 |
Plain bearings Multilayer materials for thin-walLED plain bearings 滑动轴承 薄壁滑动轴承用多层材料 |
China National Standards LED |
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 LED |
English PDF |
GB/T 42131-2022 |
Artificial Intelligence KnowLEDge Graph Technical Framework 人工智能 知识图谱技术框架 |
China National Standards LED |
English PDF |
GB/T 42240-2022 |
Nanotechnology Determination of metallic impurities in graphene powders Inductively coupLED plasma mass spectrometry 纳米技术 石墨烯粉体中金属杂质的测定 电感耦合等离子体质谱法 |
China National Standards LED |
English PDF |
GB/T 42175-2022 |
Determination of copper, lead, zinc, cadmium and chromium in drilling mud and drilling cuttings for offshore oil exploration and development Microwave digestion-inductively coupLED plasma mass spectrometry 海洋石油勘探开发钻井泥浆和钻屑中铜、铅、锌、镉、铬的测定 微波消解-电感耦合等离子体质谱法 |
China National Standards LED |
English PDF |
GB/T 42219-2022 |
Optical Measurement of High Power LEDs 大功率LED的光学测量 |
China National Standards LED |
English PDF |
GB/T 42243-2022 |
General Technical Specifications for Organic Light Emitting Diode (OLED) Televisions 有机发光二极管(OLED)电视机通用技术规范 |
China National Standards LED |
English PDF |
GB/T 42248-2022 |
Determination of iodine and bromine content in soil and water system sediment semi-melting-inductively coupLED plasma mass spectrometry 土壤、水系沉积物 碘、溴含量的测定 半熔-电感耦合等离子体质谱法 |
China National Standards LED |
English PDF |
GB/T 42125.19-2022 |
Safety requirements for electrical equipment for measurement, control and laboratory use - Part 19: Particular requirements for actuators of electrically controlLED valves 测量、控制和实验室用电气设备的安全要求 第19部分:电动控制阀门执行器的特殊要求 |
China National Standards LED |
English PDF |
GB/T 41769-2022 |
CdZnTe chemical analysis method - Determination of zinc and cadmium content - Inductively coupLED plasma atomic emission spectrometry 碲锌镉化学分析方法 锌和镉含量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards LED |
English PDF |
GB/T 42047-2022 |
Determination method for outgassing products of materials and components in the seaLED cabin of manned spacecraft 载人航天器密封舱内材料和部组件出气产物测定方法 |
China National Standards LED |
English PDF |
GB/T 41763-2022 |
Dimensions, shapes, weights and allowable deviations of twin-roll cast-rolLED hot-rolled steel sheets and strips 双辊铸轧热轧薄钢板及钢带的尺寸、外形、重量及允许偏差 |
China National Standards LED |
English PDF |
GB/T 1871.5-2022 |
Determination of magnesium oxide content in phosphate rocks and concentrates - Flame atomic absorption spectrometry, volumetric and inductively coupLED plasma emission spectrometry 磷矿石和磷精矿中氧化镁含量的测定 火焰原子吸收光谱法、容量法和电感耦合等离子体发射光谱法 |
China National Standards LED |
English PDF |
GB/T 17396-2022 |
Hot-rolLED seamless steel pipes for hydraulic props 液压支柱用热轧无缝钢管 |
China National Standards LED |
English PDF |
GB/T 13747.18-2022 |
Methods for chemical analysis of zirconium and zirconium alloys - Part 18: Determination of vanadium content - Benzoylphenyl hydroxylamine spectrophotometry and inductively coupLED plasma atomic emission spectrometry 锆及锆合金化学分析方法 第18部分:钒含量的测定 苯甲酰苯基羟胺分光光度法和电感耦合等离子体原子发射光谱法 |
China National Standards LED |
English PDF |
GB/T 13747.10-2022 |
Methods for chemical analysis of zirconium and zirconium alloys - Part 10: Determination of tungsten content - Thiocyanate spectrophotometry and inductively coupLED plasma atomic emission spectrometry 锆及锆合金化学分析方法 第10部分:钨含量的测定 硫氰酸盐分光光度法和电感耦合等离子体原子发射光谱法 |
China National Standards LED |
English PDF |
GB/T 13747.9-2022 |
