China National Standards

China LC GB Standards English PDF List


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.
  •  China "LC" GB Standards English PDF List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 43544-2023 Oral cleaning and care products Laboratory test method for the inhibition rate of toothpaste on dental caLCulus
    口腔清洁护理用品 牙膏对牙结石抑制率的实验室测试方法
    China National Standards
    LC

    English PDF
    GB/T 38216.3-2023 Steel slag Determination of free caLCium oxide content EDTA titration and thermogravimetric analysis
    钢渣 游离氧化钙含量的测定 EDTA滴定和热重分析法
    China National Standards
    LC

    English PDF
    GB/T 24609-2023 Rolling bearing rated thermal speed caLCulation method
    滚动轴承 额定热转速 计算方法
    China National Standards
    LC

    English PDF
    GB/T 15342-2023 taLCum powder
    滑石粉
    China National Standards
    LC

    English PDF
    GB/T 15341-2023 taLC
    滑石
    China National Standards
    LC

    English PDF
    GB/Z 43468.1-2023 Assistive technology systems and assistive devices for persons with disabilities - WheeLChair fastening and occupant restraint systems - Part 1: General requirements and test methods
    残障人辅助技术系统和辅助器具 轮椅车系固和乘坐者约束系统 第1部分:一般要求和试验方法
    China National Standards
    LC

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    GB 21343-2023 Energy consumption limits per unit product for caLCium carbide, vinyl acetate, polyvinyl alcohol, 1,4-butanediol, dicyandiamide and cyanamide
    电石、乙酸乙烯酯、聚乙烯醇、1,4-丁二醇、双氰胺和单氰胺单位产品能源消耗限额
    China National Standards
    LC

    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
    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
    LC

    English PDF
    GB/T 43288-2023 Plastics. Soil biodegradable materials for agricultural and horticultural muLCh films. Requirements and test methods for biodegradability, ecotoxicity and composition control.
    塑料 农业和园艺地膜用土壤生物降解材料 生物降解性能、生态毒性和成分控制的要求和试验方法
    China National Standards
    LC

    English PDF
    GB/T 28924-2023 Guidelines for CaLCulation of Energy Efficiency Index for Steel Enterprises
    钢铁企业能效指数计算导则
    China National Standards
    LC

    English PDF
    GB/Z 41082.2-2023 WheeLChairs Part 2: Typical values and recommended limit values of dimensions, mass and operating space measured according to GB/Z 18029.5
    轮椅车 第2部分:按GB/Z 18029.5测得的尺寸、质量和操作空间的典型值和推荐限制值
    China National Standards
    LC

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    GB/T 43400-2023 Road vehicles Trailers below 3.5t CaLCulation of mechanical strength of steel drawbars
    道路车辆 3.5t以下挂车 钢制牵引杆机械强度计算
    China National Standards
    LC

    English PDF
    GB/T 19515-2023 Road vehicles reusability and recycling rates requirements and caLCulation methods
    道路车辆 可再利用率和可回收利用率 要求及计算方法
    China National Standards
    LC

    English PDF
    GB/T 12428-2023 CaLCulation method of passenger car loading mass
    客车装载质量计算方法
    China National Standards
    LC

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    GB/T 43349-2023 CaLCareous materials Determination of neutralization value Titration method
    石灰质材料 中和值的测定 滴定法
    China National Standards
    LC

    English PDF
    GB/T 43274-2023 Inorganic soil conditioners - Determination of total caLCium and magnesium content
    无机土壤调理剂 总钙和镁含量的测定
    China National Standards
    LC

    English PDF
    GB/T 3510-2023 Determination of plasticity of unvuLCanized rubber - Rapid plastometer method
    未硫化橡胶 塑性的测定 快速塑性计法
    China National Standards
    LC

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    GB 1903.63-2023 National Food Safety Standard Food Nutritional Enhancer CaLCium Glycerophosphate
    食品安全国家标准 食品营养强化剂 甘油磷酸钙
    China National Standards
    LC

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    GB 5009.225-2023 National food safety standards Determination of ethanol concentration in wine and edible aLCohol
    食品安全国家标准 酒和食用酒精中乙醇浓度的测定
    China National Standards
    LC

    English PDF
    GB 1886.356-2022 National Food Safety Standard Food Additive CaLCium Propionate
    食品安全国家标准 食品添加剂 丙酸钙
    China National Standards
    LC

