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  •  China "pH" GB Standards List:
  • Standard  Code Standard Title Standard Class Order
    GB/Z 6113.205-2013 Specification for radio disturbance and immunity measuring apparatus and methods―Part 2-5: In situ measurements of disturbing emissions produced by pHysically large equipment
    无线电骚扰和抗扰度测量设备和测量方法规范 第2-5部分:大型设备骚扰发射现场测量
    China National Standards
    pH

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    GB/T 30145-2013 Specification for YZP series variable-frequency adjustable-speed three-pHase induction motors for crane and metallurgical applications(Frame size 450 to 500)
    YZP系列起重及冶金用变频调速三相异步电动机技术条件(机座号450~500)
    China National Standards
    pH

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    GB/T 30144-2013 Specification for YZP-H series variable-frequency adjustable-speed three-pHase induction motors for crane in ships
    YZP-H系列船用起重用变频调速三相异步电动机技术条件
    China National Standards
    pH

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    GB/T 30143-2013 Specification for YZR series of wound-rotor three-pHase induction motors for crane and metallurgical applications
    YZR系列起重及冶金用绕线转子三相异步电动机技术条件(机座号450~500)
    China National Standards
    pH

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    GB/T 21972.3-2013 Specification for variable-frequency adjustable-speed three-pHase induction motors for crane and metallurgical applications―Part 3:YZP series variable-frequency adjustable-speed three-phase induction motors (cooled with centrifugal fan)for crane and met
    起重及冶金用变频调速三相异步电动机技术条件 第3部分:YZP系列起重及冶金用变频调速三相异步电动机(离心风机冷却)
    China National Standards
    pH

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    GB/T 29910.1-2013 Industrial communication networks―Fieldbus specifications―Type 20 HART specification―Part 1: HART wired network pHysical layer service definition and protocol specification
    工业通信网络 现场总线规范 类型20:HART规范 第1部分:HART有线网络物理层服务定义和协议规范
    China National Standards
    pH

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    GB/T 30169-2013 GeograpHic information―Web feature service
    地理信息 基于网络的要素服务
    China National Standards
    pH

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    GB/Z 17624.2-2013 Electromagnetic compatibility - General - Methodology for the achievement of functional safety of electrical and electronic systems including equipment with regard to electromagnetic pHenomena
    电磁兼容 综述 与电磁现象相关设备的电气和电子系统实现功能安全的方法
    China National Standards
    pH

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    GB/T 23371.1-2013 Basic principles for grapHical symbols for use on electrical equipment―Part 1: Creation of graphical symbols for registration
    电气设备用图形符号基本规则 第1部分:注册用图形符号的生成
    China National Standards
    pH

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    GB/T 16901.2-2013 Rules for design of grapHical symbols for use in the technical documentation―Part 2: Specification for graphical symbols in a computer sensible form, including graphical symbols for a reference library,and requirements for their interchange
    技术文件用图形符号表示规则 第2部分:图形符号(包括基准符号库中的图形符号)的计算机电子文件格式规范及其交换要求
    China National Standards
    pH

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    GB/T 30171-2013 GeograpHic information-Profiles
    地理信息 专用标准
    China National Standards
    pH

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    GB/T 30170-2013 GeograpHic information―Spatial referencing by coordinates
    地理信息 基于坐标的空间参照
    China National Standards
    pH

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    GB/T 30168-2013 GeograpHic information―Geodetic codes and parameters
    地理信息 大地测量代码与参数
    China National Standards
    pH

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    GB/T 16831-2013 Standard representation of geograpHic point location by coordinates
    基于坐标的地理点位置标准表示法
    China National Standards
    pH

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    GB/T 30088-2013 Determination of methyl eugenol in cosmetics by gas chromatograpHy/mass spectrometry method
    化妆品中甲基丁香酚的测定 气相色谱/质谱法
    China National Standards
    pH

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    GB/T 30087-2013 Determination of pHeylbutazone in cosmetics by high performance liquid chromatography method
    化妆品中保泰松含量的测定方法 高效液相色谱法
    China National Standards
    pH

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    GB/T 50902-2013 Standard for fundamental terms of pHarmaceutical engineering
    医药工程基本术语标准
    China National Standards
    pH

