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Standard Code | Standard Title | Standard Class | Order |
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GB/T 40312-2021 |
Ferrophosphorus—Determination of phosphorus, silicon, manganese and titanium content—Wavelength dispersive X-ray fluorescence spectrometry method (fused cast bead method) 磷铁 磷、硅、锰和钛含量的测定 波长色散X射线荧光光谱法(熔铸玻璃片法) |
China National Standards tent |
English PDF |
GB/T 40311-2021 |
Vanadium slag—Determination of multi-element contents—Wavelength dispersive X-ray fluorescence spectrometry(fused cast bead method) 钒渣 多元素的测定 波长色散X射线荧光光谱法(熔铸玻璃片法) |
China National Standards tent |
English PDF |
GB/T 40304-2021 |
Determination of content of nonmetallic inclusions in steel—Billet full section method 钢中非金属夹杂物含量的测定 钢坯全截面法 |
China National Standards tent |
English PDF |
GB/T 40281-2021 |
Determination of content of nonmetallic inclusions in steel—Extremum analytical method 钢中非金属夹杂物含量的测定 极值分析法 |
China National Standards tent |
English PDF |
GB/T 39715.4-2021 |
Plastics—Biobased content—Part 4: Determination of biobased mass content 塑料 生物基含量 第4部分:生物基物质含量的测定 |
China National Standards tent |
English PDF |
GB/T 39715.3-2021 |
Plastics—Biobased content—Part 3:Determination of biobased synthetic polymer content 塑料 生物基含量 第3部分:生物基合成聚合物含量的测定 |
China National Standards tent |
English PDF |
GB/T 39715.2-2021 |
Plastics—Biobased content—Part 2: Determination of biobased carbon content 塑料 生物基含量 第2部分:生物基碳含量的测定 |
China National Standards tent |
English PDF |
GB/T 39715.1-2021 |
Plastics—Biobased content—Part 1: General principles 塑料 生物基含量 第1部分:通用原则 |
China National Standards tent |
English PDF |
GB/T 34830.2-2021 |
Collection specifications for credit information—Part 2: Contents 信用信息征集规范 第2部分:内容 |
China National Standards tent |
English PDF |
GB/T 34520.8-2021 |
Test methods of continuous silicon carbide fibers—Part 8:Oxygen content 连续碳化硅纤维测试方法 第8部分:氧含量 |
China National Standards tent |
English PDF |
GB/T 20899.6-2021 |
Methods for chemical analysis of gold ores—Part 6: Determination of zinc content 金矿石化学分析方法 第6部分:锌量的测定 |
China National Standards tent |
English PDF |
GB/T 20899.5-2021 |
Methods for chemical analysis of gold ores—Part 5: Determination of lead content 金矿石化学分析方法 第5部分:铅量的测定 |
China National Standards tent |
English PDF |
GB/T 20899.4-2021 |
Methods for chemical analysis of gold ores—Part 4: Determination of copper content 金矿石化学分析方法 第4部分:铜量的测定 |
China National Standards tent |
English PDF |
GB/T 15224.2-2021 |
Classification for quality of coal—Part 2: Sulfur content 煤炭质量分级 第2部分:硫分 |
China National Standards tent |
English PDF |
GB/T 14949.2-2021 |
Manganese ores—Determination of nickel content—Flame atomic absorption spectrometric method 锰矿石 镍含量的测定 火焰原子吸收光谱法 |
China National Standards tent |
English PDF |
GB/T 14949.11-2021 |
Manganese ores—Determination of carbon content—Gravimetric method and infrared absorption method 锰矿石 碳含量的测定 重量法和红外线吸收法 |
China National Standards tent |
English PDF |
GB/T 7739.6-2021 |
Methods for chemical analysis of gold concentrates—Part 6: Determination of zinc content 金精矿化学分析方法 第6部分:锌量的测定 |
China National Standards tent |
English PDF |
GB/T 7739.5-2021 |
Methods for chemical analysis of gold concentrates—Part 5: Determination of lead content 金精矿化学分析方法 第5部分:铅量的测定 |
China National Standards tent |
English PDF |
GB/T 7731.5-2021 |