    English PDF
    GB 1903.53-2021 National Food Safety Standard Food Nutritional Enhancer D-CaLCium Pantothenate
    食品安全国家标准 食品营养强化剂 D-泛酸钙
    China National Standards
    LC

    English PDF
    GB 1886.333-2021 National Food Safety Standard Food Additive CaLCium Dihydrogen Phosphate
    食品安全国家标准 食品添加剂 磷酸二氢钙
    China National Standards
    LC

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    GB 1886.332-2021 National Food Safety Standard Food Additive TricaLCium Phosphate
    食品安全国家标准 食品添加剂 磷酸三钙
    China National Standards
    LC

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    GB 1886.326-2021 National Food Safety Standard Food Additive Acid CaLCium Pyrophosphate
    食品安全国家标准 食品添加剂 酸式焦磷酸钙
    China National Standards
    LC

    English PDF
    GB 1886.3-2021 National Food Safety Standard Food Additive CaLCium Hydrogen Phosphate
    食品安全国家标准 食品添加剂 磷酸氢钙
    China National Standards
    LC

    English PDF
    GB/T 43235-2023 Urban ecosystem comprehensive assessment index system and caLCulation method
    城市生态系统综合评估指标体系及计算方法
    China National Standards
    LC

    English PDF
    GB/T 43019.7-2023 Determination of water vapor transmission rate of plastic films and sheets Part 7: CaLCium corrosion method
    塑料薄膜和薄片水蒸气透过率的测定 第7部分:钙腐蚀法
    China National Standards
    LC

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    GB/T 42982-2023 CaLCulation method of average working time between failures for industrial robots
    工业机器人平均无故障工作时间计算方法
    China National Standards
    LC

    English PDF
    GB/T 19590-2023 Nano caLCium carbonate
    纳米碳酸钙
    China National Standards
    LC

    English PDF
    GB/T 42960-2023 CaLCulation method of meteorological factors in the delineation and assessment of ecological protection red lines
    生态保护红线划定与评估中气象因子计算方法
    China National Standards
    LC

    English PDF
    GB/T 15969.10-2023 Programmable Controller Part 10: XML Open Interaction Format for PLC
    可编程序控制器 第10部分:PLC的XML开放交互格式
    China National Standards
    LC

    English PDF
    GB/T 13021-2023 Polyolefin pipes and fittings - Determination of carbon black content - CaLCination and pyrolysis methods
    聚烯烃管材和管件 炭黑含量的测定 煅烧和热解法
    China National Standards
    LC

    English PDF
    GB/T 42511-2023 Cemented carbide - Determination of caLCium, copper, iron, potassium, magnesium, manganese, sodium, nickel and zinc in cobalt powder - Flame atomic absorption spectrometry
    硬质合金 钴粉中钙、铜、铁、钾、镁、锰、钠、镍和锌含量的测定 火焰原子吸收光谱法
    China National Standards
    LC

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    GB/T 18916.7-2023 Quotas for water withdrawals - Part 7: ALCohol
    取水定额 第7部分:酒精
    China National Standards
    LC

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    GB/T 42519-2023 Rubber Standard Reference Elastomers (SREs) for characterizing the effect of liquids on vuLCanized rubber
    橡胶 用于表征液体对硫化橡胶影响的标准参比弹性体(SREs)
    China National Standards
    LC

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    GB/T 1972.1-2023 Disc Springs Part 1: CaLCulations
    碟形弹簧 第1部分:计算
    China National Standards
    LC

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    GB/T 42757-2023 Intelligent manufacturing level evaluation index system and index caLCulation method
    智能制造水平评价指标体系及指数计算方法
    China National Standards
    LC

    English PDF
    GB/T 8152.17-2023 Methods for chemical analysis of lead concentrates - Part 17: Determination of aluminum, magnesium, iron, copper, zinc, cadmium, arsenic, antimony, bismuth, caLCium content - Inductively coupled plasma atomic emission spectrometry
    铅精矿化学分析方法 第17部分:铝、镁、铁、铜、锌、镉、砷、锑、铋、钙含量的测定 电感耦合等离子体原子发射光谱法
    China National Standards
    LC

