1990 year China issued GB standards list


	GB/T 12512-1990 Fibre optic attenuators--Part 1:Generic specification 纤维光学衰减器第一部分:总规范(可供认证用)
	GB/T 12328-1990 Legend and color standard for comprehensive engineering geological map 综合工程地质图图例及色标
	GB/T 12368-1990 Modules of bevel gears 锥齿轮模数
	GB/T 12371-1990 Bevel gears--Information of the dimensional data to be given on the drawing 锥齿轮图样上应注明的尺寸数据
	GB/T 12578-1990 Lubricating oils--Determination of flow ability--U-tube method 润滑油流动性测定法 (U 形管法)
	GB/T 387-1990 Dark petroleum products--Determination of sulphur content--Tubular oven method 深色石油产品硫含量测定法 (管式炉法)
	GB/T 12214-1990 Silica sand and flour for investment casting 熔模铸造用硅砂、粉
	GB/T 12639-1990 Methods of in-orbit testing for communication satellite payload performances 通信卫星有效载荷性能的在轨测试方法
	GB/T 12575-1990 Liquid fuel oils--Determination of vanadium content--Flameless atomic absorption spectroscopic method 液体燃料油钒含量测定法无火焰原子吸收光谱法
	GB/T 4333.10-1990 Methods for chemical analysis of ferrosilicon--The infrared absorption method for the determination of carbon content 硅铁化学分析方法红外线吸收法测定碳量
	GB/T 12568-1990 Sectional specification for display storage tubes 直观存储管分规范 (可供认证用)
	GB/T 7631.8-1990 Lubricants and related products (class L)--Classification--Part 8:Family X (Greases) 润滑剂和有关产品(L类) 的分类第8 部分:X 组 (润滑脂)
	GB/T 12438-1990 Test method for industrial powdery explosivescontained ammonium nitrate and trinitrotoluene 工业粉状铵梯炸药试验方法
	GB/T 12267-1990 Marine navigational equipment--General requirements--Methods of testing and required test results 船用导航设备通用要求和试验方法
	GB/T 12633-1990 Terms for the measurements of the properties of the piezoelectric crystals 压电晶体性能测试术语
	GB/T 12333-1990 Metallic coatings--Electroplated coatings of copper for engineering purposes 金属覆盖层工程用铜电镀层
	GB/T 12166-1990 Electrical characteristics of unbalanced voltage digital interface circuits 非平衡电压数字接口电路的电气特性
	GB/T 12648-1990 Generic specification for weather radars 天气雷达通用技术条件
	GB/T 12563-1990 Requirements of terrestrial interface for domestic satellite communications earth stations 国内卫星通信地球站地面接口要求
	GB/T 12281-1990 Requirements for the interconnections and matching of color television broadcast receivers and other equipment 彩色电视广播接收机与其他设备互连配接要求

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