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 GB/T 5468-1991  
Measurement method of smoke and dust emission from boilers
锅炉烟尘测试方法
 GB/T 13270-1991  
AtMospheric air--Test dust standardsample--Simulated atmospheric dust
大气 试验粉尘标准样品 模拟大气尘
 GB/T 13269-1991  
AtMospheric air--Test dust standard sample--Fly ash
大气 试验粉尘标准样品 煤飞尘
 GB/T 13268-1991  
AtMospheric air--Test dust standard sample--Loess dust
大气 试验粉尘标准样品 黄土尘
 SJ/T 10274-1991  
Test Methods of mask alignment and exposure system
掩模对准曝光机测试方法
 HG/T 2237-1991  
(A01-1, A01-2-AMino-drying varnish)
A01-1、A01-2氨基烘干清漆
 SJ/T 10248-1991  
Detail specification for electronic coMponents. Photo tube of type GD-24 (Applicable for certification)
电子器件详细规范 ｇｄ－２４型光电管 （可供认证用）
 SJ/T 10289-1991  
General specification of charger for alkaline nickel-cadMium seal rechargeable battery
镉镍密封碱性蓄电池充电器总规范
 HG/T 2243-1991  
(Machine finish)
机床面漆
 HG/T 2244-1991  
(Machine Primer)
机床底漆
 HG/T 2250-1991  
(Black iron oxide pigMents)
氧化铁黑颜料
 HG/T 2242-1991  
(PigMents standard sample management approach)
颜料标准样品管理办法
 JC/T 447-1991  
Reinforced asbestos-ceMent middle corrugated tiles
钢丝网石棉水泥中波瓦
 GB/T 13273-1991  
Analytical Method for 131I in plant and animal thyroid gland
植物、动物甲状腺中碘-131的分析方法
 GB/T 13266-1991  
Water quality--DeterMination of the acute toxicity of substance to Daphnia (Daphnia magna straus)
水质 物质对蚤类(大型蚤)急性毒性测定方法
 GB/T 13272-1991  
Analytical Method for 131I in water
水中碘-131的分析方法
 GB/T 13267-1991  
Water quality--DeterMination of the acute toxicity of substance to a freshwater fish (Brachydanio rerio Hamilton-Buchanan)
水质 物质对淡水鱼(斑马鱼)急性毒性测定方法
 QCN 29035-1991  
(AutoMotive leaf spring technical conditions)
汽车钢板弹簧技术条件
 GB/T 13247-1991  
Ferroalloys--SaMpling and testing methods for determination of grain size
铁合金产品粒度的取样和检测方法
 GB/T 13235.1-1991  
PetroleuM and liquid petroleum products--Volumetric calibration of vertical cylindrical metal tanks--Strapping method
石油和液体石油产品 立式圆筒形金属油罐容积标定法 (围尺法)
 GB/T 13235.2-1991  
PetroleuM and liquid petroleum products--Volumetric calibration of vertical cylindrical metal tanks--Optical reference line method
石油和液体石油产品 立式圆筒形金属油罐容积标定法 (光学参比线法)
 GB/T 13240-1991  
Iron ore pellets--DeterMination of relative free swelling index
铁矿球团 相对自由膨胀指数的测定方法
 GB/T 13242-1991  
Iron ores--Low-teMperature disintegration test--Method using cold tumbling after static reduction
铁矿石 低温粉化试验 静态还原后使用冷转鼓的方法
 GB/T 13241-1991  
Iron ores--DeterMination of reducibility
铁矿石 还原性的测定方法
 DL 451-1991  
CDT Telecontrol CoMmunication Protocol
循环式远动规约
 GB/T 13231-1991  
Calculated Methods of carrying capacity for receiving and dispatching tracks at railway marshalling station(3-stage/3-yard)
铁路编组站到发线通过能力计算方法 (三级三场)
 GB/T 13225-1991  
DeterMination of delay time of industrial detonator
工业雷管延期时间测定方法
 GB/T 13224-1991  
Test Methods for industrial detonating cord
工业导爆索试验方法
 DL 450-1991  
Method of test for gas content in insulating oil (CO2 elution method)
绝缘油中含气量的测试方法（二氧化碳洗脱法）
 DL 444-1991  
Reaction turbine gas etching daMage evaluation standard
反击式水轮机气蚀损坏评定标准
 HG/T 2170-1991  
(CheMical product manual written regulations)
化工产品使用说明书编写规定
 QB/T 1259-1991  
(Polyethylene air-cushion filM)
聚乙烯气垫薄膜
 QB/T 1291-1991  
Water inletting electroMagnetic valves intended to be used in automatic washing machines
自动洗衣机用进水电磁阀
 QB/T 1258-1991  
(Lead-acid batteries with a Microporous separator PVC)
铅酸蓄电池用聚氯乙烯微孔隔板
 QB/T 1260-1991  
(Soft PVC coMposite film)
软聚氯乙烯复合膜
 QB/T 1302-1991  
(Sterilized Milk automatic flexible packaging machine)
消毒乳自动软包装机
 QB/T 1303-1991  
(Three plastic cup filling and capping Machine)
三头塑杯灌装封盖机
 QB/T 1307-1991  
(Industrial sewing Machines. Basting sewing machine head)
工业缝纫机.疏缝缝纫机机头
 QB/T 1310-1991  
(Cane sugar industry overall energy consuMption standards and calculation methods)
甘蔗制糖工业企业综合能耗标准和计算方法
 QB/T 1261-1991  
(Fur industry terMinology)
毛皮工业术语
 QB/T 1265-1991  
(Fur products. SaMpling quantities and methods)
毛皮成品--抽样数量及方法
 QB/T 1309-1991  
(Milk grading requirements and energy consumption calculation method)
乳粉能源消耗分级规定及计算方法
 QB/T 1278-1991  
(Finished fur hair loss test Method)
毛皮成品掉毛测试方法
 QB 1257-1991  
(Soft PVC thin filM Blow)
软聚氯乙烯吹塑簿膜
 QB/T 1292-1991  
Water level pressure switches intended to be used in autoMatic washing machines
自动洗衣机用水位压力开关
 GY 104-1991  
Rules of Maintenance and management of broadcasting and television microwave circuit
广播电视微波电路维护管理规程
 QC/T 29033-1991  
(AutoMotive Hydraulic Transmission Performance test methods)
汽车液力变速器台架性能试验方法
 GB/T 13220-1991  
DeterMination of particle size distribution of fine powder--Method of sieve classfication with sonic wave
细粉末粒度分布的测定 声波筛分法
 DL 418-1991  
Method for determining breakdown voltage of insulating liquid from impact of thunder and lightning
绝缘液体雷电冲击击穿电压测定法
 DL 420-1991  
Method of test for refractive index and specific dispersion of electrically insulating liquid
电气绝缘液体的折射率和比色散试验方法

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