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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 21177-2007 |
Safety code for inspecTiOn of hazardous properties for dangerous goods of paint 涂料危险货物危险特性检验安全规范 |
China National Standards TiO |
 English PDF |
| GB 21176-2007 |
Safety code for inspecTiOn of hazardous properties for dangerous goods of liquefied peroleum gas 液化石油气危险货物危险特性检验安全规范 |
China National Standards TiO |
English PDF |
| GB 21175-2007 |
Procedure of classificaTiOn for hazardous products 危险货物分类定级基本程序 |
China National Standards TiO |
English PDF |
| GB/Z 21193.3-2007 |
Fossil-fired steam power staTiOns - Part 3: Steam-temperature controls 矿物燃烧蒸汽发电站 第3部分：蒸汽温度控制 |
China National Standards TiO |
English PDF |
| GB/Z 21193.1-2007 |
Fossil-fired steam power staTiOns - Part 1: Limiting controls 矿物燃烧蒸汽发电站 第1部分: 限幅控制 |
China National Standards TiO |
English PDF |
| GB/T 778.2-2007 |
Measurement of water flow in fully charged closed conduits - Meters for cold potable water and hot water - Part 2: InstallaTiOn requirements 封闭满管道中水流量的测量 饮用冷水水表和热水水表 第2部分：安装要求 |
China National Standards TiO |
English PDF |
| GB/T 778.1-2007 |
Measurement of water flow in fully charged closed conduits - Meters for cold potable water and hot water - Part 1: SpecificaTiOns 封闭满管道中水流量的测量 饮用冷水水表和热水水表 第1部分：规范 |
China National Standards TiO |
English PDF |
| GB/T 4854.8-2007 |
Acoustics - Reference zero for the calibraTiOn of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tone and circumaural earphones 声学 校准测听设备的基准零级 第8部分：耳罩式耳机纯音基准等效阈声压级 |
China National Standards TiO |
English PDF |
| GB/T 3386.2-2007 |
Electrical and pneumatic analogue chart recorders for use in industrial-process control systems - Part 2: Guidance for inspecTiOn and routine testing 工业过程控制系统用电动和气动模拟图纸记录仪 第2部分：检查和例行试验导则 |
China National Standards TiO |
English PDF |
| GB/T 3386.1-2007 |
Electrical and pneumatic analogue chart recorders for use in industrial-process control systems - Part 1: Methods for performance evaluaTiOn 工业过程控制系统用电动和气动模拟图纸记录仪 第1部分：性能评定方法 |
China National Standards TiO |
English PDF |
| GB/T 21229-2007 |
Acoustics - DeterminaTiOn of sound power levels of noise from air-terminal devices,air-terminal units,dampers and valves by measurement in a reverberation room 声学 风道末端装置、末端单元、风道闸门和阀噪声声功率级的混响室测定 |
China National Standards TiO |
English PDF |
| GB/T 21228.1-2007 |
Acoustics - Sound-scattering properties of surfaces - Part 1: Measurement of the random-incidence scattering coefficient in a reverberaTiOn room 声学 表面声散射特性 第1部分：混响室中无规入射声散射系数测量 |
China National Standards TiO |
English PDF |
| GB/T 21195-2007 |
The specificaTiOns of antenna for mobile communication indoor distributed system 移动通信室内信号分布系统 天线技术条件 |
China National Standards TiO |
English PDF |
| GB/T 21194-2007 |
Generic reliability assurance requirements for optoelectronic devices used in telecommunicaTiOns equipment 通信设备用的光电子器件的可靠性通用要求 |
China National Standards TiO |
English PDF |
| GB/T 21190-2007 |
Paper, board and corrugated fibreboard - DescripTiOn and calibration of compression-testing equipment 纸、纸板和瓦楞纸板 压力试验仪的描述与校准 |
China National Standards TiO |
English PDF |
| GB/T 21189-2007 |
VerificaTiOn of pendulum impact-testing machines used for Charpy, lzod and tensile impact-testing of plastics 塑料简支梁、悬臂梁和拉伸冲击试验用摆锤冲击试验机的检验 |
