Traditional Culture Encyclopedia - Traditional culture - Difference between German Standard and National Standard of Oxygen Flowmeter
Difference between German Standard and National Standard of Oxygen Flowmeter
The national standard has a unified standard, and the German standard can be defined by the manufacturer.
The national standard will use different color labels to identify products, while the German standard is based on the model of the factory.
Oxygen flowmeter Thermal gas mass flowmeter is designed based on the principle of heat conduction technology and combined with Newton's law of thermodynamics. By measuring the heat taken away by the medium in the pipeline when passing through the probe, the mass flow or standard temperature and pressure flow can be directly measured.
- Previous article:Sentence excerpts about characterization
- Next article:Teacher's Day handbook content information
- Related articles
- What is the artistic value of seals in Han Dynasty?
- What is the meaning of "creation" in the phrase "external teacher of creation, in the source of the heart"?
- Delicious places in Huilong Town, Qidong City
- Hunan Province, the new crown prevention and control of traditional Chinese medicine preventive formula (Hunan prevention of the new crown of traditional Chinese medicine prescription)
- What is the legend of the festival of offering sacrifices to stoves?
- According to the classification of carbon trading, there are several basic products in China carbon trading market at present.
- How suitable is the width and height of the ceiling in the living room?
- Advantages and disadvantages of Dai bamboo house and Hakka folk house
- How to make dried tofu?
- Which items are typical representatives of the military thoughts of ancient European countries?