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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 "EL" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 961-1988 Spacers for sELf-locking nuts，singlelug，anchor
    单耳托板自锁螺母垫片    		 China National Standards
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    GB/T 943-1988 Procurement specification for sELf-locking nuts
    自锁螺母技术条件    		 China National Standards
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    GB/T 941-1988 Boots for sELf-locking nuts，angle，anchor
    角形托板自锁螺母保护罩    		 China National Standards
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    GB/T 940-1988 Boots for sELf-locking nuts，twolug，anchor
    双耳托板自锁螺母保护罩    		 China National Standards
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    GB/T 939-1988 Boots for sELf-locking nuts，singlelug，anchor
    单耳托板自锁螺母保护罩    		 China National Standards
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    GB/T 938-1988 SELf-locking nuts，floating
    游动自锁螺母    		 China National Standards
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    GB/T 937-1988 SELf-locking nuts，anchor，floating，Gang channel
    成组游动托板自锁螺母    		 China National Standards
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    GB/T 933-1988 SELf-locking nuts，twolug，anchor，sealing
    气密双耳托板自锁螺母    		 China National Standards
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    GB/T 932-1988 SELf-locking nuts，singlelug，anchor，sealing
    气密单耳托板自锁螺母    		 China National Standards
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    GB/T 931-1988 SELf-locking nuts，angle，anchor
    角形托板自锁螺母    		 China National Standards
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    GB/T 930-1988 SELf-locking nuts，twolug，anchor
    双耳托板自锁螺母    		 China National Standards
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    GB/T 929-1988 SELf-locking nuts，singlelug，anchor
    单耳托板自锁螺母    		 China National Standards
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    GB/T 1340-1988 Supports for sELf-locking nuts，anchor floating，Gang channel
    成组游动托板自锁螺母支架    		 China National Standards
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    GB/T 1339-1988 SELf-locking nuts，reduced hexagon
    小六角自锁螺母    		 China National Standards
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    GB/T 1338-1988 SELf-locking nuts，reduced hexagon oblate
    小六角扁自锁螺母    		 China National Standards
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    GB/T 10129-1988 Methods of measurement of magnetic properties of magnetic steEL sheet and strip at medium frequencies
    电工钢片(带)中频磁性能测量方法    		 China National Standards
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    GB/T 10122-1988 Iron ores (sinter and pELlets)--Sampling and sample preparation for physical testing
    铁矿石(烧结矿、球团矿) 物理试验用试样的取样和制样方法    		 China National Standards
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    GB/T 10098-1988 The specification of marine gearbox for medium speed diesEL engine
    船用中速柴油机齿轮箱技术条件    		 China National Standards
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    GB/T 10089-1988 Accuracy of cylindrical worm and wormwheEL
    圆柱蜗杆、蜗轮精度    		 China National Standards
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    GB/T 10086-1988 Terminology and symbols for cylindrical worm and worm wheEL
    圆柱蜗杆、蜗轮术语及代号    		 China National Standards
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    GB/T 9988-1988 Test method for alkali resistance of porcELain enamels
    搪瓷耐碱性能测试方法    		 China National Standards
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    GB/T 1337-1988 SELf-locking nuts，hexagon
    六角自锁螺母    		 China National Standards
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    GB/T 9800-1988 Chromate conversion coatings on ELectroplated zinc and cadmium coatings
    电镀锌和电镀镉层的铬酸盐转化膜    		 China National Standards
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    GB/T 9790-1988 Metallic and rELated coatings--Vickers and Knoop microhardness tests
    金属覆盖层及其他有关覆盖层 维氏和努氏显微硬度试验    		 China National Standards
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    GB/T 509-1988 Engine fuELs--Determination of existent gum
    发动机燃料实际胶质测定法    		 China National Standards