Methods for chemical analysis of zirconium and zirconium alloys - Part 9: Determination of magnesium content - flame atomic absorption spectrometry and inductively coupLED plasma atomic emission spectrometry 锆及锆合金化学分析方法 第9部分:镁含量的测定 火焰原子吸收光谱法和电感耦合等离子体原子发射光谱法 |
China National Standards LED |
English PDF |
GB/T 6150.2-2022 |
Methods for chemical analysis of tungsten concentrates - Part 2: Determination of tin content - Potassium iodate titration and inductively coupLED plasma atomic emission spectrometry 钨精矿化学分析方法 第2部分:锡含量的测定 碘酸钾滴定法和电感耦合等离子体原子发射光谱法 |
China National Standards LED |
English PDF |
GB/T 41721-2022 |
Small boat navigation lights LED light performance 小艇 航行灯 LED灯的性能 |
China National Standards LED |
English PDF |
GB/T 41982-2022 |
High-alloy heat-resistant steel thick-walLED pipes and forgings for power stations General technical requirements 电站用高合金耐热钢厚壁管道和锻件 通用技术条件 |
China National Standards LED |
English PDF |
GB/T 41747-2022 |
Structural-grade and high-strength continuous hot-dip galvanized twin-roll cast-rolLED steel sheet and strip 结构级和高强度连续热镀锌双辊铸轧薄钢板及钢带 |
China National Standards LED |
English PDF |
GB/T 41746-2022 |
Commercial-grade continuous hot-dip galvanized twin-roll cast-rolLED steel sheet and strip 商品级连续热镀锌双辊铸轧薄钢板及钢带 |
China National Standards LED |
English PDF |
GB/T 41749-2022 |
General requirements for surface quality of hot-rolLED section steel 热轧型钢表面质量一般要求 |
China National Standards LED |
English PDF |
GB/T 24825-2022 |
Performance specification for DC or AC electronic control gear for LED modules LED模块用直流或交流电子控制装置 性能规范 |
China National Standards LED |
English PDF |
GB/T 41787.1-2022 |
Ceiling-mounted interface for indoor LED lighting equipment - Part 1: Specifications for mechanical and electrical interfaces 室内LED照明设备天花板安装接口 第1部分:机械接口和电气接口规范 |
China National Standards LED |
English PDF |
GB/T 41842-2022 |
Service Specifications for Lifts for the DisabLED 功能障碍者移位机 配置服务规范 |
China National Standards LED |
English PDF |
GB/T 2523-2022 |
Method for measuring surface roughness, peak number and waviness of cold-rolLED metal sheet and strip 冷轧金属薄板和薄带表面粗糙度、峰值数和波纹度测量方法 |
China National Standards LED |
English PDF |
GB/T 8005.4-2022 |
Terminology for aluminum and aluminum alloys - Part 4: RecycLED aluminum 铝及铝合金术语 第4部分:回收铝 |
China National Standards LED |
English PDF |
GB/T 41631-2022 |
Unused mineral insulating oil for oil-filLED cables 充油电缆用未使用过的矿物绝缘油 |
China National Standards LED |
English PDF |
GB/T 7717.16-2022 |
Acrylonitrile for industrial use - Part 16: Determination of iron and copper content - Graphite furnace atomic absorption spectrometry and inductively coupLED plasma mass spectrometry 工业用丙烯腈 第16部分:铁、铜含量的测定 石墨炉原子吸收光谱法和电感耦合等离子体质谱法 |
China National Standards LED |
English PDF |
GB/T 20564.6-2022 |
High-strength cold-rolLED steel sheets and strips for automobiles—Part 6: Transformation-induced plasticity steels 汽车用高强度冷连轧钢板及钢带 第6部分:相变诱导塑性钢 |
China National Standards LED |
English PDF |
GB/T 20564.5-2022 |
High-strength cold-rolLED steel sheets and strips for automobiles - Part 5: Isotropic steels 汽车用高强度冷连轧钢板及钢带 第5部分:各向同性钢 |
China National Standards LED |
English PDF |
GB/T 20564.4-2022 |
High-strength cold-rolLED steel sheets and strips for automobiles - Part 4: Low-alloy high-strength steels 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 LED |
English PDF |
GB/T 41603.2-2022 |
Self-propelLED agricultural machinery - Stability evaluation - Part 2: Determination and test procedures for static stability 自走式农业机械 稳定性评价 第2部分:静态稳定性的测定与试验程序 |
China National Standards LED |