China National Standards TiO |
English PDF |
| GB/T 21187-2007 |
Atomic absorpTiOn spectrophotometer 原子吸收分光光度计 |
China National Standards TiO |
English PDF |
| GB/T 17248.6-2007 |
Acoustics - Noise emitted by machinery and equipment - Engineering method for the determinaTiOn of emission sound pressure levels in situ at the work station and at other specified positions using sound intensity 声学 机器和设备发射的噪声 声强法现场测定工作位置和其它指定位置发射声压级的工程法 |
China National Standards TiO |
English PDF |
| GB/T 12364-2007 |
Networking technical requirement for the Domestic(GSO/FSS) satellite communicaTiOn system 国内卫星通信系统进网技术要求 |
China National Standards TiO |
English PDF |
| GB/T 21203-2007 |
InformaTiOn technology - Office equipment - Method for measuring copying machine productivity 信息技术 办公设备 复印机有效复印速率的测量方法 |
China National Standards TiO |
English PDF |
| GB/T 21202-2007 |
Digital multi-funcTiOn monochrome copier(printer) device 数字式多功能黑白静电复印（打印）设备 |
China National Standards TiO |
English PDF |
| GB/T 21185-2007 |
InformaTiOn technology - Office machines - Method of specifying image reproduction of colour copying machines by analog test charts - Realisation and application 信息技术 办公设备 用模拟测试版评价彩色复印机图像印品性能的方法 制作和应用 |
China National Standards TiO |
English PDF |
| GB/T 15566.8-2007 |
Guidance system for public informaTiOn - Setting principles and requirements - Part 8: Hotel 公共信息导向系统 设置原则与要求 第8部分：宾馆和饭店 |
China National Standards TiO |
English PDF |
| GB/T 15566.7-2007 |
Guidance system for public informaTiOn - Setting principles and requirements - Part 7: Sports place 公共信息导向系统 设置原则与要求 第7部分: 运动场所 |
China National Standards TiO |
English PDF |
| GB/T 15566.6-2007 |
Guidance system for public informaTiOn - Setting principles and requirements - Part 6: Medical site 公共信息导向系统 设置原则与要求 第6部分: 医疗场所 |
China National Standards TiO |
English PDF |
| GB/T 15566.5-2007 |
Guidance system for public informaTiOn - Setting principles and requirements - Part 5: Shopping marketplace 公共信息导向系统 设置原则与要求 第5部分：购物场所 |
China National Standards TiO |
English PDF |
| GB/T 15566.4-2007 |
Guidance system for public informaTiOn - Setting principles and requirements - Part 4: Public transport station 公共信息导向系统 设置原则与要求 第4部分: 公共交通车站 |
China National Standards TiO |
English PDF |
| GB/T 15566.3-2007 |
Guidance system for public informaTiOn - Setting principles and requirements - Part 3: Railway passenger station 公共信息导向系统 设置原则与要求 第3部分：铁路旅客车站 |
China National Standards TiO |
English PDF |
| GB/T 15566.2-2007 |
Guidance system for public informaTiOn - Setting principles and requirements - Part 2: Civil airport 公共信息导向系统 设置原则与要求 第2部分：民用机场 |
China National Standards TiO |
English PDF |
| GB/T 15566.1-2007 |
Guidance system for public informaTiOn - Setting principles and requirements - Part 1: General principles 公共信息导向系统 设置原则与要求 第1部分：总则 |
China National Standards TiO |
English PDF |
| GB/T 21198.6-2007 |
DeterminaTiOn of precious metals in precious metals jewellery alloys - Method using ICP spectrometry - Part 6：Difference method 贵金属合金首饰中贵金属含量的测定 ICP光谱法 第6部分：差减法 |
China National Standards TiO |
English PDF |
| GB/T 21198.5-2007 |
