1989 year China issued GB standards list


	GB/T 11297.9-1989 Test method for dielectric tangent of loss angle of pyroelectric material 热释电材料介质损耗角正切 tan δ的测试方法
	GB 11721-1989 Health standard for ethylene oxide in the air of workplace 车间空气中环氧乙烷卫生标准
	GB 11720-1989 Health standard for trichlorfon in the air ofworkplace 车间空气中敌百虫卫生标准
	GB/T 11915-1989 Water quality--Vocabulary--Part 3～7 水质词汇第三部分～第七部分
	GB/T 7631.4-1989 Lubricants and related products (class L)--Classification--Part 4:Family F (Spindlebearings，bearings and associated clutches) 润滑剂和有关产品(L类)的分类第4 部分:F组 (主轴、轴承和有关离合器)
	GB/T 11935-1989 Standard method for hygienic examination of chloroprene in drinking water sources--Gas chromato-graphy 水源水中氯丁二烯卫生检验标准方法气相色谱法
	GB/T 11842-1989 Determination of oxygen to uranium atomic ratic in uranium dioxide powder and pellets by thermogravimetric method 二氧化铀粉末和芯块的氧铀原子比测定热重法
	GB/T 11449.6-1989 Flanges for waveguides--Part 7:Relevant specification for flanges for square waveguides 波导法兰盘第七部分:方形波导法兰盘规范
	GB/T 11107-1989 Metallic and its compound powder--Determination of specific surface and particle size by air permeating method 金属及其化合物粉末比表面积和粒度测定空气透过法
	GB/T 223.17-1989 Methods for chemical analysis of iron，steel and alloy--The diantipyryl methane photometric method for the determination of titanium content 钢铁及合金化学分析方法二安替比林甲烷光度法测定钛量
	GB/T 10585-1989 Fundamental requirements of excitation systems for medium and small synchronous machines 中小型同步电机励磁系统基本技术要求
	GB/T 12053-1989 Alphanumeric character sets for optical recognition--Part 1:Character set OCR-A--Shapes and dimensions of the printed image 光学识别用字母数字字符集第一部分:OCR-A 字符集印刷图象的形状和尺寸
	GB 11507-1989 Diagnostic criteria and principles of management of occupational acute dimethyl sulfate poisoning 职业性急性硫酸二甲酯中毒诊断标准及处理原则
	GB 11729-1989 Hygienic standard for chlorothalonile in drinking water sources 水源水中百菌清卫生标准
	GB/T 249-1989 The rule of type designation for discrete semiconductor devices 半导体分立器件型号命名方法
	GB/T 11449.4-1989 Flanges for waveguides--Part 4:Relevant specification for flanges for circular waveguides 波导法兰盘第四部分:圆形波导法兰盘规范
	GB/T 10846-1989 General specifications of marine autopilot with magnetic compass 船用磁罗经自动操舵仪通用技术条件
	GB/T 11449.2-1989 Flanges for waveguides--Part 2:Relevant specification for flanges for ordinary rectangular waveguides 波导法兰盘第二部分:普通矩形波导法兰盘规范
	GB/T 11890-1989 Water quality--Determination of benzeneand its analogies--Gas chromatographic method 水质苯系物的测定气相色谱法
	GB/T 11297.11-1989 Test method for the dielectric constant of pyroelectric materials 热释电材料介电常数的测试方法

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