Regarding pressure units
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This post was last edited by crjgood on 2011-9-30 07:34. How to convert Kg/cm2 into pressure units, and what exactly is the unit referred to as “kilogram” in the chemical industry? Thank you to whoever helped me answer it.
Regarding the pressure of gases, in China we generally use its mass unit \"kilogram\" to describe it (instead of \"jin\”), with the unit being kg. The corresponding unit of pressure is “kg/cm2”; one kilogram of pressure means one kilogram of force applied to one square centimeter.
Reply 1# lfyv 1 kilogram equals 1 atmosphere; 1 kg/cm2 = 1 bar
Reply 1# lfyv: kg is a unit of mass, while the unit of force is usually kgf (1 kgf = 9.8 N). kg/cm2 = 9.8 N/cm2.
One kilogram equals one atmosphere of pressure, which can also be expressed as kg/cm2, right?
1 standard atmosphere (1atm) = 1.033 engineering atmospheres (at) = 1.033 kg/cm2 = 760 mmHg = 10.33 mmH2O = 1.0133 bar = 101.33 kPa = 0.10133 MPa. 1 at = 1 kg/cm2 = 735.6 mmHg = 10 mmH2O = 0.981 bar = 98.1 kPa = 0.098 MPa. 1 mmHg = 133.322 Pa
This post was last edited and replied to by Chemical Instrument Technician on 2011-10-1 at 10:11. Reply 6# Biancheng wa: There seems to be a mistake in the conversion above. 1 standard atmosphere (1 atm) = 1.033 engineering atmospheres (at) = 1.033 kg/cm2 = 760 mmHg = 10330 mmH2O
Under normal circumstances, 1 kilogram refers to 0.1 MPa
It’s too basic – it’s something taught in junior high school; you can just look it up in a book or on Baidu! Here is the software for you: http://bbs.hcbbs.com/viewthread.php?tid=877973&highlight=
What is commonly referred to as 1 kilogram corresponds to 0.1 MPa, but it is not exactly equal.
It’s very simple: 0.1 MPa is equivalent to one kilogram, and the unit for kilogram that we use is kg/cm2