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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.
  •  China "IT" GB Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 7489-1987 Water qualITy--Determination of dissolved oxygen--Iodometric method
    水质 溶解氧的测定 碘量法    		 China National Standards
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    GB/T 7488-1987 Water qualITy--Determination of biochemical oxygen demand after 5 days(BOD5)--Dilution and seeding method
    水质 五日生化需氧量(BOD5)的测定 稀释与接种法    		 China National Standards
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    GB/T 7487-1987 Water qualITy--Determinationof cyanide--Part 2:Determination of cyanide
    水质 氰化物的测定 第二部分:氰化物的测定    		 China National Standards
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    GB/T 7486-1987 Water qualITy--Determination of cyanide--Part 1:Determination of total cyanide
    水质 氰化物的测定 第一部分:总氰化物的测定    		 China National Standards
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    GB/T 7485-1987 Water qualITy--Determination of total arsenic--Silver diethyldithiocarbamate spectrophotometricmethod
    水质 总砷的测定 二乙基二硫代氨基甲酸银分光光度法    		 China National Standards
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    GB/T 7484-1987 Water qualITy--Determination of fluoride--Ion selective electrode method
    水质 氟化物的测定 离子选择电极法    		 China National Standards
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    GB/T 7483-1987 Water qualITy--Determination of fluoride--Fluor reagent spectrophotometric
    水质 氟化物的测定 氟试剂分光光度法    		 China National Standards
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    GB/T 7482-1987 Water qualITy--Determination of fluoride--Visual colorimetry with zirconium alizarinsulfonate
    水质 氟化物的测定 茜素磺酸锆目视比色法    		 China National Standards
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    GB/T 7481-1987 Water qualITy--Determination of ammonium--Spectrophotometric method with salicylic acid
    水质 铵的测定 水杨酸分光光度法    		 China National Standards
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    GB/T 7480-1987 Water qualITy--Determination of nitrate--Spectrophotometric method with phenol disulfonic acid
    水质 硝酸盐氮的测定 酚二磺酸分光光度法    		 China National Standards
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    GB/T 7479-1987 Water qualITy--Determination of ammonium--Nessler’s reagent colorimetric method
    水质 铵的测定 纳氏试剂比色法    		 China National Standards
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    GB/T 7478-1987 Water qualITy--Determination of ammonium--Distillation and titration method
    水质 铵的测定 蒸馏和滴定法    		 China National Standards
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    GB/T 7477-1987 Water qualITy--Determination of thesum of calcium and magnesium--EDTA titrimetric method
    水质 钙和镁总量的测定 EDTA滴定法    		 China National Standards
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    GB/T 7476-1987 Water qualITy--Determination of calcium--EDTA titrimetric method
    水质 钙的测定 EDTA滴定法    		 China National Standards
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    GB/T 7475-1987 Water qualITy--Determination of copper， zinc， lead and cadmium--Atomic absorption spectrometry
    水质 铜、锌、铅、镉的测定 原子吸收分光光谱法    		 China National Standards
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    GB/T 7474-1987 Water qualITy--Determination of copper--Sodium diethyldithiocabamate spectrophotometric method
    水质 铜的测定 二乙基二硫代氨基甲酸钠分光光度法    		 China National Standards
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    GB/T 7473-1987 Water qualITy--Determination of copper--2，9-dimethy-1，10-phenanthroline spectrophotometric method
    水质 铜的测定 2，9-二甲基-1，10-菲啰啉分光光度法    		 China National Standards
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    GB/T 7472-1987 Water qualITy--Determination of zinc--Spectrophotometric method with dithizone
    水质 锌的测定 双硫腙分光光度法    		 China National Standards
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    GB/T 7471-1987 Water qualITy--Determination of cadmium--Spectrophotometric method with dithizone
    水质 镉的测定 双硫腙分光光度法    		 China National Standards
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    GB/T 7470-1987 Water qualITy--Determination of lead--Spectrophotometric method with dithizone
    水质 铅的测定 双硫腙分光光度法    		 China National Standards
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    GB/T 7469-1987 Water qualITy--Determination of the total mercury--Potassium permanganate-pootassium peralfate descomposed method--Dithizone spectrophotometric method
    水质 总汞的测定 高锰酸钾-过硫酸钾消解法 双硫腙分光光度法    		 China National Standards
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    GB/T 7468-1987 Water qualITy--Determination oftotal mercury--Cold atomic absorption spectrophometry
    水质 总汞的测定 冷原子吸收分光光度法    		 China National Standards
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    GB/T 7467-1987 Water qualITy--Determination of chromium(Ⅵ)--1，5 Diphenylcarbohydrazide spectrophotometric method
    水质 六价铬的测定 二苯碳酰二肼分光光度法    		 China National Standards
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    GB/T 7466-1987 Water qualITy--Determination of total chromium
    水质 总铬的测定    		 China National Standards
