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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 25498.5-2017 |
Electroacoustics—Simulators of human head and ear—Part 5：2 cM3 coupler for the measurement of hearing aids and earphones coupled to the ear by means of ear inserts 电声学 人头模拟器和耳模拟器 第5部分：测量助听器和以插入方式与人耳耦合的耳机用2cm3声耦合器 |
China National Standards M3 |
 English PDF |
| GB/T 32905-2016 |
Information security techniques—SM3 crytographic hash algorithm 信息安全技术 SM3密码杂凑算法 |
China National Standards M3 |
English PDF |
| GB/T 32076.7-2015 |
High-strength structural bolting assemblies for preloading—Part 7: M39~M64—Hexagon bolt with large width across flats and nut assemblies 预载荷高强度栓接结构连接副 第7部分：M39~M64 大六角头螺栓和螺母连接副 |
China National Standards M3 |
English PDF |
| GB/T 29160-2012 |
Test methods for solar-plus-supplementary water heating system (tank capacity more than 0.6M3) 带辅助能源的太阳能热水系统(储水箱容积大于0.6m3)性能试验方法 |
China National Standards M3 |
English PDF |
| GB/T 29158-2012 |
Technical code for solar-plus-supplementary water heating system (tank capacity more than 0.6M3) 带辅助能源的太阳能热水系统(储水箱容积大于0.6m3)技术规范 |
China National Standards M3 |
English PDF |
| GB/T 28737-2012 |
Controller for solar water heating system (tank volume more than 0.6 M3) 太阳能热水系统(储水箱容积大于0.6 m3)控制装置 |
China National Standards M3 |
English PDF |
| GB/T 26973-2011 |
Specification of solar water heating systems assisted with air-source heat pump(for capacity of water tank more than 0.6 M3) 空气源热泵辅助的太阳能热水系统（储水箱容积大于0.6m3）技术规范 |
China National Standards M3 |
English PDF |
| GB/T 26797-2011 |
Weights of classes E1、E2、F1、F2、M1、M1-2、M2、M2-3、and M3 E1、E2、F1、F2、M1、M1-2、M2、M2-3、M3等级砝码 |
China National Standards M3 |
English PDF |
| GB/T 21450-2008 |
Crude petroleum and petroleum products - Compressibility factors for hydrocarbons in the range 638 kg/M3 to 1074 kg/m3 原油和石油产品 密度在638kg/m3到1074 kg/m3范围内的烃压缩系数 |
China National Standards M3 |
English PDF |
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