Ferrotungsten—Determination of silicon content—Silicomolybdenum blue spectrophotometric method 钨铁 硅含量的测定 硅钼蓝分光光度法 |
China National Standards tent |
English PDF |
GB/T 7731.4-2021 |
Ferrotungsten—Determination of phosphorus content—Phosphorus molybdenum blue spectrophotometric method 钨铁 磷含量的测定 磷钼蓝分光光度法 |
China National Standards tent |
English PDF |
GB/T 7731.1-2021 |
Ferrotungsten—Determination of tungsten content—Cinchonine gravimetric method and ammonium nitrate gravimetric method 钨铁 钨含量的测定 辛可宁重量法和硝酸铵重量法 |
China National Standards tent |
English PDF |
GB/T 7731.10-2021 |
Ferrotungsten—Determination of carbon content—Infrared absorption method 钨铁 碳含量的测定 红外线吸收法 |
China National Standards tent |
English PDF |
GB/T 5687.13-2021 |
Ferrochromium—Determination of chromium, silicon, manganese, titanium, vanadium, iron contents—Wavelength dispersive X-ray fluorescence spectrometry (fused cast bead method) 铬铁 铬、硅、锰、钛、钒和铁含量的测定 波长色散X射线荧光光谱法(熔铸玻璃片法) |
China National Standards tent |
English PDF |
GB/T 5195.11-2021 |
Fluorspar—Determination of manganese content—Periodate spectrophotometry and flame atomic absorption spectrometry 萤石 锰含量的测定 高碘酸盐分光光度法和火焰原子吸收光谱法 |
China National Standards tent |
English PDF |
GB/T 223.90-2021 |
Iron, steel and alloy—Determination of silicon content—Inductively coupled plasma atomic emission spectrometric method 钢铁及合金 硅含量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards tent |
English PDF |
GB/T 40374-2021 |
Hardmetals—Determination of lead and cadmium content—Flame atomic absorption spectrometric method and inductively coupled plasma atomic emission spectrometry 硬质合金化学分析方法 铅量和镉量的测定 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 tent |
English PDF |
GB/T 19559-2021 |
Method of determining coalbed methane content 煤层气含量测定方法 |
China National Standards tent |
English PDF |
GB/T 40496-2021 |
Determination of antioxidant content in jet fuel—High performance liquid chromatography 喷气燃料中抗氧剂含量的测定 高效液相色谱法 |
China National Standards tent |
English PDF |
GB/T 40493-2021 |
Determination of lead, cadmium, chromium and mercury content in the finishing material of wood-based panel 人造板饰面材料中铅、镉、铬、汞重金属元素含量测定 |
China National Standards tent |
English PDF |
GB/T 40486-2021 |
Determination of melittin content in bee venom powder—High performance liquid chromatography 蜂毒干粉中蜂毒溶血肽含量的测定 高效液相色谱法 |
China National Standards tent |
English PDF |
GB/T 40543-2021 |
Petroleum and natural gas industries—Materials selection for high content CO2 for casing, tubing and downhole equipment 石油天然气工业 高含CO2环境用套管、油管及井下工具的材料选择 |
China National Standards tent |
English PDF |
GB/T 40176-2021 |
Determination of xylobiose in plant-derived products - Hydrophilic intention chromatography 植物源性产品中木二糖的测定 亲水保留色谱法 |
China National Standards tent |
English PDF |
GB/T 40114-2021 |
Jewellery—Determination of precious metal content—Difference method using inductively coupled plasma optical emission spectroscopy 首饰 贵金属含量的测定 ICP差减法 |
China National Standards tent |
English PDF |
GB/T 34520.9-2021 |
Test methods of continuous silicon carbide fibers - Part 9: Carbon content 连续碳化硅纤维测试方法 第9部分:碳含量 |
China National Standards tent |
English PDF |
GB/T 22808-2021 |
Leather and fur-Chemical tests-Determination of chlorinated phenols content 皮革和毛皮 化学试验 含氯苯酚的测定 |
China National Standards tent |
English PDF |
GB/T 14949.5-2021 |