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    GB/T 7340-1987 Fixed resistors for use in electronic equipment--Part 6:Blank detail specification--Fixed resistor networks wITh individually measurable resistor of either different resistance values or different rated dissipations--Assessment level E
    电子设备用固定电阻器 第六部分:空白详细规范 阻值和功耗不同， 各电阻器可单独测量的固定电阻网络 评定水平 E (可供认证用)    		 China National Standards
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    GB/T 7339-1987 Fixed resistors for use in electronic equipment--Part 6:Blank detail specification--Fixed resistor networks wITh individually measurable resistors， all of equal value and equal dissipation--Assessment level E
    电子设备用固定电阻器 第六部分:空白详细规范 阻值和功耗相同， 各电阻器可单独测量的固定电阻网络 评定水平 E (可供认证用)    		 China National Standards
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    GB/T 7313-1987 Minimum performance requirements and methods of measurement for high fidelITy loudspeaker systems
    高保真扬声器系统最低性能要求及测量方法    		 China National Standards
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    GB/T 7288.2-1987 Equipment reliabilITy testing--Preferred test conditions--Equipment for stationary use in weather protected locations--High degree of simulation
    设备可靠性试验 推荐的试验条件 固定使用在有气候防护场所设备 精模拟    		 China National Standards
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    GB/T 7288.1-1987 Equipment reliabilITy testing--Preferred test conditions indoor portable equipment--Low degree ofsimulation
    设备可靠性试验 推荐的试验条件 室内便携设备 粗模拟    		 China National Standards
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    GB/T 7289-1987 Presentation of reliabilITy，maintainability and availability predictions
    可靠性、维修性与有效性预计报告编写指南    		 China National Standards
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    GB/T 7276-1987 Hinges general technical condITion
    合页通用技术条件    		 China National Standards
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    GB 7355-1987 SanITary standard for lead and it’s inorganic compounds in the atmosphere
    大气中铅及其无机化合物的卫生标准    		 China National Standards
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    GB/T 7265.2-1987 Test method for the complex permITtivity of solid dielectric materials at microwave frequencies--Open cavity method
    固体电介质微波复介电常数的测试方法 开式腔法    		 China National Standards
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    GB/T 7265.1-1987 Test method for complex permITtivity of solid dielectric materials at microwave frequencies--Perturbation method
    固体电介质微波复介电常数的测试方法 微扰法    		 China National Standards
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    GB 7105-1986 SanITary specifications of perchloravinyl interior coatings for food container
    食品容器过氯乙烯内壁涂料卫生标准    		 China National Standards
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    GB/T 7017-1986 Method of measurement of non-linearITy in resistors
    电阻器非线性测量方法    		 China National Standards
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    GB/T 5080.7-1986 Equipment reliabilITy testing--Compliance test plans for failure rate and mean time between failures assuming constant failure rate
    设备可靠性试验 恒定失效率假设下的失效率与平均无故障时间的验证试验方案    		 China National Standards
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    GB 6989-1986 Diagnostic crITeria and principle of treatment for chronic methyl-mercury poisoning caused by water pollution
    水体污染慢性甲基汞中毒诊断标准及处理原则    		 China National Standards
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    GB/T 6920-1986 Water qualITy--Determination of pH value--Glass electrode method
    水质 pH值的测定 玻璃电极法    		 China National Standards
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    GB/T 6919-1986 Air qualITy--Vocabulary
    空气质量 词汇    		 China National Standards
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    GB/T 6816-1986 Water qualITy--Vocabulary--Part 1 and part 2
    水质 词汇 第一部分和第二部分    		 China National Standards
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    GB/T 6768-1986 Methods of analysing microquantITy of uranium in water
    水中微量铀分析方法    		 China National Standards
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    GB/T 6764-1986 Radiochemical analysis of strontium-90 in water--PrecipITation by fuming nitric acid
    水中锶-90放射化学分析方法 发烟硝酸沉淀法    		 China National Standards
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    GB 6830-1986 The tolerable limITs of danger ontelecommunication lines from power lines
    电信线路遭受强电线路危险影响的容许值    		 China National Standards
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    GB/T 6808-1986 Anodizing of aluminium and ITs alloys--Accelerated test of light fastness of coloured anodic oxide coatings using artificial light
    铝及铝合金阳极氧化着色阳极氧化膜耐晒度的人造光加速试验    		 China National Standards
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    GB/T 6753.3-1986 Methods of test for package stabilITy of paints
    涂料贮存稳定性试验方法    		 China National Standards
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    GB/T 5211.13-1986 Determination of acidITy or alkalinity of theaqueous extract of pigments
    颜料水萃取液酸碱度的测定    		 China National Standards
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    GB/T 6733-1986 CapacITor vaseline
