China National Standards

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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 "fo" GB Standards English PDF List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 7623-1987 Automatic answering equipment and/or parallel automatic calling equipment on the general switched telephone network, including procedures for bling of echo control devices for both manually and automatically established calls
    在电话自动交换网上的自动应答设备和(或)并行自动呼叫设备, 包括人工和自动建立呼叫时使回波控制装置停止工作的规程
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    GB/T 7622-1987 600/1200 bauds modem standardized for use in the general switched telephone network
    在电话自动交换网上使用的标准化600/1200波特调制解调器
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    GB/T 7621-1987 1200 bits per second duplex modem standardized for use in the general switched telephone network and on point-to-point 2-wire leased telephonecircuits
    在电话自动交换网和点对点二线租用电话型电路上使用的标准化的1200比特/秒双工调制解调器
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    GB/T 7620-1987 300 bits per second duplex modem standardized for use in the general switched telephone network
    在电话自动交换网上使用的标准化300比特/秒全双工调制解调器
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    GB/T 7619-1987 Electrical characteristics for balanced double-current interchange circuits for general use with integrated circuit equipment in the field of datacommunications
    在数据通信领域中通常同集成电路设备一起使用的平衡双流接口电路的电气特性
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    GB/T 7618-1987 Electrical characteristics for unbalanced double-current interchange circuits for general use with inte-grated circuit equipment in the field of data communications
    在数据通信领域中通常同集成电路设备一起使用的非平衡双流接口电路的电气特性
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    GB/T 7610-1987 Characteristics of pulse code modulation for voice-frequencies
    音频脉冲编码调制特性
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    GB/T 7590-1987 Code of Chinese ideograms set forinformation interchange--The 4th supplementary set
    信息交换用汉字编码字符集 第四辅助集
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    GB/T 7589-1987 Code of Chinese ideograms set forinformation interchange--The 2nd supplementary set
    信息交换用汉字编码字符集 第二辅助集
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    GB/T 7514-1987 Conversion between the 7-bit coded character set for information processing interchange and the 5-unit code for the telegraph service
    信息处理交换用七位编码字符集与电报用五单位电码之间的转换
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    GB/T 7585-1987 Capacity series and radio-frequency channel arrangement for analog microwave relay systems
    模拟微波接力通信系统容量系列及波道配置
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    GB/T 7583-1987 Acoustics--Pure tone air conductionthreshold audio-metry--for hearing conservation purposes
    声学 纯音气导听阈测定 听力保护用
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    GB/T 7581-1987 Dimensions of outlines for semiconductor discrete devices
    半导体分立器件外形尺寸
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    GB/T 7554-1987 Protected 5-unit numerical code for telegram service
    电报用五单位数字保护码
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    GB/T 7509-1987 Blank detail specification for microprocessor semiconductor integrated circuits
    半导体集成电路微处理器空白详细规范 (可供认证用)
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    GB/T 7515-1987 Information processing--Coding of machine readable characters (MICR and OCR)
    信息处理用机器可读字符编码 (磁墨水字符识别和光学字符识别的字符)
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    GB/T 7436-1987 Specifications of TDM equipment operating on an analog telephone-type circuit for telegraph and lower-speed data
    在模拟电话电路上开放电报及低速数据的时分复用设备技术要求
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    GB/T 7422.2-1987 16×12, 16×8, 16×4 Dot matrix data set of Mongo-lian characters for information interchange
    信息交换用蒙古文16×12、16×8、16×4点阵数据集
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    GB/T 7422.1-1987 16×12, 16×8, 16×4 Dot matrix font set of Mongo-lian characters for information interchange
    信息交换用蒙古文16×12、16×8、16×4点阵字模集
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    GB/T 7419-1987 Information processing--Implementation of the 7-bit coded character set and its 7-bit and 8-bit extensions on 3.81mm magnetic tape cassette for data interchange
    信息处理 数据交换用七位编码字符集及其七位与八位扩充在3.81mm盒式磁带上的实现方法
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    GB/T 7401-1987 Method for subjective assessment of quality of colour television pictures
    彩色电视图像质量主观评价方法
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    GB/T 4312.3-1987 Technical parameters and measuring methods for FM broadcasting transmitters of dual programmes
    调频广播发射机技术参数和测量方法 双节目
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    GB/T 7393-1987 Basic size of outlet of cable distribution systems intended for sound and television signals
    声音和电视信号的电缆分配系统输出口基本尺寸
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    GB/T 7372-1987 Dichlorodifluoromethane for industrial uses
    工业用二氟二氯甲烷 (F12)
    China National Standards
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    GB/T 7371-1987 Trichloromonofluoromethane for industrial uses
    工业用一氟三氯甲烷 (F11)
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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
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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
