GB/T 5275.7-2014
China national
standard english version:
GB
中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 5275.7-2014
Gas analysis―Preparation of calibration gas mixtures using dynamic volumetric methods―Part 7: Thermal mass-flow controllers 气体分析 动态体积法制备校准用混合气体 第7部分:热式质量流量控制器
Issued Date:2014-07-08
Implemented Date:2014-12-01
Issued by:
The Standardization Administration of the People's Republic of China