    English PDF
    GB/T 42526-2023 ALCohol amine desulfurization and decarburization agent
    醇胺类脱硫脱碳剂
    China National Standards
    LC

    English PDF
    GB/T 42699.1-2023 Textiles - Qualitative and quantitative analysis of the proteome of certain animal hair fibers - Part 1: Analysis of reduced protein peptides by liquid chromatography-mass spectrometry (LC-ESI-MS)
    纺织品 某些动物毛纤维蛋白质组定性和定量分析 第1部分: 还原蛋白质多肽分析液相色谱质谱(LC-ESI-MS)法
    China National Standards
    LC

    English PDF
    GB/T 39248-2020 Specification for thermoplastic multi-layer (non-vuLCanized) hose and hose assemblies for conveying liquefied petroleum gas and liquefied natural gas "No. 1 Amendment"
    输送液化石油气和液化天然气用热塑性塑料多层(非硫化)软管及软管组合件 规范《第1号修改单》
    China National Standards
    LC

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    GB/T 42397-2023 CaLCulation of allowable short-circuit current when considering non-adiabatic effect
    考虑非绝热效应时允许短路电流的计算
    China National Standards
    LC

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    GB/T 15544.1-2023 CaLCulation of short-circuit current in three-phase AC system Part 1: Current calculation
    三相交流系统短路电流计算 第1部分:电流计算
    China National Standards
    LC

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    GB/T 42423-2023 Determination of dichlorobenzyl aLCohol and chlorphenesin in cosmetics - High performance liquid chromatography
    化妆品中二氯苯甲醇和氯苯甘醚的测定 高效液相色谱法
    China National Standards
    LC

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    GB/T 10343-2023 Quality requirements for edible aLCohol
    食用酒精质量要求
    China National Standards
    LC

    English PDF
    GB/T 27894.3-2023 Natural gas - Determination of composition and caLCulation of associated uncertainties by gas chromatography - Part 3: Precision and bias
    天然气 用气相色谱法测定组成和计算相关不确定度 第3部分:精密度和偏差
    China National Standards
    LC

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    GB/T 41672-2022 Surgical Implants Osteoinductive CaLCium Phosphate Bioceramics
    外科植入物 骨诱导磷酸钙生物陶瓷
    China National Standards
    LC

    English PDF
    GB/T 41523-2022 Paper, board and pulp - Determination of total magnesium, caLCium, manganese, iron and copper
    纸、纸板和纸浆 镁、钙、锰、铁及铜总量的测定
    China National Standards
    LC

    English PDF
    GB/T 41635-2022 Guidelines for Finite Element CaLCulation of Electric Field Distribution of High Altitude Electrical Equipment
    高海拔电气设备电场分布有限元计算导则
    China National Standards
    LC

    English PDF
    GB/T 16508.3-2022 Shell boilers Part 3: Design and strength caLCulations
    锅壳锅炉 第3部分:设计与强度计算
    China National Standards
    LC

    English PDF
    GB/T 41517-2022 Ships and offshore technology - Ventilation of cargo spaces of vehicles capable of traveling with internal combustion engines - Theoretical caLCulation of the total airflow demand
    船舶和海上技术 可行驶内燃机车辆的货舱的通风 气流总需量的理论计算
    China National Standards
    LC

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    GB/T 41437-2022 Determination of naringin and dinaammonium benzoate in finger painting pigments HPLC method
    指画颜料中苦味剂柚皮苷和苯甲酸地那铵含量的测定 高效液相色谱法
    China National Standards
    LC

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    GB/T 41436-2022 Determination of triclosan and Trichlorocarban in finger painting pigments HPLC method
    指画颜料中三氯生和三氯卡班含量的测定 高效液相色谱法
    China National Standards
    LC

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    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
    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
    LC

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    GB/Z 41476.3-2022 Non destructive testing instruments - radiation protection rules for X-ray equipment below 1mV - Part 3: caLCulation formulas and charts for radiation protection of X-ray equipment below 450kv
    无损检测仪器 1MV以下X射线设备的辐射防护规则 第3部分:450kV以下X射线设备辐射防护的计算公式和图表
    China National Standards
    LC

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    GB/T 41467-2022 Measurement and caLCulation of spot color gradation in printing technology
    印刷技术 专色阶调值的测量与计算
    China National Standards
    LC

