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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 21838.4-2020 |
Metallic materials—Instrumented indentation test for hardness and materials parameters—Part 4: Test method for metallic and non-metallic coatings 金属材料 硬度和材料参数的仪器化压入试验 第4部分:金属和非金属覆盖层的试验方法 |
China National Standards parameters—Part |
 English PDF |
| GB/T 21838.1-2019 |
Metallic materials—Instrumented indentation test for hardness and materials parameters—Part 1:Test method 金属材料 硬度和材料参数的仪器化压入试验 第1部分：试验方法 |
China National Standards parameters—Part |
English PDF |
| GB/T 36075.3-2018 |
Acoustics—Measurement of room acoustic parameters—Part 3: Open plan offices 声学 室内声学参量测量 第3部分：开放式办公室 |
China National Standards parameters—Part |
English PDF |
| GB/T 36075.1-2018 |
Acoustics—Measurement of room acoustic parameters—Part 1: Performance spaces 声学 室内声学参量测量 第1部分：观演空间 |
China National Standards parameters—Part |
English PDF |
| GB/T 36075.2-2018 |
Acoustics—Measurement of room acoustic parameters—Part 2: Reverberation time in ordinary rooms 声学 室内声学参量测量 第2部分：普通房间混响时间 |
China National Standards parameters—Part |
English PDF |
| GB/T 22319.9-2018 |
Measurement of quartz crystal unit parameters—Part 9:Measurement of spurious resonances of piezoelectric crystal units 石英晶体元件参数的测量 第9部分：石英晶体元件寄生谐振的测量 |
China National Standards parameters—Part |
English PDF |
| GB/T 22319.11-2018 |
Measurement of quartz crystal unit parameters—Part 11:Standard method for the determination of the load resonance frequency fL and the effective load capacitance CLeff using automatic network analyzer techniques and error correction 石英晶体元件参数的测量 第11部分：采用自动网络分析技术和误差校正确定负载谐振频率和有效负载电容的标准方法 |
China National Standards parameters—Part |
English PDF |
| GB/T 22319.7-2015 |
Measurement of quartz crystal unit parameters—Part 7: Measurement of activity dips of quartz crystal units 石英晶体元件参数的测量 第7部分：石英晶体元件活性跳变的测量 |
China National Standards parameters—Part |
English PDF |
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