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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 46723-2025 |
Aerospace MJ Thread Single-Ear Support Floating SeLF-Locking Nuts with Countersunk Head Dimensions 航空航天用带沉头窝的MJ螺纹单耳托板游动自锁螺母 - 尺寸 |
China National Standards LF |
 English PDF |
| GB/T 46722-2025 |
Aerospace MJ Thread Hexagonal SeLF-Locking Nuts - Dimensions 航空航天用MJ螺纹六角自锁螺母 - 尺寸 |
China National Standards LF |
English PDF |
| GB/T 46757-2025 |
Pulp - SuLFate Black Liquors - Determination of Residual Alkali (Potentiometric Titration Method) 纸浆 - 硫酸盐法黑液 - 残碱的测定（电位滴定法） |
China National Standards LF |
English PDF |
| GB/T 46754-2025 |
Pulp - SuLFate Digestion Liquors and Black Liquors - Determination of Hydrogen Sulfide Ion Concentration (Potentiometric Titration Method) 纸浆 - 硫酸盐法蒸煮液和黑液 - 硫氢根离子浓度的测定（电位滴定法） |
China National Standards LF |
English PDF |
| GB/T 46758-2025 |
Pulp - SuLFate Digestion Liquors - Determination of Total Alkali, Active Alkali and Effective Alkali (Potentiometric Titration Method) 纸浆 - 硫酸盐法蒸煮液 - 总碱、活性碱和有效碱的测定（电位滴定法） |
China National Standards LF |
English PDF |
| GB/T 4701.10-2025 |
Ferro-Titanium - Determination of SuLFur Content - Infrared Absorption Method and Combustion Neutralization Titration Method 钛铁 - 硫含量的测定 - 红外线吸收法和燃烧中和滴定法 |
China National Standards LF |
English PDF |
| GB/T 46787-2025 |
SeLF-Propelled Forestry Machinery - Operator Protection Structures (OPS) - Laboratory Tests and Performance Requirements 自行式林业机械 - 驾驶员保护结构（OPS）实验室试验和性能要求 |
China National Standards LF |
English PDF |
| GB/T 46557-2025 |
Aerospace MJ Threaded Dodecagonal SeLF-Locking Nuts with Countersunk Sockets 航空航天用带沉头窝的MJ螺纹十二角自锁螺母 |
China National Standards LF |
English PDF |
| GB/T 46805-2025 |
General Specifications for SeLF-Heating Devices for Food Use 食品用自热装置质量通则 |
China National Standards LF |
English PDF |
| GB/T 46553-2025 |
Natural Gas - Analysis of Composition by Gas Chromatography - Rapid Determination of Routine Components and SuLFur Compounds Using an Integrated Comprehensive Analyzer 天然气 - 气相色谱法分析组成 - 一体化综合分析仪快速测定常规组分和硫化合物含量 |
China National Standards LF |
English PDF |
| GB/T 46550.1-2025 |
Natural Gas - Determination of Odorants - Part 1: Determination of Tetrahydrothiophene and SuLFur-Free Odorants by Photoionization Gas Chromatography 天然气 - 加臭剂的测定 - 第1部分：用光离子化气相色谱法测定四氢噻吩和无硫加臭剂含量 |
China National Standards LF |
English PDF |
| GB 7956.24-2025 |
Fire Trucks - Part 24: SeLF-Loading Fire Trucks 消防车 - 第24部分：自装卸式消防车 |
China National Standards LF |
English PDF |
| GB/T 46642-2025 |
SeLF-Propelled Forestry Machinery - Falling Object Protective Structures (FOPS) - Laboratory Tests and Performance Requirements 自行式林业机械 - 落物保护结构(FOPS) - 实验室试验和性能要求 |
China National Standards LF |
English PDF |
| GB/T 46615-2025 |
Unvulcanized Rubber - Determination of SeLF-Adhesion and Mutual Adhesion 未硫化橡胶 - 自粘性与互粘性的测定 |
China National Standards LF |
English PDF |
| GB/T 3098.5-2025 |
Mechanical properties of fasteners - Part 5: SeLF-tapping screws 紧固件机械性能 - 第5部分：自攻螺钉 |
China National Standards LF |
English PDF |
| GB/T 32151.54-2025 |
Greenhouse Gas Emissions Accounting and Reporting Requirements - Part 54: Industrial SuLFuric Acid Manufacturers 温室气体排放核算与报告要求 - 第54部分：工业硫酸企业 |