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    GB 4789.31-2013 National Food Safety Standard-Food microbiology - Examination of bacteriopHages of Enterobacteriaceae by Salmonella, Shigella and Escherichia coli
    食品安全国家标准 食品微生物学检验 沙门氏菌、志贺氏菌和致泻大肠埃希氏菌的肠杆菌科噬菌体诊断检验
    China National Standards
    pH

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    GB 29936-2013 National Food Safety Standard Food Additive Identification Sodium starch pHosphate
    食品安全国家标准 食品添加剂 淀粉磷酸酯钠
    China National Standards
    pH

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    GB 29931-2013 National Food Safety Standard Food Additive Identification Hydroxypropyl distarch pHosphate
    食品安全国家标准 食品添加剂 羟丙基二淀粉磷酸酯
    China National Standards
    pH

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    GB 29944-2013 National Food Safety Standard Food Additive Identification N-[N-(3, 3-dimethyl butyl)]-L-α-asparagin-L-pHenylalanine1-methyl ester (neotam)
    食品安全国家标准 食品添加剂 N-[N-(3,3-二甲基丁基)]-L-α-天门冬氨-L-苯丙氨酸1-
    China National Standards
    pH

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    GB 29929-2013 National Food Safety Standard Food Additive Identification Acetylated distarch pHosphate
    食品安全国家标准 食品添加剂 乙酰化二淀粉磷酸酯
    China National Standards
    pH

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    GB 29935-2013 National Food Safety Standard Food Additive Identification pHosphated distarch phosphate
    食品安全国家标准 食品添加剂 磷酸化二淀粉磷酸酯
    China National Standards
    pH

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    GB 29926-2013 National Food Safety Standard Food Additive Identification Distarch pHosphate
    食品安全国家标准 食品添加剂 磷酸酯双淀粉
    China National Standards
    pH

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    GB 29942-2013 National Food Safety Standard Food Additive Identification Vitamin E (dl-α-tocopHerol)
    食品安全国家标准 食品添加剂 维生素E(dl-α-生育酚)
    China National Standards
    pH

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    GB/T 30020-2013 Test method for the defects of glass - pHotoelastic scanning method
    玻璃缺陷检测方法 光弹扫描法
    China National Standards
    pH

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    GB/T 13748.14-2013 Chemical analysis methods of magnesium and magnesium alloys - Part 14:Determination of nickel content - Dimethylglyoxime tropHotometric method
    镁及镁合金化学分析方法 第14部分:镍含量的测定 丁二酮肟分光光度法
    China National Standards
    pH

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    GB/T 11064.9-2013 Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride - Part 9: Determination of sulfate content - Barium sulfate nepHelometry method
    碳酸锂、单水氢氧化锂、氯化锂化学分析方法 第9部分: 硫酸根量的测定 硫酸钡浊度法
    China National Standards
    pH

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    GB/T 11064.8-2013 Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride - Part 8: Determination of silicon content - Molybdenum blue spectropHotometric method
    碳酸锂、单水氢氧化锂、氯化锂化学分析方法 第8部分:硅量的测定 钼蓝分光光度法
    China National Standards
    pH

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    GB/T 11064.7-2013 Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride - Part 7: Determination of iron content-1,10-pHenanthroline spectrophotometric method
    碳酸锂、单水氢氧化锂、氯化锂化学分析方法 第7部分:铁量的测定 邻二氮杂菲分光光度法
    China National Standards
    pH

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    GB/T 11064.13-2013 Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride - Part 13: Determination of aluminum content - Chromazurol S-cetylpyridine bromide spectropHotometric method
    碳酸锂、单水氢氧化锂、氯化锂化学分析方法 第13部分:铝量的测定 铬天青S-溴化十六烷基吡啶分光光度法
    China National Standards
    pH

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    GB/T 11064.10-2013 Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride - Part 10: Determination of chloride content - Silver chloride nepHelometry method
    碳酸锂、单水氢氧化锂、氯化锂化学分析方法 第10部分:氯量的测定 氯化银浊度法
    China National Standards
    pH

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    GB 30035-2013 Criteria of pHysical examination for seafarers
    船员健康检查要求
    China National Standards
    pH

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    GB/T 11135-2013 Standard test method for bromine numbers of petroleum distillates and commercial alipHatic olefins by electrometric titration
    石油馏分及工业脂肪族烯烃溴值的测定 电位滴定法
    China National Standards
    pH