    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
    LC

    English PDF
    GB/T 19749.2-2022 Coupling capacitors and capacitor dividers—Part 2: DC or AC single-phase coupling capacitor connected between line and ground for power line carrier-frequency (PLC) application
    耦合电容器及电容分压器 第2部分:接于线与地之间用于电力线路载波(PLC)的直流或交流单相耦合电容器
    China National Standards
    LC

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    GB/T 41133-2022 Determination of lycopene, lutein and carotene in tomato products—Ultra performance liquid chromatography(UPLC) method
    番茄制品中番茄红素、叶黄素、胡萝卜素含量的测定  超高效液相色谱法
    China National Standards
    LC

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    GB/T 4333.8-2022 Ferrosilicon—Determination of caLCium content—Flame atomic absorption spectrometry
    硅铁 钙含量的测定 火焰原子吸收光谱法
    China National Standards
    LC

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    GB/T 3286.11-2022 Methods for chemical analysis of limestone and dolomite—Part 11: Determination of caLCium oxide, magnesium oxide, silicon dioxide, aluminium oxide and iron oxide content—Wavelength dispersive X-ray fluorescence spectrometry (Fused cast bead method)
    石灰石及白云石化学分析方法 第11部分:氧化钙、氧化镁、二氧化硅、氧化铝及氧化铁含量的测定 波长色散X射线荧光光谱法(熔铸玻璃片法)
    China National Standards
    LC

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    GB/T 19427-2022 Determination of 12 phenolic compounds in propolis— HPLC-MS/MS method and HPLC method
    蜂胶中12种酚类化合物含量的测定 液相色谱-串联质谱法和液相色谱法
    China National Standards
    LC

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    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
    LC

    English PDF
    GB/T 41350-2022 Remanufacturing Energy saving and emission reduction evaluation index and caLCulation method
    再制造 节能减排评价指标及计算方法
    China National Standards
    LC

    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
    LC

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    GB/T 8152.16-2022 Methods for chemical analysis of lead concentrates - Part 16: Determination of caLCium oxide content - Flame atomic absorption spectrometry
    铅精矿化学分析方法 第16部分:氧化钙含量的测定 火焰原子吸收光谱法
    China National Standards
    LC

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    GB/T 41333-2022 Technical requirements for complete sets of equipment for lime caLCination
    石灰煅烧成套装备技术要求
    China National Standards
    LC

    English PDF
    GB/T 41270.9-2022 Avionics process management—Effects of atmospheric radiation—Part 9: Procedures and methods for caLCulating single event effect failure rates for avionics
    航空电子过程管理 大气辐射影响 第9部分:航空电子设备单粒子效应故障率计算程序与方法
    China National Standards
    LC

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    GB/T 41340.2-2022 Technical Specifications for CaLCulation of Power Generation of Ocean Power Stations Part 2: Wave Energy
    海洋能电站发电量计算技术规范 第2部分:波浪能
    China National Standards
    LC

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    GB/T 41340.1-2022 Technical Specification for CaLCulation of Power Generation of Ocean Power Station Part 1: Tidal Current
    海洋能电站发电量计算技术规范 第1部分:潮流能
    China National Standards
    LC

    English PDF
    GB/T 29341-2022 CaLCium aluminate for water treatment chemicals
    水处理剂用铝酸钙
    China National Standards
    LC

    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
    LC

    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
    LC

    English PDF
    GB/T 42210-2022 Point-to-point (P2P) signal interface for LCD display Electrical parameters
    液晶显示屏用点对点(P2P)信号接口 电参数
    China National Standards
    LC

    English PDF
    GB/T 42279-2022 VuLCanized or thermoplastic rubber Determination of tensile set at constant elongation and determination of tensile set, elongation and creep at constant tensile load
    硫化橡胶或热塑性橡胶 在恒定伸长率下测定拉伸永久变形及在恒定拉伸载荷下测定拉伸永久变形、伸长率和蠕变
    China National Standards
    LC

    English PDF
    GB/T 42278-2022 VuLCanized rubber - Determination of hot tensile stress
    硫化橡胶 热拉伸应力的测定
    China National Standards
    LC

    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
    LC

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    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
    LC

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    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
    LC

    English PDF
    GB/T 41941-2022 VuLCanized rubber - Determination of fatigue crack growth rate
    硫化橡胶 疲劳裂纹扩展速率的测定
    China National Standards
    LC