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    GB/T 2429-1988 Aviation fuELs--Calculation of net heat of combustion
    航空燃料净热值计算法    		 China National Standards
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    GB/T 9758.7-1988 Paints and varnishes--Determination of “soluble” metal content--Part 7:Determination of mercury content of the pigment portion of the paint and of the liquid portion of water-dilutable paints--FlamELess atomic absorption spectrometric method
    色漆和清漆 “可溶性”金属含量的测定 第七部分:色漆的颜料部分和水可稀释漆的液体部分的汞含量的测定 无焰原子吸收光谱法    		 China National Standards
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    GB/T 9718-1988 Information processing--General purpose reELs with 8mm centre hole for magnetic tape for interchange instrumentation applications
    信息处理 互换计测磁带用 8mm中心孔通用带盘    		 China National Standards
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    GB/T 9715-1988 Information processing--Precision reELs for magnetic tape used in interchange instrumentation applications
    信息处理 互换计测磁带用的精密带盘    		 China National Standards
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    GB/T 9714-1988 Information processing--General purpose hubs and reELs with 76mm centre hole for magnetic tape usedin interchange instrumentation applications
    信息处理 互换计测磁带用的76mm中心孔通用带盘和盘芯    		 China National Standards
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    GB/T 9713-1988 Information processing--Recording characteristics of instrumentation magnetic tape (includingtELemetry systems)--Interchange requirements
    信息处理 计测磁带(包括遥测系统)的记录特性 互换要求    		 China National Standards
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    GB 9662-1988 GuidELine on intervention levels and medical management in the event of radiological accident
    电离辐射事故干预水平及医学处理原则    		 China National Standards
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    GB/T 9641-1988 Test method for tensile properties of rigid cELlular plastics
    硬质泡沫塑料拉伸性能试验方法    		 China National Standards
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    GB/T 9629-1988 Inductor and transformer cores for tELecommunications--Part 4:Blank detail specification--Magnetic oxide cores for transformers and chokes for power applications--Assessment level A
    通信用电感器和变压器磁芯 第四部分:空白详细规范 电源变压器和扼流圈用磁性氧化物磁芯 评定水平 A(可供认证用)    		 China National Standards
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    GB/T 9628-1988 Inductor and transformer cores for tELecommunications--Part4:sectional specification--Magnetic oxide cores for transformers and chokes forpower applications
    通信用电感器和变压器磁芯 第四部分:分规范 电源变压器和扼流圈用磁性氧化物磁芯(可供认证用)    		 China National Standards
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    GB/T 9627-1988 Inductor and transformer cores for tELecommunications--Part 3:Blank detail specification--Magnetic oxide cores for broad-band transformers--Assessment levels A and B
    通信用电感器和变压器磁芯 第三部分:空白详细规范 宽带变压器用磁性氧化物磁芯评定水平 A和B (可供认证用)    		 China National Standards
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    GB/T 9626-1988 Inductor and transformer cores for tELecommunications--Part 3:Sectional specification--Magnetic oxide cores for broad-band transformers
    通信用电感器和变压器磁芯 第三部分:分规范 宽带变压器用磁性氧化物磁芯 (可供认证用)    		 China National Standards
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    GB/T 9625-1988 Inductor and transformer cores for tELecommunications--Part 2:Blank detail specification--Magnetic oxide cores for inductor applications--Assessment level A
    通信用电感器和变压器磁芯 第二部分:空白详细规范 电感器用磁性氧化物磁芯 评定水平 A (可供认证用)    		 China National Standards
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    GB/T 9624-1988 Inductor and transformer cores for tELecommunications--Part 2:sectionalspecification--Magnetic oxide cores for inductor applications
    通信用电感器和变压器磁芯 第二部分:分规范 电感器用磁性氧化物磁芯 (可供认证用)    		 China National Standards
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    GB/T 9623-1988 Inductor and transformer cores for tELecommunications--Part 1:Generic specification
    通信用电感器和变压器磁芯 第一部分:总规范 (可供认证用)    		 China National Standards
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    GB/T 9541-1988 2400 bits per second duplex modem using the echo cancELlation technique standardized for use on the general switched telephone network and on point-to-point 2 wire leased telephone-type-circuits