DeterminaTiOn of precious metals in precious metals jewellery alloys - Method using ICP spectrometry - Part 5：999‰ silver jewellery alloys - Determination of silver - Difference method 贵金属合金首饰中贵金属含量的测定 ICP光谱法 第5部分：999‰银合金首饰 银含量的测定 差减法 |
China National Standards TiO |
English PDF |
| GB/T 21198.4-2007 |
DeterminaTiOn of precious metals in precious metals jewellery alloys - Method using ICP spectrometry - Part 4：999‰ precious metals jewellery alloys - Determination of precious metals - Difference method 贵金属合金首饰中贵金属含量的测定 ICP光谱法 第4部分：999‰贵金属合金首饰 贵金属含量的测定 差减法 |
China National Standards TiO |
English PDF |
| GB/T 21198.3-2007 |
DeterminaTiOn of precious metals in precious metals jewellery alloys - Method using ICP spectrometry - Part 3：Palladium jewellery alloys - Determination of palladium - Method using a solution with yttrium as internal standard element 贵金属合金首饰中贵金属含量的测定 ICP光谱法 第3部分：钯合金首饰 钯含量的测定 采用钇为内标 |
China National Standards TiO |
English PDF |
| GB/T 21198.2-2007 |
DeterminaTiOn of precious metals in precious metals jewellery alloys - Method using ICP spectrometry - Part 2：Platinum jewellery alloys - Determination of platinum - Method using the intensity ratios of all minor constituents with reference to platinum 贵金属合金首饰中贵金属含量的测定 ICP光谱法 第2部分：铂合金首饰 铂含量的测定 采用所有微量元素与铂强度比值法 |
China National Standards TiO |
English PDF |
| GB/T 21198.1-2007 |
DeterminaTiOn of precious metals in precious metals jewellery alloys -Method using ICP spectrometry - Part 1：Platinum jewellery alloys - Determination of platinum - Method using a solution with yttrium as internal standard element 贵金属合金首饰中贵金属含量的测定 ICP光谱法 第1部分：铂合金首饰 铂含量的测定 采用钇为内标 |
China National Standards TiO |
English PDF |
| GB/T 21196.4-2007 |
Textiles - DeterminaTiOn of the abrasion resistance of fabrics by the Martindale method - Part 4: Assessment of appearance change 纺织品 马丁代尔法织物耐磨性的测定 第4部分：外观变化的评定 |
China National Standards TiO |
English PDF |
| GB/T 21196.3-2007 |
Textiles - DeterminaTiOn of the abrasion resistance of fabrics by the Martindale method - Part 3: Determination of mass loss 纺织品 马丁代尔法织物耐磨性的测定 第3部分：质量损失的测定 |
China National Standards TiO |
English PDF |
| GB/T 21196.2-2007 |
Textiles - DeterminaTiOn of the abrasion resistance of fabrics by the Martindale method - Part 2: Determination of specimen breakdown 纺织品 马丁代尔法织物耐磨性的测定 第2部分：试样破损的测定 |
China National Standards TiO |
English PDF |
| GB/T 21196.1-2007 |
Textiles - DeterminaTiOn of the abrasion resistance of fabrics by the Martindale method - Part 1: Martindale abrasion testing apparatus 纺织品 马丁代尔法织物耐磨性的测定 第1部分:马丁代尔耐磨试验仪 |
China National Standards TiO |
English PDF |
| GB/T 21142-2007 |
Product of geographical indicaTiOn - Taixing Ginkgo Nut 地理标志产品 泰兴白果 |
China National Standards TiO |
English PDF |
| GB/T 19882.31-2007 |
Automatic meter reading system - Part 3-1: ApplicaTiOn layer data exchange protocols - Object identification system 自动抄表系统 第3-1部分：应用层数据交换协议 对象标识系统 |
China National Standards TiO |
English PDF |
| GB/T 17954-2007 |
Economical operaTiOn of industrial boilers 工业锅炉经济运行 |
China National Standards TiO |
English PDF |
| GB/T 9130-2007 |
SpecificaTiOn of ring joint gaskets for pipe flange 钢制管法兰用金属环垫 技术条件 |
China National Standards TiO |
English PDF |
| GB/T 21145-2007 |
Mechanical transport refrigeraTiOn units 运输用制冷机组 |
China National Standards TiO |
English PDF |
| GB/T 18430.1-2007 |