China National Standards LF |
English PDF |
| GB/T 20448.1-2025 |
SeLF-Propelled Forestry Machinery - Rollover Protective Structures (ROPS) Laboratory Tests and Performance Requirements - Part 1: General Machinery 自行式林业机械 - 翻滚保护结构（ROPS）实验室试验和性能要求 - 第1部分：通用机械 |
China National Standards LF |
English PDF |
| GB/T 3884.3-2025 |
Chemical Analysis Methods for Copper Concentrates - Part 3: Determination of SuLFur Content - Gravimetric and Combustion Titration Methods 铜精矿化学分析方法 - 第3部分：硫含量的测定 - 重量法和燃烧滴定法 |
China National Standards LF |
English PDF |
| GB/T 33653-2025 |
Energy Consumption Testing and Calculation Methods for OiLField Production Systems 油田生产系统能耗测试和计算方法 |
China National Standards LF |
English PDF |
| GB/T 19229.2-2025 |
Coal-Fired Flue Gas DesuLFurization Equipment - Part 2: Dry/Semi-Dry Desulfurization Equipment for Coal-Fired Flue Gas 燃煤烟气脱硫设备 - 第2部分：燃煤烟气干法/半干法脱硫设备 |
China National Standards LF |
English PDF |
| GB/T 30191-2025 |
Photocatalytic SeLF-Cleaning Coating Materials for Exterior Walls 外墙光催化自洁涂覆材料 |
China National Standards LF |
English PDF |
| GB/T 21508-2025 |
Performance Test Methods for Coal-Fired Flue Gas DesuLFurization Equipment 燃煤烟气脱硫设备性能测试方法 |
China National Standards LF |
English PDF |
| GB/T 46366-2025 |
General Technical Specifications for SeLF-Propelled Pipeline Inspection Robots 自驱式管道内检测机器人通用技术规范 |
China National Standards LF |
English PDF |
| GB/T 25304-2025 |
Non-Vascular SeLF-Expanding Metal Stent Systems 非血管自扩张金属支架系统 |
China National Standards LF |
English PDF |
| GB/T 46322-2025 |
SeLF-Anchoring Joint System for Ductile Iron Pipes - Method for Calculating Self-Anchoring Length 球墨铸铁管自锚接口系统 - 自锚长度计算方法 |
China National Standards LF |
English PDF |
| GB/T 11848.10-2025 |
Methods of Analysis for Uranium Ore Concentrates - Part 10: Determination of SuLFur - Infrared Absorption Method 铀矿石浓缩物分析方法 - 第10部分：硫的测定 - 红外吸收法 |
China National Standards LF |
English PDF |
| GB/T 6109.17-2025 |
Enameled Round Winding Wire - Part 17: 180°C SeLF-Adhesive Straight-Weld Polyesterimide Enameled Copper Round Wire 漆包圆绕组线 - 第17部分：180级自粘性直焊聚酯亚胺漆包铜圆线 |
China National Standards LF |
English PDF |
| GB/T 46325-2025 |
Vulcanized Rubber - Determination of Free SuLFur Content - Gas Chromatography (GC) and High-Performance Liquid Chromatography (HPLC) 硫化橡胶 - 游离硫含量的测定 - 气相色谱法（GC）和高效液相色谱法（HPLC） |
China National Standards LF |
English PDF |
| GB/T 46387-2025 |
Determination of Chondroitin SuLFate Protease Activity 硫酸软骨素酶活力的测定 |
China National Standards LF |
English PDF |
| GB/T 6675.10-2025 |
Toy Safety - Part 10: OLFactory Board Games, Cosmetic Sets, and Taste-Based Toys 玩具安全 - 第10部分：嗅觉板游戏玩具、化妆套具玩具和味觉游戏玩具 |
China National Standards LF |
English PDF |
| GB 38228-2025 |
Respiratory Protection - SeLF-Contained Closed-Circuit Oxygen Escape Apparatus 呼吸防护-自给闭路式氧气逃生呼吸器 |
China National Standards LF |
English PDF |
| GB 24537-2025 |
Fall Protection - SeLF-Locking Devices with Flexible Rails 坠落防护 - 带柔性导轨的自锁器 |
China National Standards LF |
English PDF |
| GB 16556-2025 |
Respiratory Protection - SeLF-Contained Open-Circuit Compressed Air Breathing Apparatus 呼吸防护 - 自给开路式压缩空气呼吸器 |
China National Standards LF |
English PDF |
| GB/T 46159-2025 |