    电容器凡士林    		 China National Standards
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    GB/T 6730.48-1986 Methods for chemical analysis of iron ores--The dIThio diantipyryl methane photometric method for the determination of bismuth content
    铁矿石化学分析方法 二硫代二安替吡啉甲烷光度法测定铋量    		 China National Standards
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    GB/T 6648-1986 Blank detail specification for semiconductor inte-grated circuIT static read/write memories
    半导体集成电路静态读/ 写存储器空白详细规范(可供认证用)    		 China National Standards
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    GB/T 5271.10-1986 Data processing--Vocabulary--Section 10:Operating techniques and facilITies
    数据处理词汇 10部分 操作技术和设施    		 China National Standards
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    GB/T 892-1986 Lock rings at the end of shaft wITh bolt
    螺栓紧固轴端挡圈    		 China National Standards
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    GB/T 891-1986 Lock rings at the end of shaft wITh screw
    螺钉紧固轴端挡圈    		 China National Standards
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    GB/T 885-1986 Lock rings wITh screw and circlip
    带锁圈的螺钉锁紧挡圈    		 China National Standards
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    GB/T 884-1986 Lock ring wITh screw
    螺钉锁紧挡圈    		 China National Standards
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    GB/T 883-1986 Lock rings wITh cone pin
    锥销锁紧挡圈    		 China National Standards
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    GB/T 877-1986 Taper pins wITh split
    开尾圆锥销    		 China National Standards
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    GB/T 863.2-1986 Round head rivets wITh small head--Black
    小半圆头铆钉 (粗制)    		 China National Standards
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    GB/T 3431.2-1986 Letter symbols for semiconductor integrated circuITs--Letter symbols for function of pins
    半导体集成电路文字符号 引出端功能符号    		 China National Standards
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    GB/T 6429-1986 The rule of type designation for quartz crystalunITs
    石英谐振器型号命名方法    		 China National Standards
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    GB/T 6363-1986 Method for the subjective assessment of the qualITy of document facsimile
    文件传真质量主观评定方法    		 China National Standards
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    GB/T 6286-1986 Determination of bulk densITy for molecular sieve
    分子筛堆积密度测定方法    		 China National Standards
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    GB/T 6277-1986 Methods of measurement for television transmITters
    电视发射机测量方法    		 China National Standards
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    GB 6280-1986 CapacITy series and frequency channels arrangement in 25 to 1000 MHz land mobile telecommunication network
    25～1000 MHz陆地移动通信网的容量系列及频道配置    		 China National Standards
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    GB/T 6254-1986 Type specification for variable preset capacITors--Type C in electronic equipments
    电子设备用C类预调可变电容器类型规范    		 China National Standards
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    GB/T 6253-1986 Type specification for variable trimmer capacITors--Type B in electronic equipments
    电子设备用B类微调可变电容器类型规范    		 China National Standards
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    GB/T 6252-1986 Type specification for variable tuning capacITors--Type A in electronic equipments
    电子设备用A类调谐可变电容器类型规范    		 China National Standards
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    GB/T 5874-1986 Image produced by camera aperture type W on 16mm motion-picture film--PosITion and dimensions
    16mm W型电影摄影机片窗所形成的画面位置和尺寸    		 China National Standards
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    GB/T 5889-1986 Method of quantITative analysis of ramie chemical components
    苎麻化学成分定量分析方法    		 China National Standards
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    GB/T 5886-1986 Testing method of single fiber breaking tenacITy of ramie
    苎麻单纤维断裂强度试验方法    		 China National Standards
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    GB/T 5885-1986 Testing method of whITeness of ramie fiber
    苎麻纤维白度试验方法    		 China National Standards
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    GB/T 5882-1986 Testing method of bundle breaking tenacITy of ramie fiber
    苎麻束纤维断裂强度试验方法    		 China National Standards
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    GB/T 6195-1986 Determination of vITamin C in vegetables and fruits(2，6-dichloro indophenoltitration method)
    水果、蔬菜维生素C含量测定法 (2，6-二氯靛酚滴定法)    		 China National Standards
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    GB/T 5707-1985 Textile terms and definITions (Jute，ramie， flax， hemp)
    纺织名词术语 (麻部分)    		 China National Standards
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    GB/T 5706-1985 Textile terms and definITions (Wool)
    纺织名词术语 (毛部分)    		 China National Standards
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    GB/T 5705-1985 Textile terms and definITions (Cotton)
    纺织名词术语 (棉部分)    		 China National Standards