Manganese ores一Determination of titanium content一Diantipyrylmethane spectrophotometric method 锰矿石 钛含量的测定 二安替吡啉甲烷分光光度法 |
China National Standards tent |
English PDF |
GB/T 14949.12-2021 |
Manganese ores - Determination of combined water content - Gravimetric method 锰矿石 化合水含量的测定 重量法 |
China National Standards tent |
English PDF |
GB/T 8243.12-2021 |
Methods of test for full-flow lubricating oil filters for internal combustion engines—Part 12: Filtration efficiency using particle counting and contaminant retention capacity 内燃机全流式机油滤清器试验方法 第12部分:颗粒计数法滤清效率和容灰量 |
China National Standards tent |
English PDF |
GB/T 8152.15-2021 |
Methods for chemical analysis of lead concentrates—Part 15:Determination of soluble lead content—Flame atomic absorption spectrometry 铅精矿化学分析方法 第15部分:可溶性铅含量的测定 火焰原子吸收光谱法 |
China National Standards tent |
English PDF |
GB/T 7739.4-2021 |
Methods for chemical analysis of gold concentrates—Part 4:Determination of copper content 金精矿化学分析方法 第4部分:铜量的测定 |
China National Standards tent |
English PDF |
GB/T 20373-2021 |
Determination of acetyl content in modified starch—Titrimetric method 变性淀粉中乙酰基含量的测定 滴定法 |
China National Standards tent |
English PDF |
GB/T 18216.4-2021 |
Electrical safety in low voltage distribution systems up to 1 000 V a. c and 1 500 V d. c - Equipment for testing, measuring or monitoring of protective measures - Part 4: Resistance of earth connection and equipotential bonding 交流1000V和直流1500V及以下低压配电系统电气安全 防护措施的试验、测量或监控设备 第4部分:接地电阻和等电位接地电阻 |
China National Standards tent |
English PDF |
GB 24427-2021 |
Content limitation of mercury, cadmium and lead for zinc anode primary battery 锌负极原电池汞镉铅含量的限制要求 |
China National Standards tent |
English PDF |
GB/T 11066.11-2021 |
Methods for chemical analysis of gold-Part 11:Determination of magnesium,chromium,manganese,iron,nickel copper,palladium,silver,tin,antimony,lead and bismuth contents-Inductively coupled plasma mass spectrometry 金化学分析方法 第11部分:镁、铬、锰、铁、镍、铜、钯、银、锡、锑、铅和铋含量的测定 电感耦合等离子体质谱法 |
China National Standards tent |
English PDF |
GB/T 8151.24-2021 |
Methods for chemical analysis of zinc concentrates—Part 24:Determination of soluble zinc content—Flame atomic absorption spectrometry 锌精矿化学分析方法 第24部分:可溶性锌含量的测定 火焰原子吸收光谱法 |
China National Standards tent |
English PDF |
GB/T 17650.1-2021 |
Test on gases evolved during combustion of materials from cables or optical fiber cables-Part 1:Determination of the halogen acid gas content 取自电缆或光缆的材料燃烧时释出气体的试验方法 第1部分:卤酸气体总量的测定 |
China National Standards tent |
English PDF |
GB/T 19702-2021 |
In vitro diagnostic medical devices -- Measurement of quantities in samples of biological origin -- Requirements for content and presentation of reference measurement procedures 体外诊断医疗器械 生物源性样品中量的测量 参考测量程序的表述和内容的要求 |
China National Standards tent |
English PDF |
GB/T 39748.6-2021 |
Urine-absorbing aids for incontinence—Test methods for characterizing polymer-based absorbent materials—Part 6:Gravimetric determination of fluid retention capacity in saline solution after centrifugation 失禁用尿吸收辅助器具 聚合物基质吸液材料特性的测试方法 第 6 部分: 称重法测定离心后的生理盐水保液率 |
China National Standards tent |
English PDF |
GB/T 39748.11-2021 |
Urine-absorbing aids for incontinence—Test methods for characterizing polymer-based absorbent materials—Part 11:Determination of content of respirable particles 失禁用尿吸收辅助器具 聚合物基质吸液材料特性的测试方法 第11部分:可吸入颗粒含量的测定 |
China National Standards tent |
English PDF |
GB/T 39748.10-2021 |