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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)
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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)
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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
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    GB/T 2019-1987 Fundamental parameters and technical requirements for audio tape recorders
    磁带录音机基本参数和技术要求
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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
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    GB/T 7259-1987 Guidelines for presenting performance of analog process measurement and control instrument
    模拟式过程测量和控制仪表性能表示方法 导则
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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
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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
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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
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    GB/T 7188-1987 Office machines and data processing equipment--Keyboard layouts for numeric applications
    办公机器和数据处理设备数字应用的键盘布局
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    GB/T 7130-1986 Determination of free phenols in phenol-formaldehyde mouldings--Iodometric method
    酚醛模塑制品中游离酚的测定 碘量法
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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
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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
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    GB/T 7021-1986 Glossary of terms for centrifugal pump
    离心泵名词术语
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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
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    GB/T 6843-1986 Method for determining the coating melting point of photographic materials
    感光材料涂层熔点测定方法
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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
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    GB/T 6730.8-1986 Methods for chemical analysis of iron ores--The potassium dichromate volumetric method for the determination of iron (Ⅱ)content
    铁矿石化学分析方法 重铬酸钾容量法测定亚铁量
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    GB/T 6730.7-1986 Methods for chemical analysis of iron ores--The sulfosalicylic acid photometric method for the determination of metallic iron content
    铁矿石化学分析方法 磺基水杨酸光度法测定金属铁量
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    GB/T 6730.6-1986 Methods for chemical analysis of iron ores--The ferric chloride-sodium acetate volumetric method for the determination of metallic iron content
    铁矿石化学分析方法 三氯化铁-乙酸钠容量法测定金属铁量
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    GB/T 6730.51-1986 Methods for chemical analysis of iron ores--The caustic asbestos absorption gravimetric method for the determination of carbon content in carbonate
    铁矿石化学分析方法 烧碱石棉吸收重量法测定碳酸盐中碳量
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    GB/T 6730.50-1986 Methods for chemical analysisof iron ores--The gas volumetric method for the determination of total carbon content
    铁矿石化学分析方法 气体容量法测定总碳量
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    GB/T 6730.49-1986 Methods for chemical analysis of iron ores--The flame atomic absorption spectrophotometric method for the determination of sodium and potassium content
    铁矿石化学分析方法 原子吸收分光光度法测定钠和钾量
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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
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    GB/T 6730.36-1986 Methods for chemical analysis of iron ores--The flame atomic absorption spectrophotometric method for the determination of copper content
    铁矿石化学分析方法 原子吸收分光光度法测定铜量
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    GB/T 6730.3-1986 Methods for chemical analysis of iron ores--The gravimetric method for the determination of hygroscopic moisture content in analytical samples
    铁矿石化学分析方法 重量法测定分析试样中吸湿水量
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    GB/T 6730.14-1986 Methods for chemical analysis of iron ores--The flame atomic absorption spectrophotometric method for the determination of calcium and magnesium content
    铁矿石化学分析方法 原子吸收分光光度法测定钙和镁量
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    GB/T 6730.1-1986 Methods for chemical analysis of iron ores--Preparation of predried test samples for chemical analysis
    铁矿石化学分析方法 分析用预干燥试样的制备
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    GB/T 6667-1986 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 2:Measurements for sub-systems--Section two:measurements in the antennas and passive repeaters
    地面无线电接力系统所用设备的测量方法 第二部分:分系统的测量 第二节 天线和无源转向器的测量
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    GB/T 6662-1986 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 1:Measurements common to sub-systems and simulated systems--Section three--Measurements in the intermediate-frequency range
    地面无线电接力系统所用设备的测量方法 第一部分:分系统和仿真系统通用的测量 第三节:中频范围的测量
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    GB/T 6661-1986 Nipples for insert earphones
    插入式耳机的乳头状接头
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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)