General Technical Requirements for Underwater SeLF-Propelled Trenching Operation Systems 水下自行走挖沟作业系统通用技术要求 |
China National Standards LF |
English PDF |
| GB/T 46279-2025 |
Determination of Ammonium Chloride, Ethoxybenzamide, and SuLFadiazine in Feed 饲料中盐酸氨丙啉、乙氧酰胺苯甲酯和磺胺喹噁啉的测定 |
China National Standards LF |
English PDF |
| GB/T 28727-2025 |
Gas Analysis - Determination of Trace SuLFur Compounds in Gases - Flame Photometric Gas Chromatography Method 气体分析-气体中微量硫化合物含量的测定-火焰光度气相色谱法 |
China National Standards LF |
English PDF |
| GB/T 4702.16-2025 |
Metallic Chromium - Determination of SuLFur Content - Infrared Absorption Method and Combustion Neutralization Titration Method 金属铬 - 硫含量的测定 - 红外线吸收法和燃烧中和滴定法 |
China National Standards LF |
English PDF |
| GB/T 46052-2025 |
Corrosion of Metals and Alloys - SuLFur Dioxide Test in Humid Atmosphere (Fixed Gas Method) 金属和合金的腐蚀 - 潮湿大气中的二氧化硫试验（固定气体法） |
China National Standards LF |
English PDF |
| GB/T 4236-2025 |
SuLFur-Print Inspection Method for Steel 钢的硫印检验方法 |
China National Standards LF |
English PDF |
| GB/T 5195.4-2025 |
Chemical Analysis Methods for Fluorspar - Part 4: Determination of Total SuLFur and Sulfide Content 萤石化学分析方法 - 第4部分：总硫、硫化物含量的测定 |
China National Standards LF |
English PDF |
| GB/T 46056-2025 |
Determination of SuLFur in Refractories by Gravimetric, Photometric, and Titrimetric Methods 重量法、光度法和滴定法测定耐火材料中的硫 |
China National Standards LF |
English PDF |
| GB/T 23670-2025 |
CLT Acid (2-Amino-4-Methyl-5-ChlorobenzenesuLFonic Acid) CLT酸（2-氨基-4-甲基-5-氯苯磺酸） |
China National Standards LF |
English PDF |
| GB/T 12022-2025 |
Industrial SuLFur Hexafluoride 工业六氟化硫 |
China National Standards LF |
English PDF |
| GB/T 46100-2025 |
Aerospace MJ Threaded Reduced Size SeLF-Locking Nuts with Countersunk Sockets for Angular Support Plates 航空航天用带沉头窝的MJ螺纹减小型角形托板自锁螺母 |
China National Standards LF |
English PDF |
| GB/T 46103-2025 |
Aerospace MJ Threaded Reduced Size SeLF-Locking Nuts with Countersunk Sockets for Angular Support Plates 航空航天用带沉头窝的MJ螺纹减小型封闭角形托板自锁螺母 |
China National Standards LF |
English PDF |
| GB/T 42865.2-2025 |
Water Consumption Quotas for Service Industries - Part 2: GoLF Courses 服务业用水定额 - 第2部分：高尔夫球场 |
China National Standards LF |
English PDF |
| GB/T 46122.10-2025 |
Fireworks and Firecrackers - Test Methods for Specific Chemical Substances - Part 10: Determination of Nitrogen Content in Nitrocellulose - Ferrous SuLFate Titration Method 烟花爆竹 - 特定化学物质检测方法 - 第10部分：硝化纤维素中氮含量的测定 - 硫酸亚铁滴定法 |
China National Standards LF |
English PDF |
| GB/T 36380-2025 |
Specification for the treatment and disposal of industrial waste suLFuric acid 工业废硫酸的处理处置规范 |
China National Standards LF |
English PDF |
| GB/T 30900-2025 |
LF Furnace Refining Slag Agglomerates for Steelmaking 炼钢用LF炉精炼渣团块 |
China National Standards LF |
English PDF |
| GB/T 21840-2025 |
Vulcanization Accelerator - N-tert-Butyl-1,3-Benzothiazole-2-SuLFonamide (TBBS) 硫化促进剂-N-叔丁基-1，3-苯并噻唑-2-次磺酰胺（TBBS） |
China National Standards LF |
English PDF |
| GB/T 19542-2025 |
Determination of SuLFonamides in Feed - Liquid Chromatography - Tandem Mass spectrometry 饲料中磺胺类药物的测定-液相色谱-串联质谱法 |
China National Standards LF |
English PDF |
| GB/T 14447-2025 |