    在普通电话交换网和点对点二线租用电话型电路上使用标准化的回波抵消技术的2400比特/ 秒双工调制解调器    		 China National Standards
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    GB/T 9602-1988 Measuring methods of ELectrical properties of continuous wave magnetrons
    连续波磁控管电性能测试方法    		 China National Standards
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    GB/T 9544-1988 Informationprocessing systems--Computer graphics--Graphical kernEL system (GKS) functional description
    信息处理系统 计算机处理图形 图形核心系统 (GKS)的功能描述    		 China National Standards
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    GB/T 9537-1988 Keyboard switches foruse in ELectronic equipment--Part 1:Generic specification
    电子设备用键盘开关 第一部分:总规范 (可供认证用)    		 China National Standards
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    GB/T 9534-1988 Test method for complex permittivity of solid diELectric materials at millimeter wave frequencies using “Quasi-optic Cavity” technique
    毫米波频段固体电介质材料介电特性测试方法 准光腔法    		 China National Standards
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    GB/T 9531.1-1988 General specification for ELectronic ceramic parts
    电子陶瓷零件技术条件    		 China National Standards
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    GB/T 9530-1988 Terms for ELectronic ceramics
    电子陶瓷名词术语    		 China National Standards
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    GB 9486-1988 DiesEL engine--Exhaust smoke measurement method at steady state
    柴油机稳态排气烟度及测定方法    		 China National Standards
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    GB/T 799-1988 EyELet bolts
    地脚螺栓    		 China National Standards
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    GB/T 9409-1988 Specifications for colour TV demodulation equipment (1 TV+1 sound program) used in long-haul terres-trial analog radio-rELay systems
    长距离地面模拟微波接力系统 彩色电视解调机 (一路电视一路伴音) 技术条件    		 China National Standards
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    GB/T 9408-1988 Specifications for colour TV modulation equipment (1 TV+1 sound program) used in long-haul terres-trial analog radio-rELay systems
    长距离地面模拟微波接力系统 彩色电视调制机 (一路电视一路伴音) 技术条件    		 China National Standards
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    GB/T 9388-1988 Methods of measurement for wirELess microphonesystems
    无线传声器系统测量方法    		 China National Standards
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    GB/T 9382-1988 Bayes method of rELiability demonstration testing for colour broadcasting TV receiver
    彩色电视广播接收机可靠性验证试验 贝叶斯方法    		 China National Standards
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    GB/T 9379-1988 Subjective tests and assessment for broadcasting tELevision receivers
    电视广播接收机主观试验评价方法    		 China National Standards
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    GB 9378-1988 Safety requirements for video-audio and pulse equipment of broadcasting tELevision studio system
    广播电视演播系统的视音频和脉冲设备安全要求    		 China National Standards
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    GB/T 9402-1988 Minimum performance requirements on high fidELity microphones
    高保真传声器最低性能要求    		 China National Standards
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    GB/T 4958.9-1988 Methods of measurement for equipment used in terrestrial radio-rELay systems--Part 2:Mesurements for sub-systems--Section nine--Stand-by channel switching equipment
    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 第九节 备用通道倒换设备    		 China National Standards
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    GB/T 4958.8-1988 Methods of measurement for equipment used in terrestrial radio-rELay systems--Part 2:Measurements for sub-systems--Section eight--Radio receivers
    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 第八节 接收机    		 China National Standards
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    GB/T 4958.7-1988 Methods of measurement for equipment used in terrestrial radio-rELay systems--Part 2:Measurements for sub-systems--Section seven--Radio trsnsmitters
    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 第七节 发射机    		 China National Standards