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    GB/T 2424.22-1986 Basic environmental testing procedures for electric and electronic products--Guidance for combined temperature (cold and heat) vibration (sinusoidal) tests
    电工电子产品基本环境试验规程 温度(低温、高温)和振动 (正弦) 综合试验导则
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    GB 6738-1986 Safety requirements for indicating and recording electrical measuring instruments and their accessories
    电测量指示和记录仪表及其附件的安全要求
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    GB/T 6627-1986 Designations for lumbered synthetic quartz crystals
    人造石英晶体棒材型号命名方法
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    GB/T 6595-1986 Test method for fish eye count of polypropyleneresin
    聚丙烯树脂鱼眼测试方法
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    GB/T 959.3-1986 Specifications for ring--Cutting rings
    挡圈技术条件 切制挡圈
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    GB/T 959.2-1986 Specifications for ring--Round wire snap rings
    挡圈技术条件 钢丝挡圈
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    GB/T 959.1-1986 Specifications for ring--Circlips
    挡圈技术条件 弹性挡圈
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    GB/T 922-1986 Specifications for wood screws
    木螺钉技术条件
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    GB/T 895.2-1986 Roundwire snap rings for shaft
    轴用钢丝挡圈
    China National Standards
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    GB/T 895.1-1986 Roundwire snap rings for hole
    孔用钢丝挡圈
    China National Standards
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    GB/T 894.2-1986 Circlips for shaft--Type B
    轴用弹性挡圈 B型
    China National Standards
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    GB/T 894.1-1986 Circlips for shaft--Type A
    轴用弹性挡圈 A型
    China National Standards
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    GB/T 893.2-1986 Circlips for hole--Type B
    孔用弹性挡圈 B型
    China National Standards
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    GB/T 893.1-1986 Circlips for hole--Type A
    孔用弹性挡圈 A型
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    GB/T 886-1986 Rings for shoulder
    轴肩挡圈
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    GB/T 827-1986 Rivets for name plate
    标牌铆钉
    China National Standards
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    GB/T 121-1986 Specifications for pins
    销技术条件
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    GB/T 116-1986 Specifications for rivet
    铆钉技术条件
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    GB/T 6559-1986 Screw thread shanks for thread forming screw--Metric coarse thread series
    自攻锁紧螺钉的螺杆 粗牙普通螺纹系列
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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
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    GB/T 6513-1986 Character set for bibliographic information interchange on mathematical coding of characters
    文献书目信息交换用数学字符编码字符集
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    GB/T 6494-1986 Measurement procedures for electrical characteristics of astronautic solar cells
    航天用太阳电池电性能测试方法
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    GB/T 6447-1986 Rules for abstracts and abstracting
    文摘编写规则
    China National Standards
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    GB/T 6443-1986 Involute cylindrical gears--Information of the dimensional data to be given on the drawing
    渐开线圆柱齿轮图样上应注明的尺寸数据
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    GB/T 6441-1986 The classification for casualty accidents of enterprise staff and workers
    企业职工伤亡事故分类
    China National Standards
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    GB/T 6430-1986 The rule of type designation for crystal holders (enclosures)
    晶体盒型号命名方法
    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 6390-1986 Colour standard for use in the geological map
    地质图用色标准 比例尺1∶500000~1∶1000000
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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 6303-1986 Method of inspection for ship filter
    船用油滤器检验方法
    China National Standards
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    GB/T 6302-1986 Measurement of thermodynamics parameters formarine diesel engine
    船用柴油机热工参数的测量
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    GB/T 6301-1986 Determination of fuel consumption rate for marine diesel engine
    船用柴油机燃油消耗率测定方法
    China National Standards
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    GB/T 6288-1986 Determination of particle size for granular molecular sieve
    粒状分子筛粒度测定方法
    China National Standards
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    GB/T 6287-1986 Determination of static absorbed water for molecular sieve
    分子筛静态水吸附测定方法
    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 6275-1986 Ammonium hydrogen carbonate for industrial use
    工业用碳酸氢铵
    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/T 6258-1986 Blank detail specification for disk seal power tubes
    盘封电子管空白详细规范
    China National Standards
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    GB/T 6256-1986 Blank detail specification forindustrial heating triodes
    工业加热三极管空白详细规范 (可供认证用)
    China National Standards
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    GB/T 6207-1986 Blank detail specification for oscilloscope tubes and indicator tubes
    示波管和指示管空白详细规范(可供认证用)
    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
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