Water chilling (heat pump) packages using the vapor compression cycle - Part 1：Water chilling (heat pump) packages for industrial & commercial and similar applicaTiOn 蒸气压缩循环冷水(热泵)机组 第1部分:工业或商业用及类似用途的冷水(热泵)机组 |
China National Standards TiO |
English PDF |
| GB 19762-2007 |
The minimum allowable values of energy efficiency and evaluating values of energy conservaTiOn of centrifugal pump for fresh water 清水离心泵能效限定值及节能评价值 |
China National Standards TiO |
English PDF |
| GB/T 8208-2007 |
DeterminaTiOn of gallium in coal 煤中镓的测定方法 |
China National Standards TiO |
English PDF |
| GB/T 8207-2007 |
DeterminaTiOn of germanium in coal 煤中锗的测定方法 |
China National Standards TiO |
English PDF |
| GB/T 5766-2007 |
Test method of Rockwell hardness for fricTiOn materials 摩擦材料洛氏硬度试验方法 |
China National Standards TiO |
English PDF |
| GB/T 214-2007 |
DeterminaTiOn of total sulfur in coal 煤中全硫的测定方法 |
China National Standards TiO |
English PDF |
| GB/T 211-2007 |
DeterminaTiOn of total moisture in coal 煤中全水分的测定方法 |
China National Standards TiO |
English PDF |
| GB/T 16658-2007 |
DeterminaTiOn of chromium cadium and lead in coal 煤中铬、镉、铅的测定方法 |
China National Standards TiO |
English PDF |
| GB/T 16416-2007 |
Method of extracTiOn for the determination of sodium and potassium in brown coal soluble in dilute hydrochloric acid 褐煤中溶于稀盐酸的钠和钾测定用的萃取方法 |
China National Standards TiO |
English PDF |
| GB 4785-2007 |
PrescripTiOn for installation of the external lighting and light-signalling devices for motor vehicles and their trailers 汽车及挂车外部照明和光信号装置的安装规定 |
China National Standards TiO |
English PDF |
| GB 21146-2007 |
Personal protective equipment - OccupaTiOnal footwear 个体防护装备 职业鞋 |
China National Standards TiO |
English PDF |
| GB/T 21246-2007 |
Measurement method for cathodic protecTiOn parameters of buried steel pipelines 埋地钢质管道阴极保护参数测量方法 |
China National Standards TiO |
English PDF |
| GB/T 8419-2007 |
Earth-moving machinery - Laboratory evaluaTiOn of operator seat vibration 土方机械 司机座椅振动的试验室评价 |
China National Standards TiO |
English PDF |
| GB/T 21163.2-2007 |
Agricultural grain driers - DeterminaTiOn of drying performance - Part 2: Additional procedures and crop - specific requirements 农业谷物干燥机 干燥性能的测定 第2部分:附加测定规程和特定谷物要求 |
China National Standards TiO |
English PDF |
| GB/T 21163.1-2007 |
Agricultural grain driers - DeterminaTiOn of drying performance - Part 1: General 农业谷物干燥机 干燥性能的测定 第1部分:总则 |
China National Standards TiO |
English PDF |
| GB/T 21162-2007 |
Conversion rule for specific heat consumpTiOn and throughput of concurrent - Flow grain dryer 顺流粮食干燥机单位耗热量与处理量折算规则 |
China National Standards TiO |
English PDF |
| GB/T 21160-2007 |
Agricultural trailers - Balanced and semi-mounted trailers - DeterminaTiOn of payload, vertical static load and axle load 农用挂车 全挂车和半挂车有效载荷、垂直静态载荷和轴载荷的测定 |
China National Standards TiO |
English PDF |
| GB/T 21156.2-2007 |
Special environmental condiTiOn - Machinery for desert - Part 2: Construction machinery on dry heat-desert condition 特殊环境条件 沙漠机械 第2部分：干热沙漠工程机械 |
China National Standards TiO |
English PDF |
| GB/T 21156.1-2007 |
Special environmental condiTiOn - Machinery for desert - Part 1: Internal combustion engines on dry heat-desert condition 特殊环境条件 沙漠机械 第1部分：干热沙漠内燃动力机械 |