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    GB/T 4958.6-1988 Methods of measurement for equipment used in terrestrial radio-rELay systems--Part 2:Measurements for sub-systems--Section five--Frequency demodulators
    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 第五节 频率解调机    		 China National Standards
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    GB/T 4958.5-1988 Methods of measurement for equipment used in terrestrial radio-rELay systems--Part 2:Measurements for sub-systems--Section four--Frequency modulators
    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 第四节 频率调制机    		 China National Standards
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    GB/T 4958.4-1988 Methods of measurement for equipment used in terrestrial radio-rELay systems--Part 2:Measurements for sub-systems--Section one--General
    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 第一节 通则    		 China National Standards
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    GB/T 4958.13-1988 Methods of measurement for equipment used in terrestrial radio-rELay systems--Part 3:Simulated systems--Section five--Measurement of mutual inter-ference
    地面无线电接力系统所用设备的测量方法 第三部分:仿真系统的测量 第五节 相互干扰的测量    		 China National Standards
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    GB/T 4958.12-1988 Methods of measurement for equipment used in terrestrial radio-rELay systems--Part 3:Simulated systems--Section four--Measurementsfor f.d.m. transmission
    地面无线电接力系统所用设备的测量方法 第三部分:仿真系统的测量 第四节 频分复用传输的测量    		 China National Standards
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    GB/T 4958.11-1988 Methods of measurement for aquipment used in terrestrial radio-rELay systems--Part 3:Simulated systems--Section three--Measurements for mono-chrome and colour television transmission
    地面无线电接力系统所用设备的测量方法 第三部分:仿真系统的测量 第三节 黑白和彩色电视传输的测量    		 China National Standards
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    GB/T 4958.10-1988 Methods of measurement for equipment used in terrestrial radio-rELay systems--Part 3:Simulated systems--Section one--General
    地面无线电接力系统所用设备的测量方法 第三部分:仿真系统的测量 第一节 通则    		 China National Standards
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    GB/T 9170-1988 Lubricating oils and fuELoils--Determination of total nitrogen--Modified Kjeldahl method
    润滑油及燃料油中总氮含量测定法(改进的克氏法)    		 China National Standards
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    GB 9132-1988 Regulations for shallow ground disposal of solid low-and intermediate-levEL radioactive wastes
    低中水平放射性固体废物的浅地层处置规定    		 China National Standards
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    GB/T 9068-1988 Determination of sound power levELs for noise emitted by heating，ventilating and air conditioning equipments--Engineering method
    采暖通风与空气调节设备噪声声功率级的测定 工程法    		 China National Standards
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    GB/T 9065.3-1988 Hydraulic fluid power--Hose connector--Connecting dimension (Part 3--WELding or quick-action type)
    液压软管接头 连接尺寸 焊接式或快换式    		 China National Standards
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    GB/T 9050-1988 General specifications for 8GHz band microwave communication equipment used in analogue radio-rELay systems
    模拟微波接力通信系统8 GHz微波通信设备总技术条件    		 China National Standards
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    GB/T 4958.3-1988 Methods of measurement for equipment used in terrestrial radio-rELay systems--Part 3:Simulated systems--Section six--Measurements for sound-programme transmission
    地面无线电接力系统所用设备的测量方法 第三部分:仿真系统的测量 第六节:声音节目传输的测量    		 China National Standards
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    GB/T 4958.2-1988 Methods of measurement for equipment used in terrestrial radio-rELay systems--Part 3:Simulated systems--Section two--Measurements in the baseband
    地面无线电接力系统所用设备的测量方法 第三部分:仿真系统的测量 第二节:基带测量    		 China National Standards
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    GB/T 9025-1988 Cabled distribution systems primarily intended for sound and tELevision signals operating between30 MHz and 1 GHz--Electrical and mechanical matching values
    30 MHz～1GHz声音和电视信号的电缆分配系统 机电配接值    		 China National Standards
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    GB/T 8822.8-1988 Seed zones of Chinese forest trees--Seed zones of Larix gmELinii Rupr.