Urine-absorbing aids for incontinence -- Test methods for characterizing polymer-based absorbent materials -- Part 10: Determination of extractable polymer content by potentiometric titration 失禁用尿吸收辅助器具 聚合物基质吸液材料特性的测定方法 第10部分:电位滴定法测定可萃取聚合物量 |
China National Standards tent |
English PDF |
GB/T 14352.22-2021 |
Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 22:Determination of antimony content -- Hydride generation atomic fluorescence spectrometry 钨矿石、钼矿石化学分析方法 第22部分:锑量的测定 氢化物发生-原子荧光光谱法 |
China National Standards tent |
English PDF |
GB/T 14352.21-2021 |
Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 21: Determination of arsenic content -- Hydride generation atomic fluorescence spectrometry 钨矿石、钼矿石化学分析方法 第21部分:砷量的测定 氢化物发生-原子荧光光谱法 |
China National Standards tent |
English PDF |
GB/T 14352.20-2021 |
Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 20:Determination of niobium,tantalum,zirconium,hafnium and 15 rare earth elements content -- Inductively coupled plasma mass spectrometry 钨矿石、钼矿石化学分析方法 第20部分:铌、钽、锆、铪及15个稀土元素量的测定 电感耦合等离子体质谱法 |
China National Standards tent |
English PDF |
GB/T 14352.19-2021 |
Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 19: Determination of bismuth, cadmium, cobalt, copper, iron, lithium, nickel, phosphorus, lead, strontium, vanadium and zinc content -- Inductive-coupled plasma atomic emission spe 钨矿石、钼矿石化学分析方法 第19部分:铋、镉、钴、铜、铁、锂、镍、磷、铅、锶、钒和锌量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards tent |
English PDF |
GB/T 41021-2021 |
Forensic sciences -- Content and format of DNA identification report 法庭科学? DNA鉴定文书内容及格式 |
China National Standards tent |
English PDF |
GB/T 41042-2021 |
Guidance for utilization and classification of content of valuable elements in coal 煤中有价元素含量分级及应用导则 |
China National Standards tent |
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 tent |
English PDF |
GB/T 6730.25-2021 |
Iron ores—Determination of total rare earth contents—Oxalate gravimetric method 铁矿石 稀土总量的测定 草酸盐重量法 |
China National Standards tent |
English PDF |
GB/T 41104.2-2021 |
Solder wire, solid and flux cored -- Specification and test methods -- Part 2: Determination of flux content 实心和药芯软钎料丝? 规范和试验方法? 第2部分:钎剂含量的测定 |
China National Standards tent |
English PDF |
GB/T 24166-2021 |
Determination of the content of chlorinated phenols in dye products 染料产品中含氯苯酚的测定 |
China National Standards tent |
English PDF |
GB/T 6730.28-2021 |
Iron ores—Determination of fluorine content—Ion-selective electrode method 铁矿石 氟含量的测定 离子选择电极法 |
China National Standards tent |
English PDF |
GB/T 1927.4-2021 |
Test methods for physical and mechanical properties of small clear wood specimens—Part 4: Determination of moisture content 无疵小试样木材物理力学性质试验方法 第4部分:含水率测定 |
China National Standards tent |
English PDF |
GB/T 8643-2021 |
Determination of lubricant content in lubricated metal-powder mixes—Soxhlet extraction method 含润滑剂金属粉末中润滑剂含量的测定 索格利特(Soxhlet)萃取法 |
China National Standards tent |
English PDF |
GB/T 41068-2021 |
Nanotechnologies -- Determination of water-soluble anions content in graphene-related powder -- Ion chromatography method 纳米技术 石墨烯粉体中水溶性阴离子含量的测定 离子色谱法 |
China National Standards tent |
English PDF |
GB/T 41067-2021 |
Nanotechnologies -- Determination of sulfur, fluorine, chlorine and bromine content in graphene related powder -- Combustion ion chromatography method 纳米技术 石墨烯粉体中硫、氟、氯、溴含量的测定 燃烧离子色谱法 |
China National Standards tent |