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    GB/T 8897.2-2013 Primary batteries - Part 2: pHysical and electrical specifications
    原电池 第2部分:外形尺寸和电性能要求
    China National Standards
    pH

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    GB/T 4615-2013 Poly(vinyl chloride) - Determination of residual vinyl chloride monomer gas-chromatograpHic method
    聚氯乙烯 残留氯乙烯单体的测定 气相色谱法
    China National Standards
    pH

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    GB/T 29875-2013 Determination of lead,arsenic,mercury in pHosphate rock and concentrate
    磷矿石和磷精矿中铅、砷、汞含量的测定
    China National Standards
    pH

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    GB/T 29874-2013 Plastics - Homopolymer and copolymer resins of vinyl chloride - Determination of residual vinyl chloride monomer by gas-chromatograpHic analysis of dry powder
    塑料 氯乙烯均聚和共聚树脂 气相色谱法对干粉中残留氯乙烯单体的测定
    China National Standards
    pH

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    GB/T 29844-2013 Specifications of metrology patterns for the evaluation of advanced pHotolithgraphy
    用于先进集成电路光刻工艺综合评估的图形规范
    China National Standards
    pH

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    GB/T 29856-2013 Characterization of semiconducting single-walled carbon nanotubes using near infrared pHotoluminescence spectroscopy
    半导体性单壁碳纳米管的近红外光致发光光谱表征方法
    China National Standards
    pH

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    GB/T 29852-2013 Test method for measuring pHosphorus, Arsenic and Antimony in silicon materials used for photovoltaic applications by secondary ion mass spectrometry
    光伏电池用硅材料中P、As、Sb施主杂质含量的二次离子质谱测量方法
    China National Standards
    pH

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    GB/T 29851-2013 Test method for measuring Boron and Aulminium in silicon materials used for pHotovoltaic applications by secondary ion mass spectrometry
    光伏电池用硅材料中B、Al受主杂质含量的二次离子质谱测量方法
    China National Standards
    pH

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    GB/T 29850-2013 Test method for measuring compensation degree of silicon materials used for pHotovoltaic applications
    光伏电池用硅材料补偿度测量方法
    China National Standards
    pH

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    GB/T 29849-2013 Test method for measuring surface metallic contamination of silicon materials used for pHotovoltaic applications by inductively coupled plasma mass spectrometry
    光伏电池用硅材料表面金属杂质含量的电感耦合等离子体质谱测量方法
    China National Standards
    pH

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    GB/T 29846-2013 pHotoimageable plating and etching resist paste of printed circuit board
    印制板用光成像耐电镀抗蚀剂
    China National Standards
    pH

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    GB/T 29889-2013 DNA microarray for disease susceptibility DNA polymorpHisms
    人体疾病易感DNA多态性检测基因芯片
    China National Standards
    pH

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    GB/T 19903.111-2013 Industrial automation systems and integration - pHysical device control - Data model for computerized numerical controllers - Part 111: Tools for milling machines
    工业自动化系统与集成 物理设备控制 计算机数值控制器用的数据模型 第111部分:铣床用刀具
    China National Standards
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    GB/T 2423.19-2013 Environmental testing - Part 2: Test methods - Test Kc: SulpHur dioxide test for contacts and connections
    环境试验 第2部分:试验方法 试验Kc:接触点和连接件的二氧化硫试验
    China National Standards
    pH

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    GB/T 2424.11-2013 Environmental testing - Part 2: Test methods - Guidance to test Kc: SulpHur dioxide test for contacts and connections
    环境试验 第2部分:试验方法 试验Kc:接触点和连接件的二氧化硫试验导则
    China National Standards
    pH

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    GB/T 29829-2013 Information security techniques - Functionality and interface specification of cryptograpHic support platform for trusted computing
    信息安全技术 可信计算密码支撑平台功能与接口规范
    China National Standards
    pH

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    GB 30000.11-2013 Rules for classification and labelling of chemicals - Part 11: PyropHoric solids
    化学品分类和标签规范 第11部分:自燃固体
    China National Standards
    pH

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    GB 30000.10-2013 Rules for classification and labelling of chemicals - Part 10: PyropHoric liquids
    化学品分类和标签规范 第10部分:自燃液体
    China National Standards
    pH