    中国林木种子区 兴安落叶松种子区    		 China National Standards
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    GB 8786-1988 Diagnostic criteria and principles of management of occupational acute nickEL carbonyl poisoning
    职业性急性羰基镍中毒诊断标准及处理原则    		 China National Standards
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    GB/T 8808-1988 Test method for peEL force of flexible laminated plastics
    软质复合塑料材料剥离试验方法    		 China National Standards
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    GB/T 8654.6-1988 Methods for chemical analysis of manganese metal--The diamine hydrochloride-iodo-metric method for the determination of sELenium content
    金属锰化学分析方法 盐酸联氨-碘量法测定硒量    		 China National Standards
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    GB/T 223.3-1988 Methods forchemical analysis of iron，steEL and alloy--The diantipyryl methane phosphomolybdate gravimetric method for the determination of phosphorus content
    钢铁及合金化学分析方法 二安替比林甲烷磷钼酸重量法测定磷量    		 China National Standards
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    GB/T 8617.2-1988 Technical parameters and measuring methods for FM broadcasting coder--Supplementary channEL
    调频广播编码器技术参数和测量方法 附加声道    		 China National Standards
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    GB 8601-1988 Rolled solid wheELs for railway
    铁路用辗钢整体车轮    		 China National Standards
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    GB/T 8454-1987 Determination of ferrous iron contentin reduced ilmenite powder for wELding rod
    焊条用还原钛铁矿粉中亚铁量的测定    		 China National Standards
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    GB/T 1391-1987 Turnable treads steEL gangway ladder
    活动踏步钢质舷梯    		 China National Standards
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    GB/T 8378-1987 Test methods for fittings of solid web steEL frame
    实腹钢门、窗五金配件试验方法    		 China National Standards
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    GB/T 8377-1987 Technical requirements for fittings of solid web steEL frame
    实腹钢门、窗五金配件通用技术条件    		 China National Standards
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    GB/T 8376-1987 Basic dimensions for fittings of solid web steEL frame
    实腹钢门、窗五金配件基本尺寸    		 China National Standards
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    GB/T 8156.2-1987 Methods for chemical analysis of aluminium fluoride for industrial use--The ELectrometric method for the determination of water content
    工业用氟化铝化学分析方法 电量法测定水分含量    		 China National Standards
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    GB/T 7828-1987 RELiability design reviews
    可靠性设计评审    		 China National Standards
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    GB/T 7827-1987 RELiability prediction procedure
    可靠性预计程序    		 China National Standards
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    GB 7808-1987 Diagnostic criteria and principles of management of occupational mELanosis
    职业性黑变病诊断标准及处理原则    		 China National Standards
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    GB 7805-1987 Diagnostic criteria and principles of management of occupational ELectroflash dermatitis
    职业性电光性皮炎诊断标准及处理原则    		 China National Standards
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    GB 7795-1987 Diagnostic criteria and principles of management of occupational acute ELectric ophthalmia (Keratoconjunctivitis caused by ultraviolet rays)
    职业性急性电光性眼炎(紫外线角膜结膜炎)诊断标准及处理原则    		 China National Standards
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    GB/T 7752-1987 Test method for ELectric strength of insulating adhesive tape at power frequency
    绝缘胶粘带工频击穿强度试验方法    		 China National Standards
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    GB/T 223.58-1987 Methods for chemical analysis of iron，steEL and alloy--The extraction-absorption catalytic polarographic method for the determination of manganese content
    钢铁及合金化学分析方法 亚砷酸钠-亚硝酸钠滴定法测定锰量    		 China National Standards
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    GB/T 223.57-1987 Methods for chemical analysis of iron，steEL and alloy--The extraction-absorption catalytic polarographic method for the determination of cadmium content
    钢铁及合金化学分析方法 萃取分离-吸附催化极谱法测定镉量    		 China National Standards
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    GB/T 223.54-1987 Methods for chemical analysis of iron，steEL and alloy--The flame atomic absorption spectrophotometric method for the determination of nickel content
    钢铁及合金化学分析方法 火焰原子吸收分光光度法测定镍量    		 China National Standards
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    GB/T 223.53-1987 Methods for chemical analysis of iron，steEL and alloy--The flame atomic absorption spectrophotometric method for the determination of copper content
    钢铁及合金化学分析方法 火焰原子吸收分光光度法测定铜量    		 China National Standards
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    GB/T 223.52-1987 Methods for chemical analysis of iron，steEL and alloy--The hydroxylamine hydrochloride-iodometric method for the determination of selenium content
    钢铁及合金化学分析方法 盐酸羟胺-碘量法测定硒量    		 China National Standards
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    GB/T 223.51-1987 Methods for chemical analysis of iron，steEL and alloy--The 2-(5-Bromo-2-pyridylazo)-5-diethylaminophenol photometric method for the determination of zinc content
    钢铁及合金化学分析方法 5-Br-PADAP 光度法测定锌量    		 China National Standards
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    GB/T 7637-1987 Operation rules of construction and installation of biogas pipELines for peasant household
    农村家用沼气管路施工安装操作规程    		 China National Standards
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