English PDF |
GB/T 13277.7-2021 |
Compressed air -- Part 7:Test method for viable microbiological contaminant content 压缩空气? 第7部分:活性微生物含量测量方法 |
China National Standards tent |
English PDF |
GB/T 13277.6-2021 |
Compressed air -- Part 6:Test methods for gaseous contaminant content 压缩空气 第6部分:气态污染物含量测量方法 |
China National Standards tent |
English PDF |
GB/T 41065-2021 |
Basalt fiber -- Determination of combustible matter content 玄武岩纤维 可燃物含量的测定 |
China National Standards tent |
English PDF |
GB/T 41223-2021 |
Soil quality—Determination of potential nitrification and inhibition of nitrification—Rapid test by ammonium oxidation 土壤质量 硝化潜势和硝化抑制作用的测定 氨氧化快速检测法 |
China National Standards tent |
English PDF |
GB/T 6730.48-2021 |
Iron ores—Determination of bismuth content— Dithiodiantipyryl methane spectrophotometric method 铁矿石 铋含量的测定 二硫代二安替吡啉甲烷分光光度法 |
China National Standards tent |
English PDF |
GB/T 38478-2021 |
Determination of astaxanthin opticalisomers content—Liquid chromatography 虾青素旋光异构体含量的测定 液相色谱法 |
China National Standards tent |
English PDF |
GB/T 38479-2021 |
Determination of chitosan content -- High performance liquid chromatography 壳聚糖含量测定? 高效液相色谱法 |
China National Standards tent |
English PDF |
GB/T 41153-2021 |
Determination of boron, aluminum and nitrogen impurity content in silicon carbide single crystal -- Secondary ion mass spectrometry 碳化硅单晶中硼、铝、氮杂质含量的测定? 二次离子质谱法 |
China National Standards tent |
English PDF |
GB/T 40849-2021 |
Data contents for holo-graphic location-based map 全息位置地图数据内容 |
China National Standards tent |
English PDF |
GB/T 40998-2021 |
Determination of hydroxypropyl content in modified starch -- Spectrophotometric method 变性淀粉中羟丙基含量的测定 分光光度法 |
China National Standards tent |
English PDF |
GB/T 40915-2021 |
Determination of SiO2,Al2O3,Fe2O3,K2O,Na2O,CaO,MgO content of soda-lime-silica glass by X-ray fluorescence spectrometric method X射线荧光光谱法测定钠钙硅玻璃中SiO2、Al2O3、Fe2O3、K2O、Na2O、CaO、MgO含量 |
China National Standards tent |
English PDF |
GB/T 40887.1-2021 |
Wheelchair containment and occupant retention systems for accessible transport vehicles designed for use by both sitting and standing passengers—Part 1:Systems for rearward-facing wheelchair seated passengers 无障碍客车的轮椅车及乘坐者限位系统 第1部分:后向式轮椅车乘坐者系统 |
China National Standards tent |
English PDF |
GB/T 12690.8-2021 |
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 8:Determination of sodium content 稀土金属及其氧化物中非稀土杂质化学分析方法 第8部分:钠量的测定 |
China National Standards tent |
English PDF |
GB/T 29614-2021 |
Vulcanized rubber—Determination the content of polycyclic aromatic hydrocarbons 硫化橡胶 多环芳烃含量的测定 |
China National Standards tent |
English PDF |
GB/T 22930.2-2021 |
Leather and fur—Chemical determination of metal content—Part 2:Total metal content 皮革和毛皮 金属含量的化学测定 第2部分:金属总量 |
China National Standards tent |
English PDF |
GB/T 22930.1-2021 |
Leather and fur—Chemical determination of metal content—Part 1:Extractable metals 皮革和毛皮 金属含量的化学测定 第1部分:可萃取金属 |
China National Standards tent |
English PDF |
GB/T 40927-2021 |
Leather—Physical and mechanical tests—Determination of heat resistance of patent leather 皮革 物理和机械试验 漆皮耐热性能的测定 |
China National Standards tent |
English PDF |
GB/T 18996-2021 |
Silver jewellery alloys—Determination of silver—Volumetric (potentiometric) method using sodium chloride or potassium chloride 银合金首饰 银含量的测定 氯化钠或氯化钾容量法(电位滴定法) |
China National Standards tent |