China National Standards TiO |
English PDF |
| GB/T 21151-2007 |
Technical specificaTiOn of main axial fan-mine 煤矿用轴流主通风机 技术条件 |
China National Standards TiO |
English PDF |
| GB/T 21150-2007 |
stall regulaTiOn wind turbine generator system 失速型风力发电机组 |
China National Standards TiO |
English PDF |
| GB/T 10416-2007 |
Agricultural machinery - Endless variable - speed V-belts and groove secTiOns of corresponding pulleys 农业机械 环形变速V带及带轮轮槽截面 |
China National Standards TiO |
English PDF |
| GB/T 10415-2007 |
Agricultural machinery - Endless hexagonal belts and groove secTiOns of corresponding pulleys 农业机械 环形六角带及带轮轮槽截面 |
China National Standards TiO |
English PDF |
| GB 21240-2007 |
Safety rules for the construcTiOn and installation of hydraulic lifts 液压电梯制造与安装安全规范 |
China National Standards TiO |
English PDF |
| GB/T 21330-2007 |
Method for the determinaTiOn of Streptomycin residues in Aminal Original food - Enzyme-linked Immunosorbent assay 动物源性食品中链霉素残留量测定方法 - 酶联免疫法 |
China National Standards TiO |
English PDF |
| GB/T 21329-2007 |
Method for the determinaTiOn of Gentamicin residues in Animal Original food - Enzyme-linked immunosorbent assay 动物源性食品中庆大霉素残留量检验方法 酶联免疫法 |
China National Standards TiO |
English PDF |
| GB/T 21169-2007 |
DeterminaTiOn of amitraz and metabolite residues in honey - liquid chromatography 蜂蜜中双甲脒及其代谢物残留量测定-液相色谱法 |
China National Standards TiO |
English PDF |
| GB/T 21168-2007 |
DeterminaTiOn of tylosin residues in honey - LC-MS/MS method 蜂蜜中泰乐菌素残留量的测定 液相色谱-串联质谱法 |
China National Standards TiO |
English PDF |
| GB/T 21167-2007 |
DeterminaTiOn of nitrofuran metabolites residues in royal jelly - LC-MS-MS method 蜂王浆中硝基呋喃类代谢物残留量的测定 液相色谱-串联质谱法 |
China National Standards TiO |
English PDF |
| GB/T 21166-2007 |
DeterminaTiOn of nitrofuran metabolites residues in casing - LC-MS-MS method 肠衣中硝基呋喃类代谢物残留量的测定 液相色谱-串联质谱法 |
China National Standards TiO |
English PDF |
| GB/T 21165-2007 |
DeterminaTiOn of chloramphenicol residues in casing - LC-MS/MS method 肠衣中氯霉素残留量的测定 液相色谱-串联质谱法 |
China National Standards TiO |
English PDF |
| GB/T 21164-2007 |
DeterminaTiOn of streptomycin、dihydrostreptomycin residues in royal jelly --- liquid chromatography method 蜂王浆中链霉素、双氢链霉素残留量测定 液相色谱法 |
China National Standards TiO |
English PDF |
| GB/T 22004-2007 |
Food safety management systems - Guidance on the applicaTiOn of GB/T 22000-2006 食品安全管理体系 GB/T 22000-2006的应用指南 |
China National Standards TiO |
English PDF |
| GB/T 5009.206-2007 |
DeterminaTiOn of tetrodotoxin in fresh pufferfish 鲜河豚鱼中河豚毒素的测定 |
China National Standards TiO |
English PDF |
| GB/T 21324-2007 |
Method for the determinaTiOn of benzimidazoles residues in edible animal muscle and liver 食用动物肌肉和肝脏中苯并咪唑类药物残留量检测方法 |
China National Standards TiO |
English PDF |
| GB/T 21323-2007 |
DeterminaTiOn of aminoglycosides residues in animal tissues - HPLC-MS/MS method 动物组织中氨基糖苷类药物残留量的测定 高效液相色谱-质谱/质谱法 |
China National Standards TiO |
English PDF |
| GB/T 21322-2007 |
DeterminaTiOn of 3-methyl-quinoxaline-2-carboxylic acid residues in animal origin food - High performance liquid chromatography method 动物源食品中3-甲基喹喔啉-2-羧酸残留的测定 高效液相色谱法 |
China National Standards TiO |
English PDF |
| GB/T 21321-2007 |
Method for determinaTiOn of avermectins residue in animal origin food - Immunoaffinity -high performance liquid chromatograph 动物源食品中阿维菌素类药物残留量的测定 免疫亲和-液相色谱法 |