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    GB/T 29778-2013 Textiles - Tests for colour fastness - Assessment of the potential to pHenolic yellowing of materials
    纺织品 色牢度试验 潜在酚黄变的评估
    China National Standards
    pH

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    GB/T 10686-2013 Testing method of copper alloy tools for explosive atmospHeres
    铜合金工具防爆性能试验方法
    China National Standards
    pH

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    GB/T 4835.2-2013 Radiation protection instrumentation - Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation - Part 2: High range beta and pHoton dose and dose rate portable instruments for emergency radiation protection
    辐射防护仪器 β、X和γ辐射周围和/或定向剂量当量(率)仪和/或监测仪 第2部分:应急辐射防护用便携式高量程β和光子剂量与剂量率仪
    China National Standards
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    GB/T 29788-2013 Radiation protection instrumentation - Portable pHoton contamination meters and monitors
    辐射防护仪器 便携式表面污染光子测量仪和监测仪
    China National Standards
    pH

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    GB/T 29787-2013 Radiation protection instrumentation - Mobile instrumentation for the measurement of pHoton and neutron radiation in the environment
    辐射防护仪器 测量环境中光子和中子辐射的移动式仪器
    China National Standards
    pH

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    GB/T 29786-2013 Determination of pHthalates in electrical and electronic equipments - Gas chromatography-mass spectrometry
    电子电气产品中邻苯二甲酸酯的测定 气相色谱-质谱联用法
    China National Standards
    pH

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    GB/T 29785-2013 Determination of hexabromocyclododecane in electrical and electronic products - Gas chromatograpHy-mass spectrometry
    电子电气产品中六溴环十二烷的测定 气相色谱-质谱联用法
    China National Standards
    pH

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    GB/T 29784.4-2013 Determination of polycyclic aromatic hydrocarbons in electrical and electronic products - Part 4:Gas chromatograpHy
    电子电气产品中多环芳烃的测定 第4部分:气相色谱法
    China National Standards
    pH

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    GB/T 29784.3-2013 Determination of polycyclic aromatic hydrocarbons in electrical and electronic products - Part 3: Liquid chromatograpHy-mass spectrometry
    电子电气产品中多环芳烃的测定 第3部分:液相色谱-质谱法
    China National Standards
    pH

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    GB/T 29784.2-2013 Determination of polycyclic aromatic hydrocarbons in electrical and electronic products - Part 2: Gas chromatograpHic method with mass spectrometric detection
    电子电气产品中多环芳烃的测定 第2部分: 气相色谱-质谱法
    China National Standards
    pH

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    GB/T 29784.1-2013 Determination of polycyclic aromatic hydrocarbons in electrical and electronic products - Part 1: High performance liquid chromatograpHy
    电子电气产品中多环芳烃的测定 第1部分:高效液相色谱法
    China National Standards
    pH

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    GB 18409-2013 pHotometric characteristics of parking lamps for power-driven vehicles
    汽车驻车灯配光性能
    China National Standards
    pH

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    GB 18099-2013 pHotometric characteristics of side-marker lamps for motor vehicles and their trailers
    机动车及挂车侧标志灯配光性能
    China National Standards
    pH

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    GB/T 29756-2013 Test methods of pHysical property for dry-mix mortar
    干混砂浆物理性能试验方法
    China National Standards
    pH

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    GB/T 29747-2013 Coal direct liquefaction - Determination of composition for coal direct liquefaction gas - Gas chromatograpHic method
    煤炭直接液化 生成气的组成分析 气相色谱法
    China National Standards
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    GB 29709-2013 National Food Safety Standard-Determination of azepinone and its metabolites in animal foods by high performance liquid chromatograpHy
    食品安全国家标准 动物性食品中氮哌酮及其代谢物残留量的测定 高效液相色谱法
    China National Standards
    pH

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    GB 29695-2013 National Food Safety Standard-Determination of avermectin and ivermectin residues in aquatic products - High performance liquid chromatograpHy
    食品安全国家标准 水产品中阿维菌素和伊维菌素多残留的测定 高效液相色谱法
    China National Standards
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    GB 29708-2013 National Food Safety Standard-Determination of sodium pentachloropHenolate residues in animal foods - Gas chromatographic - mass spectrometric method
    食品安全国家标准 动物性食品中五氯酚钠残留量的测定 气相色谱-质谱法
    China National Standards
    pH