Test Methods for the Electrostatic Properties of Plastic Films - HaLF-Life Method 塑料薄膜静电性测试方法-半衰期法 |
China National Standards LF |
English PDF |
| GB/T 4699.2-2025 |
Ferrochrome, silicon-chromium alloys, ferrochrome nitride, and high-nitrogen ferrochrome - Determination of chromium content - Ammonium persuLFate oxidation titration and potentiometric titration 铬铁、硅铬合金、氮化铬铁和高氮铬铁-铬含量的测定-过硫酸铵氧化滴定法和电位滴定法 |
China National Standards LF |
English PDF |
| GB/T 6730.23-2025 |
Iron Ore - Determination of Titanium Content - Ammonium Ferric SuLFate Titration 铁矿石-钛含量的测定-硫酸铁铵滴定法 |
China National Standards LF |
English PDF |
| GB/T 21931.2-2025 |
Ferro-Nickel - Determination of SuLFur Content - Infrared Absorption Method for Induction Furnace Combustion 镍铁-硫含量的测定-感应炉燃烧红外线吸收法 |
China National Standards LF |
English PDF |
| GB/T 44165.8-2025 |
Detection Methods for Key Chemical Substances in Consumer Products - Part 8: Perfluorooctane SuLFonic Acid (PFOS) and Perfluorooctanoic Acid (PFOA) PFOA) 消费品中重点化学物质检测方法-第8部分：全氟辛烷磺酸（PFOS）和全氟辛酸（PFOA） |
China National Standards LF |
English PDF |
| GB/T 45799-2025 |
Enterprise Standard SeLF-Declaration Public Information Basic Data Elements 企业标准自我声明公开信息基础数据元 |
China National Standards LF |
English PDF |
| GB/T 45801-2025 |
Enterprise Standard SeLF-Declaration Public Data Synchronization Requirements 企业标准自我声明公开数据同步要求 |
China National Standards LF |
English PDF |
| GB/T 17934.6-2025 |
Printing Technology - Process Control of HaLFtone Separation Plates, Proofs, and Production Prints - Part 6: Flexographic Printing 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6部分：柔性版印刷 |
China National Standards LF |
English PDF |
| GB/T 45648.2-2025 |
Technical Specifications for Energy Dissipators for HVDC Transmission - Part 2: AC Controllable SeLF-Restoring Energy Dissipators 高压直流输电用消能装置技术规范-第2部分：交流可控自恢复消能装置 |
China National Standards LF |
English PDF |
| GB/T 45648.1-2025 |
Technical Specifications for Energy Dissipators for HVDC Transmission - Part 1: DC Controllable SeLF-Restoring Energy Dissipators 高压直流输电用消能装置技术规范-第1部分：直流可控自恢复消能装置 |
China National Standards LF |
English PDF |
| GB/T 18867-2025 |
Electron gas - SuLFur hexafluoride 电子气体-六氟化硫 |
China National Standards LF |
English PDF |
| GB/T 20130-2025 |
SeLF-Shielded Electron Beam Radiation Processing Devices 自屏蔽电子束辐射加工装置 |
China National Standards LF |
English PDF |
| GB/T 45625-2025 |
Determination of HydroxymethyLFurfural in Royal Jelly and Freeze-Dried Royal Jelly Powder - High Performance Liquid Chromatography 蜂王浆及蜂王浆冻干粉中羟甲基糠醛含量的测定-高效液相色谱法 |
China National Standards LF |
English PDF |
| GB/T 45599-2025 |
Liquid Silicone Rubber - SeLF-Lubricating Type for Connectors 液体硅橡胶-连接器用自润滑型 |
China National Standards LF |
English PDF |
| GB/T 17263-2025 |
SeLF-ballasted Fluorescent Lamps for General Lighting - Performance Specifications 普通照明用自镇流荧光灯-性能规范 |
China National Standards LF |
English PDF |
| GB/T 45275-2025 |
Determination of N,N-DimethyLFormamide in Toy and Children's Product Materials - Gas Chromatography-Mass Spectrometry 玩具及儿童用品材料中N,N-二甲基甲酰胺的测定-气相色谱-质谱法 |
China National Standards LF |
English PDF |
| GB/T 20972.2-2025 |