    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
    LC

    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
    LC

    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
    LC

    English PDF
    GB/T 20657-2022 Oil and gas industry - Performance formulas and caLCulations for casing, tubing, drill pipe, and line pipe used as casing or tubing
    石油天然气工业 套管、油管、钻杆和用作套管或油管的管线管性能公式及计算
    China National Standards
    LC

    English PDF
    GB 41618-2022 Emission standard of air pollutants for lime and caLCium carbide industry
    石灰、电石工业大气污染物排放标准
    China National Standards
    LC

    English PDF
    GB/T 32561.5-2022 Infrared Optical ChaLCogenide Glass Test Methods Part 5: Stress Birefringence
    红外光学硫系玻璃测试方法 第5部分:应力双折射
    China National Standards
    LC

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

    English PDF
    GB/T 41683-2022 Determination of the banned substance coLChicine and its derivative colcemid in cosmetics by liquid chromatography-tandem mass spectrometry
    化妆品中禁用物质秋水仙碱及其衍生物秋水仙胺的测定 液相色谱-串联质谱法
    China National Standards
    LC

    English PDF
    GB/T 18029.2-2022 WheeLChairs - Part 2: Determination of the dynamic stability of electric wheelchairs
    轮椅车 第2部分:电动轮椅车动态稳定性的测定
    China National Standards
    LC

    English PDF
    GB/T 18029.25-2022 WheeLChairs - Part 25: Batteries and chargers for electric wheelchairs
    轮椅车 第25部分:电动轮椅车的电池和充电器
    China National Standards
    LC

    English PDF
    GB/T 40887.2-2022 WheeLChairs and occupant restraint systems for barrier-free passenger cars - Part 2: Forward-facing wheelchair occupant systems
    无障碍客车的轮椅车及乘坐者限位系统 第2部分: 前向式轮椅车乘坐者系统
    China National Standards
    LC

    English PDF
    GB/T 30661.6-2022 Seats for wheeLChairs - Part 6: Simulated use and determination of seat cushion performance changes
    轮椅车座椅 第6部分:模拟使用和座垫性能变化的测定
    China National Standards
    LC

    English PDF
    GB/T 41877.1-2022 Plastics - Ethylene-vinyl aLCohol (EVOH) copolymer molding and extrusion materials - Part 1: Nomenclature system and basis of classification
    塑料 乙烯-乙烯醇(EVOH)共聚物模塑和挤出材料 第1部分:命名系统和分类基础
    China National Standards
    LC

    English PDF
    GB/T 41877.2-2022 Plastics - Ethylene-vinyl aLCohol (EVOH) copolymer molding and extrusion materials - Part 2: Specimen preparation and property determination
    塑料 乙烯-乙烯醇(EVOH)共聚物模塑和挤出材料 第2部分: 试样制备和性能测定
    China National Standards
    LC

    English PDF
    GB/T 40370-2021 CaLCulation methods for energy consumption index of gas-steam combined cycle cogeneration
    燃气-蒸汽联合循环热电联产能耗指标计算方法
    China National Standards
    LC

    English PDF
    GB/T 40329-2021 Electrical equipment and system of industrial machines—PLC programme in numerical control system
    工业机械电气设备及系统 数控PLC编程语言
    China National Standards
    LC

    English PDF
    GB/T 40323-2021 Determination of octamethyLCyclotetrasiloxane(D4), decamethylcyclopentasiloxane(D5) and dodecamethylcyclohexasiloxane(D6) in textile dyeing and finishing auxiliaries
    纺织染整助剂产品中八甲基环四硅氧烷(D4)、十甲基环五硅氧烷(D5)和十二甲基环六硅氧烷(D6)的测定
    China National Standards
    LC

    English PDF
    GB/T 40293-2021 Test method for refractive index of infrared optical chaLCogenide films
    红外硫系光学薄膜折射率测试方法
    China National Standards
    LC

    English PDF
    GB/T 26520-2021 CaLCium chloride for industrial use
    工业氯化钙
    China National Standards
    LC

    English PDF
    GB/T 23957-2021 Light caLCium carbonate for tooth-paste industry
    牙膏工业用轻质碳酸钙
    China National Standards
    LC

    English PDF

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