flow resistance
flow resistance, Total:9 items.
The international standard classification for "flow resistance" includes: Acoustics and acoustic measurements , Valves in general , Semiconductor devices , Electrical and electronic testing , Electromechanical components in general , Aerospace electric equipment and systems .
The Chinese standard classification for "flow resistance" includes: Acoustic Measurement , Valve , Power semiconductor device and parts , AC/DC electrical instrument recording instrument , Technical management , Electronic components .
Group Standards of the People's Republic of China
- T/ZZB 2227-2021 Copper low resistance backflow preventer 2021
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 8446.2-2004 Heat sink for power semiconductor device - Part 2: Measuring method of thermal resistance and imput fluid-output fluid pressure difference
- GB/T 3928-1983 D.C.resistive volt ratio boxes
- GB/T 25077-2010 Acoustics—Materials for acoustical applications—Determination of airflow resistance
- GB/T 30832-2014 Valves―Test method of flow coefficient and flow resistance coefficient
Professional Standard - Machinery
- JB/T 5296-1991 Valves for General Purposes Test Method of Flow Coefficient and Flow Resistance Coefficient
Professional Standard - Electron
- SJ 2193-1982 Electrical parameter series for chokes of rectifier filters
国家市场监督管理总局、中国国家标准化管理委员会
- GB/T 8446.2-2022 Heat sinks for power semiconductor devices—Part 2: Measurement methods of thermal resistance and inlet-outlet fluid pressure drop
Professional Standard - Aerospace
- QJ/Z 117-1982 Design of Transformer and Choking Coil
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