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    GB 29707-2013 National Food Safety Standard-Determination of residual amitraz residues in milk - Gas chromatograpHic method
    食品安全国家标准 牛奶中双甲脒残留标志物残留量的测定 气相色谱法
    China National Standards
    pH

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    GB 29706-2013 National Food Safety Standard-Animal and vegetable products - Determination of dapsone - Residue by liquid chromatograpHy - tandem mass spectrometry
    食品安全国家标准 动物性食品中氨苯砜残留量的测定 液相色谱-串联质谱法
    China National Standards
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    GB 29705-2013 National Food Safety Standard-Determination of cypermethrin, fenvalerate, deltamethrin residues in aquatic products by gas chromatograpHy
    食品安全国家标准 水产品中氯氰菊酯、氰戊菊酯、溴氰菊酯多残留的测定 气相色谱法
    China National Standards
    pH

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    GB 29704-2013 National Food Safety Standard-Determination of cyclamiprazine and metabolites of melamine in animal foods by ultra performance liquid chromatograpHy-tandem mass spectrometry
    食品安全国家标准 动物性食品中环丙氨嗪及代谢物三聚氰胺多残留的测定 超高效液相色谱-串联质谱法
    China National Standards
    pH

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    GB 29703-2013 National Food Safety Standard-Determination of furazolidone residues in animal foods - Liquid chromatograpHy - tandem mass spectrometry
    食品安全国家标准 动物性食品中呋喃苯烯酸钠残留量的测定 液相色谱-串联质谱法
    China National Standards
    pH

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    GB 29702-2013 National Food Safety Standard-Determination of Trimethoprim Residue in Aquatic Products by High Performance Liquid ChromatograpHy
    食品安全国家标准 水产品中甲氧苄啶残留量的测定 高效液相色谱法
    China National Standards
    pH

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    GB 29701-2013 National Food Safety Standard-Determination of diclazuril residue in chicken edible tissue by high performance liquid chromatograpHy
    食品安全国家标准 鸡可食性组织中地克珠利残留量的测定 高效液相色谱法
    China National Standards
    pH

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    GB 29691-2013 National Food Safety Standard-Determination of nicarbazin residues in edible tissues of chickens by high performance liquid chromatograpHy
    食品安全国家标准 鸡可食性组织中尼卡巴嗪残留量的测定 高效液相色谱法
    China National Standards
    pH

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    GB 29700-2013 National Food Safety Standard-Determination of chlorpyrifos residues in milk - Gas chromatograpHic - mass spectrometric method
    食品安全国家标准 牛奶中氯羟吡啶残留量的测定 气相色谱-质谱法
    China National Standards
    pH

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    GB 29698-2013 National Food Safety Standard-Determination of 17β-estradiol, estriol and ethinylestradiol residues in milk and milk products by gas chromatograpHy-mass spectrometry
    食品安全国家标准 奶及奶制品中17β-雌二醇、雌三醇、炔雌醇多残留的测定 气相色谱-质谱法
    China National Standards
    pH

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    GB 29697-2013 National Food Safety Standard-Determination of diazepam and methaqualone residues in animal foods by gas chromatograpHy - mass spectrometry
    食品安全国家标准 动物性食品中地西泮和安眠酮多残留的测定 气相色谱-质谱法
    China National Standards
    pH

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    GB 29689-2013 National Food Safety Standard-Milk - Determination of thiampHenicol residues - High performance liquid chromatography
    食品安全国家标准 牛奶中甲砜霉素残留量的测定 高效液相色谱法
    China National Standards
    pH

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    GB 29688-2013 National Food Safety Standard-Determination of chlorampHenicol residues in milk - Liquid chromatography - tandem mass spectrometry
    食品安全国家标准 牛奶中氯霉素残留量的测定 液相色谱 -串联质谱法
    China National Standards
    pH

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    GB 29687-2013 National Food Safety Standard-Determination of albendazole and its metabolites in aquatic products by high performance liquid chromatograpHy
    食品安全国家标准 水产品中阿苯达唑及其代谢物多残留的测定 高效液相色谱法
    China National Standards
    pH

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    GB 29686-2013 National Food Safety Standard-Determination of Avilamycin Residues in Pig Edible Tissues by Liquid ChromatograpHy - Tandem Mass Spectrometry
    食品安全国家标准 猪可食性组织中阿维拉霉素残留量的测定 液相色谱-串联质谱法
    China National Standards
    pH

