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What is 100 kPa equal to? Experts, come in

2015-10-12View Original

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The unit referred to when we talk about so-and-so kilograms is something I know to be kilogram-force per square centimeter. However, 100 kPa, when converted using software, equals one engineering atmosphere; that is, 100 kPa = 1.02 kilogram-force per square centimeter. Additionally, 100 kPa is also equal to 9.87 standard atmospheres. May I ask: does the kilogram we are referring to correspond to an engineering atmosphere or a standard atmosphere?
Reply #22015-10-12
100 kPa is equal to 0.1 MPa, which is approximately equal to 1 kg/cm2. The kilogram mentioned usually refers to engineering atmospheres.
Reply #32015-10-12
Blaise Pascal was born on June 19, 1623, in Clermont-Ferrand in the Auvergne region of the Puy-de-Dôme department. He was a French mathematician, physicist, philosopher, and essayist.
Reply #42015-10-12
Generally speaking, when referring to standard atmospheric pressure, people will simply say \"1 standard atmosphere\"; they won’t use the term \"1 kilogram.\" The mention of 1 kilogram refers only to an approximate value, and it cannot be associated with the term \"standard.\"
Reply #52015-10-12
Got it. Everyone is saying that 1 kilogram is 1.02, right?
Reply #62015-10-12
Although it is 1.02, pressure is generally expressed in kilograms, following the Soviet tradition. According to national standards from the 1960s, one kilogram equals 1 kgf/cm^2, with the unit abbreviated as at; the conversion relationship is 100 KPA = 1.01 kgf (don’t ask me why it’s not 1.02 – I don’t know either). The notation pg1 (in lowercase) corresponds to PN0.1. In accordance with Document No. 28 issued by the State Council in 1984, which approved the use of legal measurement units, the conversion relationship 1 kgf = 9.80665 N was established, which leads to the conversion relationship mentioned above. With the update of the measurement standards, it is now impossible to find products labeled in kilopounds of force (the kilopound of force system was completely abandoned back in the 1990s); therefore, 1 kilopound of force should be considered equivalent to 0.1 MPa
Reply #72015-10-12
That means 1 kilogram-force is not equal to 1.02. Is 1 kilogram-force equivalent to 0.987?
Reply #82015-10-12
Yes, 1 kilogram = 0.987 kPa, and 1 kPa = 1.02 kilograms. All can be scheduled.
Reply #92015-10-13
As stated on site, 1 barg per kilogram = 0.1 MPa, and 30 MPa = 300 kilograms
Reply #102015-10-13
Put simply, 100 kPa is roughly equivalent to one kilogram of pressure
Reply #112015-10-13
Put simply, 100 kPa is roughly equivalent to one kilogram of pressure; the answer above is correct

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