Petroleum and Natural Gas Industries - Materials for Use in Hydrogen SuLFide-Containing Environments in Oil and Gas Production - Part 2: Cracking-Resistant Carbon Steel, Low-Alloy Steel, and Cast Iron 石油天然气工业-油气开采中用于含硫化氢环境的材料-第2部分：抗开裂碳钢、低合金钢和铸铁 |
China National Standards LF |
English PDF |
| GB/T 20972.3-2025 |
Petroleum and Natural Gas Industries - Materials for Use in Hydrogen SuLFide-Containing Environments in Oil and Gas Production - Part 3: Cracking-Resistant and Corrosion-Resistant Alloys and Other Alloys 石油天然气工业-油气开采中用于含硫化氢环境的材料-第3部分：抗开裂耐蚀合金和其他合金 |
China National Standards LF |
English PDF |
| GB/T 45215-2025 |
Dangerous Goods - Detonation Test Methods for SeLF-Reactive Substances and Organic Peroxides 危险货物-自反应物质和有机过氧化物引爆试验方法 |
China National Standards LF |
English PDF |
| GB/T 45216-2025 |
Dangerous Goods - Deflagration Test Methods for Packaged SeLF-Reactive Substances and Organic Peroxides 危险货物-自反应物质和有机过氧化物包装件爆燃试验方法 |
China National Standards LF |
English PDF |
| GB/T 45217-2025 |
Dangerous Goods - Detonation Test Methods for Packaged SeLF-Reactive Substances and Organic Peroxides 危险货物-自反应物质和有机过氧化物包装件引爆试验方法 |
China National Standards LF |
English PDF |
| GB/T 45218-2025 |
Dangerous Goods - Thermal Explosion Test Methods for Packaged SeLF-Reactive Substances and Organic Peroxides 危险货物-自反应物质和有机过氧化物包装件热爆炸试验方法 |
China National Standards LF |
English PDF |
| GB/T 45219-2025 |
Dangerous Goods - Deflagration Test Methods for SeLF-Reactive Substances and Organic Peroxides 危险货物-自反应物质和有机过氧化物爆燃试验方法 |
China National Standards LF |
English PDF |
| GB/T 45237-2025 |
Dangerous goods - Test method for determining the vent size of containers for seLF-reactive substances and organic peroxides 危险货物-自反应物质和有机过氧化物容器排气孔尺寸确定的试验方法 |
China National Standards LF |
English PDF |
| GB/T 534-2024 |
Industrial suLFuric acid 工业硫酸 |
China National Standards LF |
English PDF |
| GB/T 44935-2024 |
Nanotechnology-Measurement of the number of layers of molybdenum disuLFide flakes-Raman spectroscopy 纳米技术-二硫化钼薄片的层数测量-拉曼光谱法 |
China National Standards LF |
English PDF |
| GB 23394-2024 |
Respiratory protection-Positive pressure seLF-contained closed-circuit compressed oxygen respirator 呼吸防护-正压式自给闭路压缩氧气呼吸器 |
China National Standards LF |
English PDF |
| GB/T 35150.6-2024 |
Technical requirements for new dry process cement production equipment-Part 6: DesuLFurization system 新型干法水泥生产成套装备技术要求-第6部分：脱硫系统 |
China National Standards LF |
English PDF |
| GB/T 12690.21-2024 |
Chemical analysis methods for non-rare earth impurities in rare earth metals and their oxides-Part 21: Determination of suLFate content in rare earth oxides-Barium sulfate turbidimetry 稀土金属及其氧化物中非稀土杂质化学分析方法-第21部分：稀土氧化物中硫酸根含量的测定-硫酸钡比浊法 |
China National Standards LF |
English PDF |
| GB/T 44739-2024 |
Determination of woLFberry polysaccharides in wolfberry and its products - Ion chromatography 枸杞及其制品中枸杞多糖的测定-离子色谱法 |
China National Standards LF |
English PDF |
| GB/T 44764-2024 |
Petroleum, petrochemical and natural gas industries - Metal materials resistant to suLFide stress cracking in corrosive petroleum refining environments 石油、石化和天然气工业-腐蚀性石油炼制环境中抗硫化物应力开裂的金属材料 |
China National Standards LF |
English PDF |
| GB/T 625-2024 |
Chemical reagents - suLFuric acid 化学试剂-硫酸 |
China National Standards LF |
English PDF |
| GB/T 44348-2024 |