China National Standards TiO |
English PDF |
| GB/T 21320-2007 |
Method for determinaTiOn of avermectins residues in animal origin food - LC-MS-MS 动物源食品中阿维菌素类药物残留量的测定 液相色谱-串联质谱法 |
China National Standards TiO |
English PDF |
| GB/T 21319-2007 |
Method for the determinaTiOn of avermectins residues in food of animal origin food - Enzyme linked immunosorbent assay 动物源食品中阿维菌素类药物残留的测定 酶联免疫吸附法 |
China National Standards TiO |
English PDF |
| GB/T 21318-2007 |
DeterminaTiOn of nitroimidazoles residues in foodstuffs of animal origin 动物源性食品中硝基咪唑残留量检验方法 |
China National Standards TiO |
English PDF |
| GB/T 21317-2007 |
DeterminaTiOn of tetracyclines residues in food of animal origin - LC-MS/MS method and HPLC method 动物源性食品中四环素类兽药残留量检测方法 液相色谱-质谱/质谱法与高效液相色谱法 |
China National Standards TiO |
English PDF |
| GB/T 21316-2007 |
DeterminaTiOn of residues of sulfonamides in foodstuffs of animal origin - LC-MS/MS 动物源性食品中磺胺类药物残留量的测定 高效液相色谱-质谱/质谱法 |
China National Standards TiO |
English PDF |
| GB/T 21315-2007 |
DeterminaTiOn of penicillins residues in foodstuffs animal origin - LC-MS/MS method 动物源性食品中青霉素族抗生素残留量检测方法 液相色谱-质谱/质谱法 |
China National Standards TiO |
English PDF |
| GB/T 21314-2007 |
DeterminaTiOn of cephapirin and ceftiofur residues in foodstuffs animal origin - LC-MS/MS method 动物源性食品中头孢匹林、头孢噻呋残留量检测方法 - 液相色谱-质谱/质谱法 |
China National Standards TiO |
English PDF |
| GB/T 21311-2007 |
DeterminaTiOn of residues of nitrofuran metabolites in foodstuffs of animal origin HPLC-MS/MS method 动物源性食品中硝基呋喃类药物代谢物残留量检测方法 高效液相色谱/串联质谱法 |
China National Standards TiO |
English PDF |
| GB/T 21310-2007 |
DeterminaTiOn of residues of thyreostats in foodstuffs of animal origin - HPLC-MS/MS method 动物源性食品中甲状腺拮抗剂残留量检测方法 高效液相色谱/串联质谱法 |
China National Standards TiO |
English PDF |
| GB/T 21234-2007 |
DeterminaTiOn of NaFeEDTA in Iron Fortified Soy Sauce 铁强化酱油中乙二胺四乙酸铁钠的测定 |
China National Standards TiO |
English PDF |
| GB/T 21174-2007 |
DeterminaTiOn of β-Lactams residues in animal derived food - Radio-receptor assay method 动物源性食品中β-内酰胺类药物残留测定方法 放射受体分析法 |
China National Standards TiO |
English PDF |
| GB/T 21173-2007 |
DeterminaTiOn of sulfa drugs residues in animal derived food - Radio-receptor assay method 动物源性食品中磺胺类药物残留测定方法 放射受体分析法 |
China National Standards TiO |
English PDF |
| GB/T 9731-2007 |
Chemical reagent - General method for the determinaTiOn of sulphur compounds 化学试剂 硫化合物测定通用方法 |
China National Standards TiO |
English PDF |
| GB/T 9728-2007 |
Chemical reagent - General method for the determinaTiOn of sulphate 化学试剂 硫酸盐测定通用方法 |
China National Standards TiO |
English PDF |
| GB/T 7322-2007 |
Refractory products - DeterminaTiOn of pyrometric cone equivalent (refractoriness) 耐火材料 耐火度试验方法 |
China National Standards TiO |
English PDF |
| GB/T 631-2007 |
Chemical reagent - Ammonia soluTiOn 化学试剂 氨水 |
China National Standards TiO |
English PDF |
| GB/T 4699.3-2007 |
Ferrochromium, silicochromium and nitrogen-bearing ferrochromium -DeterminaTiOn of phosphorus content - Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method 铬铁、硅铬合金和氮化铬铁 磷含量的测定 铋磷钼蓝分光光度法和钼蓝分光光度法 |
China National Standards TiO |
English PDF |
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