English PDF |
GB/T 41603.1-2022 |
Self-propelLED agricultural machinery - Stability assessment - Part 1: Principles 自走式农业机械 稳定性评价 第1部分:原则 |
China National Standards LED |
English PDF |
GB/T 41663-2022 |
Road vehicles - Brake lining friction material - ScaLED bench test method 道路车辆 制动衬片摩擦材料 缩比台架试验方法 |
China National Standards LED |
English PDF |
GB/T 20887.5-2022 |
High strength hot rolLED steel sheet and strip for automobile part 5: martensitic steel 汽车用高强度热连轧钢板及钢带 第5部分:马氏体钢 |
China National Standards LED |
English PDF |
GB/T 20887.4-2022 |
High strength hot rolLED steel sheet and strip for automobile part 4: transformation induced plastic steel 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 LED |
English PDF |
GB/T 20887.3-2022 |
High strength hot rolLED steel sheet and strip for automobile part 3: dual phase steel 汽车用高强度热连轧钢板及钢带 第3部分:双相钢 |
China National Standards LED |
English PDF |
GB/T 20887.2-2022 |
High strength hot rolLED steel sheet and strip for automobile part 2: high reaming steel 汽车用高强度热连轧钢板及钢带 第2部分:高扩孔钢 |
China National Standards LED |
English PDF |
GB/T 20564.7-2022 |
High strength tandem cold rolLED steel sheet and strip for automobile part 7: martensitic steel 汽车用高强度冷连轧钢板及钢带 第7部分:马氏体钢 |
China National Standards LED |
English PDF |
GB/T 4162-2022 |
Ultrasonic testing method for forged and rolLED steel bars 锻轧钢棒超声检测方法 |
China National Standards LED |
English PDF |
GB/T 41615-2022 |
Information items and data structures of biological samples and sampLED persons in forensic scientific DNA database 法庭科学 DNA数据库中生物检材和被采样人信息项及其数据结构 |
China National Standards LED |
English PDF |
GB/T 41435-2022 |
Determination of boric acid and borate content in toy materials inductively coupLED plasma mass spectrometry 玩具材料中硼酸和硼酸盐含量的测定 电感耦合等离子体质谱法 |
China National Standards LED |
English PDF |
GB/T 41423-2022 |
Calculation of long-term luminous flux and radiation flux maintenance rate of LED packaging LED封装 长期光通量和辐射通量维持率的推算 |
China National Standards LED |
English PDF |
GB/T 41408-2022 |
Sensory analysis methodology - General guidelines for testing consumer preferences in controlLED areas 感官分析 方法学 受控区域消费者喜好测试一般导则 |
China National Standards LED |
English PDF |
GB/T 38725.1-2022 |
CoiLED reinforced plastic pipes - Part 1: General 可盘绕式增强塑料管 第1部分:总则 |
China National Standards LED |
English PDF |
GB/T 6893-2022 |
Aluminium and aluminium alloys cold drawn (rolLED) tubes 铝及铝合金拉(轧)制管材 |
China National Standards LED |
English PDF |
GB/T 26069-2022 |
AnneaLED monocrystalline silicon wafers 硅单晶退火片 |
China National Standards LED |
English PDF |
GB/T 41158.5-2022 |
Three-dimensional process planning for mechanical products—Part 5:DetaiLED design 机械产品三维工艺设计 第5部分:详细设计 |
China National Standards LED |
English PDF |
GB/T 41306-2022 |
General Requirements for Internet-Based Personal KnowLEDge Services 基于互联网的个人知识服务通用要求 |
China National Standards LED |
English PDF |
GB/T 41304.2-2022 |
KnowLEDge Management Methods and Tools Part 2: Designing Rational Knowledge Modeling 知识管理方法和工具 第2部分:设计理性知识建模 |
China National Standards LED |
English PDF |
GB/T 41304.1-2022 |
KnowLEDge management methods and tools Part 1: Process knowledge management 知识管理方法和工具 第1部分:工艺知识管理 |
China National Standards LED |
English PDF |
GB/T 41330-2022 |
Analysis method of boiler water and cooling water Determination of trace copper, iron, sodium, calcium, magnesium content Inductively coupLED plasma mass spectrometry (ICP-MS) method 锅炉用水和冷却水分析方法 痕量铜、铁、钠、钙、镁含量的测定 电感耦合等离子体质谱(ICP-MS)法 |