Technical specifications for demarcation of national public weLFare forests 国家级公益林区划界定技术规范 |
China National Standards LF |
English PDF |
| GB/T 44653-2024 |
Guidelines for on-site recycling of suLFur hexafluoride (SF6) gas 六氟化硫（SF6）气体的现场循环再利用导则 |
China National Standards LF |
English PDF |
| GB/T 44608-2024 |
Identification method for quarantine of concave-headed eLF beetles 凹额精灵小蠹检疫鉴定方法 |
China National Standards LF |
English PDF |
| GB/T 44341-2024 |
Determination of total suLFur content in fertilizers - High temperature combustion method 肥料中总硫含量的测定-高温燃烧法 |
China National Standards LF |
English PDF |
| GB/T 4706.125-2024 |
Safety of household and similar electrical appliances - Part 125: Special requirements for seLF-balancing manned transport devices using batteries containing alkaline or other non-acid electrolytes 家用和类似用途电器的安全-第125部分：使用含碱性或其他非酸性电解质电池组的自平衡载人运输装置的特殊要求 |
China National Standards LF |
English PDF |
| GB/T 44321-2024 |
MJ thread single ear tray seLF-locking nuts with countersunk sockets for aerospace 航空航天用带沉头窝的MJ螺纹单耳托板自锁螺母 |
China National Standards LF |
English PDF |
| GB/T 44243-2024 |
Hydrogen for Proton Exchange Membrane Fuel Cell Vehicles - Determination of SuLFur Compounds, Formaldehyde and Organic Halides - Gas Chromatography 质子交换膜燃料电池汽车用氢气-含硫化合物、甲醛和有机卤化物的测定-气相色谱法 |
China National Standards LF |
English PDF |
| GB/T 21395-2024 |
Dimethyl SuLFoxide 二甲基亚砜 |
China National Standards LF |
English PDF |
| GB-29141-2024 |
Industrial suLFuric acid, dilute nitric acid and glacial acetic acid per unit product energy consumption limit 工业硫酸、稀硝酸和冰醋酸单位产品能源消耗限额 |
China National Standards LF |
English PDF |
| GB/T 2910.11-2024 |
Textiles - Quantitative chemical analysis - Part 11: Mixtures of certain cellulose fibers with certain other fibers (suLFuric acid method) 纺织品-定量化学分析-第11部分：某些纤维素纤维与某些其他纤维的混合物（硫酸法） |
China National Standards LF |
English PDF |
| GB/T 43928-2024 |
Commercial off-the-sheLF (COTS) device assurance guide for aerospace 宇航用商业现货（COTS）器件保证指南 |
China National Standards LF |
English PDF |
| GB/T 43657.2-2024 |
Energy efficiency of industrial vehicles - Test methods - Part 2: SeLF-propelled vehicles, tractors and carriers controlled by operators 工业车辆能效-试验方法-第2部分：操作者控制的自行式车辆、牵引车和载运车 |
China National Standards LF |
English PDF |
| GB/T 24021-2024 |
Environmental management-Environmental labeling and declaration-SeLF-environmental declaration-(Type II environmental labeling) 环境管理-环境标志和声明-自我环境声明-（II型环境标志） |
China National Standards LF |
English PDF |
| GB/T 43753.3-2024 |
Chemical analysis methods for precious metal alloy electroplating wastewater-Part 3: SuLFate content Determination of - barium sulfate gravimetric method 贵金属合金电镀废水化学分析方法-第3部分：硫酸盐含量的测定-硫酸钡重量法 |
China National Standards LF |
English PDF |
| GB/T 43773-2024 |
Electronic gas-carbonyl suLFide 电子气体-羰基硫 |
China National Standards LF |
English PDF |
| GB/T 43655-2024 |
SeLF-tapping screw connections - Specifications for bottom hole diameter and tightening torque 自攻螺钉连接-底孔直径和拧紧扭矩技术条件 |
China National Standards LF |
English PDF |
| GB/T 32520-2024 |
CaLF milk replacer 交流1-kV以上架空输电和配电线路用带外串联间隙金属氧化物避雷器（EGLA） |
China National Standards LF |
English PDF |
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