English PDF |
GB/T 17832-2021 |
Silver jewellery alloys—Determination of silver—Volumetric (potentiometric) method using potassium bromide 银合金首饰 银含量的测定 溴化钾容量法(电位滴定法) |
China National Standards tent |
English PDF |
GB/T 40723-2021 |
Rubber—Determination the contents of total sulfur and total nitrogen — Automatic analyser method 橡胶 总硫、总氮含量的测定 自动分析仪法 |
China National Standards tent |
English PDF |
GB/T 23801-2021 |
Determination of fatty acid methyl ester (FAME) content in middle distillates—Infrared spectrometry 中间馏分油中脂肪酸甲酯含量的测定 红外光谱法 |
China National Standards tent |
English PDF |
GB/T 40789-2021 |
Gas analysis—Online automated measuring systems for content of carbon monoxide,carbon dioxide and oxygen—Determination of performance characteristics 气体分析 一氧化碳含量、二氧化碳含量和氧气含量在线自动测量系统 性能特征的确定 |
China National Standards tent |
English PDF |
GB/T 40421-2021 |
Health informatics—Messages and communication—Web access to DICOM persistent objects 健康信息学 消息与通信 DICOM持久对象的网络访问 |
China National Standards tent |
English PDF |
GB/T 40423-2021 |
Health informatics—Basic contents and format specification of health examination 健康信息学 健康体检基本内容与格式规范 |
China National Standards tent |
English PDF |
GB/T 40562-2021 |
Potentiometers for use in electronic equipment—Part 6:Sectional specification—Surface mount preset potentiometers 电子设备用电位器 第6部分:分规范 表面安装预调电位器 |
China National Standards tent |
English PDF |
GB/T 14949.6-2021 |
Manganese ores—Determination of copper,lead and zinc content—Flame atomic absorption spectrometric method 锰矿石 铜、铅和锌含量的测定 火焰原子吸收光谱法 |
China National Standards tent |
English PDF |
GB/T 12690.4-2021 |
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 4: Determination of oxygen and nitrogen contents—Impulse-infrared absorption and impulse-thermal conductivity method 稀土金属及其氧化物中非稀土杂质化学分析方法 第4部分:氧、氮量的测定 脉冲-红外吸收法和脉冲-热导法 |
China National Standards tent |
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 tent |
English PDF |
GB/T 40795.2-2021 |
Chemical analysis methods of lanthanum-cerium metals and their compounds—Part 2:Determination of rare earth content 镧铈金属及其化合物化学分析方法 第2部分:稀土量的测定 |
China National Standards tent |
English PDF |
GB/T 40795.1-2021 |
Chemical analysis method of lanthanum-cerium metals and their compounds—Part 1:Determination of cerium content—Ammonium ferrous sulfate titration method 镧铈金属及其化合物化学分析方法 第1部分:铈量的测定 硫酸亚铁铵滴定法 |
China National Standards tent |
English PDF |
GB/T 40716-2021 |
Test method for air retention of motor vehicle tyres 汽车轮胎气密性试验方法 |
China National Standards tent |
English PDF |
GB/T 12690.7-2021 |
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 7: Determination of silicon content 稀土金属及其氧化物中非稀土杂质化学分析方法 第7部分:硅量的测定 |
China National Standards tent |
English PDF |
GB 31893-2015 |
Limit and determination of the water-soluble Chromium(Ⅵ)content for cement + No.1 modification sheet 水泥中水溶性铬(Ⅵ)的限量及测定方法+《第1号修改单》 |
China National Standards tent |
English PDF |
GB/T 39506-2020 |
Determination of the poly vinyl chloride (PVC) content of unplasticized poly vinyl chloride (PVC-U) pipes and fittings—Method based on total chlorine content 硬聚氯乙烯(PVC-U)管材及管件中聚氯乙烯(PVC)含量的测定 基于总氯含量的方法 |
China National Standards tent |
English PDF |
GB/T 39551.2-2020 |
Patent navigation guide—Part 2:Regional planning 专利导航指南 第2部分:区域规划 |
China National Standards tent |
English PDF |
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