China National Standards LED |
English PDF |
GB/T 51446-2021 |
Technical standard for concrete-filLED steel tubular hybrid structures 钢管混凝土混合结构技术标准 |
China National Standards LED |
English PDF |
GB/T 5121.28-2021 |
Methods for chemical analysis of copper and copper alloys—Part 28:Determination of chromium,iron,manganese,cobalt,nickel,zinc,arsenic,selenium,silver,cadmium,tin,antimony,tellurium,lead and bismuth content—Inductively coupLED plasma-mass spectrometry 铜及铜合金化学分析方法 第28部分:铬、铁、锰、钴、镍、锌、砷、硒、银、镉、锡、锑、碲、铅和铋含量的测定 电感耦合等离子体质谱法 |
China National Standards LED |
English PDF |
GB/T 10827.2-2021 |
Industrial trucks -- Safety requirements and verification -- Part 2: Self-propelLED variable-reach trucks 工业车辆? 安全要求和验证? 第2部分:自行式伸缩臂式叉车 |
China National Standards LED |
English PDF |
GB/T 41154-2021 |
Metallic materials—Multiaxial fatigue testing—Axial-torsional strain-controlLED thermo-mechanical fatigue testing method 金属材料 多轴疲劳试验 轴向-扭转应变控制热机械疲劳试验方法 |
China National Standards LED |
English PDF |
GB/T 41232.2-2021 |
Nanomanufacturing -- Key control characteristics -- Nano-enabLED electrical energy storage -- Part 2: Density measurement of cathode nanomaterials 纳米制造 关键控制特性 纳米储能 第2部分:纳米正极材料的密度测试 |
China National Standards LED |
English PDF |
GB/T 40989-2021 |
Press and publication -- KnowLEDge services -- Knowledge object identifier(KOI) 新闻出版 知识服务 知识对象标识符(KOI) |
China National Standards LED |
English PDF |
GB/T 24320-2021 |
RecycLED fiber pulp 回用纤维浆 |
China National Standards LED |
English PDF |
GB/T 40963-2021 |
Frozen peeLED shrimp or prawn 冻虾仁 |
China National Standards LED |
English PDF |
GB/T 41166-2021 |
Quality requirements for enamelLED cast iron cookwares 铸铁搪瓷炊具质量要求 |
China National Standards LED |
English PDF |
GB/T 20871.63-2021 |
Organic light emitting diode (OLED) displays—Part 6-3:Measuring methods of image quality 有机发光二极管显示器件 第6-3部分:图像质量测试方法 |
China National Standards LED |
English PDF |
GB/T 40962-2021 |
Dried boiLED abalone 干鲍鱼 |
China National Standards LED |
English PDF |
GB/T 10827.1-2014 |
Industrial trucks—Safety requirements and verification—Part 1:Self-propelLED industrial trucks, other than driverless trucks,variable-reach trucks and burden-carrier trucks 工业车辆 安全要求和验证 第1部分:自行式工业车辆(除无人驾驶车辆、伸缩臂式叉车和载运车) |
China National Standards LED |
English PDF |
GB/T 40006.9-2021 |
Plastics—RecycLED plastics—Part 9:Poly(ethylene terephthalate) (PET) materials 塑料 再生塑料 第9部分:聚对苯二甲酸乙二醇酯(PET)材料 |
China National Standards LED |
English PDF |
GB/T 40006.8-2021 |
Plastics—RecycLED plastics—Part 8: Polyamide (PA) materials 塑料 再生塑料 第8部分:聚酰胺(PA)材料 |
China National Standards LED |
English PDF |
GB/T 40006.7-2021 |
Plastics—RecycLED plastics—Part 7: Polycarbonate(PC) materials 塑料 再生塑料 第7部分:聚碳酸酯(PC)材料 |
China National Standards LED |
English PDF |
GB/T 40006.6-2021 |
Plastics—RecycLED plastics—Part 6: Polystyrene(PS)and impact-resistant polystyrene(PS-I) materials 塑料 再生塑料 第6部分:聚苯乙烯(PS)和抗冲击聚苯乙烯(PS-I)材料 |
China National Standards LED |
English PDF |
GB/T 40006.5-2021 |
Plastics—RecycLED plastics—Part 5:Acrylonitrile-butadiene-styrene (ABS) materials 塑料 再生塑料 第5部分:丙烯腈-丁二烯-苯乙烯(ABS)材料 |
China National Standards LED |
English PDF |
GB/T 38428.2-2021 |
Direct current (DC) plugs and socket-outlets for information and communication technology (ICT) equipment instalLED in data centres and telecom central offices—Part 2: Plug and socket-outlet system for 5.2 kW 数据中心和电信中心机房安装的信息和通信技术(ICT)设备用直流插头插座 第2部分:5.2 kW插头插座系统 |
China National Standards LED |