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    GB/T 5687.4-1985 Methods for chemical analysis of ferrochromium--The neutralization tITration method for the determination of nitrogen content
    铬铁化学分析方法 中和滴定法测定氮量    		 China National Standards
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    GB/T 5594.5-1985 Test methods for properties of structure ceramic used in electronic components--Test method forvolume resistivITy
    电子元器件结构陶瓷材料性能测试方法 体积电阻率测试方法    		 China National Standards
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    GB/T 5599-1985 Railway vehicles--Specification for evaluation the dynamic performance and accredITation test
    铁道车辆动力学性能评定和试验鉴定规范    		 China National Standards
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    GB/T 5526-1985 Inspection of vegetable oils--Methods for determination of specific gravITy
    植物油脂检验 比重测定法    		 China National Standards
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    GB/T 5444-1985 The test methods for the technical specifications of subscriber line signalling for automatic telephone swITching network
    电话自动交换网用户信号技术指标测试方法    		 China National Standards
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    GB/T 5443-1985 The test methods for the technical specifications of ringing and tone for automatic telephone swITchingnetwork
    电话自动交换网铃流和信号音技术指标测试方法    		 China National Standards
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    GB/T 5442-1985 The test methods for the technical specifications of inband pulsing single frequency line signalling system for automatic telephone swITching network
    电话自动交换网带内单频脉冲线路信号技术指标测试方法    		 China National Standards
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    GB/T 5441.7-1985 Test methods for communication cable--Attenuation coefficient test--Open and short circuIT method
    通信电缆试验方法 衰减常数试验 开短路法    		 China National Standards
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    GB/T 5441.4-1985 Test methods for communication cable--Impedance and impedance irregularITies test of coaxial pair--Pulse method
    通信电缆试验方法 同轴对端阻抗及内部阻抗不均匀性试验 脉冲法    		 China National Standards
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    GB/T 5441.3-1985 Test methods for communication cable--CapacITance unbalance test
    通信电缆试验方法 电容耦合及对地电容不平衡试验    		 China National Standards
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    GB/T 5441.2-1985 Test methods for communication cable--CapacITance test--Bridge method
    通信电缆试验方法 工作电容试验 电桥法    		 China National Standards
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    GB/T 5298-1985 Image area on 35mm motion-picture films wITh masked picture--Positions and dimensions
    35mm电影遮幅法影片画面的位置及尺寸    		 China National Standards
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    GB/T 75-1985 Slotted set screws wITh long dog point
    开槽长圆柱端紧定螺钉    		 China National Standards
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    GB/T 74-1985 Slotted set screws wITh cup point
    开槽凹端紧定螺钉    		 China National Standards
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    GB/T 73-1985 Slotted set screws wITh flat point
    开槽平端紧定螺钉    		 China National Standards
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    GB/T 71-1985 Slotted set screws wITh cone point
    开槽锥端紧定螺钉    		 China National Standards
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    GB/T 5278-1985 Fasteners--SplIT pin holes and wireholes
    紧固件 开口销孔和金属丝孔    		 China National Standards
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    GB/T 5211.4-1985 Determination of tamped volume and apparent densITy of pigments
    颜料装填体积和表观密度的测定    		 China National Standards
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    GB/T 5167-1985 Sintered metal materials and hardmetals--Determination of electrical resistivITy
    烧结金属材料和硬质合金电阻率的测定    		 China National Standards
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    GB/T 5124.4-1985 Methods for chemical analysis of hardmetals--The photometric peroxide method for the determination of tITanium content
    硬质合金化学分析方法 过氧化物光度法测定钛量    		 China National Standards
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    GB/T 5081-1985 Guide for the collection of reliabilITy，availability and maintainability data from field performance of electronic items
    电子产品现场工作可靠性、有效性和维修性数据收集指南    		 China National Standards
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    GB/T 5080.5-1985 Equipment reliabilITy testing--Compliance test plans for success ratio
    设备可靠性试验成功率的验证试验方案    		 China National Standards
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    GB/T 5080.4-1985 Equipment reliabilITy testing--Procedure for point estimates and confidence intervals from reliability determination tests(Exponential distribution)
    设备可靠性试验 可靠性测定试验的点估计和区间估计方法 (指数分布)    		 China National Standards
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    GB/T 5078-1985 Method for the determination of the space required by capacITors and resistors with unidirectional terminations
    单向引出的电容器和电阻器所需空间的测定方法    		 China National Standards
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