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    GB 29685-2013 National Food Safety Standard-Determination of Lincomycin, Clindamycin and Spectinomycin Residues in Animal Foods by Gas ChromatograpHy-Mass Spectrometry
    食品安全国家标准 动物性食品中林可霉素、克林霉素和大观霉素多残留的测定 气相色谱—质谱法
    China National Standards
    pH

    English PDF
    GB 29684-2013 National Food Safety Standard-Determination of erythromycin residues in aquatic products - Liquid chromatograpHy - tandem mass spectrometry
    食品安全国家标准 水产品中红霉素残留量的测定 液相色谱-串联质谱法
    China National Standards
    pH

    English PDF
    GB 29683-2013 National Food Safety Standard-Determination of acetaminopHen residues in animal foods - High performance liquid chromatography
    食品安全国家标准 动物性食品中对乙酰氨基酚残留量的测定 高效液相色谱法
    China National Standards
    pH

    English PDF
    GB 29681-2013 National Food Safety Standard-Determination of Levamisole Residue in Milk by High Performance Liquid ChromatograpHy
    食品安全国家标准 牛奶中左旋咪唑残留量的测定 高效液相色谱法
    China National Standards
    pH

    English PDF
    GB 29692-2013 National Food Safety Standard - Determination of Residual Quinolones in Milk - High Performance Liquid ChromatograpHy
    食品安全国家标准 牛奶中喹诺酮类药物多残留的测定 高效液相色谱法
    China National Standards
    pH

    English PDF
    GB 29690-2013 National Food Safety Standard - Determination of Residual Nicarbazin Marker Quantity in Animal Food - Liquid ChromatograpHy-tandem Mass Spectrometry
    食品安全国家标准 动物性食品中尼卡巴嗪残留标志物残留量的测定 液相色谱-串联质谱法
    China National Standards
    pH

    English PDF
    GB 29682-2013 National Food Safety Standard Determination of Penicillins residues in aquatic products by High Performance Liquid ChromatograpHic method
    食品安全国家标准 水产品中青霉素类药物多残留的测定 高效液相色谱法
    China National Standards
    pH

    English PDF
    GB 29694-2013 National Food Safety Standard - Determination of Residual 13 Types of Sulfonamides in Animal Food - High Performance Liquid ChromatograpHy
    食品安全国家标准 动物性食品中13种磺胺类药物多残留的测定 高效液相色谱法
    China National Standards
    pH

    English PDF
    GB 29693-2013 National Food Safety Standard - Determination of Residual Halofuginone Amount in Animal Food - High Performance Liquid ChromatograpHy
    食品安全国家标准 动物性食品中常山酮残留量的测定 高效液相色谱法
    China National Standards
    pH

    English PDF
    GB 29699-2013 National Food Safety Standard - Determination of Residual Clopidol Quantity in the Muscular Tissue of Chicken - Gas ChromatograpHy/mass Spectrography
    食品安全国家标准 鸡肌肉组织中氯羟吡啶残留量的测定 气相色谱-质谱法
    China National Standards
    pH

    English PDF
    GB 29696-2013 National Food Safety Standard - Determination of Residual Abamectins in Milk - High Performance Liquid ChromatograpHy
    食品安全国家标准 牛奶中阿维菌素类药物多残留的测定 高效液相色谱法
    China National Standards
    pH

    English PDF
    GB 50913-2013 Code for design of pHarmaceutical process water system
    医药工艺用水系统设计规范
    China National Standards
    pH

    English PDF
    GB 50895-2013 Code for installation and quality acceptance of flue gas desulpHurization mechanical equipment engeering
    烟气脱硫机械设备工程安装及验收规范
    China National Standards
    pH

    English PDF
    GB/T 50865-2013 Code for design of pHotovoltaic generation connecting to distribution network
    光伏发电接入配电网设计规范
    China National Standards
    pH

    English PDF
    GB/T 13748.9-2013 Chemical analysis methods of magnesium and magnesium alloys - Part 9:Determination of iron content - Orthopenanthroline spectropHotometric method
    镁及镁合金化学分析方法 第9部分:铁含量测定 邻二氮杂菲分光光度法
    China National Standards
    pH

    English PDF

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