English PDF |
GB/T 3836.32-2021 |
Explosive atmospheres—Part 32:Intrinsically safe systems with electronically controlLED spark duration limitation 爆炸性环境 第32部分:电子控制火花时限本质安全系统 |
China National Standards LED |
English PDF |
GB/T 12274.4-2021 |
Quartz crystal controlLED oscillators of assessed quality—Part 4: Sectional specification—Capability approval 有质量评定的石英晶体振荡器 第4部分:分规范 能力批准 |
China National Standards LED |
English PDF |
GB/T 40868-2021 |
Planning and design of controlLED environments for research and production at the nanometer scale 纳米尺度科研生产受控环境规划与设计 |
China National Standards LED |
English PDF |
GB/T 25915.12-2021 |
Cleanrooms and associated controlLED environments—Part 12: Specifications for monitoring of air cleanliness by nanoscale particle concentration 洁净室及相关受控环境 第12部分:监测空气中纳米粒子浓度的技术要求 |
China National Standards LED |
English PDF |
GB/T 8601-2021 |
Forged and rolLED solid wheels for railway 铁路用辗钢整体车轮 |
China National Standards LED |
English PDF |
GB/T 40464-2021 |
Technical requirements for processing of chilLED meat 冷却肉加工技术要求 |
China National Standards LED |
English PDF |
GB/T 40798-2021 |
Chemical analysis method of ion-adsorption rare earth ore—Determination of total rare earth contents—Inductively coupLED plasma mass spectrometry 离子型稀土原矿化学分析方法 稀土总量的测定 电感耦合等离子体质谱法 |
China National Standards LED |
English PDF |
GB/T 20933-2021 |
Hot rolLED sheet pile 热轧钢板桩 |
China National Standards LED |
English PDF |
GB/T 40383-2021 |
Hot-rolLED twin-roll cast carbon steel sheet and strip of commercial quality 商品级双辊铸轧热轧碳素钢薄钢板及钢带 |
China National Standards LED |
English PDF |
GB/T 40411-2021 |
Packaged units for supplying hot, cooling or chilLED water 模块式空调机房设备 |
China National Standards LED |
English PDF |
GB/T 40410-2021 |
Metallic materials—Multiaxial fatigue testing—Axial-torsional strain-controlLED method 金属材料 多轴疲劳试验 轴向-扭转应变控制方法 |
China National Standards LED |
English PDF |
GB/T 40408-2021 |
Nuclear grade isostatic graphite for high temperature gas-cooLED reactor internals 高温气冷堆堆内构件用核级等静压石墨 |
China National Standards LED |
English PDF |
GB/T 40358-2021 |
Toilet tissue paper and hand towel—Specification for the use of recycLED fiber 卫生纸和擦手纸 回用纤维使用规范 |
China National Standards LED |
English PDF |
GB/T 40351-2021 |
Ecological technical requirements for recycLED Poly(ethylene terephthalate) fiber 循环再利用涤纶生态技术要求 |
China National Standards LED |
English PDF |
GB/T 40327-2021 |
Test methods of guided motion performance for wheeLED mobile robot 轮式移动机器人导引运动性能测试方法 |
China National Standards LED |
English PDF |
GB/T 40282-2021 |
Hot-rolLED twin roll cast steel sheets and strips of structural quality and high strength steel 结构级和高强度双辊铸轧热轧薄钢板及钢带 |
China National Standards LED |
English PDF |
GB/T 25915.8-2021 |
Cleanrooms and associated controlLED environments—Part 8: Classification of air cleanliness by chemical concentration (ACC) 洁净室及相关受控环境 第8部分:按化学物浓度划分空气洁净度(ACC)等级 |
China National Standards LED |
English PDF |
GB/T 25915.2-2021 |
Cleanrooms and associated controlLED environments—Part 2: Monitoring to provide evidence of cleanroom performance related to air cleanliness by particle concentration 洁净室及相关受控环境 第2部分:洁净室空气粒子浓度的监测 |
China National Standards LED |
English PDF |
GB/T 25915.1-2021 |
Cleanrooms and associated controlLED environments—Part 1: Classification of air cleanliness by particle concentration 洁净室及相关受控环境 第1部分:按粒子浓度划分空气洁净度等级 |
China National Standards LED |
English PDF |
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